diff --git a/src/StaticStringy.php b/src/StaticStringy.php
index 002bc23..e4a5abc 100644
--- a/src/StaticStringy.php
+++ b/src/StaticStringy.php
@@ -391,7 +391,7 @@ class StaticStringy
      * @param  array  $needles       Substrings to look for
      * @param  bool   $caseSensitive Whether or not to enforce case-sensitivity
      * @param  string $encoding      The character encoding
-     * @return bool   Whether or not $haystack contains $needle
+     * @return bool   Whether or not $haystack contains any $needles
      */
     public static function containsAny($haystack, $needles,
                                        $caseSensitive = true, $encoding = null)
@@ -400,6 +400,24 @@ class StaticStringy
             ->containsAny($needles, $caseSensitive);
     }
 
+    /**
+     * Returns true if the string contains all $needles, false otherwise. By
+     * default, the comparison is case-sensitive, but can be made insensitive
+     * by setting $caseSensitive to false.
+     *
+     * @param  string $haystack      String being checked
+     * @param  array  $needles       Substrings to look for
+     * @param  bool   $caseSensitive Whether or not to enforce case-sensitivity
+     * @param  string $encoding      The character encoding
+     * @return bool   Whether or not $haystack contains all $needles
+     */
+    public static function containsAll($haystack, $needles,
+                                       $caseSensitive = true, $encoding = null)
+    {
+        return Stringy::create($haystack, $encoding)
+            ->containsAll($needles, $caseSensitive);
+    }
+
     /**
      * Surrounds a string with the given substring.
      *
diff --git a/src/Stringy.php b/src/Stringy.php
index dbb1601..4eda112 100644
--- a/src/Stringy.php
+++ b/src/Stringy.php
@@ -786,6 +786,32 @@ class Stringy implements \Countable, \IteratorAggregate, \ArrayAccess
         return false;
     }
 
+    /**
+     * Returns true if the string contains all $needles, false otherwise. By
+     * default the comparison is case-sensitive, but can be made insensitive by
+     * setting $caseSensitive to false.
+     *
+     * @param  array  $needles       Substrings to look for
+     * @param  bool   $caseSensitive Whether or not to enforce case-sensitivity
+     * @return bool   Whether or not $str contains $needle
+     */
+    public function containsAll($needles, $caseSensitive = true)
+    {
+        if (empty($needles)) {
+            return false;
+        }
+
+        $encoding = $this->encoding;
+
+        foreach($needles as $needle) {
+            if (!$this->contains($needle, $caseSensitive)) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
     /**
      * Surrounds $str with the given substring.
      *
diff --git a/tests/CommonTest.php b/tests/CommonTest.php
index 4794514..d392681 100644
--- a/tests/CommonTest.php
+++ b/tests/CommonTest.php
@@ -375,25 +375,25 @@ abstract class CommonTest extends PHPUnit_Framework_TestCase
     public function containsProvider()
     {
         return array(
-            array(true, 'This string contains foo bar', 'foo bar'),
+            array(true, 'Str contains foo bar', 'foo bar'),
             array(true, '12398!@(*%!@# @!%#*&^%',  ' @!%#*&^%'),
             array(true, 'Ο συγγραφέας είπε', 'συγγραφέας', 'UTF-8'),
             array(true, 'å´¥©¨ˆßå˚ ∆∂˙©å∑¥øœ¬', 'å´¥©', true, 'UTF-8'),
             array(true, 'å´¥©¨ˆßå˚ ∆∂˙©å∑¥øœ¬', 'å˚ ∆', true, 'UTF-8'),
             array(true, 'å´¥©¨ˆßå˚ ∆∂˙©å∑¥øœ¬', 'øœ¬', true, 'UTF-8'),
-            array(false, 'This string contains foo bar', 'Foo bar'),
-            array(false, 'This string contains foo bar', 'foobar'),
-            array(false, 'This string contains foo bar', 'foo bar '),
+            array(false, 'Str contains foo bar', 'Foo bar'),
+            array(false, 'Str contains foo bar', 'foobar'),
+            array(false, 'Str contains foo bar', 'foo bar '),
             array(false, 'Ο συγγραφέας είπε', '  συγγραφέας ', true, 'UTF-8'),
             array(false, 'å´¥©¨ˆßå˚ ∆∂˙©å∑¥øœ¬', ' ßå˚', true, 'UTF-8'),
-            array(true, 'This string contains foo bar', 'Foo bar', false),
+            array(true, 'Str contains foo bar', 'Foo bar', false),
             array(true, '12398!@(*%!@# @!%#*&^%',  ' @!%#*&^%', false),
             array(true, 'Ο συγγραφέας είπε', 'ΣΥΓΓΡΑΦΈΑΣ', false, 'UTF-8'),
             array(true, 'å´¥©¨ˆßå˚ ∆∂˙©å∑¥øœ¬', 'Å´¥©', false, 'UTF-8'),
             array(true, 'å´¥©¨ˆßå˚ ∆∂˙©å∑¥øœ¬', 'Å˚ ∆', false, 'UTF-8'),
             array(true, 'å´¥©¨ˆßå˚ ∆∂˙©å∑¥øœ¬', 'ØŒ¬', false, 'UTF-8'),
-            array(false, 'This string contains foo bar', 'foobar', false),
-            array(false, 'This string contains foo bar', 'foo bar ', false),
+            array(false, 'Str contains foo bar', 'foobar', false),
+            array(false, 'Str contains foo bar', 'foo bar ', false),
             array(false, 'Ο συγγραφέας είπε', '  συγγραφέας ', false, 'UTF-8'),
             array(false, 'å´¥©¨ˆßå˚ ∆∂˙©å∑¥øœ¬', ' ßÅ˚', false, 'UTF-8')
         );
@@ -409,27 +409,27 @@ abstract class CommonTest extends PHPUnit_Framework_TestCase
 
