3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { } class B { } $a = new A(); if ($a !instanceof B) { echo '$a is not a B!'; }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.30, 7.0.0 - 7.0.20, 7.1.0 - 7.1.8
Parse error: syntax error, unexpected '!' in /in/Tf1Tl on line 7
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/Tf1Tl on line 7
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Tf1Tl on line 7
Process exited with code 255.
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275.21 ms | 1410 KiB | 234 Q