I have a page to view assets with an Edit link. When I click the link it goes to edit_case.php which has a form to edit what elements of the row are in the database as checkboxes. However the boxes do not show them as checked. I have the following code...
// get already checked box values
$repop = "SELECT * FROM case_audit WHERE case_id = $case_id";
$popresults = mysqli_query($dbc, $repop);
$row = mysqli_fetch_array($popresults, MYSQLI_ASSOC);
print_r ($row);
The print_r does show the whole record row from DB. which is either a 1 or 0, checked || not checked.
The form...
<div id="facepics">
<label><input type="checkbox" name="Facial1" value="<?php echo $row['frontrest']; ?>" >Front at Rest </label><br>
<label><input type="checkbox" name="Facial2" value="<?php echo $row['frontbigsmile']; ?>" >Front Big Smille</label><br>
<label><input type="checkbox" name="Facial3" value="<?php echo $row['profile']; ?>" >Profile</label><br>
<label><input type="checkbox" name="Facial4" value="<?php echo $row['subvertex']; ?>" >SubMento Vertex</label><br>
</div>
I know I need to turn the 1's to "checked" just not sure how best to do that.
so basically checked="true" attribute in input creates a checked checkbox.
HTML Code looks like
<input type="checkbox" checked="true">
In your case you can do it like:
<input type="checkbox" name="Facial1" value="frontrest" <?= (intval($row['frontrest']) == 1) ? 'checked' : '';>
Also note that I changed value attribute, with frontrest so that you can identify the checkbox uniquely
EDIT: I have modified the code
<input type="checkbox" name="Facial1" <?=$row['frontrest']==1?'checked':''?>>
I often have the same issue where the browser ignores checked="false" and checks all
so I use
<input type="checkbox" checked>
Related
I know there's "PHP keep checkbox checked after submitting form" on here, but that thread does not solve my problem, because I have multiple checkbox, what I need is when you check a checkbox, this stay checked after submit.
At the moment with this code nothing happens, I tried another way but when I check "id7" checkbox, all the checkbox get checked.
I have to know which checkbox was checked by the id that I give it, but I do not know how.
while ($fila = mysql_fetch_array($rs)) {
echo utf8_encode("
<tr>
<td>
".$fila['title']."
</td>
");?>
<td>
<input type="checkbox" name="checklist[]" value="<?php echo htmlspecialchars($fila['id']); ?>" <?php if(isset($_POST['checklist[]']) && is_array($_POST['checklist[]']) && in_array('$fila', $_POST['checklist[]'])) echo 'checked="checked"'; ?> />
</td>
<?php
}
}
?>
First, the value of checkbox is $fila['id'] so when you are checking, use $fila['id'] instead of $fila. Also, when PHP receive array input fields with [] in their names the [] will be removed so that the correct POST variable is $_POST['checklist'].
Try changing this line:
<input type="checkbox" name="checklist[]" value="<?php echo htmlspecialchars($fila['id']); ?>" <?php if(isset($_POST['checklist[]']) && is_array($_POST['checklist[]']) && in_array('$fila', $_POST['checklist[]'])) echo 'checked="checked"'; ?> />
to
<input type="checkbox" name="checklist[]" value="<?php echo htmlspecialchars($fila['id']); ?>" <?php if(isset($_POST['checklist']) && is_array($_POST['checklist']) && in_array($fila['id'], $_POST['checklist'])) echo 'checked="checked"'; ?> />
"name" is like a variable name - by using checklist[] you're defining an array as the variable.
Why not just name each checkbox properly? When the form is submitted, use the contents of $_POST to set each variable into the user's $_SESSION.
