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<?php $test = [ 'k'=> 'john', 'd' => 'doe']; var_dump( array_map(function ($item, $b){ return $item; }, $test) );
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/1VGW0:8 Stack trace: #0 [internal function]: {closure}('john') #1 /in/1VGW0(8): array_map(Object(Closure), Array) #2 {main} thrown in /in/1VGW0 on line 8
Process exited with code 255.

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