(PHP 4 >= 4.0.5, PHP 5 <= 5.0.5, PECL mnogosearch >= 1.0.0)
  	
    
      
      Get mnoGoSearch error number
    
    
      
      int udm_errno ( resource $agent )
    
    
    
    Receiving numeric agent error code.
Parameters: 
  
      
      
      	agent
    	
 
    	A link to Agent, received after call to udm_alloc_agent().
Returns: 
    Returns the mnoGoSearch error number, zero if no error.
 
          
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