   #PHP Manual Mathematical Functions floor getrandmax

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                                     fmod

   (PHP 4 >= 4.2.0)
   fmod -- Returns the floating point remainder (modulo) of the division
   of the arguments

Description

   float fmod ( float x, float y)

   Returns the floating point remainder of dividing the dividend (x) by
   the divisor (y). The reminder (r) is defined as: x = i * y + r, for
   some integer i. If y is non-zero, r has the same sign as x and a
   magnitude less than the magnitude of y.

   Example 1. Using fmod()
   <?php
   $x = 5.7;
   $y = 1.3;
   $r = fmod($x, $y);
   // $r equals 0.5, because 4 * 1.3 + 0.5 = 5.7
   ?>
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