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Fixed bug #39018 (Error control operator '@' fails to suppress "Uninitialized string offset")

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This commit is contained in:
Felipe Pena 2008-03-08 11:35:12 +00:00
parent 342a75906a
commit ddc8a63168
3 changed files with 103 additions and 1 deletions
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82
Zend/tests/bug39018.phpt Normal file
View File

@ -0,0 +1,82 @@
--TEST--
Bug #39018 (Error control operator '@' fails to suppress "Uninitialized string offset")
--FILE--
<?php
error_reporting(E_ALL);
$a = 'foo';
$a[11111111111];
$a = '';
$a[0];
print $a[0]; // 12
$a[-11111111111111111111111];
print $a[-11111111111111111111111]; // 16
$a[-0];
$x = 'test';
@$x[4];
@$y = $x[4];
@('a' == $x[4]);
$x[4] == 'a'; // 28
@$x[4] == 'a';
(@$x[4]) == 'a';
($x[4]) == 'a'; // 34
(@($x[4])) == 'a';
(($x[4])) == 'a'; // 38
@($x[4]) == 'a';
($x[4]) == 'a'; // 42
@($x[4] == 'a');
($x[4] == 'a'); // 46
$y = 'foobar';
$y[12.2];
print $y[12.2]; // 52
$y[3.5];
print $y[3.5]; // 56
print "\nDone\n";
?>
--EXPECTF--
Notice: Uninitialized string offset: 0 in %s on line 12
Notice: Uninitialized string offset: -2147483648 in %s on line 16
Notice: Uninitialized string offset: 4 in %s on line 28
Notice: Uninitialized string offset: 4 in %s on line 34
Notice: Uninitialized string offset: 4 in %s on line 38
Notice: Uninitialized string offset: 4 in %s on line 42
Notice: Uninitialized string offset: 4 in %s on line 46
Notice: Uninitialized string offset: 12 in %s on line 52
b
Done

18
Zend/tests/bug39018_2.phpt Normal file
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@ -0,0 +1,18 @@
--TEST--
Bug #39018 [2] (Error control operator '@' fails to suppress "Uninitialized string offset")
--FILE--
<?php
error_reporting(E_ALL);
$foo = 'test';
$x = @$foo[6];
print @($foo[100] + $foo[130]);
print "\nDone\n";
?>
--EXPECT--
0
Done

4
Zend/zend_execute.c
View File

@ -200,7 +200,6 @@ static inline zval *_get_zval_ptr_var(znode *node, temp_variable *Ts, zend_free_
if (T->str_offset.str->type != IS_STRING
|| ((int)T->str_offset.offset < 0)
|| (T->str_offset.str->value.str.len <= (int)T->str_offset.offset)) {
zend_error(E_NOTICE, "Uninitialized string offset: %d", T->str_offset.offset);
ptr->value.str.val = STR_EMPTY_ALLOC();
ptr->value.str.len = 0;
} else {
@ -1188,6 +1187,9 @@ static void zend_fetch_dimension_address_read(temp_variable *result, zval **cont
dim = &tmp;
}
if (result) {
if (Z_LVAL_P(dim) < 0 || Z_STRLEN_P(container) <= Z_LVAL_P(dim)) {
zend_error(E_NOTICE, "Uninitialized string offset: %ld", Z_LVAL_P(dim));
}
result->str_offset.str = container;
PZVAL_LOCK(container);
result->str_offset.offset = Z_LVAL_P(dim);