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PHP AJAX Delete Record - deletion only works 1 time

I am deleting records with ajax and php. When I click the button it erases the record but when I click to delete another record it does nothing. What am I doing wrong?
HTML
<form id="prop_remove">
<input type="hidden" name="id" id="last_id" value="<?php echo $id; ?>">
<input type="hidden" name="user" id="last_user" value="<?php echo $user; ?>">
<input type="button" name="submit" id="last_prop" class="button fullwidth margin-top-5" value="Delete">
</form>
AJAX
<script>
$(document).ready(function() {
$('#last_prop').click(function() {
var id = $('#last_id').val();
var user = $('#last_user').val();
$.ajax({
url: "delete.php",
method: "POST",
data: {
ilan_id: id,
ilan_user: user
},
success: function(response) {
if (response == 1) {
$('#last_prop').closest('tr').css('background', 'tomato');
$('#last_prop').closest('tr').fadeOut(800, function() {
$(this).remove();
});
} else {
alert('Invalid id');
}
}
});
});
});
</script>
PHP
<?php
require_once 'config.php';
$id = $_POST['ilan_id'];
$user = $_POST['ilan_user'];
$checkRecord = "SELECT * FROM last_tbl WHERE id = '$id' AND user = '$user'";
$check_result = mysqli_query($conn, $checkRecord);
$totalrows = mysqli_num_rows($check_result);
if($totalrows > 0){
$delete_sql = "DELETE FROM last_tbl WHERE id = '$id' AND user = '$user';";
$delete_result = mysqli_query($conn, $delete_sql);
echo 1;
exit;
}
?>

Your problem is that you're overwriting the HTML element IDs. You can remove your forms and use a single button instead, and pass data through the data attribute of the buttons.
Replace your form by a single button
<button class="button fullwidth margin-top-5 last_prop" data-last-id="<?= $id; ?>" data-last-user="<?= $user; ?>">Delete</button>
Then adapt your jQuery to use the class last_prop instead of the ID, and fetch the values from the data attributes we set above.
<script>
$(document).ready(function () {
$('.last_prop').click(function () {
var id = $(this).data('last-id');
var user = $(this).data('last-user');
$.ajax({
url:"delete.php",
method: "POST",
data: {ilan_id: id, ilan_user: user},
success:function(response){
if (response == 1 ){
$('#last_prop').closest('tr').css('background','tomato');
$('#last_prop').closest('tr').fadeOut(800,function(){
$(this).remove();
});
} else {
alert('Invalid id');
}
}
});
});
});
</script>
Also, your query can be reduced to one (you don't need that SELECT), and should be with a prepared statement.
<?php
require_once 'config.php';
$id = $_POST['ilan_id'];
$user = $_POST['ilan_user'];
$sql = "DELETE FROM last_tbl WHERE id = ? AND user = ?;";
$stmt = $conn->prepare($sql);
$stmt->bind_param("ss", $id, $user);
$stmt->execute();
if ($stmt->affected_rows) {
// rows were deleted
echo 1;
}
$stmt->close();

Receive post data ajax with php

I'm trying to receive post data with php from ajax in same page but seems like i have some issues that i have no idea to solve them
here is my html/php code :
<select style="width:auto; margin-left:6%;" class="form-control" name="n-omran-select" id="num_omrane">
<option value='' >Choisir...</option>
<?php
while ($row = $result->fetch_assoc())
{
echo "<option value=".$row['N_omran'].">".$row['N_omran']."</option>";
}
?>
</select><br>
<?php
if (isset($_POST["selectName"])) { // try to receive post values but it seems that's not working
$selectOption = $_POST["selectName"];
$query = "SELECT nom,prenom,tel,adress,matricule_assu FROM `personnel` WHERE N_omran ='$selectOption'";
$result = mysqli_query($db,$query);
$row=mysqli_fetch_array($result,MYSQLI_ASSOC);
if ($row) {
echo " <h4>Nom : {$row['nom']}</h4>
<h4>Prénom : {$row['prenom']}</h4>
<h4>Téléphone : {$row['tel']} </h4>
<h4>Maticule d'assurance : {$row['matricule_assu']}</h4>
<h4>Adresse : {$row['adress']}</h4>";
}
} ?>
And here is my Ajax post request :
$('#num_omrane').on('change', function () {
var n_omrane = $('#num_omrane').val();
if(n_omrane != ''){
$.ajax({
type: "POST",
url: "index.php",
data: {selectName: n_omrane},
success: function () {
alert("Post request successfully done")
}
});
}
});