If the page is refreshed, use the values from $_SESSION to determine if the checkbox should be ticked. Something like (untested):
<input type="checkbox" name="vehicle" value="Bike"
<?php if (isset($_SESSION['bike_checked']) echo 'checked'; ?>> I have a bike<br>
<input type="checkbox" name="vehicle" value="Car"
<?php if (isset($_SESSION['car_checked']) echo 'checked'; ?>> I have a car<br>
<input type="submit" value="Submit">
I have 1 form in with multiple checkboxes in it (each with the code):
<input type="checkbox" name="check_list" value="<? echo $row['Report ID'] ?>">
Where $row['Report ID'] is a primary key in a database -so each value is different.
How would I be able to tell which checkboxes have been checked? (Maybe multiple)
This is for an inbox system and I have a button below that I want (when clicked) to delete all messages (ids of: $row['Report ID']) which have the checkbox's checked.
Set the name in the form to check_list[] and you will be able to access all the checkboxes as an array($_POST['check_list'][]).
Here's a little sample as requested:
<form action="test.php" method="post">
<input type="checkbox" name="check_list[]" value="value 1">
<input type="checkbox" name="check_list[]" value="value 2">
<input type="checkbox" name="check_list[]" value="value 3">
<input type="checkbox" name="check_list[]" value="value 4">
<input type="checkbox" name="check_list[]" value="value 5">
<input type="submit" />
</form>
<?php
if(!empty($_POST['check_list'])) {
foreach($_POST['check_list'] as $check) {
echo $check; //echoes the value set in the HTML form for each checked checkbox.
//so, if I were to check 1, 3, and 5 it would echo value 1, value 3, value 5.
//in your case, it would echo whatever $row['Report ID'] is equivalent to.
}
}
?>
Edit To reflect what #Marc said in the comment below.
You can do a loop through all the posted values.
HTML:
<input type="checkbox" name="check_list[]" value="<?=$rowid?>" />
<input type="checkbox" name="check_list[]" value="<?=$rowid?>" />
<input type="checkbox" name="check_list[]" value="<?=$rowid?>" />
PHP:
foreach($_POST['check_list'] as $item){
// query to delete where item = $item
}
you have to name your checkboxes accordingly:
<input type="checkbox" name="check_list[]" value="…" />
you can then access all checked checkboxes with
// loop over checked checkboxes
foreach($_POST['check_list'] as $checkbox) {
// do something
}
ps. make sure to properly escape your output (htmlspecialchars())
<input type="checkbox" name="check_list[<? echo $row['Report ID'] ?>]" value="<? echo $row['Report ID'] ?>">
And after the post, you can loop through them:
if(!empty($_POST['check_list'])){
foreach($_POST['check_list'] as $report_id){
echo "$report_id was checked! ";
}
}
Or get a certain value posted from previous page:
if(isset($_POST['check_list'][$report_id])){
echo $report_id . " was checked!<br/>";
}
It's pretty simple. Pay attention and you'll get it right away! :)
You will create a html array, which will be then sent to php array.
Your html code will look like this:
<input type="checkbox" name="check_list[1]" alt="Checkbox" value="checked">
<input type="checkbox" name="check_list[2]" alt="Checkbox" value="checked">
<input type="checkbox" name="check_list[3]" alt="Checkbox" value="checked">
Where [1] [2] [3] are the IDs of your messages, meaning that you will echo your $row['Report ID'] in their place.
Then, when you submit the form, your PHP array will look like this:
print_r($check_list)
[1] => checked
[3] => checked
Depending on which were checked and which were not.
I'm sure you can continue from this point forward.
I have an array of checkboxes name="box[]". Through PHP I make sure that they're checked after they're submitted by echoing "checked='checked'" if they were checked at submit event.
Now, if I check the third box, the value jumps down to the first checkbox after submit, since the array was empty up until the third checkbox. Same, if I check the 2nd and 3rd checkbox, they jump down to 1st and 2nd after submit. This is the code I'm using:
<form method="post">
<input type="checkbox" name="box[]" value="true" <?php if ($box[0] == true) echo "checked='checked'"; ?>><br>
<input type="checkbox" name="box[]" value="true" <?php if ($box[1] == true) echo "checked='checked'"; ?>><br>
<input type="checkbox" name="box[]" value="true" <?php if ($box[2] == true) echo "checked='checked'"; ?>><br>
<p>
<input type="submit" value="Submit">
</form>
Try it at:
http://experiencerapanui.com/selecttest.php
Can I make the checkboxes fill up the array with a value "false" or whatever, if the box is unchecked? Which way should I go?
