3v4l.org

run code in 300+ PHP versions simultaneously
<?php class foo { } $f = new foo(); $x = new $f; echo instanceof($f); echo instanceof($x);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.7
Parse error: syntax error, unexpected 'instanceof' (T_INSTANCEOF) in /in/72rSA on line 11
Process exited with code 255.
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182.62 ms | 1395 KiB | 36 Q