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<?php function g($txt = '') { $goal = 'g'; $_g = function($str = '') use ($goal) { if ($str) { return $goal . $str; } $goal .= 'o'; return $_g; }; return $_g($str); } echo g('al');
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
Warning: Undefined variable $str in /in/dV5jR on line 13 Warning: Undefined variable $_g in /in/dV5jR on line 10
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 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: str in /in/dV5jR on line 13 Notice: Undefined variable: _g in /in/dV5jR on line 10
Output for 7.3.32 - 7.3.33
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/dV5jR 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, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/dV5jR on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/dV5jR on line 5
Process exited with code 255.

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