diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5db81c09..759d8279 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,8 +5,11 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
+## [0.1.3] - 2021-11-07
 ### Added
-- Add feture to ```generate::class``` class, property, const and method as string
+- Add feature to ```generate::class``` class, property, const and method as string
+- Add feature to collact array ```Collection::class``` and ```CollectionImmutable::class```
 
 ### Removed
 - Remove ```Router::view```
diff --git a/src/System/Collection/AbstractCollectionImmutable.php b/src/System/Collection/AbstractCollectionImmutable.php
new file mode 100644
index 00000000..478fc257
--- /dev/null
+++ b/src/System/Collection/AbstractCollectionImmutable.php
@@ -0,0 +1,156 @@
+<?php
+
+namespace System\Collection;
+
+abstract class AbstractCollectionImmutable
+{
+  protected array $collection = [];
+
+  public function __construct(array $collection)
+  {
+    foreach ($collection as $key => $item) {
+      $this->set($key, $item);
+    }
+  }
+
+  public function __get($name)
+  {
+    return $this->get($name);
+  }
+
+  public function all(): array
+  {
+    return $this->collection;
+  }
+
+  public function get(string $name, $default = null)
+  {
+    return $this->collection[$name] ?? $default;
+  }
+
+  protected function set(string $name, $value)
+  {
+    $this->collection[$name] = $value;
+    return $this;
+  }
+
+  public function has(string $key)
+  {
+    return array_key_exists($key, $this->collection);
+  }
+
+  public function contain($item)
+  {
+    return in_array($item, $this->collection);
+  }
+
+  public function keys(): array
+  {
+    return array_keys($this->collection);
+  }
+
+  public function items(): array
+  {
+    return array_values($this->collection);
+  }
+
+  public function count(): int
+  {
+    return count($this->collection);
+  }
+
+  public function countBy(callable $condition): int
+  {
+    $count = 0;
+    foreach ($this->collection as $key => $item) {
+      $do_somethink = call_user_func($condition, $item, $key);
+
+      $count += $do_somethink === true ? 1 : 0;
+    }
+
+    return $count;
+  }
+
+  public function each(callable $callable)
+  {
+    if (! is_callable($callable)) {
+      return $this;
+    }
+
+    foreach ($this->collection as $key => $item) {
+      $do_somethink = call_user_func($callable, $item, $key);
+
+      // stop looping if callable returning false
+      if ($do_somethink === false) {
+        break;
+      }
+    }
+
+    return $this;
+  }
+
+  public function dumb()
+  {
+    var_dump($this->collection);
+
+    return $this;
+  }
+
+  public function some(callable $condition): bool
+  {
+    if (! is_callable($condition)) {
+      return $this;
+    }
+
+    foreach ($this->collection as $key => $item) {
+      $call = call_user_func($condition, $item, $key);
+
+      if ($call === true) {
+        return true;
+      }
+    }
+
+    return false;
+  }
+
+  public function every(callable $condition): bool
+  {
+    if (! is_callable($condition)) {
+      return $this;
+    }
+
+    foreach ($this->collection as $key => $item) {
+      $call = call_user_func($condition, $item, $key);
+
+      if ($call === false) {
+        return false;
+      }
+    }
+
+    return true;
+  }
+
+  public function json(): string
+  {
+    return json_encode($this->collection);
+  }
+
+  public function first($default = null)
+  {
+    $key = array_key_first($this->collection) ?? 0;
+    return $this->collection[$key] ?? $default;
+  }
+
+  public function last($default = null)
+  {
+    $key = array_key_last($this->collection);
+    return $this->collection[$key] ?? $default;
+  }
+
+  public function isEmpty(): bool
+  {
+    return empty($this->collection);
+  }
+
+}
+
diff --git a/src/System/Collection/Collection.php b/src/System/Collection/Collection.php
new file mode 100644
index 00000000..ca7853ef
--- /dev/null
+++ b/src/System/Collection/Collection.php
@@ -0,0 +1,161 @@
+<?php
+
+namespace System\Collection;
+
+class Collection extends AbstractCollectionImmutable
+{
+
+  public function __set($name, $value)
+  {
+    return $this->set($name, $value);
+  }
+
+  public function clear()
+  {
+    $this->collection = [];
+    return $this;
+  }
+
+  public function add(array $params)
+  {
+    foreach ($params as $key => $item) {
