floor
    (PHP 3, PHP 4 )
floor -- Round fractions down
Description
float 
floor ( float value)
     Returns the next lowest integer value by rounding down      value if necessary.       The return value of floor() is still of type      float because the value range of float is       usually bigger than that of integer.     
     
| Example 1. floor() example | <?php
echo floor(4.3);   // 4
echo floor(9.999); // 9
 ?> | 
 | 
     
     See also ceil() and      round().