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1333 lines
26 KiB
PHP
1333 lines
26 KiB
PHP
--TEST--
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Test unset(), empty() and isset() functions
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--FILE--
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<?php
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/* Prototype: void unset ( mixed $var [, mixed $var [, mixed $...]] );
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Description: unset() destroys the specified variables
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Prototype: bool empty( mixed $var );
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Description: Determine whether a variable is considered to be empty
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Prototype: bool isset ( mixed $var [, mixed $var [, $...]] );
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Description: Returns TRUE if var exists; FALSE otherwise
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*/
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echo "*** Testing unset(), empty() & isset() with scalar variables ***\n";
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// testing scalar variables
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$scalar_variables = array(
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0,
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1,
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+1
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-1,
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0x55,
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-0xFA,
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0123,
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-0563,
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0.0,
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1e5,
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1E-5,
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-1.5e5,
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+5.6,
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"",
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'',
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" ",
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' ',
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"string",
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"123",
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"0",
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"ture",
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"FALSE",
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"NULL",
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"null",
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true,
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false,
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TRUE,
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FALSE
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);
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$loop_counter = 1;
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foreach ($scalar_variables as $scalar_var) {
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$set_var = 10; // this variable to use with isset
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echo "-- Iteration $loop_counter --\n"; $loop_counter++;
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// checking with isset before unsetting, expected: bool(true)
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var_dump( isset($scalar_var) );
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var_dump( isset($scalar_var, $set_var) );
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// checking if the var is empty, expected: bool(false) on most
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// except "", 0, "0", NULL, FALSE
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var_dump( empty($scalar_var) );
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// destroy the variable using unset
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unset( $scalar_var );
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// dump and see if its destroyed, expcted: NULL
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var_dump( $scalar_var );
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// check using isset to see if unset, expected: bool(false)
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var_dump( isset($scalar_var) );
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var_dump( isset($scalar_var, $set_var) );
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// empty to check if empty, expecting bool(true)
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var_dump( empty($scalar_var) );
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// isset() with two args, one arg only unset, expected: bool(false)
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var_dump( isset($scalar_var, $set_var) );
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// isset() with two args, both args already unset, expected: bool(false);
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unset($set_var);
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var_dump( isset($scalar_var, $set_var) );
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}
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echo "\n*** Testing unset(), empty() & isset() with arrays ***\n";
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$array_variables = array(
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array(),
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array(NULL),
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array(0),
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array("0"),
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array(""),
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array(1,2,3,4),
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array(1.4,2.5,5.6),
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array(1 => "One", 2 => "two"),
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array("Name" => "Jack", "Age" => "30"),
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array(1,2, "One" => "1", 2 => "two", ""=>"empty", "" => '')
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);
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$outer_loop_counter = 1;
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foreach ($array_variables as $array_var) {
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echo "--- Outerloop Iteration $outer_loop_counter ---\n";
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// check the isset and unset on non existing key
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$var = 1; // a var which is defined
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// try to unset the element which is non-existent
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unset($array_var['non_existent']);
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// check using isset() & empty() on a non_existent element in the array
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var_dump( isset($array_var['non_existent']) );
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var_dump( isset($array_var['non_existent'], $var) );
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var_dump( isset($array_var['non_existent'], $array_var['none']) );
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var_dump( empty($array_var['non_existent']) );
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// testing empty and isset on arrays
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var_dump( empty($array_var) ); // expecting bool(false), except: array(), which is considered empty
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var_dump( isset($array_var) ); // expecting bool(true), except: array(), which is not set
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// get the keys of the $array_var
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$keys = array_keys($array_var);
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// unset each element in the array and see the working of unset, isset & empty
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$inner_loop_counter = 1;
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foreach ($keys as $key_value) {
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echo "-- Innerloop Iteration $inner_loop_counter of Outerloop Iteration $outer_loop_counter --\n";
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$inner_loop_counter++;
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// unset the element
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unset($array_var[$key_value]);
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// dump the array after element was unset
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var_dump($array_var);
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// check using isset for the element that was unset
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var_dump( isset($array_var[$key_val]) ); // expected: bool(false)
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// calling isset with more args
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var_dump( isset($array_var[$key_val], $array_var) ); //expected: bool(false)
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// calling empty, expected bool(true)
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var_dump( empty($array_var[$key_val]) );
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// dump the array to see that that array did not get modified
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// because of using isset, empty and unset on its element
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var_dump($array_var);
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}