the code below can replace all your data with the new ones with clean writing :)
// get data from Database
<?php
if (isset($_POST["selectName"])) { // try to receive post values but it seems that's not working
$selectOption = $_POST["selectName"];
$query = "SELECT nom,prenom,tel,adress,matricule_assu FROM `personnel` WHERE N_omran ='$selectOption'";
$result = mysqli_query($db,$query);
$row = mysqli_fetch_array($result,MYSQLI_ASSOC);
} ?>
// show rows to be selected
<select style="width:auto; margin-left:6%;" class="form-control" name="n-omran-select" id="num_omrane">
<option value='' >Choisir...</option>
<?php while ($row = $result->fetch_assoc()) { ?>
<option value="<?= $row['N_omran'] ?>"> <?= $row['N_omran'] ?></option>
<?php } ?>
</select><br>
// show recieved data
<?php if ($row) { ?>
<div id="informations">
<h4>Nom : <span id="nom"><?= $row['nom'] ?></span></h4>
<h4>Prénom : <span id="prenom"><?= $row['prenom'] ?></span></h4>
<h4>Téléphone : <span id="tel"><?= $row['tel'] ?> </span></h4>
<h4>Maticule d'assurance : <span id="matricule_assu"><?= $row['matricule_assu'] ?></span></h4>
<h4>Adresse : <span id="adress"><?= $row['adress'] ?></span></h4>
</div>
<?php } ?>
// script for making ajax call
<script>
$('#num_omrane').on('change', function () {
var n_omrane = $('#num_omrane').val();
if(n_omrane != ''){
$.ajax({
type: "POST",
url: "index.php",
data: {selectName: n_omrane},
success: function (response) {
$("#nom").text(response.nom);
$("#prenom").text(response.prenom);
$("#tel").text(response.tel);
$("#matricule_assu").text(response.matricule_assu);
$("#adress").text(response.adress);
}
});
}
});
</script>

$json_data=file_get_contents('php://input');
$json=json_decode($json_data,true);
if(array_key_exists("selectName",$json)){
$selectOption =$json["selectName"];
}

How to prevent Ajax from loading the unnecessary elements repeatedly?

I want Ajax to apply only in the div (#usersDiv)
When selector is changed into 'body' it loads the whole page repeatedly. (Cannot type in the box)
but when selector changed as #userDiv, it shows the search box twice in the page. In the first box can be typed, but again second box loads over and over.
PHP file is as follows (test.php)
<?php
$connection = mysqli_connect('localhost', 'root', '', 'users');
function users($connection){
if(!empty($_POST)){
$country = $_POST['userCountry'];
$sql = "SELECT * FROM users WHERE country = '$country' ";
$result = mysqli_query($connection, $sql);
if (mysqli_num_rows($result) > 0) {
while ($row = mysqli_fetch_assoc($result)) {
$userName = $row['username'];
$city = $row['city'];
echo '<div><h4>'. $userName. " ". $city. '</h4></div>';
}
} else {
echo "Use search box!";
}
} else {
echo "Use Search Box!";
}
}
?>
<html>
<head><script src = "jquery.min.js"></script>
<script>
$(document).ready(function(){
$.getJSON("http://freegeoip.net/json/", function(data) {
var country = data.country_name;
$.ajax({
method:"POST",
url:"test.php",
data:{userCountry:country},
success:function(result){
$('#usersDiv').html(result);
}
});
});
});
</script>
</head>
<body>
<form name = "searchForm" action = "search.php" method = "POST">
<input type = "text" name = "searchPlace" required />
<input type = "submit" value = "Search"/>
</form>
<div id = "usersDiv"> <?php users($connection); ?> </div>
</body>
<html/>

I have altered your code to wrap your PHP function within an if($_POST) to prevent the entire page loading
<?php
$connection = mysqli_connect('localhost', 'root', '', 'users');
if($_POST){ // Check if form has been submitted
$country = $_POST['userCountry'];
$sql = "SELECT * FROM users WHERE country = '$country' ";
$result = mysqli_query($connection, $sql);
if (mysqli_num_rows($result) > 0) {
while ($row = mysqli_fetch_assoc($result)) {
$userName = $row['username'];
$city = $row['city'];
echo '<div><h4>'. $userName. " ". $city. '</h4></div>';
}
} else {
echo "Use search box!";
}
}else{ // If it hasn't then show the search form
?>
<html>
<head><script src = "jquery.min.js"></script>
<script>
$(document).ready(function(){
$("#searchForm").on("submit",function(e){ // Check for form submission
$.getJSON("http://freegeoip.net/json/", function(data) {
var country = data.country_name;
$.ajax({
method:"POST",
url:"test.php",
data:{userCountry:country},
success:function(result){
$('#usersDiv').html(result);
}
});
});
});
});
</script>
</head>
<body>
<form name = "searchForm" action = "search.php" method = "POST" id="searchForm">
<input type = "text" name = "searchPlace" required />
<input type = "submit" value = "Search"/>
</form>
<div id = "usersDiv"></div>
</body>
<html/>
<?php } ?>
As Alexander suggests, read up on SQL Injection
How can I prevent SQL injection

