note 76744 added to function.preg-replace

Special care needs to be taken, since all regular expressions are "greedy" by default. What does it mean? Example: Text: 'the big scary house here and the big weird house over there' Expression '/big(.*)house/' Matches: 'big scary house here and the big weird house' In other words, the expression matches everything between the first occurrence of the word "big" and the last occurrence of the word "house". If you need to preserve the words 'here and the', you need a non-greedy expression. If you need a non-greedy regular expression in PHP, add the character "U" after the final slash. So our updated example will look like this: Expression: '/big(.*)house/U' Match 1: 'big scary house' Match 2: 'big weird house' Note that with the non-greedy expression we now got two matches and the words between the matches are preserved (not replaced). ---- Server IP: 69.147.83.197 Probable Submitter: 89.176.63.86 ---- Manual Page -- http://www.php.net/manual/en/function.preg-replace.php Edit -- https://master.php.net/note/edit/76744 Del: integrated -- https://master.php.net/note/delete/76744/integrated Del: useless -- https://master.php.net/note/delete/76744/useless Del: bad code -- https://master.php.net/note/delete/76744/bad+code Del: spam -- https://master.php.net/note/delete/76744/spam Del: non-english -- https://master.php.net/note/delete/76744/non-english Del: in docs -- https://master.php.net/note/delete/76744/in+docs Del: other reasons-- https://master.php.net/note/delete/76744 Reject -- https://master.php.net/note/reject/76744 Search -- https://master.php.net/manage/user-notes.php