diff --git a/src/includes/class/class.LSconfig.php b/src/includes/class/class.LSconfig.php
index 54f6bcb0..b442db5e 100644
--- a/src/includes/class/class.LSconfig.php
+++ b/src/includes/class/class.LSconfig.php
@@ -59,6 +59,57 @@ class LSconfig {
     return false;
   }
 
+  /**
+   * Explode configuration variable keys
+   * @param string $value  The variable name to explode
+   * @return array<string> The exploded variable keys
+   */
+  public static function explode_keys($value) {
+    $keys = [];
+    $key = "";
+    for($i=0; $i<strlen($value); $i++) {
+      switch($value[$i]) {
+        case '\\':
+          $key .= $value[$i+1];
+          $i++;
+          break;
+        case '.':
+          $keys[] = $key;
+          $key = "";
+          break;
+        default:
+          $key .= $value[$i];
+      }
+    }
+    $keys[] = $key;
+    return $keys;
+  }
+
+  /**
+   * Escape a variable name key
+   * @param string $value  The variable name key to explode
+   * @return string The escaped variable name key
+   */
+  public static function escape_key($value) {
+    return str_replace('.', '\\.', $value);
+  }
+
+  /**
+   * Implode configuration variable keys
+   * @param array<array<string>|string> $args  Function arguments could be an array of key or a key
+   *                                           to implode
+   * @return string  The imploded configuration variable keys
+   */
+  public static function implode_keys(...$args) {
+    $keys = [];
+    foreach ($args as $arg)
+      if (is_array($arg))
+        $keys = array_merge($keys, $arg);
+      else
+        $keys[] = $arg;
+    return implode('.', array_map(['LSconfig', 'escape_key'], $keys));
+  }
+
  /**
   * Get a specific configuration variable value
   *
@@ -73,7 +124,7 @@ class LSconfig {
   * @return mixed The configuration variable value
   **/
   public static function get($var, $default=null, $cast=null, $data=null) {
-    $vars = explode('.', $var);
+    $vars = self :: explode_keys($var);
     $value = $default;
     if (is_array($vars)) {
       $value = (is_array($data)?$data:self :: $data);
@@ -142,7 +193,7 @@ class LSconfig {
       }
       else {
         foreach ($subkeys as $subkey) {
-          $key = "$root_key.$subkey";
+          $key = self :: implode_keys(self :: explode_keys($root_key), $subkey);
           $return[$key] = self :: get($key, $default, $cast, $data);
         }
       }
@@ -163,7 +214,7 @@ class LSconfig {
   * @return boolean True si tout s'est bien passé, False sinon
   **/
   public static function set($var,$val) {
-    $vars=explode('.',$var);
+    $vars = self :: explode_keys($var);
     if(is_array($vars)) {
       $code='self :: $data';
       foreach ($vars as $v) {