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run code in 300+ PHP versions simultaneously
<?php class Foo { public $prop = 0; public function callBar() { $this->prop = 100; var_dump($this); $b = new Bar(); $b->trace(); } } class Bar { public function trace() { $bt = debug_backtrace(); var_dump($bt[1]["object"]); } } $f = new Foo(); $f->callBar();
Output for 7.1.25 - 7.1.31, 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
object(Foo)#1 (1) { ["prop"]=> int(100) } object(Foo)#1 (1) { ["prop"]=> int(100) }
preferences:
152.16 ms | 403 KiB | 172 Q