3v4l.org

run code in 300+ PHP versions simultaneously
<?php class T { public function __construct($v) { $this->v = $v; } public function __toString() { return 'a'; } } $list = [new T(1), new T(2)]; usort($list, function($a, $b) { return strcmp($a, $b); }); // PHP reverses $list but HHVM doesn't touch it print_r($list);
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: Creation of dynamic property T::$v is deprecated in /in/EG0F2 on line 6 Deprecated: Creation of dynamic property T::$v is deprecated in /in/EG0F2 on line 6 Array ( [0] => T Object ( [v] => 1 ) [1] => T Object ( [v] => 2 ) )
Output for 7.0.0 - 7.0.33, 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 - 8.1.28
Array ( [0] => T Object ( [v] => 1 ) [1] => T Object ( [v] => 2 ) )
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Array ( [0] => T Object ( [v] => 2 ) [1] => T Object ( [v] => 1 ) )
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/EG0F2 on line 14
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/EG0F2 on line 14
Process exited with code 255.
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/EG0F2 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/EG0F2 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/EG0F2 on line 4
Process exited with code 255.
preferences:
258.34 ms | 401 KiB | 465 Q