array_work與array_map

 array_work: 

class Study
{

    /**
     * array_work
     */
    function arr_work($val, $key)
    {
       echo "<p style='color:$val'>$key: I'm $val</p>";
    }


    function work()
    {
        $num = array(
            'a' => 'green',
            'b' => 'deepskyblue',
            'c' => 'blue',
            'd' => 'red',
        );
        array_walk($num, array($this, 'arr_work'));
    }

    //output

    a: I'm green

    b: I'm deepskyblue

    c: I'm blue

    d: I'm red

}

 array_map:

class Study
{

    /**
     * array_map
     */
    function arr_map($x)
    {
       return $x*10;
    }


    function map()
    {
        $num = array(1,2,3,4,5);
        $change = array_map(array($this, 'arr_map'),$num);
        print_r($change);
    }

    //output

    Array
    (
        [0] => 10
        [1] => 20
        [2] => 30
        [3] => 40
        [4] => 50
    )
}