Math

is_even

Type:	code fragment
Added by:	stephenv
Entered:	29/03/2002
Last modified:	03/12/2001
Rating:	- (fewer than 3 votes)
Views:	5494

simple function to determine if a number is even or odd.

<?php
 /*

                            is_even - returns 1 if number is even, returns 0 if it's odd

                            

                            -----

                            DESCRIPTION

                            

                            int is_even( [number] )

                            

                            -----

                            EXAMPLE

                            

                            $number = 5;

                            echo is_even($number); // returns 0

                            

                            */

                            
 function is_even($num)

                                { 

                                if(!is_int($num/2))

                                    {

                                    return 1;

                                    }

                                else

                                    {

                                    return 0;

                                    }

                                }
 ?>

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