3v4l.org

run code in 300+ PHP versions simultaneously
<?php $o = new stdClass(); $o->{0} = 'foo'; $a = (array) $o; var_dump($a); var_dump($a[0]);
Output for 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) { [0]=> string(3) "foo" } string(3) "foo"
Output for 5.5.0 - 5.5.36, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20
array(1) { ["0"]=> string(3) "foo" } Notice: Undefined offset: 0 in /in/gIBBF on line 6 NULL
preferences:
181.87 ms | 402 KiB | 217 Q