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<?php function bind($cb) { $bound_args = func_get_args(); array_shift($bound_args); $bound_exec = function () use ($bound_args, $cb) { $args = $bound_args + func_get_args(); var_dump($args); call_user_func_array($cb, $args); }; return $bound_exec; } $fn = bind(function ($a, $b) { return $a . $b; }, 'hello '); echo $fn('world');
Output for git.master, git.master_jit, rfc.property-hooks
array(1) { [0]=> string(6) "hello " } Fatal error: Uncaught ArgumentCountError: Too few arguments to function {closure}(), 1 passed in /in/CUU6u on line 9 and exactly 2 expected in /in/CUU6u:13 Stack trace: #0 /in/CUU6u(9): {closure}('hello ') #1 /in/CUU6u(14): {closure}('world') #2 {main} thrown in /in/CUU6u on line 13
Process exited with code 255.

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