function - Failed Using array_merge inside of PHP class - 


class test {   public $data = array();    public function adddata($data = array())   {     array_merge($data, $this->data);     return $this;   }    public function showdata()   {     print_r($this->data);   } } $test = new test; $test->adddata(array("halo", "zaki"))->showdata();

i tried merging 2 array, doesn't work, maybe can explain me?

you forgot assign resulting array member variable $data. should be,

$this->data = array_merge($data, $this->data);

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