Develop Reference

Pass PHP variable with button to popup via javascript?

I have a table created dynamically with PHP to display requests. In each row of my table there is a button to open a popup. The ID of each request should be transferred to this popup in order to read out all data.
How can I make it so that in a dynamic table (all button names are the same) each button is differentiated, or recognized which button I pressed? And how can I pass the variable from PHP to the popup via javascript?
I would appreciate any help, I've been trying for days now, but I'm not getting any results.
Here's the table view
Popup window
<table id="meineTabelle" data-role="table" class="content"
data-mode="columntoggle" data-column-btn-text="Spalten">
<thead>
<div class="tablehead">
<tr>
<th class="thblackborder" data-priority=""></th>
<th class="thblackborder" data-priority="">1.Projektant</th>
<th class="thblackborder" data-priority=""></th>
<th class="thblackborder" data-priority="">2.Projektant</th>
<th class="thblackborder" data-priority=""></th>
<th class="thblackborder" data-priority="">3.Projektant</th>
<th class="thblackborder" data-priority=""></th>
<th class="thblackborder" data-priority="">4.Projektant</th>
<th class="thblackborder" data-priority=""></th>
<tr>
<th class="">ID</th>
<th class="">Vorname</th>
<th class="">Nachname</th>
<th class="">Vorname</th>
<th class="">Nachname</th>
<th class="">Vorname</th>
<th class="">Nachname</th>
<th class="">Vorname</th>
<th class="">Nachname</th>
<th class="">Titel</th>
<th class="">Standort</th>
<th class="">Klasse</th>
<th class="">Beginn</th>
<th class="">Abgabe</th>
<th class="">Beschreibung</th>
<th class="">Status</th>
<th class="">Erstellt</th>
</tr>
</tr>
</div>
</thead>
<tbody>
<?php
foreach ($Ausgabe as $row) {
?>
<form>
<tr onclick="dialogOeffnen('loslegen-dialog')">
<td>
<?php echo $row["ID"] . "<br>"; ?>
</td>
<td>
<?php echo $row["Vorname"] . "<br>"; ?>
</td>
<td>
<?php echo $row["Nachname"] . "<br>"; ?>
</td>
<td>
<?php echo $row["Vorname2"] . "<br>"; ?>
</td>
<td>
<?php echo $row["Nachname2"] . "<br>"; ?>
</td>
<td>
<?php echo $row["Vorname3"] . "<br>"; ?>
</td>
<td>
<?php echo $row["Nachname3"] . "<br>"; ?>
</td>
<td>
<?php echo $row["Vorname4"] . "<br>"; ?>
</td>
<td>
<?php echo $row["Nachname4"] . "<br>"; ?>
</td>
<td>
<?php echo $row["Titel"] . "<br>"; ?>
</td>
<td>
<?php echo $row["Standort"] . "<br>"; ?>
</td>
<td>
<?php echo $row["Klasse"] . "<br>"; ?>
</td>
<td>
<?php echo $row["Beginn"] . "<br>"; ?>
</td>
<td>
<?php echo $row["Abgabe"] . "<br>"; ?>
</td>
<td>
<center>Link</center>
</td>
<td>
<?php echo $row["Genehmigt"] . "<br>"; ?>
</td>
<td>
<?php echo $row["Erstellt"] . "<br>"; ?>
</td>
<td>
<input type="button" value="" onclick="">
</td>
</tr>
</form>
<?php
}
?>
</tbody>
</table>
Popup HTML
<div id="body-overlay"></div>
<div class="dialog" id="loslegen-dialog">
<a href="#" role="button" class="dialog-schließen-button" onclick="dialogSchliessen('loslegen-dialog')">
<i class="fas fa-times"></i>
</a>
<div class="textarea">
<h1><?php echo $row['ID'] ?></h1>
<textarea placeholder="Platz für Bemerkungen" name="Bemerkungen" id="" cols="30" rows="10"></textarea>
</div>
<form classaction="">
<div class="txt_field">
<input type="text" name="email" value="<?= $fetch_profile['email'];?>" required>
<span></span>
<label>E-Mail</label>
</div>
<div class="txt_field">
<input type="text" name="password" required>
<span></span>
<label>Passwort</label>
</div>
<input type="submit" value="Bestätigen" name="submit">
<div class="signup_link">
</form>
</div>
<script src="dialoge.js">
</script>
<script>
</script>
</body>
</html>
</body>
</html>
dialoge.js
function dialogOeffnen(dialogId) {
document.getElementById(dialogId).classList.add("sichtbar");
document.getElementById("body-overlay").classList.add("sichtbar");
}
function dialogSchliessen(dialogId) {
document.getElementById(dialogId).classList.remove("sichtbar");
document.getElementById("body-overlay").classList.remove("sichtbar");
}
If I echo out $row["ID"] for sure it shows me the last ID in my table