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$outer_loop_counter++;
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// unset the whole array
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unset($array_var);
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// dump the array to see its unset
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var_dump($array_var);
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// use isset to see that array is not set
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var_dump( isset($array_var) ); //expected: bool(false)
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var_dump( isset($array_var, $array_var[$key_val]) ); // expected: bool(false)
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// empty() to see if the array is empty
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var_dump( empty($array_var) ); // expected: bool(true)
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}
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echo "\n*** Testing unset(), emtpy() & isset() with resource variables ***\n";
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$fp = fopen(__FILE__, "r");
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$dfp = opendir( dirname(__FILE__) );
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$resources = array (
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$fp,
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$dfp
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);
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$loop_counter = 1;
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foreach ($resources as $resource) {
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$temp_var = 10;
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echo "-- Iteration $loop_counter --\n"; $loop_counter++;
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//dump the resource first
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var_dump($resource);
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// check using isset() and empty()
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var_dump( isset($resource) ); // expected: bool(true)
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var_dump( empty($resource) ); // expected: bool(false)
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// call isset() with two args, both set
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var_dump( isset($resource, $temp_var) ); // expected: bool(true)
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// dump the resource to see using isset() and empty () had no effect on it
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var_dump($resource);
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// unset the resource
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unset($resource);
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// check using isset() and empty()
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var_dump( isset($resource) ); // expected: bool(flase)
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var_dump( empty($resource) ); // expected: bool(true)
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// call isset() with two args, but one set
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var_dump( isset($resource, $temp_var) ); // expected: bool(false)
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// uset the temp_var
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unset($temp_var);
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// now the isset() with both the args as unset
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var_dump( isset($resource, $temp_var) ); // expected: bool(false);
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// dump the resource to see if there any effect on it
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var_dump($resource);
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}
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// unset and dump the array containing all the resources to see that
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// unset works correctly
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unset($resources);
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var_dump($resources);
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var_dump( isset($resources) ); //expected: bool(false)
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var_dump( empty($resources) ); // expected: bool(true)
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echo "\n*** Testing unset(), empty() & isset() with objects ***\n";
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class Point
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{
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var $x;
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var $y;
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var $lable;
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function Point($x, $y) {
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$this->x = $x;
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$this->y = $y;
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}
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function setLable($lable) {
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$this->lable = $lable;
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}
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function testPoint() {
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echo "\nPoint::testPoint() called\n";
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}
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}
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$point1 = new Point(30,40);
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// use unset/empty/isset to check the object
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var_dump($point1); // dump the object
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// check the object and member that is not set
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var_dump( isset($point1) ); // expected: bool(true)
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var_dump( empty($point1) ); // expected: bool(false)
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var_dump( isset($point1->$lable) ); //expected: bool(flase)
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var_dump( empty($point1->$lable) ); //expected: bool(true)
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//set the member variable lable and check
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$point1->setLable("Point1");
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var_dump( isset($point1->$lable) ); //expected: bool(true)
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var_dump( empty($point1->$lable) ); //expected: bool(false)
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// dump the object to see that obj was not harmed
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// because of the usage of the isset & empty
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var_dump($point1);
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//unset a member and check
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unset($point1->x);
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// dump the point to see that variable was unset
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var_dump($point1);
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var_dump( isset($point1->x) ); // expected: bool(false)
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var_dump( empty($point1->x) ); // expected: bool(true)
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// unset all members and check
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unset($point1->y);
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unset($point1->lable);
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// dump the objec to check that all variables are unset
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var_dump($point1);
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var_dump( isset($point1) ); // expected: bool(ture)
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var_dump( empty($point1) ); // expected: bool(false)
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//unset the object and check
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unset($point1);
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var_dump( isset($point1) ); // expected: bool(false)
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var_dump( empty($point1) ); // expected: bool(true)
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// dump to see that object is unset
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var_dump($point1);
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// try isset/unset/empty on a member function
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$point2 = new Point(5,6);
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var_dump( isset($point2->testPoint) );
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var_dump( empty($point2->testPoint) );
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unset($point2->testPoint);
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var_dump( isset($point2->testPoint) );
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var_dump( empty($point2->testPoint) );
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// use get_class_methods to see effect if any
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var_dump( get_class_methods($point2) );
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// dump the object to see the effect, none expected
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var_dump($point2);
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/* testing variation in operation for isset(), empty() & unset().
