3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo {} class Bar extends Foo {} class Baz {} $foo = new Foo; $bar = new Bar; $baz = new Baz; var_dump([ !($bar instanceof 'Foo'), !('Bar' instanceof 'Foo'), !($baz instanceof $foo), ]);
Output for 5.4.0 - 5.4.32
Parse error: syntax error, unexpected ''Foo'' (T_CONSTANT_ENCAPSED_STRING) in /in/BTQO6 on line 14
Process exited with code 255.
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
Parse error: syntax error, unexpected '[', expecting ')' in /in/BTQO6 on line 13
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 '[', expecting ')' in /in/BTQO6 on line 13
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/BTQO6 on line 13
Process exited with code 255.
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