First, let's clean up your HTML a bit. Tables have predetermined structures. That means that a only some elements can be used as a parent or child. For example, you can't nest a <tr> inside a another <tr>. Learn about the basics of tables.
<table id="meineTabelle" data-role="table" class="content" data-mode="columntoggle" data-column-btn-text="Spalten">
<thead>
<tr>
<th>ID</th>
<th>Vorname</th>
<th>Nachname</th>
<th>Vorname</th>
<th>Nachname</th>
<th>Vorname</th>
<th>Nachname</th>
<th>Vorname</th>
<th>Nachname</th>
<th>Titel</th>
<th>Standort</th>
<th>Klasse</th>
<th>Beginn</th>
<th>Abgabe</th>
<th>Beschreibung</th>
<th>Status</th>
<th>Erstellt</th>
</tr>
</thead>
<tbody>
<?php foreach ($Ausgabe as $row) : ?>
<tr>
<td><?= $row["ID"] ?></td>
<td><?= $row["Vorname"] ?></td>
<td><?= $row["Nachname"] ?></td>
<td><?= $row["Vorname2"] ?></td>
<td><?= $row["Nachname2"] ?></td>
<td><?= $row["Vorname3"] ?></td>
<td><?= $row["Nachname3"] ?></td>
<td><?= $row["Vorname4"] ?></td>
<td><?= $row["Nachname4"] ?></td>
<td><?= $row["Titel"] ?></td>
<td><?= $row["Standort"] ?></td>
<td><?= $row["Klasse"] ?></td>
<td><?= $row["Beginn"] ?></td>
<td><?= $row["Abgabe"] ?></td>
<td>Link</td>
<td><?= $row["Genehmigt"] ?></td>
<td><?= $row["Erstellt"] ?></td>
<td>
<button class="dialog-open" type="button" value="<?= $row["ID"] ?>">Button</button>
</td>
</tr>
<?php endforeach; ?>
</tbody>
</table>
I've changed your button to a <button> element because it's a bit more flexible to use. Output the ID of the row in the value attribute. Give the button a class value to identify it with. We'll need this for JS.
Select the table in JavaScript. Listen for click events that happen within the table. The code below checks if the clicked element (event.target) is a button with the class we gave it. If it is, then we'll read the value from button and pass it to the open modal function.
const table = document.querySelector('#meinTabelle');
table.addEventListener('click', event => {
if (event.target.matches('.dialog-open') {
const dialogId = event.target.value;
dialogOeffnen(dialogId);
}
});
function dialogOeffnen(dialogId) {
document.getElementById(dialogId).classList.add("sichtbar");
document.getElementById("body-overlay").classList.add("sichtbar");
}

How to delete from json table?

