note 46650 added to ref.math
| From: | christian dot leo at aon dot at | Date: | Tue, 19 Oct 2004 09:12:47 +0000 |
| Subject: | note 46650 added to ref.math | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-78750@lists.php.net to get a copy of this message | ||
here's a little function i wrote recently to get all primes between 3 and a value you'd
like:
<?php
function prime($i)
{
$n = 3;
while($n <= $i)
{
$count = 0;
$m = 2;
while($m < $n)
{
$r = $n % $m;
if($r == 0)
{
$count++;
$m++;
}
if($r != 0)
{
$m++;
}
}
if($count == 0) //must be a prime
{
echo $n."<br>";
}
$n++;
}
}
?>
----
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