3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public function foo() {} } $f = new Foo; var_dump(method_exists($f, NULL));
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: method_exists(): Passing null to parameter #2 ($method) of type string is deprecated in /in/1O0Rh on line 9 bool(false)
Output for 5.4.1 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.3.32 - 7.3.33, 8.0.0 - 8.0.30
bool(false)
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; Foo has a deprecated constructor in /in/1O0Rh on line 3 bool(false)
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186.03 ms | 403 KiB | 226 Q