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Note: Most of the variation for function unset() is testing by a
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set of testcases named "Zend/tests/unset_cv??.phpt", only
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variation not tested are attempted here */
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echo "\n*** Testing possible variation in operation for isset(), empty() & unset() ***\n";
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/* unset() variation1: checking unset on static variable inside a function.
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* unset() destroys the variable only in the context of the rest of a function
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* Following calls will restore the previous value of a variable.
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*/
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echo "\n** Testing unset() variation 1: unset on static variable inside a function **\n";
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function test_unset1() {
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static $static_var;
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// increment the value of the static. this change is in function context
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$static_var ++;
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echo "value of static_var before unset: $static_var\n";
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// check using isset and empty
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var_dump( isset($static_var) );
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var_dump( empty($static_var) );
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// unset the static var
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unset($static_var);
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echo "value of static_var after unset: $static_var\n";
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// check using isset and empty
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var_dump( isset($static_var) );
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var_dump( empty($static_var) );
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// assign a value to static var
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$static_var = 20;
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echo "value of static_var after new assignment: $static_var\n";
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}
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// call the functiont
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test_unset1();
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test_unset1();
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test_unset1();
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echo "\n** Testing unset() variation 2: unset on a variable passed by ref. inside of a function **\n";
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/* unset() variation2: Pass by reference
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* If a variable that is PASSED BY REFERENCE is unset() inside of a function,
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* only the local variable is destroyed. The variable in the calling environment
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* will retain the same value as before unset() was called.
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*/
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function test_unset2( &$ref_val ) {
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// unset the variable passed
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unset($ref_val);
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// check using isset and empty to confirm
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var_dump( isset($ref_val) );
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var_dump( empty($ref_val) );
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// set the value ot a new one
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$ref_val = "new value by ref";
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}
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$value = "value";
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var_dump($value);
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test_unset2($value);
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var_dump($value);
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echo "\n** Testing unset() variation 3: unset on a global variable inside of a function **\n";
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/* unset() variation2: unset on a global variable inside a function
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* If a globalized variable is unset() inside of a function, only the
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* local variable is destroyed. The variable in the calling environment
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* will retain the same value as before unset() was called.
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*/
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$global_var = 10;
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function test_unset3() {
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global $global_var;
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// check the $global_var using isset and empty
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var_dump( isset($global_var) );
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var_dump( empty($global_var) );
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// unset the global var
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unset($global_var);
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// check the $global_var using isset and empty
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var_dump( isset($global_var) );
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var_dump( empty($global_var) );
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}
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var_dump($global_var);
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test_unset3();
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var_dump($global_var);
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//Note: No error conditions relating to passing arugments can be tested
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// because these are not functions but statements, it will result in syntax error.
