I am using Jquery UI Selectable. The user has the option to dynamically add new list items to the original setup.
I would like to include a 'clear' button that will give the user the ability to clear each individual item they created by clicking on an X input submit (img).
HTML (php)
if ($this->session->userdata('inactivefilter') == true) {
$inactivefilter = $this->session->userdata('inactivefilter');
$i=0;
foreach ($inactivefilter as $filter)
{
$filterdash = implode('-', explode(' ', $filter));
echo "<li class='ui-state-default' id='$filterdash'>$filter</li>";
echo "<div id=clear>
<form method='POST' action='".base_url()."main/clear_filter'>
<input type='image' name='filtervalue' value='$i' src='".base_url()."img/board/icons/clear.png'></input>
</form>
</div>";
$i++;
}
}
This is where the list is created. specifically the clear_filter action form.
Clear_filter currently 'attempts' to grab the value of '$i' but I don't know how to pass that correctly.
here is the controller:
public function clear_filter()
{
$i = $_POST['filtervalue'];
$this->thread_model->clear_filter($i);
}
I'll omit the clear_filter model due to its irrelevance to the problem.
Essentially, I just need $i to be picked up based on whatever value is clicked on in the dynamic form on the actual page.
Any help would be appreciated!
Well, it seems like I just had things a bit backwards.
The code was more or less correct.
For Codeigniter, you catch the passed input value=$i by using the name ="filtervalue"
Change the controller code to :
$i = $this->input->post('filtervalue');
and $i is set to whatever value was clicked on.
Related
I'm currently working on a personal content management system project, but I've run into a problem.
<ul>
<?php
if(!$result) { //Check for result
die("You have no pages ☹ Why not create one?");
} else {
while ($pages = mysqli_fetch_assoc($result)) { //Loop through results
?>
<li class="triple"><span><?php echo $pages["title"]?></span><span><?php echo $pages["visible"] ?><span /><form action = "editPage.php" method="post"><input type="submit" value="Edit Page" name="<?php $pages["title"];?>" /></form></li> //Create li elements for each result that gets created
<?php
};
};
?>
</ul>
Basically I'm using a query to results from a MySQL table and make a list of pages, the problem I've run into is that on the end form what I want to happen is I want a session variable to be stored saying which page is going to be edited, but I can't use $_POST in the form at the end to get the name because obviously the name is automatically generated from the table. Each person who uses it would have a different name for a page so I can't just get one name e.g. $_POST['homepage'].
If anyone can offer any advice on how to solve my problem or even how to come up with a better solution to store which page will be edited as it goes onto another page (editPage.php) that would be great.
Use $_SESSION[] to store the data for your $page arrays and access it again on editPage.php. You will need to make sure you call start_session(); on both pages though for it to work as expected. Since you're creating multiple forms and don't know which one will be submitted at the time PHP is running you would need to store all the pages in your $_SESSION and then iterate through them to check for the one which was selected in editPage.php:
$_SESSION['pages'] = array();
while ($page = mysqli_fetch_assoc($result)) {
$_SESSION['pages'][] = $page;
echo "<li class=\"triple\">
<span>".$page["title"]."</span>
<span>".$page["visible"]."</span>
<form action=\"editPage.php\" method=\"post\">
<input type=\"hidden\" name=\"pageID\" value=\"".$page['id']."\">
<input type=\"submit\" value=\"Edit Page\">
</form>
</li>";
}
Then in editPage.php
foreach($_SESSION['pages'] as $page){
if($page['id'] == $_POST['pageID']){ $editpage = $page; break; }
}
// do stuff with $editpage data
Another option would be to use serialize($page) and send the array with the form data in a hidden input element.
<input type='hidden' name='data' value='<?php echo serialize($page); ?>'>
Then you can use $editpage = unserialize($_POST['data']); to turn it back into an array in editPage.php.
