Develop Reference

how to update accept/reject of table of db in PHP

i created an appointments table where user1 would add appointments and user2 would accept/reject the appointment. now my problem is when the accept and reject are clicked it is displayed in the table but it is not updated in the db I've did a lot of research over this but hit a road block after road block, so I really hope your help in this, many thanks!
Here is an image of my appointments table:
Here is my code:
<table cellpadding="0" cellspacing="0" border="0" class="table table-condensed" id="example">
<thead>
<tr>
<th>appoinment ID</th>
<th>Date</th>
<th>time</th>
<th>teacher</th>
<th>parent</th>
<th> accept/reject </th>
<th>state</th>
</tr>
</thead>
<tbody>
<?php
$query=mysqli_query($conn, "select * from `app` left join `par` on par.par_id=app.par_id
left join `tea` on tea.tea_id=app.tea_id
ORDER BY app_id DESC");
if($query === false)
{
throw new Exception(mysqli_error($conn));
}
while($row=mysqli_fetch_array($query))
{
$ann_id=$row['app_id'];
$date=$row['date'];
$msg=$row['time'];
$username = $row['username'];
$username = $row['p_username'];
?>
<tr>
<td><?php echo $row['app_id'] ?></td>
<td> <?php echo date('j/m/y',strtotime($row['date'])); ?></td>
<td><?php echo $row['time'] ?></td>
<td><?php echo $row['p_username'] ?></td>
<td><?php echo $row['username'] ?></td>
<td>
reject
accept
</td>
<td>
<div class="chgtext">PENDING</div>
</td>
</tr>
<?php
if (isset($_GET['state'], $_GET['app_id'])) {
$stmt = mysqli_prepare($conn, "UPDATE app SET state = ? WHERE app_id = ?");
mysqli_stmt_bind_param($stmt, "sd", $_GET['state'], $_GET['s.app_id']);
$stmt->execute();
$stmt->close();
}
}
?>
</tbody>
</table>
</div>
</form>

You have an error there. You are using $_GET request with setting it in url. Change your html tag like below
reject
accept <!-- I assumed that column names in database were app_id and state
And in php code
if (isset($_GET['state'], $_GET['app_id'])) {
$stmt = mysqli_prepare($conn, "UPDATE app SET state = ? WHERE app_id = ?");
mysqli_stmt_bind_param($stmt, "sd", $_GET['state'], $_GET['app_id']);
$stmt->execute();
$stmt->close();
}
}
I hope it will help you. If there is any problem then kindly tell me

Deleting row from mysql using jquery and php

I want to create delete feature using function and jquery
My jquery works and show messages but nothing happen "Nothing Deleted"
Jquery Code
<script type="text/javascript">
$(".remove").click(function(){
var id = $(this).parents("tr").attr("id");
if(confirm('Are you sure to remove this record?'))
{
$.ajax({
url: 'delete.php',
type: 'GET',
data: {id: id},
error: function() {
alert('Something is wrong');
},
success: function(data) {
$("#"+id).remove();
alert("Record removed successfully");
}
});
}
});
PHP Function Code
function delete($table,$id) {
global $connect;
mysqli_query($connect, "DELETE FROM `$table` WHERE `id` = $id ");
}
Delete.php Code
include ('function.php');
$id = $_GET['id'];
$table = 'msg';
delete($table,$id);
HTML Code
<table class="table table-striped" style="background-color: #ffffff;">
<tr>
<th>ID</th>
<th>From</th>
<th>Title</th>
<th>Date</th>
<th>Action</th>
</tr>
<?php
$i = '1';
$username = $user_data['username'];
$query = "SELECT * FROM msg WHERE `go_to` = '$username' Order by id";
$result = mysqli_query($connect, $query);
while($row = mysqli_fetch_assoc($result))
{
?>
<tr>
<td><?php echo $i++; ?></td>
<td><?php echo $row['come_from']; ?></td>
<td>
<a href="read_message/<?php echo $row['id']; ?>"><?php if(count_msg_not_opened($username, $row['id']) > '0')
{
echo $row['title'];
}
else
{
echo '<b>' . $row['title'] . '</b>';
} ?></a></td>
<td><?php echo $row['date']; ?></td>
<td>
<button class="btn btn-danger btn-sm remove">Delete</button>
</td>
</tr>
<?php } ?>
</table>
I also include "jquery.min.js"
When I press "Delete" bottom this message appears "Are you sure to remove this record?"
I pressed "Yes" then this message appears "Record removed successfully", but nothing was deleted.
I don't know where the problem is.

