IsWDDX

Description

Returns TRUE if the value is a well formed WDDX packet and FALSE if not.

Syntax

IsWDDX(value)

Parameters

Parameter

Description

value
A WDDX packet.

Parameter	Description
value	A WDDX packet.

Usage

This function processes the WDDX packet specified in value using a validating XML parser which uses the WDDX DTD (Document Type Definition). If the parser processes the value without errors, TRUE is returned. If the value is not a well formed WDDX packet, the function returns FALSE.

You can use this function to validate WDDX packets from unknown sources to prevent CFWDDX deserialization errors.

Example

<cfset packet="

<wddxPacket version='1.0'>
<header></header>
<data>
  <struct>
  <var name='ARRAY'>
    <array length='3'>
      <string>one</string>
    <string>two</string>
    </array>
  </var>
  <var name='NUMBER'>
    <string>5</string>
  </var>
  <var name='STRING'>
    <string>hello</string>
  </var>
  </struct>
</data>
</wddxPacket>"
>

<hr>
<xmp>
<cfoutput>
#packet#
</xmp>
<hr>
IsWDDX() returns #iswddx(packet)#<br>
</cfoutput>
<hr>
<CFWDDX ACTION="WDDX2CFML"
  INPUT=#packet#
  OUTPUT="s"
  VALIDATE="yes"