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run code in 150+ php & hhvm versions
Bugs & Features
<?php $text = 'The refugee said "dam!"'; $bad_words = array("fug","schnitt","dam"); $bad_words = array_walk($bad_words, function($value, $key) { // this prepares the regex, requires PHP 5.3+ I think. return preg_quote('~\b' . $value . '\b~i'); // \b means word boundary, like space, line-break, and I think period, dash, and many others. Prevends "refudgee" from being matched when searching for "fudge" }); $good_words = array("fudge","shoot","dang"); $good_text = preg_replace($bad_words,$good_words,$text);
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
Warning: preg_replace(): Parameter mismatch, pattern is a string while replacement is an array in /in/khT6j on line 12
Output for hhvm-3.10.0 - 3.12.0
Warning: Parameter mismatch, pattern is a string while replacement is an array in /in/khT6j on line 12
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/khT6j on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/khT6j on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/khT6j on line 6
Process exited with code 255.