salam bung Ellyx....

membuat nomor acak dimana no yang ditampilkan tidak ada dalam db..

[code=php]
<?php
$sql = mysql_query("SELECT no_ujian FROM formulir");
$array = array();
while($row = mysql_fetch_assoc($sql))
{
$array!= $row ;
}
while(True)
{
$rand = rand(0, 999);
if(! in_array($rand))
{
echo "<td><input type=\"text\" name=\"nomor\" size=\"40\" value='$rand'></td></tr>";
}
braek;
}

?>
[/php]

function acak(){
	$rand = mt_rand(0,999);
	$sql = "select * from no_ujian from formulir where no_ujian='$rand'";
	$hs = mysql_query($sql);
	if(mysql_num_rows($hs) > 0){
		return acak();
	}
	return $rand;
}