3v4l.org

run code in 300+ PHP versions simultaneously
<?php class MyClass { const CONSTANT = 'constant value'; function showConstant() { echo self::CONSTANT . "\n"; } } echo MyClass::CONSTANT . "\n"; $classname = "MyClass"; echo $classname::CONSTANT . "\n"; // As of PHP 5.3.0 $class = new MyClass(); $class->showConstant(); echo $class::CONSTANT."\n"; // As of PHP 5.3.0 ?>
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
constant value constant value constant value constant value
preferences:
182.71 ms | 404 KiB | 225 Q