I have a table like below:
<table class="table">
<thead class="thead-dark">
<tr>
<th scope="col">ID</th>
<th scope="col">Nazwa</th>
<th scope="col">Cena</th>
<th scope="col">Kupujący</th>
<th scope="col"> </th>
</tr>
</thead>
<tbody>
<?php foreach($data as $key => $value): ?>
<tr>
<td><?php echo $value['id']; ?></td>
<td><?php echo $value['name']; ?></td>
<td><?php echo $value['price']; ?></td>
<td><?php echo $value['buyer']; ?></td>
<td><button type="button" name="button2" >Usuń</button></td>
</tr>
<?php endforeach; ?>
</tbody>
</table>
how to delete item from this list via clicking on the button in last column of the table?
my php:
$jsonData = file_get_contents("data.json");
$data = json_decode($jsonData, true);
thanks for any help, I don't know how to get value by button clicking :/

It seems that your data is gotten from a file, so to get it done you need to go over all these steps in the same php script:
Get data from this file
Parse data with json_decode
Remove an item using unset($data['id'])
Save new data in the same file
Here is an example:
$jsonData = file_get_contents("data.json");
$data = json_decode($jsonData, true);
// here we go
if(isset($_POST['item_key']) && !empty($_POST['item_key'])) {
$data = array_values($data);
$i=0;
foreach($data as $element) {
//check if it's the right item
if(intval($_POST['item_key']) == $element['id']){ // intval only if you are sure id passed in POST[item_key] always integer
unset($data[$i]);
}
$i++;
}
file_put_contents('data.json', json_encode(array_values($data)));
}
$_POST['item_key'] will come after submiting the form in the html, see below.
In your html code, you will need to add the following:
<table class="table">
<thead class="thead-dark">
<tr>
<th scope="col">ID</th>
<th scope="col">Nazwa</th>
<th scope="col">Cena</th>
<th scope="col">Kupujący</th>
<th scope="col"></th>
</tr>
</thead>
<tbody>
<?php foreach($data as $key =>
$value): ?>
<tr>
<td><?php echo $value['id']; ?></td>
<td><?php echo $value['name']; ?></td>
<td><?php echo $value['price']; ?></td>
<td><?php echo $value['buyer']; ?></td>
<td>
<!-- action="#" means you will stay in the same script after submit -->
<form action="#" method="POST">
<input
hidden
type="text"
name="item_key"
value="<?php echo $value['id'];?>"
/>
<input type="submit" value="Remove" />
</form>
</td>
</tr>
<?php endforeach; ?>
</tbody>
</table>
UPDATE
Used unset with array_values after json_decode
Removed header(refre..) since the refresh will be done by form submit to same script

Auto Payslip Printing using Javascript, PHP and MySqli for 500 employees

