PHP Code: Easily detect Odd/Even numbers - This is a simple way to tell whether a given number is odd or even. It works via a bitwise compare.

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Snippet Name: Easily detect Odd/Even numbers

Description: This is a simple way to tell whether a given number is odd or even. It works via a bitwise compare. You really only need one of these functions, since if a number isn't odd, it's even.

Also see:
» Easily detect Odd/Even numbers
» Dates: Oddball Stuff
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» Is Number Even?
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Language: PHP
Highlight Mode: PHP
Last Modified: August 01st, 2009

FUNCTION odd($var) {
    RETURN($var & 1);
}
 
FUNCTION even($var) {
    RETURN(!($var & 1));
}