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run code in 150+ php & hhvm versions
Bugs & Features
<?php abstract class foo { public function a(){ return FALSE; } public function b(){ var_dump($this->a()); } } class bar extends foo { public function a(){ return TRUE; } } $f = new bar(); $f->b();
based on s30pg
Output for 5.0.0 - 7.1.0
bool(true)
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_CLASS in /in/XXW8u on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_CLASS in /in/XXW8u on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/XXW8u on line 4
Process exited with code 255.