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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 4.3.11 - 7.1.7
Warning: preg_match(): Unknown modifier '.' in /in/qY0g6 on line 3 /kayak/es/husa-ciudad-de-compostela-60337.htm?checkin=2014-05-01&checkout=2014-05-02
Output for 4.3.0 - 4.3.10
Warning: Unknown modifier '.' in /in/qY0g6 on line 3 /kayak/es/husa-ciudad-de-compostela-60337.htm?checkin=2014-05-01&checkout=2014-05-02