diff --git a/types/php-serialize/index.d.ts b/types/php-serialize/index.d.ts
new file mode 100644
index 0000000000..b4acbe4167
--- /dev/null
+++ b/types/php-serialize/index.d.ts
@@ -0,0 +1,25 @@
+// Type definitions for php-serialize 3.0
+// Project: https://github.com/steelbrain/php-serialize
+// Definitions by: Changhui Lee <https://github.com/blurfx>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 3.7
+
+/// <reference types="node" />
+
+export interface SerializeOptions {
+    /** @default 'utf8' */
+    readonly encoding?: 'utf8' | 'binary';
+}
+
+export interface UnserializeOptions {
+    /** @default true' */
+    readonly strict?: boolean;
+    /** @default 'utf8' */
+    readonly encoding?: 'utf8' | 'binary';
+}
+
+export function isSerialized(givenItem: any, strict?: boolean): boolean;
+
+export function serialize(item: any, scope?: any, givenOptions?: SerializeOptions): string;
+
+export function unserialize(item: string | Buffer, scope?: any, givenOptions?: UnserializeOptions): any;
diff --git a/types/php-serialize/php-serialize-tests.ts b/types/php-serialize/php-serialize-tests.ts
new file mode 100644
index 0000000000..84d81b5305
--- /dev/null
+++ b/types/php-serialize/php-serialize-tests.ts
@@ -0,0 +1,8 @@
+import PhpSerialize = require('php-serialize');
+
+const testObject = {
+  user_id: 399,
+  parent_user_id: 399,
+};
+const serialized = PhpSerialize.serialize(testObject);
+PhpSerialize.unserialize(serialized);
diff --git a/types/php-serialize/tsconfig.json b/types/php-serialize/tsconfig.json
new file mode 100644
index 0000000000..a711f45262
--- /dev/null
+++ b/types/php-serialize/tsconfig.json
@@ -0,0 +1,24 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "target": "es6",
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "php-serialize-tests.ts"
+    ]
+}
diff --git a/types/php-serialize/tslint.json b/types/php-serialize/tslint.json
new file mode 100644
index 0000000000..f93cf8562a
--- /dev/null
+++ b/types/php-serialize/tslint.json
@@ -0,0 +1,3 @@
+{
+    "extends": "dtslint/dt.json"
+}