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<?php $calc = function ($arg = null, $acc = '') use (&$calc) { return $arg === null ? $acc : function ($arg, $acc = '') use (&$calc) { return $calc($arg, $acc . $arg); }; }; $result = $decurrying(1)(3)(3)(8)(); var_dump($result);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Warning: Undefined variable $decurrying in /in/3RPRe on line 9 Fatal error: Uncaught Error: Value of type null is not callable in /in/3RPRe:9 Stack trace: #0 {main} thrown in /in/3RPRe on line 9
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Notice: Undefined variable: decurrying in /in/3RPRe on line 9 Fatal error: Uncaught Error: Function name must be a string in /in/3RPRe:9 Stack trace: #0 {main} thrown in /in/3RPRe on line 9
Process exited with code 255.
Output for 7.3.32 - 7.3.33, 7.4.26
Fatal error: Uncaught Error: Function name must be a string in /in/3RPRe:9 Stack trace: #0 {main} thrown in /in/3RPRe on line 9
Process exited with code 255.

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