ID: 38000
User updated by: dave at smartboy dot com
Reported By: dave at smartboy dot com
Status: Open
Bug Type: PCRE related
Operating System: Windows XP
PHP Version: 5.1.4
New Comment:
$str = str_repeat('a', 1000000); //works in PHP 5.1.2
Previous Comments:
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[2006-07-04 21:23:49] dave at smartboy dot com
It turns out that no test file is needed
$str = str_repeat('a', 1575); //works
$str = str_repeat('a', 1576); //fails
There are really two issues:
- PCRE not working for "long" strings (although 1576 bytes is not
really a "long" string). This greatly limits the usefulness of regexp
pattern matching.
- When PCRE fails the error message is VERY misleading. Surely an
E_NOTICE should be issued by preg_match() if match has failed due to
out of memory, etc.? "Could not open input file" is just plain wrong.
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[2006-07-04 14:40:01] [EMAIL PROTECTED]
please provide the zzz file. (either post a link to it or send it to my
e-mail).
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[2006-07-04 00:46:02] dave at smartboy dot com
Description:
------------
preg_match() with regexp to test for valid UTF-8 sequence - fails and
causes the error message:
'Could not open input file: <name of script>.php'
IF the subject string passed to preg_match() is longer than 1629
characters. (Or in this case the size of the file 'zzz' which contains
ASCII)
There was no such limitation in preg_match() in the previous version of
PHP (5.1.2)
Reproduce code:
---------------
$str = file_get_contents('zzz');
echo "Loaded file...\n";
$result =
preg_match('/^([\x00-\x7f]|[\xc2-\xdf][\x80-\xbf]|\xe0[\xa0-\xbf][\x80-\xbf]|'
.
'[\xe1-\xec][\x80-\xbf]{2}|\xed[\x80-\x9f][\x80-\xbf]|[\xee-\xef][\x80-\xbf]{2}|'
.
'\xf0[\x90-\xbf][\x80-\xbf]{2}|[\xf1-\xf3][\x80-\xbf]{3}|\xf4[\x80-\x8f][\x80-\xbf]{2})*$/S',
$str) === 1;
echo "Back from preg_match()\n";
var_export($result);
echo "\n";
Expected result:
----------------
Loaded file...
Back from preg_match()
true
Actual result:
--------------
Loaded file...
Could not open input file: u8.php
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Edit this bug report at http://bugs.php.net/?id=38000&edit=1
