query: preg_replace Unknown modifier
positive_passages.docid: 2886
positive_passages.text: Warning: preg_replace(): Unknown modifier
negative_passages.docid: 58132
negative_passages.text: Warning: preg_match() [function.preg-match]: Unknown modifier '/'
negative_passages.docid: 58350
negative_passages.text: `preg_match` the Whole String in PHP
negative_passages.docid: 87037
negative_passages.text: How to decode something beginning with "\u" with PHP
negative_passages.docid: 32072
negative_passages.text: PHP: Convert any string to UTF-8 without knowing the original character set, or at least try
negative_passages.docid: 72238
negative_passages.text: How to find sub-string and replace it?
negative_passages.docid: 101511
negative_passages.text: Is there a PHP function that can escape regex patterns before they are applied?
negative_passages.docid: 59843
negative_passages.text: PHP DOMElement is Immutable. = 'No Modification Allowed Error'
negative_passages.docid: 86283
negative_passages.text: Sed - unknown option to `s'
negative_passages.docid: 1803
negative_passages.text: How to replace Microsoft-encoded quotes in PHP
negative_passages.docid: 39868
negative_passages.text: Unexpected bracket '[' - PHP
negative_passages.docid: 38694
negative_passages.text: Ruby 1.9: Regular Expressions with unknown input encoding
negative_passages.docid: 68031
negative_passages.text: PHP/REGEX: Get a string within parentheses
negative_passages.docid: 30206
negative_passages.text: Where and how is the _ (underscore) variable specified?
negative_passages.docid: 31067
negative_passages.text: Error : Warning: strpos() [function.strpos]: Offset not contained in string - can not find solution
negative_passages.docid: 100382
negative_passages.text: Curly braces in string in PHP
negative_passages.docid: 141021
negative_passages.text: How can I get at the matches when using preg_replace in PHP?