****** EDIT ******
Thanks to phant0m, I managed to come up with a solution:
<form method="post">
<input type="checkbox" name="box[]" value="1" <?php if (in_array("1", $box)) echo "checked='checked'"; ?>><br>
<input type="checkbox" name="box[]" value="2" <?php if (in_array("2", $box)) echo "checked='checked'"; ?>><br>
<input type="checkbox" name="box[]" value="3" <?php if (in_array("3", $box)) echo "checked='checked'"; ?>><br>
<p>
<input type="submit" value="Submit">
</form>
Putting unique values for the checkboxes, then if I find the value in the array $box[], the box is marked as checked.
This does not work, because only those checkboxes, that are checked, are being put into the $box array.
Either use different names, or different values to distinguish between them.
Consider this: You check the second and the third checkbox. In PHP, you will receive:
$_POST['box'] = array(0 => "true", 1 => "true");
You cannot know, which checkboxes have been checked, unless all of them are.
The POST value should start with isset, then !empty($array) determines if the POST value is an array and prevents a null array error when no options are selected.
&& is_array($_POST['box']) could be used in addition to !empty($_POST['box']) as well to check the validity of the array.
A variable is used in the following examples for the value field, as it makes it easier to define and populate inputs when using a foreach loop and may be sanitized if needed as a preventive measure.
It would probably be a good idea to sanitize the $_POST array also, and enclosing it in a function with the validation would allow it all to be called from the checkbox input and keep the input area tidy.
<input type="checkbox" name="box[]" value="<?php echo $unique_id; ?>" <?php if(isset($_POST['box']) && !empty($_POST['box']) && in_array($unique_id, $_POST['box'])) echo "checked='checked'"; ?>>
OR
<input type="checkbox" name="box[]" value="<?php echo $unique_id; ?>" <?php my_function(); ?>>
Excellent question and solutions! There seem to be relatively few examples that use an array method to preserve Post selections, and the one provided here is relevant and very helpful even years later.
I have an HTML form with a dynamic number of checkbox fields, all of which are encapsulated within a submit form. When the form is submitted, I want to loop through the values of each checkbox field with a PHP script. At the same time, I have to keep a certain ID associated with the checkbox field so that when I loop through each one in my script, I can use the ID to update the correct row in my database. Currently, I have:
<input checked="checked" name="attended_<?php echo($pid); ?>"
I'm just not sure how to go ahead and access all of the attended[] values from my PHP script (and keep the ID at the same time). Would I use a multidimensional array like the following?
<input checked="checked" name="attended[<?php echo($i); ?>][<?php echo($pid); ?>]; ?>"
I'd appreciate any help on this. Thanks!
lets say this is data from form
<input checked="checked" name="attended[1]; ?>"
<input checked="checked" name="attended[2]; ?>"
<input checked="checked" name="attended[3]; ?>"
<input checked="checked" name="attended[4]; ?>"
<input checked="checked" name="hello[1]; ?>"
<input checked="checked" name="hello[2]; ?>"
this is how it would look as array. not needed its just for show
// $k => $v
$attended[1]='blah blah';
$attended[2]='blah blah';
$attended[3]='blah blah';
$attended[4]='blah blah';
$hello[1]='blah blah';
$hello[2]='blah blah';
science bit
foreach($attended as $k=>$v){
$sql = "UPDATE mytable SET attended = '$v', hello = '{$hello[$k]}' where id = '$k'";
$query = mysql_query($sql) or die("Cannot query the database.<br />" . mysql_error());
}
all associated data should have same pid e.g
<input checked="checked" name="attended[1]; ?>"
<input checked="checked" name="hello[1]; ?>"
Usually when I create checkboxes I put an index in the name. This way you can loop through each checkbox in your submittion code.
