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<?php class Foo { function dyn(&$bing) { echo $bing . "\n"; $bing++; } static function sta(&$bing) { echo $bing . "\n"; $bing++; } } ////// direct call $a = 1; $cb = [new Foo, "dyn"]; $cb($a); // Fatal error //$cb = 'Foo::sta'; //$cb($a); $cb = ['Foo', 'sta']; $cb($a); echo $a; ////// call_user_func $a = 1; $cb = [new Foo, "dyn"]; call_user_func($cb, $a); $cb = 'Foo::sta'; call_user_func($cb, $a); $cb = ['Foo', 'sta']; call_user_func($cb, $a); echo $a; ////// call_user_func_array $a = 1; $cb = [new Foo, "dyn"]; call_user_func_array($cb, array(&$a)); $cb = 'Foo::sta'; call_user_func_array($cb, array(&$a)); $cb = ['Foo', 'sta']; call_user_func_array($cb, array(&$a)); echo $a;
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
1 2 3 Warning: Foo::dyn(): Argument #1 ($bing) must be passed by reference, value given in /in/GaKNg on line 36 1 Warning: Foo::sta(): Argument #1 ($bing) must be passed by reference, value given in /in/GaKNg on line 39 1 Warning: Foo::sta(): Argument #1 ($bing) must be passed by reference, value given in /in/GaKNg on line 42 1 11 2 3 4
Output for 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
1 2 3 Warning: Parameter 1 to Foo::dyn() expected to be a reference, value given in /in/GaKNg on line 36 1 Warning: Parameter 1 to Foo::sta() expected to be a reference, value given in /in/GaKNg on line 39 1 Warning: Parameter 1 to Foo::sta() expected to be a reference, value given in /in/GaKNg on line 42 1 11 2 3 4
Output for 7.0.0 - 7.0.20
1 2 31 2 3 41 2 3 4
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.36, 5.6.0 - 5.6.28
1 2 3 Warning: Parameter 1 to Foo::dyn() expected to be a reference, value given in /in/GaKNg on line 36 Warning: Parameter 1 to Foo::sta() expected to be a reference, value given in /in/GaKNg on line 39 Warning: Parameter 1 to Foo::sta() expected to be a reference, value given in /in/GaKNg on line 42 11 2 3 4
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/GaKNg on line 19
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/GaKNg on line 19
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STATIC, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/GaKNg on line 9
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_STATIC, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/GaKNg on line 9
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/GaKNg on line 9
Process exited with code 255.
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