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>function a($a, $b) {
>$temp = $a;
>$a = $b;
>$b = $temp;
>}
>a(1,3);
>echo($a."--".$b);
>?>
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function ¾È¿¡¼­ Á¤ÀÇ µÈ º¯¼ö´Â ¹Û¿¡¼­ Àû¿ëµÇÁö ¾Ê½À´Ï´Ù.
ÇÔ¼ö ¹Û¿¡¼­µµ µ¿ÀÏÇÏ°Ô Àû¿ëÇÒ·Á¸é
ÇÔ¼ö ³»¿¡¼­ º¯¼ö¸¦ global ·Î Á¤ÀÇÇØ ÁÖ¸é µË´Ï´Ù.
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function a($a, $b) {

global $temp,$a,$b;

$temp = $a;
$a = $b;
$b = $temp;
}
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