3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = function () { return 'b'; }(); echo $a;
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.6
Parse error: syntax error, unexpected '(' in /in/XBR4T on line 3
Process exited with code 255.
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174.71 ms | 1395 KiB | 35 Q