+      $this->set($key, $item);
+    }
+    return $this;
+  }
+
+  public function remove(string $name)
+  {
+    if ($this->has($name)) {
+      unset($this->collection[$name]);
+    }
+
+    return $this;
+  }
+
+  public function set(string $name, $value)
+  {
+    parent::set($name, $value);
+
+    return $this;
+  }
+
+  public function replace(array $new_collection)
+  {
+    $this->collection = [];
+    foreach ($new_collection as $key => $item) {
+      $this->set($key, $item);
+    }
+
+    return $this;
+  }
+
+  public function map(callable $callable)
+  {
+    if (! is_callable($callable)) {
+      return $this;
+    }
+
+    $new_collection = [];
+    foreach ($this->collection as $key => $item) {
+      $new_collection[$key] = call_user_func($callable, $item, $key);
+    }
+
+    $this->replace($new_collection);
+
+    return $this;
+  }
+
+  public function filter(callable $condition_true)
+  {
+    if (! is_callable($condition_true)) {
+      return $this;
+    }
+
+    $new_collection = [];
+    foreach ($this->collection as $key => $item) {
+      $call = call_user_func($condition_true, $item, $key);
+      $condition = is_bool($call) ? $call : false;
+
+      if ($condition === true) {
+        $new_collection[$key] = $item;
+      }
+    }
+
+    $this->replace($new_collection);
+
+    return $this;
+  }
+
+  public function reject(callable $condition_true)
+  {
+    if (! is_callable($condition_true)) {
+      return $this;
+    }
+
+    $new_collection = [];
+    foreach ($this->collection as $key => $item) {
+      $call = call_user_func($condition_true, $item, $key);
+      $condition = is_bool($call) ? $call : false;
+
+      if ($condition === false) {
+        $new_collection[$key] = $item;
+      }
+    }
+
+    $this->replace($new_collection);
+
+    return $this;
+  }
+
+  public function reverse()
+  {
+    return $this->replace(array_reverse($this->collection));
+  }
+
+  public function sort()
+  {
+    asort($this->collection);
+
+    return $this;
+  }
+
+  public function sortDesc()
+  {
+    arsort($this->collection);
+
+    return $this;
+  }
+
+  public function sortBy(callable $callable)
+  {
+    uasort($this->collection, $callable);
+
+    return $this;
+  }
+
+  public function sortByDecs(callable $callable)
+  {
+    return $this->sortBy($callable)->reverse();
+  }
+
+  public function sortKey()
+  {
+    ksort($this->collection);
+
+    return $this;
+  }
+
+  public function sortKeyDesc()
+  {
+    krsort($this->collection);
+
+    return $this;
+  }
+
+  public function clone()
+  {
+    return new Collection($this->collection);
+  }
+
+}
diff --git a/src/System/Collection/CollectionImmutable.php b/src/System/Collection/CollectionImmutable.php
new file mode 100644
index 00000000..ff80117c
--- /dev/null
+++ b/src/System/Collection/CollectionImmutable.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace System\Collection;
+
+class CollectionImmutable extends AbstractCollectionImmutable
+{
+  // same as perent
+}
+
diff --git a/tests/Colllection/BasicCollectionTest.php b/tests/Colllection/BasicCollectionTest.php
new file mode 100644
index 00000000..d8770935
--- /dev/null
+++ b/tests/Colllection/BasicCollectionTest.php
@@ -0,0 +1,318 @@
+<?php
+
+use PHPUnit\Framework\TestCase;
+use System\Collection\Collection;
+use System\Collection\CollectionImmutable;
+
+class BasicCollectionTest extends TestCase
+{
+  /** @test */
+  public function it_collection_functional_worK_properly(): void
+  {
+    $original = [
+      'buah_1' => 'mangga',
+      'buah_2' => 'jeruk',
+      'buah_3' => 'apel',
+      'buah_4' => 'melon',
+      'buah_5' => 'rambutan',
+      'buah_6' => 'peer',
+    ];
+    $test = new Collection($original);
+
+    // getter
+    $this->assertEquals($test->buah_1, 'mangga', 'add new item colection using __set');
+    $this->assertEquals($test->get('buah_1'), 'mangga', 'add new item collection using set()');
+
+    // add new item
+    $test->set('buah_7', 'kelengkeng');
+    $test->buah_8 = 'cherry';
+    $this->assertEquals($test->buah_8, 'cherry', 'get item colection using __get');
+    $this->assertEquals($test->get('buah_7'), 'kelengkeng', 'get item colection using get()');
+
+    // raname item
+    $test->set('buah_7', 'durian');
+    $test->buah_8 = 'nanas';
+    $this->assertEquals($test->buah_8, 'nanas', 'replece exis item colection using __get');
