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<?php function curry(\Closure $f) { $rf = new \ReflectionFunction($f); $arity = $rf->getNumberOfParameters(); function acc($f, $arity, $args=[]) { return function(...$acc) use($f, $arity, $args) { $acc = array_merge($args, $acc); return (count($acc) >= $arity) ? $f(...$acc) : acc($f, $arity, $acc); }; }; return acc($f, $arity); }; // ================================================== $sum_func = function($a,$b,$c) { return $a+$b+$c; }; $cur = curry($sum_func); var_dump($cur(1,2,3)); var_dump($cur(1,2)(3)); var_dump($cur(1)(2)(3)); var_dump($cur()(1)()(2)()(3)); var_dump($cur()()()()(1)()(2)()(3,4,5));
Output for git.master, git.master_jit, rfc.property-hooks
int(6) int(6) int(6) int(6) int(6)

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