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run code in 200+ php & hhvm versions
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<?php function r($str) { $m=preg_match('/kayak/../.*/'),$str); echo $str; } r("/kayak/es/husa-ciudad-de-compostela-60337.htm?checkin=2014-05-01&checkout=2014-05-02");
Output for 5.3.0 - 5.4.28
Parse error: syntax error, unexpected ',' in /in/q5M7J on line 3
Process exited with code 255.