+    $this->assertEquals($test->get('buah_7'), 'durian', 'replece exis item colection using get()');
+
+    // cek array key
+    $this->assertTrue($test->has('buah_1'), 'collection have item with key');
+
+    // cek contain
+    $this->assertTrue($test->contain('mangga'), 'collection have item');
+
+    // remove item
+    $test->remove('buah_2');
+    $this->assertFalse($test->has('buah_2'), 'remove some item using key');
+
+    // reset to origin
+    $test->replace($original);
+
+    // count
+    $this->assertEquals($test->count(), 6, 'count item in collection');
+
+    // count by
+    $countBy = $test->countBy(function($item) {
+      // find letter contain 'e' letter
+      return strpos($item, "e") !== false
+        ? true
+        : false;
+    });
+    $this->assertEquals(4, $countBy, 'count item in collection with some condition');
+
+    // first and last item cek
+    $this->assertEquals("mangga", $test->first('bukan buah'), 'get first item in collection');
+    $this->assertEquals("peer", $test->last('bukan buah'), 'get last item in collection');
+
+    // test clear and empty cek
+    $this->assertFalse($test->isEmpty());
+    $test->clear();
+    $this->assertTrue($test->isEmpty(), 'cek collection empty');
+    // same with origin
+    $test->replace($original);
+    $this->assertEquals($test->all(), $original, 'replace axis collection with new data');
+
+    // test array keys and vules
+    $keys = array_keys($original);
+    $items = array_values($original);
+    $this->assertEquals($keys, $test->keys(), 'get all key in collection');
+    $this->assertEquals($items, $test->items(), 'get all item value in collection');
+
+    // each funtion
+    $test->each(function($item, $key) use ($original) {
+      $this->assertTrue(in_array($item, $original), 'test each with value');
+      $this->assertTrue(array_key_exists($key, $original), 'test each with key');
+    });
+
+    // map funtion
+    $test->map(fn($item) => ucfirst($item));
+    $copy_origin = array_map(fn($item) => ucfirst($item), $original);
+    $this->assertEquals($test->all(), $copy_origin, 'replace some/all item using map');
+    $test->replace($original);
+
+    // filter funtion
+    $test->filter(function($item) {
+      // find letter contain 'e' letter
+      return strpos($item, "e") !== false
+        ? true
+        : false;
+    });
+    $copy_origin = array_filter($original, function($item) {
+      // find letter contain 'e' letter
+      return strpos($item, "e") !== false
+        ? true
+        : false;
+    });
+    $this->assertEquals($test->all(), $copy_origin, 'filter item in collection');
+    $test->replace($original);
+
+    // test the collection have item with e letter
+    $some = $test->some(function($item) {
+      // find letter contain 'e' letter
+      return strpos($item, "e") !== false
+        ? true
+        : false;
+    });
+    $this->assertTrue($some, 'test the collection have item with "e" letter');
+
+    // test the collection every item dont have 'x' letter
+    $every = $test->every(function($item) {
+      // find letter contain 'x' letter
+      return strpos($item, "x") === false
+        ? true
+        : false;
+    });
+    $this->assertTrue($every, 'collection every item dont have "x" letter');
+
+    // json output
+    $json = json_encode($original);
+    $this->assertJsonStringEqualsJsonString($test->json(), $json, "collection convert to json string");
+
+    // collection reverse
+    $copy_origin = $original;
+    $this->assertEquals(
+      $test->reverse()->all(),
+      array_reverse($copy_origin),
+      "test reverse collection"
+    );
+    $test->replace($original);
+
+    // sort collection
+    // sort asc
+    $this->assertEquals(
+      $test->sort()->first(),
+      "apel",
+      "testing sort asc collection"
+    );
+    // sort desc
+    $this->assertEquals(
+      $test->sortDesc()->first(),
+      "rambutan",
+      "testing sort desc collection"
+    );
+    // sort using collback
+    $test->sortBy(function($a, $b) {
+      if ($a == $b) {
+          return 0;
+      }
+      return ($a < $b) ? -1 : 1;
+    });
+    $this->assertEquals(
+      $test->first(),
+      "apel",
+      "sort using user define asceding"
+    );
+    $test->sortByDecs(function($a, $b) {
+      if ($a == $b) {
+          return 0;
+      }
+      return ($a < $b) ? -1 : 1;
+    });
