3v4l.org

run code in 300+ PHP versions simultaneously
<?php class MyClass { public static $default_test = 'foo'; public $test; public function __construct() { $this->test = self::$default_test; } public function example() { return $this->test; } } MyClass::$default_test = 'bar'; $test = new MyClass(); echo $test->example(), PHP_EOL; MyClass::$default_test = 'hello'; $test = new MyClass(); echo $test->example();
Output for 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, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
bar hello
preferences:
112.07 ms | 1930 KiB | 4 Q