diff --git a/README.md b/README.md
index e9d4423..cc0fed6 100644
--- a/README.md
+++ b/README.md
@@ -255,6 +255,14 @@ Use the `setKeys($data)` method. Example:
         ]
     ]);
 
+Alternatively, you can also provide an associative array of keys and values:
+
+    $file = DotenvEditor::setKeys([
+        'ENV_KEY_1' => 'your-value-1',
+        'ENV_KEY_2' => 'your-value-2',
+        'ENV_KEY_3' => 'your-value-3',
+    ]);
+
 ###### Delete a setter line in buffer
 Use the `deleteKey($key)` method. Example:
 
diff --git a/src/Jackiedo/DotenvEditor/DotenvEditor.php b/src/Jackiedo/DotenvEditor/DotenvEditor.php
index 9f05078..f1dc6c6 100644
--- a/src/Jackiedo/DotenvEditor/DotenvEditor.php
+++ b/src/Jackiedo/DotenvEditor/DotenvEditor.php
@@ -327,7 +327,18 @@ public function addComment($comment)
      */
     public function setKeys($data)
     {
-        foreach ($data as $setter) {
+        foreach ($data as $i => $setter) {
+            if (!is_array($setter)) {
+                if (!is_string($i)) {
+                    continue;
+                }
+
+                $setter = [
+                    'key' => $i,
+                    'value' => $setter,
+                ];
+            }
+
             if (array_key_exists('key', $setter)) {
                 $key     = $this->formatter->formatKey($setter['key']);
                 $value   = array_key_exists('value', $setter) ? $setter['value'] : null;