I have a MySQL database with auto-increment column "line numbers." In the form that is being submitted to the script, there are check boxes. I don't know how many check boxes there are, because each Customer has a different number of services that they're allowed to access. When the check box is clicked, they've used a service and the integer in column Available for that row needs to decrease by one. Sometimes, the user can say that multiple services were used and more than one row needs to be affected.
Where I'm becoming stuck is on two things: how the check boxes are named, and if I name them by the line number, how to access them with PHP.
while($cell = mysqli_fetch_array($service_details_query)) {
echo "</br>";
echo "<input type='checkbox' name='" . $cell['line_item'] . "'>";
}
The above code is how I'm making the check box. Probably the biggest part of the question is how I could better name it so that I can predict what names to look for ($_POST[name]) when the form is submitted (instead of a random number).
The other part I'm getting stuck on is, if I do decide to keep the naming strategy, how to fetch it. What I've thought of is to use a loop to extract the true/false data that's carried, but I don't know how to execute that. Sure, I can write a for or while loop, but I don't know how to extract the name of the object.
Is there any way I could carry extra data to a PHP script, other than the name?
Is there a better way I could name the check box so that I'm not stuck having to figure out a complicated way of finding the data, retrieving the name, etc.
I'm sort of a beginner when it comes to PHP. I know how to get my way around with for loops, while loops, basic commands such as echo... but I'm really lacking
while($cell = mysqli_fetch_array($service_details_query)) {
echo "</br>";
echo "<input type='checkbox' name='checkboxname[]' value ='".$cell['line_item']."'>";
}
It should do a $_POST array with the name checkboxname inside that array, you find the values.
You can find it threating $_POST['checkboxname'] as an array.
Try name it like: "checkbox_" . $cell['line_item'] so you can do something like this:
foreach($_POST as $name => $value)
{
if(substr($name, 9) == "checkbox_"){
//USE the value
}
}
or you could name like this:
echo "<input type='checkbox' name='services[]' value='" . $cell['id'] . "'>";
and get it as an array like this: $services = $_POST["services"];
Alright. Since you wanted to be able to add extra data, I thought I'd start over complicating stuff a lot! But it does the job. Explanation can be found in the codes comments.
First the HTML and Javascript part:
<!DOCTYPE HTML>
<html>
<head>
<script type="text/javascript">
// First we need to get our form
var myForm = document.getElementById("myForm");
// Next we're adding an event listener to the form submit so we can catch it
// and use a function to do some stuff before sending it over to the php file
myForm.addEventListener("submit", function(event){
// Now we need to temporarely stop the form from submitting
event.preventDefault();
// Next we need to get all our checkboxes
var checkBoxes = document.getElementsByClassName("myCheckbox");
// Now we need some arrays for all the data we're going to send over
// Basicly you make one for each data attribute
var lineNr = [];
var someThing = [];
// Lets loop through all checkboxes
for (var i=0; i<checkBoxes.length; i++) {
// Catch the ones checked
if (checkBoxes[i].checked) {
// Push the data attribute values to the arrays
lineNr.push(checkBoxes[i].dataset.linenr);
someThing.push(checkBoxes[i].dataset.something);
}
}
// Now we to JSON encode these arrays to send them over to PHP
var jsonLineNr = JSON.stringify(lineNr);
var jsonSomeThing = JSON.stringify(someThing);
// Since we cannot directly add these variables to our form submit,
// unless we use Ajax, we need to add them to our form in some
// hidden fields
myForm.innerHTML += "<input type='hidden' name='jsonLineNrs' value='"+ jsonLineNr +"' />";
myForm.innerHTML += "<input type='hidden' name='jsonSomeThings' value='"+ jsonSomeThing +"' />";
// All done, now we submit our form
myForm.submit();
}
</script>
</head>
<body>
<form method="POST" action="your_php_file.php" id="myForm" accept-charset="utf-8">
