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; <?php $arrays = array( 0 => array( 0 => 'one', 1 => 'two', 2 => 'three' ), 1 => array( 0 => 'four', 1 => 'five', 2 => 'six' ), 2 => array( 0 => 'seven', 1 => 'eight', 2 => 'nine' ) ); print_r(array_reduce($arrays, function($carry, $item) { print_r($item); return $carry; }), []);
Output for git.master, git.master_jit, rfc.property-hooks
; Array ( [0] => one [1] => two [2] => three ) Array ( [0] => four [1] => five [2] => six ) Array ( [0] => seven [1] => eight [2] => nine ) Fatal error: Uncaught TypeError: print_r(): Argument #2 ($return) must be of type bool, array given in /in/aNIIM:9 Stack trace: #0 /in/aNIIM(9): print_r(NULL, Array) #1 {main} thrown in /in/aNIIM on line 9
Process exited with code 255.

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