是否可以在PHP中对数字多维数组进行排序？

Question

<?php
$multi = array(
            9,10
            array(5,4),
            array(6,7),
            array(3,2),
            array(8,1)
);

echo "<center>values in Array</center>";

for ($row = 0; $row < 4; $row++) {
    for ($col = 0; $col < 2; $col++) {        
         echo "<center>".$multi[$row][$col]."</center>"."<br>";
    }

}
?>