I have this table contains name and value, how can i convert the contents of
$row=mysql_fetch_array($result);
into checkboxes?
Assuming $row is an associative array mapping column name onto a boolean 1 or 0 value, you could do something like this:
foreach($row as $colname=>$boolean)
{
//create a name for the checkbox which will produce a nice
//PHP array of checked column names in $_POST['col']
$name="col[$colname]";
//create an id for the checkbox
$id='col'.$colname;
//now we output the checkbox - on form submission you will
//see an element in $_POST['col'][$colname] if checked, and
//no element at all if unchecked...
echo '<input type="checkbox" value="1" '.
'name="'.$name.'" id="'.$id.'" '.
($boolean?'checked="checked"':'').
'>';
//output a label - note we'd tied this to the id of the checkbox
//which means you can click the label to tick the box
echo "<label for=\"$id\">colname</label><br/>";
}
When the form is submitted, you'll get an array in $_POST['col'] indexed by column name, but only for those boxes which are checked, so you'd set to false any columns which are not set.
See here: http://dev.w3.org/html5/spec/Overview.html#checkbox-state
So, try this:
<input type="checkbox" checked="true">
Related
I have a variable number of fields in a table,where the number of column headings are directly fetched from database,so the number of heading increases as the data from database increase(eg-demo,demo1,demo2,..).For each column there is a selectbox,here i have given name for check box as txtcheck".$i."[] where $i is set as an incriminating value.
<input type='checkbox' name='txtcheck".$i."[]' value='1'>
My doubt is how can i fetch the checkbox post value when form submission.I dont know whether this is correct way nor find a way to efficiently do this. Please advise.
The name of your checkboxes shouldn't be incremented, but only be txtcheck[]. In this case the selected boxes will be transfered as array.
<input type='checkbox' name='txtcheck[]' value='1' />
In your PHP code you can access this array with $_POST['txtcheck'].
<?php
$checkedBoxes = $_POST['txtcheck'];
foreach ($checkedBoxes as $checkdBox) {
// Here you can handle each box that was checked in your form, e.g. echo it's value
echo $checkedBox . ' ';
}
?>
So if you checked e.g. boxes with values 1, 5 and 10 your output will be 1 5 10
I'm creating a control panel and having check boxes like the following
The value of $myboxid is the checkbox id, example: cb1 and the name is just the value eg Name of place: London. It grabs this information from my database
<input id='".$myboxid."' name='cplace[]' checked type='checkbox' value='".$box."'><label for='".$myboxid."'>".$boxname."</label>
What I'm trying to do is check which box is selected out of the multi box selection. I can get which boxes are selected and for that to output the value, my problem is I also need it to tell me which boxes are not selected.
My Form method is POST, my php back end is the following
$lname=$_POST['cplace'];
if(isset($_POST['cplace'])) {
foreach($lname as $place){
echo $place." CHECKED <BR>";
}
}
I'm trying to get this to output the checkbed boxes and the ones which are not selected.
Thanks for the help!
Well you can check the value of the checkbox in the POST array.
Simply print all the checkbox from the db and then check the value
In one line you can do like this
Inside your db loop
$isChecked=(in_array($_POST['cplace'], $box)) ? "checked" : "";
echo "<input id='".$myboxid."' name='cplace[]' ".$isChecked." type='checkbox' value='".$box."'><label for='".$myboxid."'>".$boxname."</label>";
Please see this link
http://thedesigningworld.com/bea
Here's a Small form contains 8-9 fields + a group of checkboxes
I want to save all details in DB + want to display in a table in proper manner, but it not works properly
Here's the code which i used
for($i=0;$i<count($_POST[wert1]);$i++)
{
if($_POST[wert1][$i]!= "")
{
$check1[] =$_POST['wert1'][$i]; } }
$new1=implode(',', $check1);
$result = "INSERT into table1(check1) values($new1)";
$result = mysqli_query($con, $result);
So i've one doubt that for each checkbox row, should i need to define same array name or different like here i used array name as wert1[] for first row
Checkbox values are not transmitted if the box is not checked.
If you have influence, you could put a hidden input field of the same name before the checkbox and the value "0", like:
<input type="hidden" name="checkbox_name" value="0" />
<input type="checkbox" name="checkbox_name" value="1">Some Text</input>
In you example site, you're using array notation, which is basically a good thing. However, you have not given an index so you might not recognize missing elements.
I have created a table of checkboxes. The rows are divided up by category, and either a checked or unchecked checkbox gets displayed under a department column. I have a lot of code so I will break down what I am supplying. I am creating an array via each column (odd method, yes). I have noticed that if all check boxes are deselected, it will return the hidden value of 0 each time it loops. Thats great, thats what I wanted. However, if the box is selected, it returns both the value of 0 and the value of 3. For instance:
Test = Array()
Test[0] => 0
Test[1] => 3
How can I prevent it from posting the hidden value?
$row_two = mysql_query("SELECT dept_id FROM categories WHERE cat_name = '{$cats['cat_name']}' and bus_id = '{$busUnits['bus_id']}'");
while (($test_two=mysql_fetch_assoc($row_two)))
{
$AnotherTest = implode(',', $test_two);
$WhatTest = explode(",", $AnotherTest);
if(in_array("3",$WhatTest, TRUE))
{
echo '<input type="hidden" name="Cat_CBC_Test_One[]" value="0">';
echo '<td><input type="checkbox" name="Cat_CBC_Test_One[]" value="3" checked></td>';
}
else
{
echo '<input type="hidden" name="Cat_CBC_Test_One[]" value="0">';
echo '<td><input type="checkbox" name="Cat_CBC_Test_One[]" value="3"></td>';
}
To detect unchecked Checkboxes i would add a hidden field with a different name, like _Cat_CBC_Test_One. That way you dont have the issue with the hidden field interfering.
Then, on the server, you scan through for parameters that start with _ and add the missing "false" Parameters for further processing.
I am dynamically creating forms based on values in a database. Each form element corresponds to a specific database entry, which includes the name, label, type, and (depending upon the type) possible values to be displayed with the form element.
The name value for each form element is set to the identity column value of the corresponding database entry.
I'm running into a problem when I am working with checkboxes, though. I'm trying to retrieve the array of selected values, but I am unable to retrieve more than one. I believe that this is because I am not properly setting the checkbox names to an array, but I am not certain.
Here is where I am generating the checkbox tags:
$answers = explode(',',$answerKey);
for($i=0; $i < count($answers); $i++) {
$questionTag .= "<INPUT TYPE='checkbox' name='$id' value='$answers[$i]' />$answers[$i]";
}
Yet when I post back my results, the results of $_POST["$id"] only returns the last value in the checkbox list.
Any suggestions would be appreciated!
$questionTag .= "<INPUT TYPE='checkbox' name='".$id."[]' value='$answers[$i]' />$answers[$i]";