         $provider = array(
             // No needles
-            array(false, 'This string contains foo bar', array()),
+            array(false, 'Str contains foo bar', array()),
             // Multiple needles
-            array(true, 'This string contains foo bar', array('foo', 'bar')),
+            array(true, 'Str contains foo bar', array('foo', 'bar')),
             array(true, '12398!@(*%!@# @!%#*&^%', array(' @!%#*', '&^%')),
             array(true, 'Ο συγγραφέας είπε', array('συγγρ', 'αφέας'), 'UTF-8'),
             array(true, 'å´¥©¨ˆßå˚ ∆∂˙©å∑¥øœ¬', array('å´¥', '©'), true, 'UTF-8'),
             array(true, 'å´¥©¨ˆßå˚ ∆∂˙©å∑¥øœ¬', array('å˚ ', '∆'), true, 'UTF-8'),
             array(true, 'å´¥©¨ˆßå˚ ∆∂˙©å∑¥øœ¬', array('øœ', '¬'), true, 'UTF-8'),
-            array(false, 'This string contains foo bar', array('Foo', 'Bar')),
-            array(false, 'This string contains foo bar', array('foobar', 'bar ')),
-            array(false, 'This string contains foo bar', array('foo bar ', '  foo')),
+            array(false, 'Str contains foo bar', array('Foo', 'Bar')),
+            array(false, 'Str contains foo bar', array('foobar', 'bar ')),
+            array(false, 'Str contains foo bar', array('foo bar ', '  foo')),
             array(false, 'Ο συγγραφέας είπε', array('  συγγραφέας ', '  συγγραφ '), true, 'UTF-8'),
             array(false, 'å´¥©¨ˆßå˚ ∆∂˙©å∑¥øœ¬', array(' ßå˚', ' ß '), true, 'UTF-8'),
-            array(true, 'This string contains foo bar', array('Foo bar', 'bar'), false),
+            array(true, 'Str contains foo bar', array('Foo bar', 'bar'), false),
             array(true, '12398!@(*%!@# @!%#*&^%', array(' @!%#*&^%', '*&^%'), false),
             array(true, 'Ο συγγραφέας είπε', array('ΣΥΓΓΡΑΦΈΑΣ', 'ΑΦΈΑ'), false, 'UTF-8'),
             array(true, 'å´¥©¨ˆßå˚ ∆∂˙©å∑¥øœ¬', array('Å´¥©', '¥©'), false, 'UTF-8'),
             array(true, 'å´¥©¨ˆßå˚ ∆∂˙©å∑¥øœ¬', array('Å˚ ∆', ' ∆'), false, 'UTF-8'),
             array(true, 'å´¥©¨ˆßå˚ ∆∂˙©å∑¥øœ¬', array('ØŒ¬', 'Œ'), false, 'UTF-8'),
-            array(false, 'This string contains foo bar', array('foobar', 'none'), false),
-            array(false, 'This string contains foo bar', array('foo bar ', ' ba '), false),
+            array(false, 'Str contains foo bar', array('foobar', 'none'), false),
+            array(false, 'Str contains foo bar', array('foo bar ', ' ba '), false),
             array(false, 'Ο συγγραφέας είπε', array('  συγγραφέας ', ' ραφέ '), false, 'UTF-8'),
             array(false, 'å´¥©¨ˆßå˚ ∆∂˙©å∑¥øœ¬', array(' ßÅ˚', ' Å˚ '), false, 'UTF-8'),
         );
@@ -437,6 +437,43 @@ abstract class CommonTest extends PHPUnit_Framework_TestCase
         return array_merge($singleNeedle, $provider);
     }
 
