Update variable outside of preg_replace_callback from within the callback
14596
Are PHP Variables passed by value or by reference?
155065
What is the "break/continue $var syntax" (will be removed in PHP 5.4)?
132164
Reintroduce $HTTP_POST_VARS in PHP 5.3
35352
PHP - concatenate or directly insert variables in string
46663
Ignore html tags in preg_replace
88254
How do I perform a Perl substitution on a string while keeping the original?
42800
Calling PHP functions within HEREDOC strings
155294
Pass a JS variable to a PHP variable
5646
Updating a field programmatically, hook_node_update
52637
php - replace string occurrences
47976
Strip off URL parameter with PHP
38724
Preg_replace match on word boundery and not in link
13884
How to change a variable in a calling function from a called function?
61704
How to use variable inside parameter $_GET? example: ($_GET[$my_var])
133871
How do I implement a callback in PHP?
62910
Reuse variable in hook callback
50675
Pass a variable to a PHP script running from the command line