3v4l.org

run code in 300+ PHP versions simultaneously
<?php class a { public function getb () { return b(); } } class b extends a { public function p () { echo 123; } } $a = new a; $b = $a->getb(); $b->p();
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 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 - 8.3.7
Fatal error: Uncaught Error: Call to undefined function b() in /in/FHhKt:4 Stack trace: #0 /in/FHhKt(15): a->getb() #1 {main} thrown in /in/FHhKt on line 4
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Fatal error: Call to undefined function b() in /in/FHhKt on line 4
Process exited with code 255.
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165.51 ms | 405 KiB | 199 Q