3v4l.org

run code in 500+ PHP versions simultaneously
<?php class Foo { public function foo() {} } $foo = new Foo; var_dump(is_callable([$foo, 'foo'])); var_dump(is_callable([$foo, 'faa']));
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.32, 8.3.0 - 8.3.33, 8.4.1 - 8.4.24, 8.5.0 - 8.5.9
bool(true) bool(false)

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66.42 ms | 1038 KiB | 4 Q