I am working on a payroll project and I am coding with php,html,js and mysql on xampp server. I have a salary sheet code which needs to be printed in pdf format for each employee with their names as the pdf filename.
on running the php page the js code triggers automatically and generates a pdf file with the filename as the employee name alongwith the employee salary data.
Now I need to generate all the employee payslips together in this format but automatically or maybe by clicking a single button.
I have done this project in vb6,ms-access with success but I am not well versed in javascript and now I am stuck here.
Any Help will be appreciated
<HTML>
<HEAD>
<TITLE>Salary Sheet</TITLE>
</HEAD>
<BODY>
<?php
include "connect.php";
$mysql = "SELECT * FROM emp_ndata LIMIT 0,1";
$myquery = mysqli_query($con, $mysql);
if(! $myquery ) {
die('Could not get data: ' . mysql_error());
}
$row = mysqli_fetch_array($myquery, MYSQLI_ASSOC);
?>
<div id="pdata">
<table class="table_for_showdata table_for_showdata_small">
<tr>
<th colspan="2">
Salary Sheet of <b class="table_for_showdata_lg">
<?php echo $row['Emp_Name']; ?></b> : <?php echo $row ['Emp_psmonth']; ?> , <?php echo $row ['Emp_psyear']; ?>
</th>
</tr>
<tr>
<td>Emp-Code</td>
<td><?php echo $row['Emp_ID']; ?></td>
</tr>
<tr>
<td>Designation</td>
<td><?php echo $row['Emp_Designation']; ?></td>
</tr>
<tr>
<th colspan="2">EARNINGS</th>
</tr>
<tr>
<td >Basic</td>
<td><?php echo round($row ['Emp_Basic']).".00"; ?></td>
</tr>
<tr>
<td >House Rent Allowance</td>
<td><?php echo round($row ['Emp_HRA']).".00"; ?></td>
</tr>
<tr>
<th >DEDUCTIONS</th>
<th> </th>
</tr>
<tr>
<td >Professional Tax</td>
<td><?php echo $row ['Emp_Proffessional_Tax'].".00"; ?></td>
</tr>
<tr>
<td >Provident Fund</td>
<td><?php echo $row ['Emp_Provident_Fund'].".00"; ?></td>
</tr>
<tr>
<th > </th>
<th> </th>
</tr>
<tr>
<td class="tab_head_blue"><b>TOTAL PAY : </td>
<td style="font-size:18px"><b>Rs.<?php echo $row ['Emp_Total_Pay'].".00"; ?></b></td>
</tr>
</table>
</div>
<script type="text/javascript">
function printDiv() {
var divToPrint = document.getElementById('pdata');
var popupWin = window.open('', '_blank', 'width=1100,height=400');
popupWin.document.open();
document.title = "<?php echo $row['Emp_Name']; ?>";
popupWin.document.write('<html><head><title>' + document.title + '</title>');
popupWin.document.write('<html><body onload="window.print()">' + divToPrint.innerHTML + '</html>');
popupWin.document.close();
}
</script>
<script>
printDiv();
</script>
</BODY></HTML>

