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         <td valign="top" class="name">ISWDDX</td>
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    <td valign="top" colspan="2" class="description"><span class="title">Description</span>
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Determines whether a value is a well-formed WDDX packet.
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    <td valign="top" colspan="2" class="description"><span class="title">Returns</span>
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True, if the value is a well-formed WDDX packet; False, otherwise.
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    <td valign="top" colspan="2" class="description"><span class="title">Category</span>
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Decision functions, XML functions
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    <td valign="top" colspan="2" class="syntax"><span class="title">Syntax</span><pre>IsWDDX(value)
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    <td valign="top" colspan="2" class="description"><span class="title">See also</span>
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"Using WDDX" in Chapter&#160;35, "Using XML and WDDX," in ColdFusion MX Developer's Guide
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    <td valign="top" colspan="2" class="description"><span class="title">History</span>
<p>
ColdFusion&#160;MX: Changed behavior: if the value parameter is not a WDDX packet, ColdFusion returns False. (In earlier releases, ColdFusion threw an error.) 
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    <td valign="top" colspan="2" class="description"><span class="title">Parameters</span>
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    <td valign="top" colspan="2" class="description"><span class="title">Usage</span>
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This function processes a WDDX packet with a validating XML parser, which uses the WDDX Document Type Definition (DTD). 
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To prevent CFWDDX deserialization errors, you can use this function to validate WDDX packets from unknown sources.
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    <td valign="top" colspan="2" class="description"><span class="title">Example</span><pre>&lt;cfset packet=&quot;
   &lt;wddxPacket version='1.0'&gt;
   &lt;header&gt;&lt;/header&gt;
   &lt;data&gt;
      &lt;struct&gt;
      &lt;var name='ARRAY'&gt;
         &lt;array length='3'&gt;
            &lt;string&gt;one&lt;/string&gt;
         &lt;string&gt;two&lt;/string&gt;
         &lt;/array&gt;
      &lt;/var&gt;
      &lt;var name='NUMBER'&gt;
         &lt;string&gt;5&lt;/string&gt;
      &lt;/var&gt;
      &lt;var name='STRING'&gt;
         &lt;string&gt;hello&lt;/string&gt;
      &lt;/var&gt;
      &lt;/struct&gt;
   &lt;/data&gt;
   &lt;/wddxPacket&gt;&quot;
   &gt;
&lt;hr&gt;
&lt;xmp&gt;
&lt;cfoutput&gt;#packet#
&lt;/xmp&gt;
IsWDDX() returns #IsWDDX(packet)#&lt;br&gt;
&lt;/cfoutput&gt;
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<td valign="top" class="name">VALUE</td>
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<p>A WDDX packet</p>

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