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Nov 27th, 2006

get checkbox value

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i have a form with multiple checkbox. how to get the values that are checked.

pls give a quick reaply.

thanks

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fariba123

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Nov 27th, 2006

Re: get checkbox value

var checkBox = document.getElementById(boxID);
checkBoxValue = checkBox.value;

Phaelax

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Nov 27th, 2006

-1

Re: get checkbox value

if you are posting it using a PHP form
then you will use something like that

($_POST['checkboxname] == "ON")

if you want to see what checkboxes are checked you have to declare them as an array then loop through them

see this link

http://www.daniweb.com/techtalkforums/thread62312.html

the_count

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Nov 27th, 2006

Re: get checkbox value

Or if you are talking about a group of checkboxes with the same name you would do something like this:

page_html.php

PHP Syntax (Toggle Plain Text)
<form method="post" action="">
<input type="checkbox" id="things[]" value="red"> Cat<br>
<input type="checkbox" id="things[]" value="blue"> Mouse<br>
<input type="checkbox" id="things[]" value="green"> Car<br>
<input type="checkbox" id="things[]" value="yellow"> DaniWeb
</form>
<form method="post" action="">
<input type="checkbox" id="things[]" value="red"> Cat<br>
<input type="checkbox" id="things[]" value="blue"> Mouse<br>
<input type="checkbox" id="things[]" value="green"> Car<br>
<input type="checkbox" id="things[]" value="yellow"> DaniWeb
</form>

page_php.php

php Syntax (Toggle Plain Text)
<?php
$things = serialize($_POST['things']);
 
$query = "INSERT INTO table(things) values($things)";
mysql_query($query) or die(mysql_error());
?>
<?php
$things = serialize($_POST['things']);

$query = "INSERT INTO table(things) values($things)";
mysql_query($query) or die(mysql_error());
?>

basically just turn it into an array and dump the crap into a db. Notice that you have to "serialize" the data first and don't forget to "unserialize" when you are taking the data back out of the db (selecting).

You will then most likely have to implement a loop when you take the "crap" out of the db (as it will be in an array). The following link is a really good article on this, I would check it out.

Storing form array data to MySQL using PHP

nickclarson

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Dec 15th, 2010

Re: get checkbox value

Instead of id use name in ur HTML

PHP Syntax (Toggle Plain Text)
<form method="post" action="">
<input type="checkbox" name="things[]" value="red"> Cat<br>
<input type="checkbox" name="things[]" value="blue"> Mouse<br>
<input type="checkbox" name="things[]" value="green"> Car<br>
<input type="checkbox" name="things[]" value="yellow"> DaniWeb
</form>
<form method="post" action="">
<input type="checkbox" name="things[]" value="red"> Cat<br>
<input type="checkbox" name="things[]" value="blue"> Mouse<br>
<input type="checkbox" name="things[]" value="green"> Car<br>
<input type="checkbox" name="things[]" value="yellow"> DaniWeb
</form>

And post.php

PHP Syntax (Toggle Plain Text)
<?php
$checkBox = $_POST['things'];
for($i=0; $i<sizeof($checkBox); $i++){
    $query = "INSERT INTO table(things) values('".$checkBox[$i]."')";
    mysql_query($query) or die(mysql_error());
}
?>
<?php
$checkBox = $_POST['things'];
for($i=0; $i<sizeof($checkBox); $i++){
    $query = "INSERT INTO table(things) values('".$checkBox[$i]."')";
    mysql_query($query) or die(mysql_error());
}
?>

Last edited by Ezzaral; Dec 15th, 2010 at 1:28 pm. Reason: Added code tags. Please use them to format any code that you post.

muhammadsajid

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Dec 15th, 2010

Re: get checkbox value

PHP Syntax (Toggle Plain Text)
<form action='page.php' method='post'>
<input type='checkbox' name='chk' value='value1'> ANY VALUE 1 <br>
<input type='checkbox' name='chk' value='value2'> ANY VALUE 2 <br>
<input type='checkbox' name='chk' value='value3'> ANY VALUE 3 <br>
<input type='checkbox' name='chk' value='value4'> ANY VALUE 4 <br>
<input type='submit' name='submit' value='Get Value'>
</form>
<form action='page.php' method='post'>
<input type='checkbox' name='chk' value='value1'> ANY VALUE 1 <br>
<input type='checkbox' name='chk' value='value2'> ANY VALUE 2 <br>
<input type='checkbox' name='chk' value='value3'> ANY VALUE 3 <br>
<input type='checkbox' name='chk' value='value4'> ANY VALUE 4 <br>
<input type='submit' name='submit' value='Get Value'>
</form>

page.php codes:

PHP Syntax (Toggle Plain Text)
<?php
 
   $value = $_POST['chk'];
 
   echo $value;
 
?>
<?php
  
   $value = $_POST['chk'];

   echo $value;

?>

Last edited by Ezzaral; Dec 15th, 2010 at 1:29 pm. Reason: Added code tags. Please use them to format any code that you post.

lyrico

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Dec 15th, 2010

Re: get checkbox value

This this
http://www.daniweb.com/forums/thread331498.html

cossay

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Feb 14th, 2011

Re: get checkbox value

<input name='checkbox[]' type='checkbox' id='checkbox[]' value=\"".$row['id']."\">

Button at the bottom of form:
<input name='delete' type='submit' id='delete' value='Delete'>
<?php

if(isset($_POST['delete'])){
for($i=0;$i<$count;$i++){
$delete = $_REQUEST['delete'];
$checkbox = $_REQUEST['checkbox'];
$count = count($_REQUEST['checkbox']);
$del_id = $checkbox[$i];
$sql = "DELETE FROM $tbl_name WHERE id='$del_id'";
$result = mysql_query($sql);
}

// if done than auto refresh page
if($result){
echo "<meta http-equiv=\"refresh\" content=\"0;URL=checkbox.php\">";
}
mysql_close();
?>

Kuldeep_singh

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Feb 14th, 2011

Re: get checkbox value

is there possible to use session and cookie at a time

navmalik

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This thread is more than three months old

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