diff --git a/reference/cubrid/functions/cubrid-connect-with-url.xml b/reference/cubrid/functions/cubrid-connect-with-url.xml
index 2abff19a70..2872c659a0 100644
--- a/reference/cubrid/functions/cubrid-connect-with-url.xml
+++ b/reference/cubrid/functions/cubrid-connect-with-url.xml
@@ -47,6 +47,23 @@
     <member>rctime : An interval between the attempts to connect to the active broker in which failure occurred. After a failure occurs, the system connects to the broker specified by althosts (failover), terminates the transaction, and then attempts to connect to the active broker of the master database at every rctime. The default value is 600 seconds.</member>
    </simplelist>
   </para>
+  <note>
+   <para>
+    ? and : that are used as identifiers in PHP connection URL cann't be
+    included in the password. The following is an example of a password that
+    is invalid to use as connection URL because it contains "?:".
+   </para>
+   <para>
+    $url = "CUBRID:localhost:33000:tdb:dba:12?:?autocommit=off";
+   </para>
+   <para>
+    Passwords that contain ? or : may be passed as a seperate parameter.
+   </para>
+   <para>
+    $url = "CUBRID:localhost:33000:tbd:::?autocommit=off";
+    $conn = cubrid_connect_with_url ($url, "dba", "12?");
+   </para>
+  </note>
  </refsect1>
  
  <refsect1 role="parameters">
diff --git a/reference/cubrid/functions/cubrid-pconnect-with-url.xml b/reference/cubrid/functions/cubrid-pconnect-with-url.xml
index 68322297d1..2254f75190 100644
--- a/reference/cubrid/functions/cubrid-pconnect-with-url.xml
+++ b/reference/cubrid/functions/cubrid-pconnect-with-url.xml
@@ -60,6 +60,23 @@
     <member>rctime : An interval between the attempts to connect to the active broker in which failure occurred. After a failure occurs, the system connects to the broker specified by althosts (failover), terminates the transaction, and then attempts to connect to the active broker of the master database at every rctime. The default value is 600 seconds.</member>
    </simplelist>
   </para>
+  <note>
+   <para>
+    ? and : that are used as identifiers in PHP connection URL cann't be
+    included in the password. The following is an example of a password that
+    is invalid to use as connection URL because it contains "?:".
+   </para>
+   <para>
+    $url = "CUBRID:localhost:33000:tdb:dba:12?:?autocommit=off";
+   </para>
+   <para>
+    Passwords that contain ? or : may be passed as a seperate parameter.
+   </para>
+   <para>
+    $url = "CUBRID:localhost:33000:tbd:::?autocommit=off";
+    $conn = cubrid_connect_with_url ($url, "dba", "12?");
+   </para>
+  </note>
  </refsect1>
  
  <refsect1 role="parameters">