Fix #43: Deserialize the key to string properly.

Author: StringEpsilon

PhpSerializerNET.Test/Serialize/ObjectSerialization.cs

@@ -23,6 +23,16 @@ public void SerializesToStdClass() {
 		);
 	}
 
+	[Fact]
+	public void HandlesIntegerKeys() {
+		// https://github.com/StringEpsilon/PhpSerializerNET/issues/43
+		var result = (PhpObjectDictionary)PhpSerialization.Deserialize(
+			"""O:3:"foo":1:{i:0;s:7:"QG3GHPX";}""",
+			new() { EnableTypeLookup = false }
+		);
+		Assert.Equal("QG3GHPX", result["0"]);
+	}
+
 	[Fact]
 	public void SerializesToSpecificClass() {
 		var testObject = new NamedClass() {

PhpSerializerNET/Deserialization/PhpDeserializer.cs

@@ -297,7 +297,7 @@ private object MakeClass(in PhpToken token) {
 				var result = new PhpObjectDictionary(token.Length, typeName);
 				result.SetClassName(typeName);
 				for (int i = 0; i < token.Length; i++) {
-					result.TryAdd((string)this.Next(), this.Next());
+					result.TryAdd((string)this.Next(typeof(string)), this.Next());
 				}
 
 				return result;