Save an array to file

Hi i need help to save my game. I've searched so much but i haven't found anything or it could be that im searching for the wrong things Oh well, the problem is i need to save my inventory[] array which store itemIds like inventory[1] is itemid 1 and that means i got it in my inventory. here is the script i'm using, which i also found somewhere around here. I'm quite new to programming and there is alot i don't understand but if you could tell me what i'm doing wrong or how to fix it i would be very glad!. Inventory.things[] is an array copied array of inventory[], i think atleast.. well the last part of the inventory script will be in the end of the post.

 using UnityEngine;
 using System.Collections;
 using System.Text;
 using System.IO;
 using System.Runtime.Serialization.Formatters.Binary;
 using System;
 using System.Runtime.Serialization;
 using System.Reflection;
 
     [Serializable]
 public class SaveData : ISerializable {
     public bool foundGem1 = false;
     public float Hp = 0;
     public float PlayerMoney = 0;
     public static string theTime =  System.DateTime.Now.ToString("hh:mm:ss");
     public static string theDate = System.DateTime.Now.ToString("MM/dd/yyyy");
     public int[] thinglist = new int[100];
     int test ;
 
     // The default constructor. Included for when we call it during Save() and Load()
     public SaveData () {}
     
     // This constructor is called automatically by the parent class, ISerializable
     // We get to custom-implement the serialization process here
     public void timeSave()
     {
         theTime = System.DateTime.Now.ToString("hh:mm:ss"); 
         theDate = System.DateTime.Now.ToString("MM/dd/yyyy");
     }
     public void Incluce ()
     {
         Hp = PlayerHp.curHealth;
         PlayerMoney = Inventory.money;
     
     }
     public SaveData (SerializationInfo info, StreamingContext ctxt)
     {
         // Get the values from info and assign them to the appropriate properties. Make sure to cast each variable.
         // Do this for each var defined in the Values section above
         foundGem1 = (bool)info.GetValue("foundGem1", typeof(bool));
         PlayerHp.curHealth = (float)info.GetValue("Hp", typeof(float)); 
         theTime = (string)info.GetValue ("Time", typeof(string));
         theDate = (string)info.GetValue("Date",typeof(string));
         Inventory.money = (int)info.GetValue("PlayerMoney", typeof(int));
         Inventory.amount = (int)info.GetValue("amount", typeof(int));
         for(int i = -1;i < Inventory.things.Length;i++)
             Inventory.things[i] = (Inventory.things[])(info.GetValue ("things" , typeof(Inventory.things[])));
         Debug.Log(Inventory.things);
         switch (Inventory.amount) 
         {
            default:
             break;
         
 
 
         }
     }
     
     // Required by the ISerializable class to be properly serialized. This is called automatically
     public void GetObjectData (SerializationInfo info, StreamingContext ctxt)
     {
         // Repeat this for each var defined in the Values section
         info.AddValue("foundGem1", (foundGem1));
         info.AddValue("Hp", PlayerHp.curHealth);
         info.AddValue("PlayerMoney", Inventory.money);
         info.AddValue ("Time", theTime);
         info.AddValue ("Date", theDate);
         info.AddValue("amount",Inventory.amount);
 
             info.AddValue  ("things", Inventory.things);
     }
 }
 
 // === This is the class that will be accessed from scripts ===
 public class SaveLoad {
 
 
 
 
 
     public static string currentFilePath ="SaveData.sav"; //SaveData.theDate + " "+ SaveData.theTime + ".sav"; //"SaveData.sav" ; // Edit this for different save files
 
     private string GetUniqueName(string name, string folderPath)
     {
         folderPath = "Game";
         name = "SaveData";
          string validatedName = name;
         int tries = 1;
         while (File.Exists(folderPath + validatedName))
         {
             validatedName = string.Format("{0} [{1}]", name, tries++);
         }
 
         return validatedName;
 //        currentFilePath = validatedName;
     }
     // Call this to write data
     public static void Save () // Overloaded
     {
         Save (currentFilePath);
     }
     public static void Save (string filePath)
     {
         SaveData data = new SaveData ();
         
         Stream stream = File.Open(filePath, FileMode.Create);
         BinaryFormatter bformatter = new BinaryFormatter();
         bformatter.Binder = new VersionDeserializationBinder();
         bformatter.Serialize(stream, data);
         stream.Close();
     }
     
     // Call this to load from a file into "data"
     public static void Load () { Load(currentFilePath); } // Overloaded
     public static void Load (string filePath)
     {
         SaveData data = new SaveData ();
         Stream stream = File.Open(filePath, FileMode.Open);
         BinaryFormatter bformatter = new BinaryFormatter();
         bformatter.Binder = new VersionDeserializationBinder();
         data = (SaveData)bformatter.Deserialize(stream);
         stream.Close();
         
         // Now use "data" to access your Values
     }
     
 }
 
 // === This is required to guarantee a fixed serialization assembly name, which Unity likes to randomize on each compile
 // Do not change this
 public sealed class VersionDeserializationBinder : SerializationBinder
 {
     public override Type BindToType( string assemblyName, string typeName )
     {
         if ( !string.IsNullOrEmpty( assemblyName ) && !string.IsNullOrEmpty( typeName ) )
         {
             Type typeToDeserialize = null;
             
             assemblyName = Assembly.GetExecutingAssembly().FullName;
             
             // The following line of code returns the type.
             typeToDeserialize = Type.GetType( String.Format( "{0}, {1}", typeName, assemblyName ) );
             
             return typeToDeserialize;
         }
         
         return null;
     }
 }
 
 

I know it isnt clean with all the comments and that but i have tried alot of things. Prefs is an earlier save system of the inventory but i want to it this way anyway.

Script 2:

 public static int amount;
     int items = amount;
 
     public static int[] things = new int[100];
 
 
     public void blaa()
     {
         Debug.Log("FOodkfds");
     }
     public void SaveInventory()
     {
 
     /*    foreach(Item item in inventory){
             if(item.itemID == i) return true;
             itemname = item.itemName; */
 
 
         /*for (int i = 0; i >= -1; i--)
                         things [i] = -1; */
 
 
         for (int i = 0; i < inventory.Count; i++) {        // mycket bra ide!!!!!!!!!!!!!!
             if(InventoryContains(i))
                 things[i] = i; 
          
         /*    foreach(Item item in inventory){
                 if(item.itemID == i) 
                 itemname = item.itemName
 
             int test = things[i];
             if (test == inventory[i].itemID)
             {
                 things[i] = test; 
             }  */
         
 
 
             //amount = inventory[i].itemID;
             print (amount + " amount");
             /*            items = inventory[i].itemID;
             print (inventory[i]"); */
         
                 }
         //PlayerPrefs.SetInt ("inventory " + i,inventory[i].itemID);
         PlayerPrefs.SetInt("money",money);
     }
      public    void LoadInventory()
     {
     //    for (int i = 0; i < inventory.Count; i++) { 
                     //    inventory [i] = -1 + i >= 0 ? database.items [amount] : new Item ();    
            int[] inventory = (int[]) things.Clone();//  ? database.items[i] : new Item();
         //    things.CopyTo(inventory, 0);
             
                 //}
         //    inventory[i] =  PlayerPrefs.GetInt("inventory " + i, -1) >= 0 ? database.items[PlayerPrefs.GetInt("inventory " + i)] : new Item();
         print (PlayerHp.curHealth);
         money = PlayerPrefs.GetInt("money" + money); 
 
     }    
 
 
 }
 

All answers are appreciated! :D