[php-src] Issue #8316: Unexpected behavior of preg_match
| From: | great-handsome | Date: | Thu, 07 Apr 2022 12:49:35 +0000 |
| Subject: | [php-src] Issue #8316: Unexpected behavior of preg_match | ||
| Groups: | php.bugs | ||
| Request: | Send a blank email to php-bugs+get-240744@lists.php.net to get a copy of this message | ||
Issue: https://github.com/php/php-src/issues/8316
Author: great-handsome
### Description
The following code:
```php
<?php
$clean_text =
"22ABCDE1ABCDE2ABCDE3ABCDE4ABCDE5ABCDESubtotalABCDE1ABCDE11111ABCDE111111ABCDE22222222222222222222222222222222222ABCDE111111111111111ABCDE211111111111111111111111ABCDE111111111111111111111111ABCDE11111111111111111111111111111ABCDE1111111111ABCDE11111111111111ABCDE11111111111111111111111111111111111111111111111111111";
if( preg_match(
'/(.*)ABCDE(.*)ABCDE(.*)ABCDE(.*)ABCDE(.*)ABCDE(.*)ABCDESubtotal/',$clean_text, $data_d ))
print_r($data_d);
else
echo 'NO';
```
Resulted in this output:
```
NO
```
But I expected this output instead:
```
Array
(
[0] => 22ABCDE1ABCDE2ABCDE3ABCDE4ABCDE5ABCDESubtotal
[1] => 22
[2] => 1
[3] => 2
[4] => 3
[5] => 4
[6] => 5
)
```
If I delete the last char from $clean_text ( or one char from 22222222222222222222222222222222222 )
, preg_match returns TRUE.
I tried on PHP 7.4 and 8.1 , on 2 servers.
### PHP Version
PHP 8.1
### Operating System
Ubuntu : Linux core 5.3.0-47-generic #39~18.04.1-Ubuntu SMP Mon Apr 6 17:04:32 UTC 2020 x86_64
x86_64 x86_64 GNU/Linux