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echo "Done\n";
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--EXPECTF--
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*** Testing unset(), empty() & isset() with scalar variables ***
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-- Iteration 1 --
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bool(true)
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bool(true)
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bool(true)
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Notice: Undefined variable: scalar_var in %s on line %d
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NULL
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bool(false)
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bool(false)
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bool(true)
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bool(false)
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bool(false)
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-- Iteration 2 --
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bool(true)
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bool(true)
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bool(false)
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Notice: Undefined variable: scalar_var in %s on line %d
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NULL
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bool(false)
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bool(false)
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bool(true)
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bool(false)
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bool(false)
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-- Iteration 3 --
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bool(true)
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bool(true)
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bool(true)
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Notice: Undefined variable: scalar_var in %s on line %d
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NULL
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bool(false)
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bool(false)
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bool(true)
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bool(false)
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bool(false)
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-- Iteration 4 --
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bool(true)
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bool(true)
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bool(false)
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Notice: Undefined variable: scalar_var in %s on line %d
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NULL
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bool(false)
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bool(false)
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bool(true)
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bool(false)
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bool(false)
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-- Iteration 5 --
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bool(true)
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bool(true)
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bool(false)
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Notice: Undefined variable: scalar_var in %s on line %d
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NULL
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bool(false)
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bool(false)
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bool(true)
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bool(false)
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bool(false)
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-- Iteration 6 --
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bool(true)
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bool(true)
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bool(false)
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Notice: Undefined variable: scalar_var in %s on line %d
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NULL
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bool(false)
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bool(false)
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bool(true)
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bool(false)
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bool(false)
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-- Iteration 7 --
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bool(true)
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bool(true)
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bool(false)
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Notice: Undefined variable: scalar_var in %s on line %d
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NULL
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bool(false)
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bool(false)
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bool(true)
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bool(false)
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bool(false)
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-- Iteration 8 --
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bool(true)
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bool(true)
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bool(true)
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Notice: Undefined variable: scalar_var in %s on line %d
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NULL