+    $this->assertEquals(
+      $test->first(),
+      "rambutan",
+      "sort using user define decsending"
+    );
+
+    // sort colection by key
+    $this->assertEquals(
+      $test->sortKey()->first(),
+      "mangga",
+      "sort collection asc with key"
+    );
+    $this->assertEquals(
+      $test->sortKeyDesc()->first(),
+      "peer",
+      "sort collection desc with key"
+    );
+    $test->replace($original);
+
+    // clone collection
+    $this->assertEquals(
+      $test->clone()->reverse()->first(),
+      $test->last(),
+      "clone collection without interupt original"
+    );
+
+    // reject
+    $copy_origin = $original;
+    unset($copy_origin['buah_2']);
+    $this->assertEquals(
+      $test->reject(fn($item) => $item == "jeruk")->all(),
+      $copy_origin,
+      'its like filter but the oposite'
+    );
+  }
+
+  /** @test */
+  public function it_collection_imutable_funtional_worK_properly(): void
+  {
+    $original = [
+      'buah_1' => 'mangga',
+      'buah_2' => 'jeruk',
+      'buah_3' => 'apel',
+      'buah_4' => 'melon',
+      'buah_5' => 'rambutan',
+      'buah_6' => 'peer',
+    ];
+    $test = new CollectionImmutable($original);
+
+    // getter
+    $this->assertEquals($test->buah_1, 'mangga', 'add new item colection using __set');
+    $this->assertEquals($test->get('buah_1'), 'mangga', 'add new item collection using set()');
+
+    // cek array key
+    $this->assertTrue($test->has('buah_1'), 'collection have item with key');
+
+    // cek contain
+    $this->assertTrue($test->contain('mangga'), 'collection have item');
+
+    // count
+    $this->assertEquals($test->count(), 6, 'count item in collection');
+
+    // count by
+    $countBy = $test->countBy(function($item) {
+      // find letter contain 'e' letter
+      return strpos($item, "e") !== false
+        ? true
+        : false;
+    });
+    $this->assertEquals(4, $countBy, 'count item in collection with some condition');
+
+    // first and last item cek
+    $this->assertEquals("mangga", $test->first('bukan buah'), 'get first item in collection');
+    $this->assertEquals("peer", $test->last('bukan buah'), 'get last item in collection');
+
+    // test array keys and vules
+    $keys = array_keys($original);
+    $items = array_values($original);
+    $this->assertEquals($keys, $test->keys(), 'get all key in collection');
+    $this->assertEquals($items, $test->items(), 'get all item value in collection');
+
+    // each funtion
+    $test->each(function($item, $key) use ($original) {
+      $this->assertTrue(in_array($item, $original), 'test each with value');
+      $this->assertTrue(array_key_exists($key, $original), 'test each with key');
+    });
+
+    // test the collection have item with e letter
+    $some = $test->some(function($item) {
+      // find letter contain 'e' letter
+      return strpos($item, "e") !== false
+        ? true
+        : false;
+    });
+    $this->assertTrue($some, 'test the collection have item with "e" letter');
+
+    // test the collection every item dont have 'x' letter
+    $every = $test->every(function($item) {
+      // find letter contain 'x' letter
+      return strpos($item, "x") === false
+        ? true
+        : false;
+    });
+    $this->assertTrue($every, 'collection every item dont have "x" letter');
+
+    // json output
+    $json = json_encode($original);
+    $this->assertJsonStringEqualsJsonString($test->json(), $json, "collection convert to json string");
+
+  }
+
+  /** @test */
+  public function it_collection_chain_work_great(): void
+  {
+    $origin = [0, 1, 2, 3, 4];
+    $collection = new Collection($origin);
+
+    $chain = $collection
+      ->add($origin)
+      ->remove(0)
+      ->set(0, 0)
+      ->clear()
+      ->replace($origin)
+      ->each(fn($el) => in_array($el, $origin))
+      ->map(fn($el) => $el + 100 - (2 * 50)) // equal +0
+      ->filter(fn($el) => $el > -1)
+      ->sort()
+      ->sortDesc()
+      ->sortKey()
+      ->sortKeyDesc()
+      ->sortBy(function($a, $b) {
+        if ($a == $b) {
+          return 0;
+        }
+        return ($a < $b) ? -1 : 1;
+      })
+      ->sortByDecs(function($a, $b) {
+        if ($b == $a) {
+          return 0;
+        }
+        return ($b < $a) ? -1 : 1;
+      })
+      ->all()
+    ;
+    $this->assertEquals($chain, $origin, "all collection with chain is wotk");
+  }
+
+}