เปรียบเทียบความเร็วการใช้งาน Class และ Array

for ($i = 0; $i < 1000; $i++) {
    $z = array();
    for ($j = 0; $j < 1000; $j++) {
        $z['aaa'] = 'aaa';
        $z['bbb'] = 'bbb';
        $z['ccc'] = $z['aaa'].$z['bbb'];
    }
    $arraysOf[] = $z;
}

class StaticClass
{
    public $aaa;
    public $bbb;
    public $ccc;
}
for ($i = 0; $i < 1000; $i++) {
    $z = new StaticClass();
    for ($j = 0; $j < 1000; $j++) {
        $z->aaa = 'aaa';
        $z->bbb = 'bbb';
        $z->ccc = $z->aaa.$z->bbb;
    }
    $arraysOf[] = $z;
}

for ($i = 0; $i < 1000; $i++) {
    $z = new stdClass();
    for ($j = 0; $j < 1000; $j++) {
        $z->aaa = 'aaa';
        $z->bbb = 'bbb';
        $z->ccc = $z->aaa.$z->bbb;
    }
    $arraysOf[] = $z;
}