PHP Dynamic Checkboxes

Posted by Jamsi in PHP on February 7th, 2006 | 5 responses

I noticed the lack of tutorials or articles when using checkboxes in a dynamic form, so I thought I’d post some code I used recently to manage deleting rows. The thing most people forget isthat the checkbox field name has to have a [] on the end as this tells PHP to use an array and not a normal variable to hold the information.
PHP

if ($_REQUEST["btnDelete"])
{
	foreach ($_REQUEST["chkDelete"] as $value) {
	     echo $value;
        }
}

HTML




d>
";
	echo "


";
	echo "


";
	echo "

";
}
?>




Username





".$row[username]."

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5 Responses to “PHP Dynamic Checkboxes”

  1. E says:
    March 3, 2006 at 9:12 am

    Thanks.
    It worked like this for me

    if ($_REQUEST["chkDelete"])
    {
    foreach ($_REQUEST["chkDelete"] as $value)
    {
    echo $value;
    }
    }

  2. Jamsi says:
    March 4, 2006 at 2:57 pm

    Whoops, thanks! Forgot a bracket :)

  3. Dodger says:
    August 18, 2008 at 4:03 pm

    Help me please!

    What table structure i must have?

    I have:

    `userid` varchar(255) NOT NULL,
    `username` varchar(255) NOT NULL,
    `visable` tinyint(1) NOT NULL default ‘1′,

    and trying (my lines 28,29):

    echo ” “;
    echo ” “.$row[username].”";

    and having next error”

    Notice: Use of undefined constant visable – assumed ‘userid’ in C:\Program Files\Apache Software Foundation\Apache2.2\htdocs\test-check-add.php on line 28

    Notice: Use of undefined constant username – assumed ‘username’ in C:\Program Files\Apache Software Foundation\Apache2.2\htdocs\test-check-add.php on line 29

    I whant to change visable value from 1 to 0 if checkbox is not checked. Plz, help, i am newbie…

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  5. Frank says:
    February 7, 2010 at 5:52 am

    Yep man, thanks,
    if ($_REQUEST["btnDelete"]) {
    .
    .
    .
    }
    Was what I need, otherwise it doesn’t show the correct value.
    All the best

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