get_resource_type
  
   Returns the resource type
  
  
 
  Description
  
   string get_resource_type
    ( resource $handle
   )
  
  
 
  Parameters
  
   
    
     - 
handle
- 
      
       The evaluated resource handle.
       
 
 
  Return Values
  
   If the given handle is a resource, this function
   will return a string representing its type. If the type is not identified
   by this function, the return value will be the string 
   Unknown.
  
  
   This function will return NULL and generate an error if 
   handle is not a resource.
  
  
 
 
  Examples
  
   
    Example #1 get_resource_type example
    
<?php
// prints: mysql link
$c = mysql_connect();
echo get_resource_type($c) . "\n";
// prints: stream
$fp = fopen("foo", "w");
echo get_resource_type($fp) . "\n";
// prints: domxml document
$doc = new_xmldoc("1.0");
echo get_resource_type($doc->doc) . "\n";
?>