DOMDocument->validate()
    (no version information, might be only in CVS)
DOMDocument->validate() -- 
   Validates the document based on its DTD
  
Description
class 
DOMDocument { 
bool 
validate ( void  )
}
   Validates the document based on its DTD. 
  
   You can also use the validateOnParse property of 
   DOMDocument to make a DTD validation.
  
Return Values
   Returns TRUE on success or FALSE on failure.
   If the document have no DTD attached, this method will return FALSE.
  
Examples
   
Example 1. Example of DTD validation 
<?php $dom = new DOMDocument; $dom->Load('book.xml'); if ($dom->validate()) {     echo "This document is valid!\n"; } ?>
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     You can also validate your XML file while loading it:
     
<?php $dom = new DOMDocument; $dom->validateOnParse = true; $dom->Load('book.xml'); ?>
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