3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Thing { private $x; public function __construct($x) { $this->$x = $x; } public function get() { return $this->x; } public function set($x) { $this->$x = $x; } } function f(Thing $t) { $t->set(42); } $t = new Thing(1); var_dump($t->get()); f($t); var_dump($t->get());
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Deprecated: Creation of dynamic property Thing::$1 is deprecated in /in/BF6IW on line 6 NULL Deprecated: Creation of dynamic property Thing::$42 is deprecated in /in/BF6IW on line 14 NULL
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 Deprecated: Creation of dynamic property Thing::$1 is deprecated in /in/BF6IW on line 6 NULL Deprecated: Creation of dynamic property Thing::$42 is deprecated in /in/BF6IW on line 14 NULL
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 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 - 8.1.27
NULL NULL
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/BF6IW on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/BF6IW on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/BF6IW on line 4
Process exited with code 255.

preferences:
254.6 ms | 401 KiB | 357 Q