Added namespace to functions

module/Common/functions/functions.php

@@ -1,36 +1,36 @@
 <?php
-if (! function_exists('env')) {
-    /**
-     * Gets the value of an environment variable. Supports boolean, empty and null.
-     * This is basically Laravel's env helper
-     *
-     * @param string $key
-     * @param mixed $default
-     * @return mixed
-     * @link https://github.com/laravel/framework/blob/5.2/src/Illuminate/Foundation/helpers.php#L369
-     */
-    function env($key, $default = null)
-    {
-        $value = getenv($key);
-        if ($value === false) {
-            return $default;
-        }
+namespace Shlinkio\Shlink\Common;
 
-        switch (strtolower($value)) {
-            case 'true':
-            case '(true)':
-                return true;
-            case 'false':
-            case '(false)':
-                return false;
-            case 'empty':
-            case '(empty)':
-                return '';
-            case 'null':
-            case '(null)':
-                return null;
-        }
-
-        return trim($value);
+/**
+ * Gets the value of an environment variable. Supports boolean, empty and null.
+ * This is basically Laravel's env helper
+ *
+ * @param string $key
+ * @param mixed $default
+ * @return mixed
+ * @link https://github.com/laravel/framework/blob/5.2/src/Illuminate/Foundation/helpers.php#L369
+ */
+function env($key, $default = null)
+{
+    $value = getenv($key);
+    if ($value === false) {
+        return $default;
     }
+
+    switch (strtolower($value)) {
+        case 'true':
+        case '(true)':
+            return true;
+        case 'false':
+        case '(false)':
+            return false;
+        case 'empty':
+        case '(empty)':
+            return '';
+        case 'null':
+        case '(null)':
+            return null;
+    }
+
+    return trim($value);
 }