<input type="checkbox" class="myCheckbox" data-linenr="1" data-something="value1" />
<br />
<input type="checkbox" class="myCheckbox" data-linenr="2" data-something="value2" />
<br />
<input type="checkbox" class="myCheckbox" data-linenr="3" data-something="value3" />
<br />
<input type="submit" value="Submit" />
</form>
</body>
</form>
Next the PHP part:
<?php
// First we need to decode the JSON strings so we can use them
$jsonLineNrs = json_decode($_POST['jsonLineNrs']);
$jsonSomeThings = json_decode($_POST['jsonSomeThings']);
// Now both of those variables are arrays that contain all the data you wanted
// You can loop each of them to do stuff like
foreach($jsonLineNrs as $jsonLineNr){
echo $jsonLineNr; //Will echo out each line number
}
// Or if you want to loop through both simultaneously so you can
// keep each checked box data values together:
for($i=0; $i<count($jsonLineNrs)-1; $i++) {
echo $jsonLineNrs[$i].' - '.$jsonSomeThings[$i];
}
?>
Now before I finish this answer, one last warning: I didn't sanitize the user input in the Javascript part. It would make this answer even a lot more complicated and way to long. Be sure to do this, as you can NEVER EVER trust user input! Even if it's only checkboxes, POST data can be changed before it's submitted!
I would prefix the names depending on context, for example:
<input type='checkbox' name='service_" . $cell['line_item'] . "'>"
This way, if the checkbox represents a service, you could identify it by the prefix.
Looking for some help with checkbox(switch type) that I have put in PHP.
These checkbox are created dynamically with data received from a MySQL Database.
The checkbox is loaded on the page depending on the condition of the checkbox placed on the database.
Now, I need help to build a code that perform some action like writing back into another database table everytime this checkbox is actioned; i.e. its inital state can be :checked or left blank(unchecked) and each of these checkbox have an ID or value on them from database. But any action that takes place either from blank to :checked or from :checked to blank, it needs to trigger an action for that particular actioned checkbox only.
Would need help on this as PHP please.
My Code Looks like this for a checkbox:
echo "<input type='checkbox' class='input-swtoggle' name='switch-box' ";
$lightStatus = $row->light_status;
if ($lightStatus == "1") {
echo "checked>";
}
else{
echo ">";
}
PS: I did try alot Googling and on Stackoverflow, but none of them are helping for the above condition.
You can bind click event to the checkbox using .on()
$(function(){
$(document).on('click',"input:checkbox.input-swtoggle",function() {
alert($(this).is(':checked'));
});
});
<?php
// HTML code
$checkced = ($row->light_status == '1') ? 'checked="checked"' : '';
echo '<input type="checkbox" class="input-swtoggle" name="switchbox[]"' . $checkced . '/>';
// Code after form posted:
if (! empty($_POST['switchbox'])) {
foreach ($_POST['switchbox'] as $switch) {
// Apply your logic here.
}
}
?>
I am trying to create a php file that would scan a directory, make a list of dynamic radio buttons and have the user select one and submit it and it shall pass it into another php file that would send it off, but I am having trouble with the submit button. Was wondering if I could get some answers, been looking around the net and haven't been able to find anything.
Here is my code:
<?php
ini_set('display_errors',true);
//Scan directory (ripped from another site)
$directory = opendir("download");
while($entry = readdir($directory)) {
$dirArray[] = $entry;
}
closedir($directory);
$indexCount = count($dirArray);
sort($dirArray);
//Make the Radio Button list
$RList = "";
for($i=2; $i<count($dirArray); $i++) {
$value = $dirArray[$i];
$RList .= "<input type=\"radio\" name=\"Files\" value=".$value." />".$value."<br />";
}
//Submit button
$RButton = '<input type="button" value="Submit"
onclick="location.href=\'http://localhost/appClient/load.php?file='.$value.'\'">';
echo $RList.$RButton;
#echo $_POST["Files"];
?>
Thanks
It looks like you're passing $value to the onclick event. Since that's outside of the PHP loop, it will end up always being the last $value.