+    public function containsAllProvider()
+    {
+        // One needle
+        $singleNeedle = array_map(function($array) {
+            $array[2] = array($array[2]);
+            return $array;
+        }, $this->containsProvider());
+
+        $provider = array(
+            // One needle
+            array(false, 'Str contains foo bar', array()),
+            // Multiple needles
+            array(true, 'Str contains foo bar', array('foo', 'bar')),
+            array(true, '12398!@(*%!@# @!%#*&^%', array(' @!%#*', '&^%')),
+            array(true, 'Ο συγγραφέας είπε', array('συγγρ', 'αφέας'), 'UTF-8'),
+            array(true, 'å´¥©¨ˆßå˚ ∆∂˙©å∑¥øœ¬', array('å´¥', '©'), true, 'UTF-8'),
+            array(true, 'å´¥©¨ˆßå˚ ∆∂˙©å∑¥øœ¬', array('å˚ ', '∆'), true, 'UTF-8'),
+            array(true, 'å´¥©¨ˆßå˚ ∆∂˙©å∑¥øœ¬', array('øœ', '¬'), true, 'UTF-8'),
+            array(false, 'Str contains foo bar', array('Foo', 'bar')),
+            array(false, 'Str contains foo bar', array('foobar', 'bar')),
+            array(false, 'Str contains foo bar', array('foo bar ', 'bar')),
+            array(false, 'Ο συγγραφέας είπε', array('  συγγραφέας ', '  συγγραφ '), true, 'UTF-8'),
+            array(false, 'å´¥©¨ˆßå˚ ∆∂˙©å∑¥øœ¬', array(' ßå˚', ' ß '), true, 'UTF-8'),
+            array(true, 'Str contains foo bar', array('Foo bar', 'bar'), false),
+            array(true, '12398!@(*%!@# @!%#*&^%', array(' @!%#*&^%', '*&^%'), false),
+            array(true, 'Ο συγγραφέας είπε', array('ΣΥΓΓΡΑΦΈΑΣ', 'ΑΦΈΑ'), false, 'UTF-8'),
+            array(true, 'å´¥©¨ˆßå˚ ∆∂˙©å∑¥øœ¬', array('Å´¥©', '¥©'), false, 'UTF-8'),
+            array(true, 'å´¥©¨ˆßå˚ ∆∂˙©å∑¥øœ¬', array('Å˚ ∆', ' ∆'), false, 'UTF-8'),
+            array(true, 'å´¥©¨ˆßå˚ ∆∂˙©å∑¥øœ¬', array('ØŒ¬', 'Œ'), false, 'UTF-8'),
+            array(false, 'Str contains foo bar', array('foobar', 'none'), false),
+            array(false, 'Str contains foo bar', array('foo bar ', ' ba'), false),
+            array(false, 'Ο συγγραφέας είπε', array('  συγγραφέας ', ' ραφέ '), false, 'UTF-8'),
+            array(false, 'å´¥©¨ˆßå˚ ∆∂˙©å∑¥øœ¬', array(' ßÅ˚', ' Å˚ '), false, 'UTF-8'),
+        );
+
+        return array_merge($singleNeedle, $provider);
+    }
 
     public function surroundProvider()
     {
diff --git a/tests/StaticStringyTest.php b/tests/StaticStringyTest.php
index 0cc8f46..49c58e7 100644
--- a/tests/StaticStringyTest.php
+++ b/tests/StaticStringyTest.php
@@ -296,6 +296,17 @@ class StaticStringyTestCase extends CommonTest
         $this->assertEquals($expected, $result);
     }
 
+    /**
+     * @dataProvider containsAllProvider()
+     */
+    public function testContainsAll($expected, $haystack, $needles,
+                                    $caseSensitive = true, $encoding = null)
+    {
+        $result = S::containsAll($haystack, $needles, $caseSensitive, $encoding);
+        $this->assertInternalType('boolean', $result);
+        $this->assertEquals($expected, $result);
+    }
+
     /**
      * @dataProvider surroundProvider()
      */
diff --git a/tests/StringyTest.php b/tests/StringyTest.php
index 99d00af..cd25034 100644
--- a/tests/StringyTest.php
+++ b/tests/StringyTest.php
@@ -494,6 +494,19 @@ class StringyTestCase extends CommonTest
         $this->assertEquals($haystack, $stringy);
     }
 
+    /**
+     * @dataProvider containsAllProvider()
+     */
+    public function testContainsAll($expected, $haystack, $needles,
+                                    $caseSensitive = true, $encoding = null)
+    {
+        $stringy = S::create($haystack, $encoding);
+        $result = $stringy->containsAll($needles, $caseSensitive);
+        $this->assertInternalType('boolean', $result);
+        $this->assertEquals($expected, $result);
+        $this->assertEquals($haystack, $stringy);
+    }
+
     /**
      * @dataProvider surroundProvider()
      */