Fractions with PHP


<?php



// get some numbers to play with



$x=rand(0,130000)/10;

$y=rand(0,1200);

$z=rand(0,4)/64;

$array=array($x, $x, $x, $y, $y, $z, 324.19, 425/7, sqrt(2), pi(), pi());



// functions



function mult($n) { return intval(round($n*16)); }



function frac($num) { $mod=fmod($num,1)*16; 

if (1 & $mod) { return " - ".$mod."/16"; } 

else $mod=$mod/2;

if (1 & $mod) { return " - ".$mod."/8"; }

else $mod=$mod/2;

if (1 & $mod) { return " - ".$mod."/4"; }

else $mod=$mod/2;

if (1 & $mod) {return " - ".$mod."/2";}

}



// make a table



echo '<table>';

    $array = array_map("mult", $array);

    $array = (array_filter($array, strval)); //get rid of zeros

    $array = (array_count_values ($array));

krsort ($array);

while (list ($key, $val) = each ($array)) {

    $key = $key/16;

echo "<tr><td>$val</td><td>&nbsp; @ &nbsp;</td><td align=\"right\">".intval($key)." </td><td> ".frac($key)." </td></tr>";

}

echo '</table>';



?>