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run code in 150+ php & hhvm versions
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<?php $words=array("ann@ibbeck.de"=>"kan", "Petermann@ibbeck.de"=>"ap", "_animal_sound_"=>"MEooow"); $source="ann@ibbeck.de, Petermann@ibbeck.de"; echo (preg_replace_callback("/\b_(\w*)_\b/", function($match) use ($words) { if(isset($words[$match[0]])){ return ($words[$match[0]]); }else{ return($match[0]); } }, $source)); ?>
Output for 5.3.0 - 7.1.0
ann@ibbeck.de, Petermann@ibbeck.de
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/PhlcJ on line 10
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/PhlcJ on line 10
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/PhlcJ on line 10
Process exited with code 255.