這是錯誤緻命錯誤：調用未定義的函數assign(
這是代碼，你可以看到我顯然已經定義了函數，為什麼它不工作
class shades {
function create($name, $shades, $slug, $shortDesc, $longDesc, $position){
$name = sanitize_paranoid_string($name);
$slug = slug($name);
$shortDesc = sanitize_sql_string($shortDesc);
$longDesc = sanitize_sql_string($longDesc);
$query = mysql_query("INSERT INTO products (type, name, slug, shortDesc, htmlDesc, position)VALUES('shades','$name','$slug','$shortDesc','$longDesc','$position')")or die(mysql_error());
$ID = mysql_insert_id();
assign($shades, $ID);
if($query) {return true;}
else {return false;};
}
function delassign($toID){
mysql_query("DELETE FROM assign WHERE type='shades' AND toID='$toID'")or die(mysql_error());
}
function assign($shades, $toID)
{
foreach($shades as $shade)
{
$result = mysql_query("INSERT INTO assign(type, typeID, toID)VALUES('shades','$shade','$toID')")or die(mysql_error());
if($result){echo "Added!";}
else{echo"Not Added!";}
};
}
}