<input type="checkbox" name="cbGroup[1]" value="y" />
<input type="checkbox" name="cbGroup[2]" value="y" />
<input type="checkbox" name="cbGroup[3]" value="y" />
and in your PHP
foreach($_POST['cbGroup'] as $index=>$checkbox) {}
You'll want to make sure your $_POST['cbGroup'] is set though because it won't be if the checkbox isn't checked.
Edit: Sorry, I should learn to read the question fully heh :) I use multidimensional arrays in PHP with HTML inputs all the time and I think it's the way I would go.
Maybe you could do it with a hidden field which is sort of 'associated' with the checkbox by the name:
<input checked="checked" name="attended_<?php echo($i); ?>"
<input type="hidden" name="attended_<?php echo($i); ?>_reference" value="<?php echo($pid); ?>" />
So while processing the POST-data after a submit, you could put the references together again with some string-manipulation.
I just want to have php determines whether a checkbox is checked, but I am running into a problem of getting the right return. Help please.
My html code
<label>
<input name="Language" type="checkbox" id="aa" checked="checked" />
One</label>
<label>
<input name="Language" type="checkbox" id="bb" />Two</label>
<label>
<input type="checkbox" name="Language" id="cc" />Three</label>
I pass the values to php by the $_GET method
my php code:
$aa=$_GET["aa"];
$bb=$_GET["bb"];
$cc=$_GET["cc"];
echo $aa."<br>";
echo $bb."<br>";
echo $cc."<br>";
the output is
true
false
false
I next want to just determine if each box is checked and if so, do something.
if ($aa == true) { $abc="checked";}
else { $abc="not checked"; }
if ($bb == true) { $cde="checked";}
else { $cde="not checked"; }
if ($fgh == true) { $fgh="checked";}
else { $fgh="not checked"; }
But the if statements always return true, even if the box is not checked. I tried variations of "===" and "!=", but it does not seem to work.
TIA
if (isset($_GET['checkbox_name'])) { ... }
Form controls (with the exception of file inputs, and with some special rules for image inputs) always submit strings. There is no concept of a boolean in a query string or a form encoded POST body.
The id is irrelevant — only the name and value matter (at least as far as PHP is concerned).
Since you haven't given them values they will, IIRC, default to on so if you are doing a comparison you should look for that. Looking with isset is simpler though. This is somewhat beside the point though, since your example gives them all the same name and value, so you can't differentiate between them.
Additionally, due to an oddity of the PHP form data parser, you have to end the with [] if you want multiple elements with the same name.
You probably want to do something like this:
<label>
<input name="Language[]" type="checkbox" id="aa" checked="checked" value="One" />
One</label>
<label>
<input name="Language[]" type="checkbox" id="bb" value="Two" />Two</label>
<label>
<input type="checkbox" name="Language[]" id="cc" value="Three" />Three</label>
Important: Note the addition of values and the change in name.
Then in PHP $_GET['Language'] will be an Array of the values of the checked checkboxes, which you can loop over.
Try isset()
I think your HTML code should be like
<label>
<input name="Language[]" type="checkbox" id="aa" checked="checked" value ="1" />One
</label>
<label>
<input name="Language[]" type="checkbox" id="bb" value ="2" />Two
</label>
<label>
<input name="Language[]" type="checkbox" id="cc" value ="3" />Three
</label>
and then by using something like
$count = count($_GET["Language"]); you can count the number of checkboxes checked.
Or do
$arr = $_GET["Language"]; //$arr is an array that contains the values of the checked checkboxes
Then you can foreach over the array
foreach( $arr as $item)
{
echo $item . "</br>"; /* Will print 1,2 and 3 (mind newlines)*/
}
In my PHP I got it from $_POST['checkbox_name'], and I found that the variable had the value on when the box was checked (i.e. it existed even if the checkbox was clear).