Using AJAX to Send Data on Button Click

I have a table with multiple columns (index.php). One column is a checkbox. Whenever the checkbox is checked, it displays another column where you can select a quantity.
I want to be able to hit a button called "Add to Order" and have it use AJAX to add any selected rows to the index-order.php page. After all selections have been made, I want to be able to click the "Checkout" button and have it take me to the index-order.php page where it should be displaying all of the added selections in a table.
I know how to navigate to the index-order.php page so my main question is how can I add the selected rows to the index-order.php page by using ajax when pressing the button?
Index.php code:
<form name="form1" action="index-order.php">
<section id="checkout-btn">
<button type="submit" id="checkout" name="order">Checkout</button>
</section>
</form>
<form name="form2" method="POST" action="index-order.php">
<section id="addToOrder">
<button type="submit" class="order" id="order" name="order" value="AddToOrder">Add to Order</button>
</section>
<br>
<table id="merchTable" cellspacing="5" class="sortable">
<thead>
<tr class="ui-widget-header">
<th class="sorttable_nosort"></th>
<th class="sorttable_nosort">Loc</th>
<th class="merchRow">Report Code</th>
<th class="merchRow">SKU</th>
<th class="merchRow">Special ID</th>
<th class="merchRow">Description</th>
<th class="merchRow">Quantity</th>
<th class="sorttable_nosort">Unit</th>
<th style="display: none;" class="num">Quantity #</th>
</tr>
</thead>
<tbody>
<?php foreach ($dbh->query($query) as $row) {?>
<tr>
<td class="ui-widget-content"><input type="checkbox" class="check" name="check"></td>
<td name="rows[0][0][loc]" class="loc ui-widget-content" id="loc-<?php echo intval ($row['Loc'])?>"><?php echo $row['Loc'];?></td>
<td name="rows[0][0][rp-code]" class="rp-code ui-widget-content" align="center" id="rp-code-<?php echo intval ($row['Rp-Code'])?>"><?php echo $row['Rp-Code'];?></td>
<td name="rows[0][0][sku]" class="sku ui-widget-content" id="sku-<?php echo intval ($row['SKU'])?>"><?php echo $row['SKU'];?></td>
<td name="rows[0][0][special-id]" class="special-id ui-widget-content" align="center" id="special-id-<?php echo intval ($row['Special-ID'])?>"><?php echo $row['Special-ID'];?></td>
<td name="rows[0][0][description]" class="description ui-widget-content" id="description-<?php echo intval ($row['Description'])?>"><?php echo $row['Description'];?></td>
<td name="rows[0][0][quantity]" class="quantity ui-widget-content" data-quantity="<?php echo $row['Quantity'] ?>" align="center" id="quantity-<?php echo intval ($row['Quantity'])?>"><?php echo $row['Quantity'];?></td>
<td name="rows[0][0][unit]" class="unit ui-widget-content" id="unit-<?php echo intval ($row['Unit'])?>"><?php echo $row['Unit'];?></td>
<td name="rows[0][0][quant]" style="display: none;" class="quantity_num ui-widget-content"><input type="textbox" style="width: 100px;" class="spinner" name="value" id="test"></td>
</tr>
<?php } ?>
</tbody>
</table>
</form>
<div id="log"></div>
Index-order.php:
<?php if(isset($_POST['rows'])): ?>
<table cellspacing="20">
<tr align="center">
<th>Loc</th>
<th>Report Code</th>
<th>SKU</th>
<th>Special ID</th>
<th>Description</th>
<th>Quantity</th>
<th>Unit</th>
<th>Quantity #</th>
</tr>
<?php
foreach($_POST['rows'][0] as $row):
?>
<tr align="center">
<td><?php echo $row['loc']; ?></td>
<td><?php echo $row['rp-code']; ?></td>
<td><?php echo $row['sku']; ?></td>
<td><?php echo $row['special-id']; ?></td>
<td><?php echo $row['description']; ?></td>
<td><?php echo $row['quantity']; ?></td>
<td><?php echo $row['unit']; ?></td>
<td><?php echo $row['quant']; ?></td>
</tr>
<?php
endforeach;
?>
</table>
<?php endif; ?>
JavaScript:
$(function () {
$("#order").click(function() {
//reset the logger
$('#log').empty();
$('#merchTable input:checkbox:checked').each(function() {
//for each checked checkbox, iterate through its parent's siblings
var array = $(this).parent().siblings().map(function() {
return $(this).text().trim();
}).get();
console.log(array);
//to print the value of array
$('#log').append(JSON.stringify(array))
var request = $.ajax({
type: 'post',
url: 'index-order.php',
data: array,
success: function(){
alert('success');
},
error: function(){
alert('failure');
}
});
})
});
});