You forgot to add the id attribute to the <tr>
<tr id="<?php echo $row['id']; ?>">
You should also add error checking and prepared statements to your PHP code.

Are you sure that you have connected your PHP-code to your SQL-database?
function delete($table,$id) {
global $connect;
mysqli_query($connect, "DELETE FROM `$table` WHERE `id` = $id ");
}
The code above is relying on a connection already existing within your PHP-file. See this to find out how to apply a connection.

How to make linkable data from a query in a table

How can i make the data from my query linkable/clickable so that i can run a function when I click it. The data that needs to be linkable/clickable is the date and after clicking it will run a function.
Below is my code in PHP:
if (isset($_POST['go'])){
if (((!empty($_POST['from'])&&!empty($_POST['to'])))&&((!empty($_POST['from'])&&!empty($_POST['to'])))){
$from = $_POST['from'];
$to = $_POST['to'];
$from =explode('/',$from);
$from = "$from[2]-$from[0]-$from[1]";
$to = explode ('/',$to);
$to = "$to[2]-$to[0]-$to[1]";
$query= mysqli_query($con,"SELECT Date, Time, Latitude,Longitude,Depth,Magnitude
FROM bulletin WHERE Date between '$from' and '$to';");
$the_array = array();
while($row = mysqli_fetch_array($query)){
$date = $row['Date'];
$time = $row['Time'];
$latitude= $row['Latitude'];
$longitude= $row['Longitude'];
$depth =$row['Depth'];
$magnitude = $row['Magnitude'];
$the_arraypei[] = array($row['Date'] ); //added
echo '<tr class="normalRow">
<td onClick="document.location.href="http://www.yoursite.com";">'.$date.'</a></td>
<td border="1">'.$time.'</td>
<td border="1">'.$latitude.'</td>
<td border="1">'.$longitude.'</td>
<td border="1">'.$depth.'</td>
<td border="1">'.$magnitude.'</td>
</tr>';
}
$js_array1 =$the_arraypei;//added
}

Looks like you haven't opened up an anchor tag <a> within the td.
Also, avoid writing your HTML within the PHP echo statement.
<?php
if (isset($_POST['go'])){
/* Other code */
while($row = mysqli_fetch_array($query)){
/* Loop statements... */
$the_arraypei[] = array($row['Date'] );
?>
<tr class="normalRow">
<td>
<?php echo $date; ?>
</td>
<td border="1"><?php echo $time ?> </td>
<!-- Other tds.... -->
<td border="1"><?php echo $magnitude; ?></td>
</tr>
<?php }
js_array1 = $the_arraypei; //added
}
?>

I think that you have to modify your code like that:
echo '<tr class="normalRow"><td>'.$date.'</td><td border="1">'.$time.'</td><td border="1">'.$latitude.'</td><td border="1">'.$longitude.'</td><td border="1">'.$depth.'</td><td border="1">'.$magnitude.'</td></tr>';
If you want to open a new window without javascript. Otherwise if you want to execute a javascript function you can do:
echo '<tr class="normalRow"><td><button onClick="executeMe()">'.$date.'</button></td><td border="1">'.$time.'</td><td border="1">'.$latitude.'</td><td border="1">'.$longitude.'</td><td border="1">'.$depth.'</td><td border="1">'.$magnitude.'</td></tr>';
And on page you should add
<script type="text/javascript">
function executeMe() {
console.log('Hello World!');
}
</script>
Try it here

