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Implement new array function array_column()
array_column() returns the values of the specified column from a multi-dimensional array.
This commit is contained in:
Ben Ramsey
parent
e1410b5a70
commit
9035a1ed24
@ -2563,6 +2563,87 @@ PHP_FUNCTION(array_count_values)
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}
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/* }}} */
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/* {{{ proto array array_column(array input, mixed key)
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Return the values from a single column in the input array, identified by the key */
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PHP_FUNCTION(array_column)
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{
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zval *zarray, *zoffset, **data, **zvalue;
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HashTable *arr_hash;
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HashPosition pointer;
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long index = 0;
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char *key = NULL;
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int key_len = 0;
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if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "az", &zarray, &zoffset) == FAILURE) {
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return;
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}
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arr_hash = Z_ARRVAL_P(zarray);
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array_init(return_value);
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switch (Z_TYPE_P(zoffset)) {
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case IS_NULL:
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index = 0;
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break;
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case IS_DOUBLE:
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index = (long)Z_DVAL_P(zoffset);
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break;
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case IS_BOOL:
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case IS_LONG:
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case IS_RESOURCE:
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index = Z_LVAL_P(zoffset);
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break;
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case IS_STRING:
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key = Z_STRVAL_P(zoffset);
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key_len = Z_STRLEN_P(zoffset);
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break;
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default:
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "The key should be either a string or an integer");
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return;
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}
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for (zend_hash_internal_pointer_reset_ex(arr_hash, &pointer);
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zend_hash_get_current_data_ex(arr_hash, (void**)&data, &pointer) == SUCCESS;
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zend_hash_move_forward_ex(arr_hash, &pointer)) {
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if (Z_TYPE_PP(data) == IS_ARRAY) {
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if (key && zend_hash_find(Z_ARRVAL_PP(data), key, key_len + 1, (void**)&zvalue) == FAILURE) {
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continue;
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} else if (!key && zend_hash_index_find(Z_ARRVAL_PP(data), index, (void**)&zvalue) == FAILURE) {
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continue;
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}
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switch (Z_TYPE_PP(zvalue)) {
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case IS_NULL:
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add_next_index_null(return_value);
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break;
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case IS_LONG:
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add_next_index_long(return_value, Z_LVAL_PP(zvalue));
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break;
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case IS_DOUBLE:
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add_next_index_double(return_value, Z_DVAL_PP(zvalue));
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break;
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case IS_BOOL:
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add_next_index_bool(return_value, Z_BVAL_PP(zvalue));
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break;
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case IS_OBJECT:
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zval_add_ref(zvalue);
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add_next_index_zval(return_value, *zvalue);
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break;
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case IS_STRING:
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add_next_index_stringl(return_value, Z_STRVAL_PP(zvalue), Z_STRLEN_PP(zvalue), 1);
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break;
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case IS_RESOURCE:
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zval_add_ref(zvalue);
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add_next_index_resource(return_value, Z_RESVAL_PP(zvalue));
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break;
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}
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}
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}
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}
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/* }}} */
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/* {{{ proto array array_reverse(array input [, bool preserve keys])
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Return input as a new array with the order of the entries reversed */
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PHP_FUNCTION(array_reverse)
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@ -433,6 +433,11 @@ ZEND_BEGIN_ARG_INFO(arginfo_array_count_values, 0)
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ZEND_ARG_INFO(0, arg) /* ARRAY_INFO(0, arg, 0) */
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ZEND_END_ARG_INFO()
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ZEND_BEGIN_ARG_INFO_EX(arginfo_array_column, 0, 0, 2)
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ZEND_ARG_INFO(0, arg) /* ARRAY_INFO(0, arg, 0) */
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ZEND_ARG_INFO(0, key)
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ZEND_END_ARG_INFO()
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ZEND_BEGIN_ARG_INFO_EX(arginfo_array_reverse, 0, 0, 1)
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ZEND_ARG_INFO(0, input) /* ARRAY_INFO(0, arg, 0) */
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ZEND_ARG_INFO(0, preserve_keys)
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@ -3299,6 +3304,7 @@ const zend_function_entry basic_functions[] = { /* {{{ */
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PHP_FE(array_keys, arginfo_array_keys)
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PHP_FE(array_values, arginfo_array_values)
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PHP_FE(array_count_values, arginfo_array_count_values)
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PHP_FE(array_column, arginfo_array_column)
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PHP_FE(array_reverse, arginfo_array_reverse)
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PHP_FE(array_reduce, arginfo_array_reduce)
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PHP_FE(array_pad, arginfo_array_pad)
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@ -71,6 +71,7 @@ PHP_FUNCTION(array_replace_recursive);
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PHP_FUNCTION(array_keys);
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PHP_FUNCTION(array_values);
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PHP_FUNCTION(array_count_values);
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PHP_FUNCTION(array_column);
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PHP_FUNCTION(array_reverse);
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PHP_FUNCTION(array_reduce);
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PHP_FUNCTION(array_pad);
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138
ext/standard/tests/array/array_column.phpt
