#30341 [Opn->Bgs]: globals not available in functions called from preg_replace_callback

ID: 30341 Updated by: derick@php.net Reported By: f_nietsje at hotmail dot com -Status: Open +Status: Bogus Bug Type: Scripting Engine problem Operating System: Win NT PHP Version: 5.0.1 New Comment: Sorry, but your problem does not imply a bug in PHP itself. For a list of more appropriate places to ask for help using PHP, please visit http://www.php.net/support.php as this bug system is not the appropriate forum for asking support questions. Thank you for your interest in PHP. derick@kossu:~$ cat bug30341.php <?php $test = "works fine\n"; function cb() { global $test; echo $test; return 42; } echo preg_replace_callback("/foo/", "cb", "foofoo"); ?> derick@kossu:~$ php-5.0dev bug30341.php works fine works fine 4242 Works fine as you can see, there must be an error in your code. Previous Comments: ------------------------------------------------------------------------ [2004-10-06 19:36:53] f_nietsje at hotmail dot com Description: ------------ I use preg_replace_callback to substitute parts of an expression with either true or false after which the expression can be evaluated using eval: _q1,1,1-2 & _q2,3-4,7 should become true & false which can be evaluated to false. The strings represent answers to questions (it's for an interview system) The problem is that the answers are stored in a global array. The (global) array can not be read from a function that is called from preg_replace_callback It would be nice if somebody can fix this :-) Reproduce code: --------------- function parseqstring($qstring) { global $qre; preg_match_all('/(\d+-\d+|\d+)/', $qstring, $numbers); $q = array_shift($numbers[0]); foreach($numbers[0] as $number) { //if its a number check the answer if(is_numeric($number)) { //if the answer is there return true because it's all 'or' conditions if($qre[$q]['answers'][$number]==1) { return 'true'; } } //if its a range check all the numbers in the range if(preg_match('/(\d+)-(\d+)/', $number, $match)) { for($i=$match[1];$i<=$match[2];$i++) { if($qre[$q]['answers'][$i]) { return 'true'; } } } } return 'false'; } Expected result: ---------------- input: $qstring = _q1,1,3-4 $qre[1]['answers'][3] output: 'true' Actual result: -------------- 'false' ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=30341&edit=1