Adding and accessing buttons IDs in a PHP-generated table

I have problems with my php that generates a table, requests data from a SQL database, and stores data in the table.
The first cell of each row in the table contains a dropdown button which links to a delete.php script that deletes the row. It also links to a modif.php script used to modify the row's cells.
My problem is that i need to access the dropdown buttons with IDs to know which row to delete.
And i don't really know how to link my dropdown buttons with IDs and access them in my scripts.
Here's the code :
<?php
$con=mysqli_connect("localhost","root","icare","icare1");
// Check connection
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$result = mysqli_query($con,"SELECT * FROM magasin");
echo "<table border='1'>
<tr>
<th>code</th>
<th>ip</th>
<th>ads</th>
<th>region</th>
<th>adress</th>
<th>name</th>
<th>email</th>
<th>number</th>
<th>gtc</th>
<th>date</th>
</tr>";
$indexB = array();
$i = 0;
while($row = mysqli_fetch_array($result))
{
echo "<tr>";
echo "<td>
<div class='dropdown'>
<button id=$indexB[$i] class='dropbtn'>▶</button>
<div class='dropdown-content'>
<a href='modif.php'>Modifier</a>
<a href='delete.php'>Supprimer</a>
</div>
".$row['code']."
</div>
</td>";
echo "<td><div>" . $row['ip'] . "</div></td>";
echo "<td><div>" . $row['ads'] . "</div></td>";
echo "<td><div>" . $row['region'] . "</div></td>";
echo "<td><div>" . $row['adress'] . "</div></td>";
echo "<td><div>" . $row['name'] . "</div></td>";
echo "<td><div>" . $row['email'] . "</div></td>";
echo "<td><div>" . $row['number'] . "</div></td>";
echo "<td><div>" . $row['gtc'] . "</div></td>";
echo "<td><div>" . $row['date'] . "</td>";
echo "</tr>";
$i++;
}
echo "</table>";
mysqli_close($con);
?>
And here is the delete.php :
<?php
$connection = mysqli_connect("localhost", "root", "icare", "icare1");
if($connection === false){
die("Connection failed " . mysqli_connect_error());
};
//$id =
$sql = "DELETE FROM magasin WHERE Code=".$id;
//$result = mysqli_query($connection,$sql);
if(mysqli_query($connection, $sql)){
echo "Done !";
} else{
echo "Failed : $sql. " . mysqli_error($connection);
}
mysqli_close($connection);
?>
I started an indexB[] to store the dropdowns IDs but i'm not sure that i'm doing it right.
In the end I want to link my buttons to the code attribute and then delete the row with my sql query using the code attribute.
I'm new to this so ... sorry if i did or ask something plain stupid.
UPDATE :
To mikrafizik :
I tried your answer but it doesn't work. I only get "1">Supprimer". It seemsi have a problem with the href but i just can't find why.
I don't know what i forgot, so if you see something wrong :
<?php
$con=mysqli_connect("localhost","root","icare","icare1");
// Check connection
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$result = mysqli_query($con,"SELECT * FROM magasin");
echo "<table border='1'>
<tr>
<th>Code</th>
<th>Adresse IP</th>
<th>Adresse ADS</th>
<th>Région</th>
<th>Adresse</th>
<th>Nom du directeur</th>
<th>Mail</th>
<th>Téléphone</th>
<th>GTC</th>
<th>Date d'installation</th>
</tr>";
$data = mysqli_fetch_array($result);
?>
<table>
<?php foreach ($data as $key => $row):?>
<tr>
<td>
<div class='dropdown-content'>
<button class='dropbtn'>▶</button>
<!-- Modifier -->
Supprimer
</div>
</td>
<td><div><?php echo $row['AdresseIP'];?></div></td>
<td><div><?php echo $row['AdresseADS'];?></div></td>
<td><div><?php echo $row['Region'];?></div></td>
<td><div><?php echo $row['Adresse'];?></div></td>
<td><div><?php echo $row['NomDirecteur'];?></div></td>
<td><div><?php echo $row['Mail'];?></div></td>
<td><div><?php echo $row['Tel'];?></div></td>
<td><div><?php echo $row['Gtc'];?></div></td>
<td><div><?php echo $row['DateInstall'];?></td>
</tr>
<?php endforeach; ?>
</table>
<?mysqli_close($con);?>
delete.php :
<?php
$connection = mysqli_connect("localhost", "root", "icare", "icare1");
if($connection === false){
die("Connexion échouée " . mysqli_connect_error());
};
$id = $_GET['id'];
$sql = "DELETE FROM magasin WHERE Code=".$id;
$result = mysqli_query($connection,$sql);
if($result){
echo "Enregistrement réussi !";
} else{
echo "Enregistrement échoué : $sql. " . mysqli_error($connection);
}
mysqli_close($connection);
?>

