3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $var = new stdClass(); $var->{1} = 1; $var->{2} = 2; var_dump($var); $test = json_decode(json_encode($var), true); var_dump($test); var_dump(array_key_exists(2, $test));
based on Nqa4n
Output for 5.2.0 - 7.2.6
object(stdClass)#1 (2) { ["1"]=> int(1) ["2"]=> int(2) } array(2) { [1]=> int(1) [2]=> int(2) } bool(true)
Output for 5.0.0 - 5.1.6
object(stdClass)#1 (2) { ["1"]=> int(1) ["2"]=> int(2) } Fatal error: Call to undefined function json_decode() in /in/4mXX2 on line 7
Process exited with code 255.
Output for 4.3.3 - 4.4.9
Fatal error: Property name must be a string in /in/4mXX2 on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.2

Process exited with code 139.