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run code in 300+ PHP versions simultaneously
<?php class a { static function b() { static $c; if(!$c) { $c = get_class($this); } echo $c; } } class b extends a{} class c extends a{} b::b(); c::b();
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 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 - 8.3.7
Fatal error: Uncaught Error: Using $this when not in object context in /in/IeZEi:10 Stack trace: #0 /in/IeZEi(18): a::b() #1 {main} thrown in /in/IeZEi on line 10
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20
Notice: Undefined variable: this in /in/IeZEi on line 10 a Notice: Undefined variable: this in /in/IeZEi on line 10 a

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