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bool(false)
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bool(false)
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bool(true)
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bool(false)
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bool(false)
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-- Iteration 9 --
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bool(true)
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bool(true)
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bool(false)
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Notice: Undefined variable: scalar_var in %s on line %d
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NULL
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bool(false)
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bool(false)
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bool(true)
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bool(false)
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bool(false)
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-- Iteration 10 --
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bool(true)
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bool(true)
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bool(false)
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Notice: Undefined variable: scalar_var in %s on line %d
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NULL
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bool(false)
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bool(false)
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bool(true)
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bool(false)
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bool(false)
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-- Iteration 11 --
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bool(true)
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bool(true)
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bool(false)
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Notice: Undefined variable: scalar_var in %s on line %d
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NULL
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bool(false)
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bool(false)
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bool(true)
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bool(false)
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bool(false)
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-- Iteration 12 --
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bool(true)
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bool(true)
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bool(false)
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Notice: Undefined variable: scalar_var in %s on line %d
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NULL
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bool(false)
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bool(false)
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bool(true)
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bool(false)
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bool(false)
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-- Iteration 13 --
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bool(true)
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bool(true)
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bool(true)
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Notice: Undefined variable: scalar_var in %s on line %d
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NULL
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bool(false)
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bool(false)
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bool(true)
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bool(false)
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bool(false)
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-- Iteration 14 --
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bool(true)
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bool(true)
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bool(true)
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Notice: Undefined variable: scalar_var in %s on line %d
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NULL
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bool(false)
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bool(false)
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bool(true)
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bool(false)
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bool(false)
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-- Iteration 15 --
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bool(true)
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bool(true)
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bool(false)
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|
Notice: Undefined variable: scalar_var in %s on line %d
|
|
NULL
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
bool(false)
|
|
bool(false)
|
|
-- Iteration 16 --
|
|
bool(true)
|
|
bool(true)
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: scalar_var in %s on line %d
|
|
NULL
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
bool(false)
|
|
bool(false)
|
|
-- Iteration 17 --
|
|
bool(true)
|
|
bool(true)
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: scalar_var in %s on line %d
|
|
NULL
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
bool(false)
|
|
bool(false)
|
|
-- Iteration 18 --
|
|
bool(true)
|
|
bool(true)
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: scalar_var in %s on line %d
|
|
NULL
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
bool(false)
|
|
bool(false)
