verify : add email test

git-svn-id: https://svn.fournier38.fr/svn/ProgSVN/trunk@2914 bf3deb0d-5f1a-0410-827f-c0cc1f45334c

verify.php

@@ -129,4 +129,16 @@ class verify
       return FALSE;
     return TRUE;
   }
+
+  ////////////////
+  //   EMAILS   //
+  ////////////////
+  /** Return TRUE if the provided value is a valid email address
+    * @param string $val The value to check
+    * @return boolean
+    */
+  public function is_email ($val)
+  {
+    return !! filter_var ($val, FILTER_VALIDATE_EMAIL);
+  }
 }