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Title : Divide by 2 and return integers
Categories : PHP, Math. Click here to Update Your Picture
Sarah King
Date : Jul 12th 2004
Grade : 1 of 5 (graded 2 times)
Viewed : 13151
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shows the use of the modular function %
example of returning more than one value from a function
see it working at http://sarahk.pcpropertymanager.com/muck/divide2.php
get2vals returns integers of the number divided by 2

<?php
function get2vals($num)
{
 
$valone = intval($num / 2);
 
$valtwo = $valone;
  if ((
$num % 2) > 0) $valtwo++;
  return array(
$valone, $valtwo);
}

if (
$_GET['num']) {
    list(
$answer1, $answer2) = get2vals($_GET['num']);
    echo
"<table border='0' cellpadding='4'>
    <tr><td> </td><td align='right'>
{$answer1}</td></tr>
    <tr><td align='right'>+</td><td align='right'>
{$answer2}</td></tr>
    <tr><td>Total</td><td align='right'>
{$_GET['num']}</td></tr>
    </table>"
;
}
?>
<form action='divide2.php' method='get'>
Number: <input type='text' size='3' name='num' maxlength='6' onchange='javascript:submit()' >
<input type='submit' value='Divide by 2!' >
</form>



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 matthew waygood wrote :1145
why dont you just:-

function get2vals($num) 

  $valone = floor($num / 2); 
  $valtwo = ceil($num / 2); 

  return array($valone, $valtwo);