|
|
-- Iteration 19 --
|
|
bool(true)
|
|
bool(true)
|
|
bool(true)
|
|
|
|
Notice: Undefined variable: scalar_var in %s on line %d
|
|
NULL
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
bool(false)
|
|
bool(false)
|
|
-- Iteration 20 --
|
|
bool(true)
|
|
bool(true)
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: scalar_var in %s on line %d
|
|
NULL
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
bool(false)
|
|
bool(false)
|
|
-- Iteration 21 --
|
|
bool(true)
|
|
bool(true)
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: scalar_var in %s on line %d
|
|
NULL
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
bool(false)
|
|
bool(false)
|
|
-- Iteration 22 --
|
|
bool(true)
|
|
bool(true)
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: scalar_var in %s on line %d
|
|
NULL
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
bool(false)
|
|
bool(false)
|
|
-- Iteration 23 --
|
|
bool(true)
|
|
bool(true)
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: scalar_var in %s on line %d
|
|
NULL
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
bool(false)
|
|
bool(false)
|
|
-- Iteration 24 --
|
|
bool(true)
|
|
bool(true)
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: scalar_var in %s on line %d
|
|
NULL
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
bool(false)
|
|
bool(false)
|
|
-- Iteration 25 --
|
|
bool(true)
|
|
bool(true)
|
|
bool(true)
|
|
|
|
Notice: Undefined variable: scalar_var in %s on line %d
|
|
NULL
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
bool(false)
|
|
bool(false)
|
|
-- Iteration 26 --
|
|
bool(true)
|
|
bool(true)
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: scalar_var in %s on line %d
|
|
NULL
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
bool(false)
|
|
bool(false)
|
|
-- Iteration 27 --
|
|
bool(true)
|
|
bool(true)
|
|
bool(true)
|
|
|
|
Notice: Undefined variable: scalar_var in %s on line %d
|
|
NULL
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
bool(false)
|
|
bool(false)
|
|
|
|
*** Testing unset(), empty() & isset() with arrays ***
|
|
--- Outerloop Iteration 1 ---
|
|
bool(false)
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
bool(true)
|
|
bool(true)
|
|
|
|
Notice: Undefined variable: array_var in %s on line %d
|
|
NULL
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
--- Outerloop Iteration 2 ---
|
|
bool(false)
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
bool(false)
|
|
bool(true)
|
|
-- Innerloop Iteration 1 of Outerloop Iteration 2 --
|
|
array(0) {
|
|
}
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
array(0) {
|
|
}
|
|
|
|
Notice: Undefined variable: array_var in %s on line %d
|
|
NULL
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
--- Outerloop Iteration 3 ---
|
|
bool(false)
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
bool(false)
|
|
bool(true)
|
|
-- Innerloop Iteration 1 of Outerloop Iteration 3 --
|
|
array(0) {
|
|
}
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
array(0) {
|
|
}
|
|
|
|
Notice: Undefined variable: array_var in %s on line %d
|
|
NULL
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
--- Outerloop Iteration 4 ---
|
|
bool(false)
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
bool(false)
|
|
bool(true)
|
|
-- Innerloop Iteration 1 of Outerloop Iteration 4 --
|
|
array(0) {
|
|
}
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
array(0) {
|
|
}
|
|
|
|
Notice: Undefined variable: array_var in %s on line %d
|
|
NULL
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
--- Outerloop Iteration 5 ---
|
|
bool(false)
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
bool(false)
|
|
bool(true)
|
|
-- Innerloop Iteration 1 of Outerloop Iteration 5 --
|
|
array(0) {
|
|
}
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
array(0) {
|
|
}
|
|
|
|
Notice: Undefined variable: array_var in %s on line %d
|
|
NULL
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
--- Outerloop Iteration 6 ---
|
|
bool(false)
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
bool(false)
|
|
bool(true)
|
|
-- Innerloop Iteration 1 of Outerloop Iteration 6 --
|
|
array(3) {
|
|
[1]=>
|
|
int(2)
|
|
[2]=>
|
|
int(3)
|
|
[3]=>
|
|
int(4)
|
|
}
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
array(3) {
|
|
[1]=>
|
|
int(2)
|
|
[2]=>
|
|
int(3)
|
|
[3]=>
|
|
int(4)
|
|
}
|
|
-- Innerloop Iteration 2 of Outerloop Iteration 6 --
|
|
array(2) {
|
|
[2]=>
|
|
int(3)
|
|
[3]=>
|
|
int(4)
|
|
}
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
array(2) {
|
|
[2]=>
|
|
int(3)
|
|
[3]=>
|
|
int(4)
|
|
}
|
|
-- Innerloop Iteration 3 of Outerloop Iteration 6 --
|
|
array(1) {
|
|
[3]=>
|
|
int(4)
|
|
}
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
array(1) {
|
|
[3]=>
|
|
int(4)
|
|
}
|
|
-- Innerloop Iteration 4 of Outerloop Iteration 6 --
|
|
array(0) {
|
|
}
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
array(0) {
|
|
}
|
|
|
|
Notice: Undefined variable: array_var in %s on line %d
|
|
NULL
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
--- Outerloop Iteration 7 ---
|
|
bool(false)
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
bool(false)
|
|
bool(true)
|
|
-- Innerloop Iteration 1 of Outerloop Iteration 7 --
|
|
array(2) {
|
|
[1]=>
|
|
float(2.5)
|
|
[2]=>
|
|
float(5.6)
|
|
}
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
array(2) {
|
|
[1]=>
|
|
float(2.5)
|
|
[2]=>
|
|
float(5.6)
|
|
}
|
|
-- Innerloop Iteration 2 of Outerloop Iteration 7 --
|
|
array(1) {
|
|
[2]=>
|
|
float(5.6)
|
|
}
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
array(1) {
|
|
[2]=>
|
|
float(5.6)
|
|
}
|
|
-- Innerloop Iteration 3 of Outerloop Iteration 7 --
|
|
array(0) {
|
|
}
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
array(0) {
|
|
}
|
|
|
|
Notice: Undefined variable: array_var in %s on line %d
|
|
NULL
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
--- Outerloop Iteration 8 ---
|
|
bool(false)
