3v4l.org

run code in 300+ PHP versions simultaneously
<?php $pattern="/\(((?>[^()]+)|(?R))*/\)"; //$str="(def a (x) (+ 1 x))(print (a 1))"; $str="(aaa) echo preg_match_all($pattern,$str,$out);
Output for 5.4.0 - 5.4.26
Parse error: syntax error, unexpected end of file in /in/9vCNa on line 9
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.28
Parse error: syntax error, unexpected $end in /in/9vCNa on line 9
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected $ in /in/9vCNa on line 9
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/9vCNa on line 9
Process exited with code 255.
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217.78 ms | 1394 KiB | 116 Q