To fix this, use javascript to get the selected value from the radio and append that to the onclick redirect.
Better yet, your load.php file should just simple check the 'Files' key in your $_POST and use that, instead of using GET. That's the point of submitting the radio button, after all.
I don't see the <form> tag, try to add it because the all buttons and inputs must be within the <form>
Does your script is calling the file load.php already or the button just does not work?
Hello i want any checkbox i am gonna check, to stay checked after pagination.
here is the code:
foreach($test as $string){
$queryForArray = "SELECT p_fname,p_id FROM personnel WHERE p_id = " .$string["p_id"]. " ;" ;
$resultForArray = mysql_query($queryForArray, $con);
$rowfForArray = mysql_fetch_array($resultForArray);
?>
<td id="<?php echo $rowfForArray["p_id"]?>" onclick="setStyles(this.id)" ><?php echo $rowfForArray["p_fname"]?></td>
<td><input id="<?php echo $rowfForArray["p_id"]?>" class="remember_cb" type="checkbox" name="how_hear[]" value="<?php echo $rowfForArray["p_fname"]?>"
<?php foreach($_POST['how_hear'] as $_SESSION){echo (( $rowfForArray["p_fname"] == $_SESSION) ? ('checked="checked"') : ('')); } ?>/></td>
</tr>
<tr>
I am geting the data from a search result i have in the same page , and then i have each result with a checkbox , so that i can check the "persons" i need for $_Session use.
The only think i want is the checkbox's to stay checked after pagination and before i submit the form!(if needed i can post the pagination code, but he is 100% correct)
In the checkbox tag use the ternary operation, without that foreach inside him:
<input [...] value="<?php echo $rowfForArray["p_fname"]?>" <?php $rowfForArray["valueToCompareIfTrue"] ? "checked='checked'" : ''; ?> />
because the input already is inside of 'for' loop, then each time of the loop will create a new checkbox wich will verify if need to being check or not.
I hope I have helped you.
A few ways to tackle this:
(Straight up PHP): Each page needs to be a seperate form then, and your "next" button/link needs to submit the form everytime they click next. The submit data should then get pushed to your $_SESSION var. The data can then be extracted and used to repopulate the form if they navigate backwards as well. Just takes some clever usage of setting the URL with the proper $_GET variables for the form.
(HTML5): This will rely more on JavaScript, but basically you get rid of pagination and then just break the entire data set into div chunks which you can hide/reveal with JavaScript+CSS or use a library like JQuery.
(AJAX): Add event listeners to the checkboxes so that when a button is checked an asynchronous call is made back to a PHP script and the $_SESSION variable is updated accordingly. Again, this one depends on how comfortable you are with JavaScript.
Just keep in mind that PHP = ServerSide & JavaScript = ClientSide. While you can hack some PHP together to handle "clientside" stuff, its usually ugly and convoluted...
I did it without touching the database...
The checkbox fields are a php collection "cbgroup[]".
I then made a hidden text box with all the values which equal the primary keys of the selectable items mirroring the checkboxes. This way, I can iterate through the fake checkboxes on the current page and uncheck the checkboxes by ID that exist on the current page only. If the user does a search of items and the table changes, the selectable items remain! (until they destroy the session)
I POST the pagination instead of GET.
After the user selects their items, the page is POSTED and I read in the hidden text field for all the checkbox IDs that exist on that current page. Because PhP only tells you which ones are checked from the actual checkboxes, I clear only the ones from the session array that exist on the POSTED page from this text box value. So, if the user selected items ID 2, 4, 5 previously, but the current page has IDs 7,19, and 22, only 7, 19, and 22 are cleared from the SESSION array.
I then repopulate the array with any previously checked items 7, 19, or 22 (if checked) and append it to the SESSION array along with 2, 4, and 5 (if checked)
After they page through all the items and made their final selection, I then post their final selections to the database. This way, they can venture off to other pages, perhaps even adding an item to the dB, return to the item selection page and all their selections are still intact! Without writing to the database in some temp table every page iteration!
