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<?php $arr = array( Array('weight' => '317.51474856007','reps' => '10'), Array('weight' => 50,'reps' => 10), Array('reps' => 10), Array('reps' => 10) ); $count = array(); $count = array_map(function($v, $k)use($count){if(array_key_exists($k, $count))$count[$k]++;else $count[$k]=1;}, $arr); print_r($arr);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught ArgumentCountError: Too few arguments to function {closure}(), 1 passed and exactly 2 expected in /in/WBMNB:10 Stack trace: #0 [internal function]: {closure}(Array) #1 /in/WBMNB(10): array_map(Object(Closure), Array) #2 {main} thrown in /in/WBMNB on line 10
Process exited with code 255.

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