<?php function suma($carry, $item) { $carry += $item; return $carry; } function producto($carry, $item) { $carry *= $item; return $carry; } $a = array(1, 2, 3, 4, 5); $x = array(); var_dump(array_reduce($a, "suma")); // int(15) var_dump(array_reduce($a, "producto", 10)); // int(1200), ya que: 10*1*2*3*4*5 var_dump(array_reduce($x, "suma", "No hay datos a reducir")); // string(22) "No hay datos a reducir" ?>
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