First, go through all the checkboxes and clear the array of these values
This will only clear the checkboxes from the current page, not any previously checked items from any other page.
if (array_key_exists('currentids', $_POST)) {
$currentids = $_POST['currentids'];
if (isset($_SESSION['materials']) ) {
if ($_SESSION['materials'] != "") {
$text = $_SESSION['materials'];
$delimiter=',';
$itemList = explode($delimiter, $text);
$removeItems = explode($delimiter, $currentids);
foreach ($removeItems as $key => $del_val) {
//echo "<br>del_val: ".$del_val." - key: ".$key."<br>";
// Rip through all possibilities of Item IDs from the current page
if(($key = array_search($del_val, $itemList)) !== false) {
unset($itemList[$key]);
//echo "<br>removed ".$del_val;
}
// If you know you only have one line to remove, you can decomment the next line, to stop looping
//break;
}
// Leaves the previous paged screen's selections intact
$newSessionItems = implode(",", $itemList);
$_SESSION['materials'] = $newSessionItems;
}
}
}
Now that we have the previous screens' checked values and have cleared the current checkboxes from the SESSION array, let's now write in what the user selected, because they could have UNselected something, or all.
Check which checkboxes were checked
if (array_key_exists('cbgroup', $_POST)) {
if(sizeof($_POST['cbgroup'])) {
$materials = $_POST['cbgroup'];
$N = count($materials);
for($i=0; $i < $N; $i++)
{
$sessionval = ",".$materials[$i];
$_SESSION['materials'] = $_SESSION['materials'].$sessionval;
}
} //end size of
} // key exists
Now we have all the items that could possibly be checked, but there may be duplicates because the user may have paged back and forth
This reads the entire collection of IDs and removes duplicates, if there are any.
if (isset($_SESSION['materials']) ) {
if ($_SESSION['materials'] != "") {
$text = $_SESSION['materials'];
$delimiter=',';
$itemList = explode($delimiter, $text);
$filtered = array();
foreach ($itemList as $key => $value){
if(in_array($value, $filtered)){
continue;
}
array_push($filtered, $value);
}
$uniqueitemschecked = count($filtered);
$_SESSION['materials'] = null;
for($i=0; $i < $uniqueitemschecked; $i++) {
$_SESSION['materials'] = $_SESSION['materials'].",".$filtered[$i];
}
}
}
$_SESSION['materials'] is a collection of all the checkboxes that the user selected (on every paged screen) and contains the primary_key values from the database table. Now all you need to do is rip through the SESSION collection and read\write to the materials table (or whatever) and select/update by primary_key
Typical form...
<form name="materials_form" method="post" action="thispage.php">
Need this somewhere: tracks the current page, and so when you post, it goes to the right page back or forth
<input id="_page" name="page" value="<?php echo $page ?> ">
if ($page < $counter - 1)
$pagination.= " next »";
else
$pagination.= "<span class=\"disabled\"> next »</span>";
$pagination.= "</div>\n";
Read from your database and populate your table
When you build the form, use something like this to apply the "checked" value of it equals one in the SESSION array
echo "<input type='checkbox' name='cbgroup[]' value='$row[0]'";
if (isset($filtered)) {
$uniqueitemschecked = count($filtered);
for($i=0; $i < $uniqueitemschecked; $i++) {
if ($row[0] == $filtered[$i]) {
echo " checked ";
}
}
}
While you're building the HTML table in the WHILE loop... use this. It will append all the select IDs to a comma separated text value after the loop
...
$allcheckboxids = "";
while ($row = $result->fetch_row()) {
$allcheckboxids = $allcheckboxids.$row[0].",";
...
}
After the loop, write out the hidden text field
echo "<input type='hidden' name='currentids' value='$allcheckboxids'>";