3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(-1); class Example { function pub(){} } $callables = array( array('Example','pub'), 'Example::pub', ); foreach ($callables as $c) { var_dump(is_callable($c)); }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
bool(false) bool(false)
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
bool(true) bool(true)
Output for 5.1.2 - 5.1.6, 5.2.0 - 5.2.17
Strict Standards: Non-static method Example::pub() cannot be called statically in /in/39CAn on line 15 bool(true) bool(false)
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.1
bool(true) bool(false)

preferences:
258.79 ms | 402 KiB | 460 Q