Normal file
138
ext/standard/tests/array/array_column.phpt
Normal file
@ -0,0 +1,138 @@
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--TEST--
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Test array_column_values() function
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--FILE--
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<?php
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/* Prototype:
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* array array_column(array $input, mixed $key);
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* Description:
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* Returns an array containing all the values from
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* the specified "column" in a two-dimensional array.
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*/
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echo "*** Testing basic functionalities ***\n";
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/* Array representing a possible record set returned from a database */
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$records = array(
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array(
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'id' => 1,
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'first_name' => 'John',
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'last_name' => 'Doe'
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),
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array(
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'id' => 2,
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'first_name' => 'Sally',
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'last_name' => 'Smith'
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),
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array(
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'id' => 3,
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'first_name' => 'Jane',
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'last_name' => 'Jones'
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)
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);
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echo "-- first_name column from recordset --\n";
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var_dump(array_column($records, 'first_name'));
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echo "-- id column from recordset --\n";
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var_dump(array_column($records, 'id'));
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echo "\n*** Testing multiple data types ***\n";
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$file = basename(__FILE__);
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$fh = fopen($file, 'r', true);
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$values = array(
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array(
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'id' => 1,
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'value' => new stdClass
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),
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array(
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'id' => 2,
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'value' => 34.2345
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),
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array(
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'id' => 3,
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'value' => true
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),
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array(
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'id' => 4,
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'value' => false
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),
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array(
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'id' => 5,
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'value' => null
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),
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array(
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'id' => 6,
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'value' => 1234
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),
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array(
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'id' => 7,
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'value' => 'Foo'
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),
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array(
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'id' => 8,
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'value' => $fh
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)
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);
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var_dump(array_column($values, 'value'));
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echo "\n*** Testing numeric column keys ***\n";
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$numericCols = array(
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array('aaa', '111'),
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array('bbb', '222'),
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array('ccc', '333')
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);
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var_dump(array_column($numericCols, 1));
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echo "Done\n";
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?>
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--EXPECTF--
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*** Testing basic functionalities ***
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-- first_name column from recordset --
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array(3) {
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[0]=>
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string(4) "John"
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[1]=>
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string(5) "Sally"
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[2]=>
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string(4) "Jane"
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}
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-- id column from recordset --
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array(3) {
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[0]=>
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int(1)
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[1]=>
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int(2)
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[2]=>
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int(3)
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}
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*** Testing multiple data types ***
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array(8) {
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[0]=>
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object(stdClass)#1 (0) {
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}
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[1]=>
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float(34.2345)
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[2]=>
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bool(true)
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[3]=>
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bool(false)
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[4]=>
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NULL
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[5]=>
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int(1234)
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[6]=>
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string(3) "Foo"
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[7]=>
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resource(5) of type (stream)
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}
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*** Testing numeric column keys ***
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array(3) {
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[0]=>
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string(3) "111"
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[1]=>
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string(3) "222"
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[2]=>
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string(3) "333"
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}
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Done
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