is_int
    (PHP 3, PHP 4, PHP 5)
is_int -- Find whether a variable is an integer
Description
bool 
is_int ( mixed var )
     Finds whether the given variable is an integer.
    
Note: 
      To test if a variable is a number or a numeric string (such as form
      input, which is always a string), you must use
      is_numeric().
     
Parameters
     
- var
 
         The variable being evaluated.
        
 
    Return Values
     Returns TRUE if var is an integer, 
     FALSE otherwise.