3v4l.org

run code in 300+ PHP versions simultaneously
<?php $thing = function() { return "thing value"; } echo $thing; // expected to be "thing value", but in real life, ""
Output for 5.4.1 - 5.4.45, 5.5.24 - 5.5.30, 5.6.8 - 5.6.14
Parse error: syntax error, unexpected 'echo' (T_ECHO) in /in/rm9pa on line 5
Process exited with code 255.
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184.96 ms | 1395 KiB | 65 Q