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
bool(false)
|
|
bool(true)
|
|
-- Innerloop Iteration 1 of Outerloop Iteration 8 --
|
|
array(1) {
|
|
[2]=>
|
|
string(3) "two"
|
|
}
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
array(1) {
|
|
[2]=>
|
|
string(3) "two"
|
|
}
|
|
-- Innerloop Iteration 2 of Outerloop Iteration 8 --
|
|
array(0) {
|
|
}
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
array(0) {
|
|
}
|
|
|
|
Notice: Undefined variable: array_var in %s on line %d
|
|
NULL
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
--- Outerloop Iteration 9 ---
|
|
bool(false)
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
bool(false)
|
|
bool(true)
|
|
-- Innerloop Iteration 1 of Outerloop Iteration 9 --
|
|
array(1) {
|
|
["Age"]=>
|
|
string(2) "30"
|
|
}
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
array(1) {
|
|
["Age"]=>
|
|
string(2) "30"
|
|
}
|
|
-- Innerloop Iteration 2 of Outerloop Iteration 9 --
|
|
array(0) {
|
|
}
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
array(0) {
|
|
}
|
|
|
|
Notice: Undefined variable: array_var in %s on line %d
|
|
NULL
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
--- Outerloop Iteration 10 ---
|
|
bool(false)
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
bool(false)
|
|
bool(true)
|
|
-- Innerloop Iteration 1 of Outerloop Iteration 10 --
|
|
array(4) {
|
|
[1]=>
|
|
int(2)
|
|
["One"]=>
|
|
string(1) "1"
|
|
[2]=>
|
|
string(3) "two"
|
|
[""]=>
|
|
string(0) ""
|
|
}
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
array(4) {
|
|
[1]=>
|
|
int(2)
|
|
["One"]=>
|
|
string(1) "1"
|
|
[2]=>
|
|
string(3) "two"
|
|
[""]=>
|
|
string(0) ""
|
|
}
|
|
-- Innerloop Iteration 2 of Outerloop Iteration 10 --
|
|
array(3) {
|
|
["One"]=>
|
|
string(1) "1"
|
|
[2]=>
|
|
string(3) "two"
|
|
[""]=>
|
|
string(0) ""
|
|
}
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
array(3) {
|
|
["One"]=>
|
|
string(1) "1"
|
|
[2]=>
|
|
string(3) "two"
|
|
[""]=>
|
|
string(0) ""
|
|
}
|
|
-- Innerloop Iteration 3 of Outerloop Iteration 10 --
|
|
array(2) {
|
|
[2]=>
|
|
string(3) "two"
|
|
[""]=>
|
|
string(0) ""
|
|
}
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
array(2) {
|
|
[2]=>
|
|
string(3) "two"
|
|
[""]=>
|
|
string(0) ""
|
|
}
|
|
-- Innerloop Iteration 4 of Outerloop Iteration 10 --
|
|
array(1) {
|
|
[""]=>
|
|
string(0) ""
|
|
}
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
array(1) {
|
|
[""]=>
|
|
string(0) ""
|
|
}
|
|
-- Innerloop Iteration 5 of Outerloop Iteration 10 --
|
|
array(0) {
|
|
}
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: key_val in %s on line %d
|
|
bool(true)
|
|
array(0) {
|
|
}
|
|
|
|
Notice: Undefined variable: array_var in %s on line %d
|
|
NULL
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
|
|
*** Testing unset(), emtpy() & isset() with resource variables ***
|
|
-- Iteration 1 --
|
|
resource(5) of type (stream)
|
|
bool(true)
|
|
bool(false)
|
|
bool(true)
|
|
resource(5) of type (stream)
|
|
bool(false)
|
|
bool(true)
|
|
bool(false)
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: resource in %s on line %d
|
|
NULL
|
|
-- Iteration 2 --
|
|
resource(6) of type (stream)
|
|
bool(true)
|
|
bool(false)
|
|
bool(true)
|
|
resource(6) of type (stream)
|
|
bool(false)
|
|
bool(true)
|
|
bool(false)
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: resource in %s on line %d
|
|
NULL
|
|
|
|
Notice: Undefined variable: resources in %s on line %d
|
|
NULL
|
|
bool(false)
|
|
bool(true)
|
|
|
|
*** Testing unset(), empty() & isset() with objects ***
|
|
object(Point)#1 (3) {
|
|
["x"]=>
|
|
int(30)
|
|
["y"]=>
|
|
int(40)
|
|
["lable"]=>
|
|
NULL
|
|
}
|
|
bool(true)
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: lable in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: lable in %s on line %d
|
|
bool(true)
|
|
|
|
Notice: Undefined variable: lable in %s on line %d
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: lable in %s on line %d
|
|
bool(true)
|
|
object(Point)#1 (3) {
|
|
["x"]=>
|
|
int(30)
|
|
["y"]=>
|
|
int(40)
|
|
["lable"]=>
|
|
string(6) "Point1"
|
|
}
|
|
object(Point)#1 (2) {
|
|
["y"]=>
|
|
int(40)
|
|
["lable"]=>
|
|
string(6) "Point1"
|
|
}
|
|
bool(false)
|
|
bool(true)
|
|
object(Point)#1 (0) {
|
|
}
|
|
bool(true)
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
|
|
Notice: Undefined variable: point1 in %s on line %d
|
|
NULL
|
|
bool(false)
|
|
bool(true)
|
|
bool(false)
|
|
bool(true)
|
|
array(3) {
|
|
[0]=>
|
|
string(5) "Point"
|
|
[1]=>
|
|
string(8) "setLable"
|
|
[2]=>
|
|
string(9) "testPoint"
|
|
}
|
|
object(Point)#1 (3) {
|
|
["x"]=>
|
|
int(5)
|
|
["y"]=>
|
|
int(6)
|
|
["lable"]=>
|
|
NULL
|
|
}
|
|
|
|
*** Testing possible variation in operation for isset(), empty() & unset() ***
|
|
|
|
** Testing unset() variation 1: unset on static variable inside a function **
|
|
value of static_var before unset: 1
|
|
bool(true)
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: static_var in %s on line %d
|
|
value of static_var after unset:
|
|
bool(false)
|
|
bool(true)
|
|
value of static_var after new assignment: 20
|
|
value of static_var before unset: 2
|
|
bool(true)
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: static_var in %s on line %d
|
|
value of static_var after unset:
|
|
bool(false)
|
|
bool(true)
|
|
value of static_var after new assignment: 20
|
|
value of static_var before unset: 3
|
|
bool(true)
|
|
bool(false)
|
|
|
|
Notice: Undefined variable: static_var in %s on line %d
|
|
value of static_var after unset:
|
|
bool(false)
|
|
bool(true)
|
|
value of static_var after new assignment: 20
|
|
|
|
** Testing unset() variation 2: unset on a variable passed by ref. inside of a function **
|
|
string(5) "value"
|
|
bool(false)
|
|
bool(true)
|
|
string(5) "value"
|
|
|
|
** Testing unset() variation 3: unset on a global variable inside of a function **
|
|
int(10)
|
|
bool(true)
|
|
bool(false)
|
|
bool(false)
|
|
bool(true)
|
|
int(10)
|
|
Done
|