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run code in 200+ PHP versions simultaneously
<?php class a { function __construct() { } function __invoke() { echo("Invoked\n"); } } $a = new a(); $a(); // Prints: Invoked class b { private $x; function __construct() { $this->x = new a(); ($this->x)(); } } $b = new b();
based on 3Pu60
Output for 7.0.0 - 7.3.3
Invoked Invoked
Output for 5.1.0 - 5.6.40
Parse error: syntax error, unexpected '(' in /in/NGXF2 on line 17
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '(' in /in/NGXF2 on line 17
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/NGXF2 on line 13
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/NGXF2 on line 13
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/NGXF2 on line 13
Process exited with code 255.