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<?php $func = function(array $a, $b){ echo implode(' ', func_get_args()); }; $closure = &$func; $reflection = new ReflectionFunction($closure); $arguments = $reflection->getParameters(); if($arguments && $arguments[0]->isArray()){ echo 'Giving array. Result: '; call_user_func($closure, ['a' => 5, 'b' => 10]); } else { echo 'Giving individuals. Result: '; call_user_func($closure, 5, 10); }
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Method ReflectionParameter::isArray() is deprecated in /in/WGmZZ on line 9 Giving array. Result: Fatal error: Uncaught ArgumentCountError: Too few arguments to function {closure}(), 1 passed in /in/WGmZZ on line 11 and exactly 2 expected in /in/WGmZZ:3 Stack trace: #0 /in/WGmZZ(11): {closure}(Array) #1 {main} thrown in /in/WGmZZ on line 3
Process exited with code 255.

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