insert ค่า ลง DB ด้วย foreach มันบันทึกหมดทุกค่าเลยครับ

// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect"); 
mysql_select_db("$db_name")or die("cannot select DB");

mysql_query("SET NAMES 'UTF8'");
mysql_query("SET NAMES 'TIS620'");

foreach (($_POST['id']) as $id ){
	foreach (($_POST['tex']) as $tex ){
    mysql_query("INSERT INTO requis_detail (requis_no, equip_asset, quan) " .
                "VALUES ('$requisno', '$id','$tex' )");

}

}