To pass data from one page to another using php you will have to use a session.
So in your ajax call just save your data into the session like so:
add-to-cart.php
session_start();
if (!isset($_SESSION['shopping_cart'])) {
$_SESSION['shopping_cart'] = [];
} else {
$_SESSION['shopping_cart'][] = [
'id' => $_POST['item_id'],
'amount' => $_POST['amount']
];
}
If you then click your checkout button and navigate via a page reload to your index-order.php, you could then access the data via the same session index.
session_start();
if (isset($_SESSION['shopping_cart'])) {
// display your data
} else {
echo "Your shopping cart is empty.";
}

Send Table Row Data via AJAX Based on Checkbox Checked

I have a table with multiple columns (index.php). One column is a checkbox. Whenever the checkbox is checked, it displays another column where you can select a quantity.
I want to then be able to hit a button called "Add to Order" and have it use AJAX to add any selected rows to the index-order.php page. After all selections have been made, I want to be able to click the "Checkout" button and have it take me to the index-order.php page where it should display all of the added selections in a table.
I know how to navigate to the index-order.php page so my main question is how can I add the selected rows to the page while using ajax and staying on the current page when doing so?
Index.php code:
<form name="form1" action="index-order.php">
<section id="checkout-btn">
<button type="submit" id="checkout" name="order">Checkout</button>
</section>
</form>
<form name="form2" method="POST" action="index-order.php">
<section id="addToOrder">
<button type="submit" class="order" id="order" name="order" value="AddToOrder">Add to Order</button>
</section>
<br>
<div id="my-div2" class="ui-widget">
<div class="ui-widget">
<table id="merchTable" cellspacing="5" class="sortable">
<thead>
<tr class="ui-widget-header">
<th class="sorttable_nosort"></th>
<th class="sorttable_nosort">Loc</th>
<th class="merchRow">Report Code</th>
<th class="merchRow">SKU</th>
<th class="merchRow">Special ID</th>
<th class="merchRow">Description</th>
<th class="merchRow">Quantity</th>
<th class="sorttable_nosort">Unit</th>
<th style="display: none;" class="num">Quantity #</th>
</tr>
</thead>
<tbody>
<?php foreach ($dbh->query($query) as $row) {?>
<tr>
<td class="ui-widget-content"><input type="checkbox" class="check" name="check"></td>
<td name="rows[0][0][loc]" class="loc ui-widget-content" id="loc-<?php echo intval ($row['Loc'])?>"><?php echo $row['Loc'];?></td>
<td name="rows[0][0][rp-code]" class="rp-code ui-widget-content" align="center" id="rp-code-<?php echo intval ($row['Rp-Code'])?>"><?php echo $row['Rp-Code'];?></td>
<td name="rows[0][0][sku]" class="sku ui-widget-content" id="sku-<?php echo intval ($row['SKU'])?>"><?php echo $row['SKU'];?></td>
<td name="rows[0][0][special-id]" class="special-id ui-widget-content" align="center" id="special-id-<?php echo intval ($row['Special-ID'])?>"><?php echo $row['Special-ID'];?></td>
<td name="rows[0][0][description]" class="description ui-widget-content" id="description-<?php echo intval ($row['Description'])?>"><?php echo $row['Description'];?></td>
<td name="rows[0][0][quantity]" class="quantity ui-widget-content" data-quantity="<?php echo $row['Quantity'] ?>" align="center" id="quantity-<?php echo intval ($row['Quantity'])?>"><?php echo $row['Quantity'];?></td>
<td name="rows[0][0][unit]" class="unit ui-widget-content" id="unit-<?php echo intval ($row['Unit'])?>"><?php echo $row['Unit'];?></td>
<td name="rows[0][0][quant]" style="display: none;" class="quantity_num ui-widget-content"><input type="textbox" style="width: 100px;" class="spinner" name="value" id="test"></td>
</tr>
<?php } ?>
</tbody>
</table>
</div>
</div>
</form>
Index-order.php:
<?php if(isset($_POST['rows'])): ?>
<table cellspacing="20">
<tr align="center">
<th>Loc</th>
<th>Report Code</th>
<th>SKU</th>
<th>Special ID</th>
<th>Description</th>
<th>Quantity</th>
<th>Unit</th>
<th>Quantity #</th>
</tr>
<?php
foreach($_POST['rows'][0] as $row):
?>
<tr align="center">
<td><?php echo $row['loc']; ?></td>
<td><?php echo $row['rp-code']; ?></td>
<td><?php echo $row['sku']; ?></td>
<td><?php echo $row['special-id']; ?></td>
<td><?php echo $row['description']; ?></td>
<td><?php echo $row['quantity']; ?></td>
<td><?php echo $row['unit']; ?></td>
<td><?php echo $row['quant']; ?></td>
</tr>
<?php
endforeach;
?>
</table>
<?php endif; ?>
JavaScript (obviously needs some work. Posting what I have so far):
$(function () {
$('#form2').on('submit', function (e) {
if($('input.check').is(':checked')) {
$(this).closest('tr');
e.preventDefault();
var request = $.ajax({
type: 'post',
url: 'index-order.php',
data: $('#form2').serialize(),
success: function(){
alert('success');
},
error: function(){
alert('failure');
}
});
}
});
});

What you can do is get all the siblings of the current checked checkbox and based on that get all the columns and separate the data to finally send it via ajax.
You can do something like this:
$('#form2').on('submit', function (e) {
$checkbox = $(this).find('input.check:checked').parent('td'); //Finds the checked checkbox's column inside #form2
$otherColumns = $checkbox.nextAll(); //Gets all the siblings
});
The above code will get you all the other columns next to the checked checkbox inside your form. What you an do next is travel across $otherColumns and get each individual value using $otherColums.eq(n).html() where n is the number of the column you are trying to get.