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Re: using same variable twice on same page [message #171197 is a reply to message #171194] Wed, 29 December 2010 11:25 Go to previous messageGo to previous message
Thomas 'PointedEars'  is currently offline  Thomas 'PointedEars'
Messages: 701
Registered: October 2010
Karma:
Senior Member
Adrienne Boswell wrote:

> richard [wrote]:
>> Everything I have looked at so far talks of how to use one variable
> ONCE!
^^
Please get a decent newsreader that does not produce broken quotes.

> […]
> <?php
>
> if(isset($_GET['year']))
> {$year = $_GET['year'];
> //do some testing to make sure the value is what you want}
> else
> {$year = 1960;}
>
> echo "<p>The initial year is ".$year.".</p>";
>
> echo "<p>Loop 10 years:</p>";
>
> for($i=0;$i<10;++$i)
> {
> echo "<p>The year is now ".$year+$i.".</p>";
> }
> ?>

The following might be slightly less confusing, and slightly more efficient:

<?php
$year = (isset($_GET['year'])) ? $_GET['year'] : 1960;

/* do some testing to make sure the value is what you want */
?>

<p>The initial year is <?php echo $year; ?>.</p>

<p>Loop 10 years:</p>

<?php
for ($i = $year, $maxYear = $year + 10;
$i < $maxYear;
++$i)
{
?><p>The year is now <?php echo $i; ?>.</p><?php
}
?>


PointedEars
--
var bugRiddenCrashPronePieceOfJunk = (
navigator.userAgent.indexOf('MSIE 5') != -1
&& navigator.userAgent.indexOf('Mac') != -1
) // Plone, register_function.js:16
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