3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A {} class B extends \stdClass {} $a = new A(); $a->foo = 'bar'; $b = new B(); $b->foo = 'bar';
Output for 8.2.3 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
Deprecated: Creation of dynamic property A::$foo is deprecated in /in/qalMV on line 9
Output for 8.1.23 - 8.1.34

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70.32 ms | 855 KiB | 4 Q