| Re: How to get the POST name of a field in a form that uses a counter [message #185933 is a reply to message #185931] |
Thu, 15 May 2014 01:01   |
Denis McMahon
Messages: 634
Registered: September 2010
Karma:
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Senior Member |
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On Wed, 14 May 2014 23:22:37 +0000, Adrienne Boswell wrote:
> I need to how to get the POST name of a field in a form that uses a
> counter. The fields are named based on that loop. Below is a small
> snippet of what I am doing:
>
> <?php
>
> $howmuch = array(20, 30, 5, 10, 15);
>
> ?>
> <form method="post">
> <?php for($s=0;$s<count($howmuch);++$s)
> {?>
> <input type="text" name="howmuch<?php echo $s; ?>" value="<?php echo
> $_POST[$howmuch ?]$s; ?>">
This line gave me an error when I tried it. I don't knwo exactly what you
meant to write here, but what you wrote isn't valid php.
> <?php } ?>
> <input type="submit" value="Submit">
> </form>
> Here's where my problem is:
> When the user hits submit, I would get something in the post array like:
> howmuch0 : 20 howmuch1 : 30 howmuch2 : 5 howmuch3 : 10 howmuch4 : 15
Loop through the post data using something like (untested):
$vals = array();
foreach ( $_POST as $field => $data ) {
if ( preg_match( "howmuch(\d+)", $field, $bits ) === 1 )
$index = intval( $bits[1] );
$vals[$index] = $data;
}
$vals[X] now contains the data that was in the field $_POST["howmuchX"]
where X is a sequence of 1 or more digits.
--
Denis McMahon, denismfmcmahon(at)gmail(dot)com
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