How to get whole and decimal part of a number?

Question

Given, say, 1.25 - how do I get "1" and ."25" parts of this number?

I need to check if the decimal part is .0, .25, .5, or .75.

Answer 1

$n = 1.25; $whole = floor($n);      // 1 $fraction = $n - $whole; // .25 

Then compare against 1/4, 1/2, 3/4, etc.

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In cases of negative numbers, use this:

function NumberBreakdown($number, $returnUnsigned = false) {   $negative = 1;   if ($number < 0)   {     $negative = -1;     $number *= -1;   }    if ($returnUnsigned){     return array(       floor($number),       ($number - floor($number))     );   }    return array(     floor($number) * $negative,     ($number - floor($number)) * $negative   ); } 

The $returnUnsigned stops it from making -1.25 in to -1 & -0.25

Answer 2

This code will split it up for you:

list($whole, $decimal) = explode('.', $your_number); 

where $whole is the whole number and $decimal will have the digits after the decimal point.