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run code in 300+ PHP versions simultaneously
<?php class Foo { public function bar() { echo 'here'; } } class Bel { public function bar() { echo 'there'; } } class_alias('Foo', 'Baz'); $b = new Baz; $b->bar(); class_alias('Bel', 'Baz'); $c = new Bel; $c->bar();
Output for 7.0.0 - 7.0.33, 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
here Warning: Cannot declare class Baz, because the name is already in use in /in/iD7YG on line 18 there
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
here Warning: Cannot redeclare class Baz in /in/iD7YG on line 18 there
preferences:
225.86 ms | 402 KiB | 341 Q