3v4l.org

run code in 300+ PHP versions simultaneously
<?php $o = (object)array(42); var_dump(array_key_exists(0, $o), property_exists($o,'0'), isset($o->{0})); var_dump($o->{0}); $o->{0} = 37; var_dump(array_key_exists(0, $o), property_exists($o,'0'), isset($o->{0}));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Fatal error: Uncaught TypeError: array_key_exists(): Argument #2 ($array) must be of type array, stdClass given in /in/QiYTv:5 Stack trace: #0 {main} thrown in /in/QiYTv on line 5
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Fatal error: Uncaught TypeError: array_key_exists(): Argument #2 ($array) must be of type array, stdClass given in /in/QiYTv:5 Stack trace: #0 {main} thrown in /in/QiYTv on line 5
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Deprecated: array_key_exists(): Using array_key_exists() on objects is deprecated. Use isset() or property_exists() instead in /in/QiYTv on line 5 bool(false) bool(true) bool(true) int(42) Deprecated: array_key_exists(): Using array_key_exists() on objects is deprecated. Use isset() or property_exists() instead in /in/QiYTv on line 11 bool(false) bool(true) bool(true)
Output for 7.2.0 - 7.2.33, 7.3.16 - 7.3.33
bool(false) bool(true) bool(true) int(42) bool(false) bool(true) bool(true)
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20
bool(true) bool(false) bool(false) Notice: Undefined property: stdClass::$0 in /in/QiYTv on line 7 NULL bool(true) bool(true) bool(true)

preferences:
166.51 ms | 402 KiB | 182 Q