3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = new \StdClass; $bar = new \StdClass; $bar->cpm = '100'; $foo->bar = $bar; var_dump(get_object_vars($foo));
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 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 - 8.3.6
array(1) { ["bar"]=> object(stdClass)#2 (1) { ["cpm"]=> string(3) "100" } }
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/aqTDh on line 2 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/aqTDh on line 3 array(1) { ["bar"]=> object(stdClass)#2 (1) { ["cpm"]=> string(3) "100" } }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/aqTDh on line 2 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/aqTDh on line 3 array(1) { ["bar"]=> object(stdClass)(1) { ["cpm"]=> string(3) "100" } }

preferences:
272.22 ms | 402 KiB | 356 Q