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<?php function g($name, array $vars) { if (!array_key_exists($vars, $name)) { trigger_error('ss', E_USER_NOTICE); } return $name; } function f(&$v) { $v = 5; } $foo = null; $name = 'foo'; call_user_func_array('f', array(&${g($name, get_defined_vars())})); var_dump($foo);
Output for 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 TypeError: array_key_exists(): Argument #2 ($array) must be of type array, string given in /in/Ff9r1:3 Stack trace: #0 /in/Ff9r1(16): g('foo', Array) #1 {main} thrown in /in/Ff9r1 on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 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
Warning: array_key_exists() expects parameter 2 to be array, string given in /in/Ff9r1 on line 3 Notice: ss in /in/Ff9r1 on line 4 int(5)
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Warning: array_key_exists(): The second argument should be either an array or an object in /in/Ff9r1 on line 3 Notice: ss in /in/Ff9r1 on line 4 int(5)
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/Ff9r1 on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_ARRAY, expecting '&' or T_VARIABLE or T_CONST in /in/Ff9r1 on line 2
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_ARRAY, expecting '&' or T_VARIABLE or T_CONST in /in/Ff9r1 on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'&'' or `T_VARIABLE' or `T_CONST' in /in/Ff9r1 on line 2
Process exited with code 255.
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