Class Static dan Compact PHP

 <?php

class database {

  public static function user($array) {

    array_walk($array, function($name){

        echo "Hello + ".$name ."<br>";

    });

  }

}

$array = array("Muhammad","Rifqi");

$row = database::user($array);

echo"<pre>";

print_r($row);

?>

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<?php

$city  = array("San Francisco","aaaa","bbb");

$state = array("San Francisco","aaaa","bbb");

$event = array("San Francisco","aaaa","bbb");

$location_vars = array("city", "state",'event');

$res = compact($location_vars);

echo "<pre>";

print_r($res);

?>