Question

How to apply a class method to every element of an array in PHP

Answer 1

class Example {
    private function mul($item) {
        return $item * 2;
    }

    public function test() {
        $array = array(1, 2, 3, 4);
        $newArray = array_map(array($this, 'mul'), $array);
        print_r($newArray);
    }
}

$o = new Example();

$o->test();

 

/*
run:
  
Array ( [0] => 2 [1] => 4 [2] => 6 [3] => 8 ) 
  
*/

 

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