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<?php class Test { public function foo($var) { $static = &$var; return $static; } public function __destruct() { return 'die'; } } $test = new Test; $test->foo(); $var1 = call_user_func(array($test, 'foo')); $var2 = call_user_func(array(&$test, 'foo')); var_dump($var1, $var2);
Output for 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, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught ArgumentCountError: Too few arguments to function Test::foo(), 0 passed in /in/Xf4me on line 17 and exactly 1 expected in /in/Xf4me:5 Stack trace: #0 /in/Xf4me(17): Test->foo() #1 {main} thrown in /in/Xf4me on line 5
Process exited with code 255.
Output for 7.0.0 - 7.0.20
Warning: Missing argument 1 for Test::foo(), called in /in/Xf4me on line 17 and defined in /in/Xf4me on line 5 Warning: Missing argument 1 for Test::foo(), called in /in/Xf4me on line 19 and defined in /in/Xf4me on line 5 Warning: Missing argument 1 for Test::foo(), called in /in/Xf4me on line 21 and defined in /in/Xf4me on line 5 NULL NULL
Output for 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
Warning: Missing argument 1 for Test::foo(), called in /in/Xf4me on line 17 and defined in /in/Xf4me on line 5 Warning: Missing argument 1 for Test::foo() in /in/Xf4me on line 5 Warning: Missing argument 1 for Test::foo() in /in/Xf4me on line 5 NULL NULL
Output for 5.0.0 - 5.0.5
Warning: Missing argument 1 for Test::foo() in /in/Xf4me on line 5 Warning: Missing argument 1 for Test::foo() in /in/Xf4me on line 5 Warning: Missing argument 1 for Test::foo() in /in/Xf4me on line 5 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/Xf4me on line 5
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/Xf4me on line 5
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/Xf4me on line 5
Process exited with code 255.

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