At first, divide query and form building like that
$data = mysqli_fetch_array($result)
then
<?php foreach ($data as $key => $row): ?>
<tr>
<td>
<div class='dropdown-content'>
<a href='modif.php?id=<?=$row['id']?>'>Modifier</a>
<a href='delete.php?id=<?=$row['id']?>'>Supprimer</a>
</div>
</td>
</tr>
<?php endforeach ?>
And in your modif.php
$id = $_GET['id'];

(Concerns Flumble_'s answer, that I can't comment because of my low rep)
Maybe the <?= ?> are the problem. Try replacing them with <?php ?>
UPDATE :
You should also never use short open tags (<? ?>) : See the answer to this question.
Also, when you write <?php $row['id'] ?>, you are not printing the value. You must write <?php echo $row['id']; ?>.
The same thing applies with short open tags (but not with the <?= syntax).
Hope this helps further. I will continue reviewing your code.
UPDATE 2 :
Alright I think I got it.
mysqli_fetch_array returns a row, not the entire result set. So you have to loop through the rows until mysqli_fetch_array returns NULL :
while($data = mysqli_fetch_array($result)) {
?>
<tr>
<!-- ... -->
</tr>
<?php
}

How to insert data into an existing html table in php?

I want to insert data which returns from the php code, into an existing html table (name = "userDetails").
Number of rows in the html table would be different according to the results receiving from the mysql database. How can I do that?
Code is as follows,
<?php
$connection = mysqli_connect('localhost', 'root', '', 'users');
$sql = "SELECT id, firstname,email FROM usertable";
$result = mysqli_query($connection, $sql);
$userDetailsArray = array();
if(mysqli_num_rows($result) > 0){
$index = 0;
while ($row = mysqli_fetch_assoc($result)) {
$userDataArray[$index] = $row;
$row = $userDataArray[$index];
$userID = $row['id'];
$firstName = $row['firstname'];
$email = $row['email'];
$index++;
}
}
?>
<html>
<head></head>
<body>
<table name = "userDetails">
<tr>
<th>User ID</th>
<th>First Name</th>
<th>email</th>
</tr>
</table>
</body>
<html/>

Looks like you're looking for something like this:
<html>
<head></head>
<body>
<table name = "userDetails">
<tr>
<th>User ID</th>
<th>First Name</th>
<th>email</th>
</tr>
<?php
$connection = mysqli_connect('localhost', 'root', '', 'users');
$sql = "SELECT id, firstname,email FROM usertable";
$result = mysqli_query($connection, $sql);
if(mysqli_num_rows($result) > 0){
while ($row = mysqli_fetch_assoc($result)) {
echo '<tr>';
echo '<td>'. $row['id'] .'</td>';
echo '<td>'. $row['firstname'] .'</td>';
echo '<td>'. $row['email'] .'</td>';
echo '</tr>';
}
}
?>
</table>
</body>
<html/>
You can simply generate HTML in your while loop. Not the best possible strategy, but it certainly gives results.

using same page means it will work. try this
while ($row = mysqli_fetch_assoc($result))
{
$userDataArray[$index] = $row;
$row = $userDataArray[$index];
echo "<tr><td>".$row['id']."</td>";
echo "<td>".$row['firstname']."</td>"";
echo "<td>".$row['email']."</td></tr>"";
$index++;
}

what are the requirements of these lines in your code actualy?
$userDetailsArray = array();
$userDataArray[$index] = $row;
$row = $userDataArray[$index];
??and even what is the requirement of $index variable?
i am adding changes to you program here.
<?php
$connection = mysqli_connect('localhost', 'root', '', 'users');
?>
<html>
<head></head>
<body>
<table name = "userDetails">
<tr>
<th>User ID</th>
<th>First Name</th>
<th>email</th>
</tr>
<?php
$sql = "SELECT id, firstname,email FROM usertable";
$result = mysqli_query($connection, $sql);
if(mysqli_num_rows($result) > 0){
while ($row = mysqli_fetch_assoc($result)) {
?>
<tr>
<td>$row['id'];</td>
<td>$row['firstname'];</td>
<td>$row['email'];</td>
</tr>
<?php
}
}
else
{
?>
<tr>
<td colspan=3>Data is not available</td>
</tr>
<?php
}
?>
</table>
</body>
<html/>