bzerrno
    (PHP 4 >= 4.3.3, PHP 5)
bzerrno -- Returns a bzip2 error number
Description
int 
bzerrno ( resource bz )
   Returns the error number of any bzip2 error returned by the given file
   pointer.
  
Parameters
   
- bz
 
       The file pointer. It must be valid and must point to a file 
       successfully opened by bzopen().
      
 
  Return Values
   Returns the error number as an integer.