3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ''; $b = 'hello' if(isset($a[$b]['RML_ZONE'])){ print 'Empty'; }
Output for 5.4.0 - 5.4.28
Parse error: syntax error, unexpected 'if' (T_IF) in /in/3QBHs on line 4
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_IF in /in/3QBHs on line 4
Process exited with code 255.
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187.58 ms | 1395 KiB | 65 Q