String serializer to change between parameters on array to coma separated string on HTML address

stringSerializerForQuery:

/*!
 *\brief Method to serialize arrays
 * This method serialized elements from an array an fill the space with the urlcode for querys
 *\param array an array of nsstrings to be serialized
 *\return NSString* a string with all the elements on the array serialized
*/
+ (NSString*)stringSerializerForQuery:(NSArray*)array{
    
    NSMutableString *returnString;
    
    
    for (NSString* stringOnArray in array) {
        if (!returnString) {
            returnString= [NSMutableString new];
            NSString * newString = [stringOnArray stringByReplacingOccurrencesOfString:@" " withString:@"%20"];
            [returnString appendString:newString];  
        }else{
            NSString * newString = [stringOnArray stringByReplacingOccurrencesOfString:@" " withString:@"%20"];
            [returnString appendFormat:@",%@",newString];
        }
    }
    return returnString;
}