Provide array_dot if it does not exist

Author: DivineOmega

src/ArrayHelpers.php

@@ -50,4 +50,24 @@ public function set(&$array, $key, $value)
         $array[array_shift($keys)] = $value;
         return $array;
     }
+
+    /**
+     * Flatten a multi-dimensional associative array with dots.
+     *
+     * @param  array   $array
+     * @param  string  $prepend
+     * @return array
+     */
+    public static function dot($array, $prepend = '')
+    {
+        $results = [];
+        foreach ($array as $key => $value) {
+            if (is_array($value) && ! empty($value)) {
+                $results = array_merge($results, static::dot($value, $prepend.$key.'.'));
+            } else {
+                $results[$prepend.$key] = $value;
+            }
+        }
+        return $results;
+    }
 }

src/array_undot.php

@@ -15,3 +15,17 @@ function array_undot(array $dotNotationArray)
         return (new ArrayHelpers())->undot($dotNotationArray);
     }
 }
+
+if (!function_exists('array_dot')) {
+    /**
+     * Flatten a multi-dimensional associative array with dots.
+     *
+     * @param array $dotNotationArray
+     *
+     * @return array
+     */
+    function array_dot(array $dotNotationArray)
+    {
+        return (new ArrayHelpers())->dot($dotNotationArray);
+    }
+}