PHP, CodeIgniter, Javascript

I have this website wherein I need to debug, but I can't seem to get the data from this checkbox ..
<?php
foreach ($callers as $block)
{
if($block->block_status==1)
{?>
<div class="col-md-1">
<input type="checkbox" name="block_cb[]">
</div>
<input class="block_id" name="block_id[]" type="hidden"
value="<?php echo $block->id;?>">
<div class="col-md-6"> <?php echo $block->block_number;?></div>
<div class="col-md-5"><?php echo $block->block_date;?></div>
</div>
</div>
</div>
<?php
}
}
?>
And I have this button ..
<button class="btn btn-danger" href="<?php echo base_url(); ?>admin/block/update/<?php echo $block->id;?> "id="unblock">Unblock</button>
This goes to the function updateblock()
Eventually discovered this Javascript, but don't know how to apply this script to the code above.
function unBlock(){
var id = [];
var status = [];
var curpage = $('#curpage').val();
hidden = [];
$('input[name="block_id[]"]').each(function(){
id.push($(this).val());
});
$('input[name="block_cb[]"]').each(function(){
if($(this).is(':checked'))
{
toastr.success('Number Unblocked');
status.push(0);
var hiddenpush = $(this).parents('#idfind').find('.block_id').val();
hidden.push(hiddenpush);
$(this).parents('.gbItem').addClass('hidden');
}
else{
status.push(1);
}
for(var a = 0; a < id.length ; a++){
$.ajax({
url: "<?php echo base_url(); ?>"+curpage+"/dashboard/updateblock",
type: 'POST',
data:{
'user_id' : id[a],
'block_status': status[a],
},
});
}
This is where the link goes.
function updateblock(){
//This is the original code.
$id = $_POST['id'];
$data['block_status'] = $_POST['block_status'];
$this->block_model->update_blocked_number($id,$data);
/*
$id = $id;
//$data['block_status'] = $this->uri->segment(5);
$data['block_status'] = 111;
$this->block_model->update_blocked_number($id,$data);
*/
}
How can I get the data from the checkboxes (which is an array) to the button. I'll be passing the ID from the URL. Thank you.
E.g link/here/6 where 6 should be the ID I should get from the checkboxes.

You can try this
<?php echo anchor(BASE_URL.'link/here','Unblock',
array('class'=>"btn btn-danger",'onClick'=>'unBlock()')); ?>
OR
<?php echo anchor(BASE_URL.'link/here','Unblock', 'class="btn btn-danger new-action"'); ?>
$('.new-action').click(function(e){
e.preventdefault();
var id = [];
var status = [];
var curpage = $('#curpage').val();
hidden = [];
$('input[name="block_id[]"]').each(function(){
id.push($(this).val());
});
$('input[name="block_cb[]"]').each(function(){
if($(this).is(':checked'))
{
toastr.success('Number Unblocked');
status.push(0);
var hiddenpush = $(this).parents('#idfind').find('.block_id').val();
hidden.push(hiddenpush);
$(this).parents('.gbItem').addClass('hidden');
}
else{
status.push(1);
}
});

Not going inside correct loop on checking two checkboxes

I have a code in which i am having checkboxes of two categories one of brand and and other of discount percentage.Based on those checkboxes,div s are getting filtered.Filteration of divs is happening ok but with a small issue.
Below is the firstphp page
<html>
<head>
<title>Insert title here</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<style type="text/css">
#image{
width:250px;
height:250px;
border:1px solid black;
}
</style>
</head>
<body>
<script type="text/javascript">
function get_check_value() {
var c_value = [];
$('input[name="brand"]:checked').each(function () {
c_value.push(this.value);
});
return c_value.join(',');
}
function get_disc_value(){
var d_value=[];
$('input[name="discount"]:checked').each(function () {
d_value.push(this.value);
});
return d_value.join(',');
}
$(document).ready(function(){
checkboxValidate = function (e) {
if(e)e.preventDefault();
alert("hi");
//var os = $('#originState').val();
//var c = $('#commodity').val();
//var ds = $('#destState').val();
var ser = get_check_value();
var disc=get_disc_value();
//var queryString = "os=" + os;
var data = "?ser=" + ser;
var queryString = "&ser=" + ser;
// alert(ser);
$.ajax({
//alert("ajax");
type: "POST",
url: "sortingajax.php",
data: {ser:ser,disc:disc},
dataType : 'html',
success: function (b) {
// alert(a+' ok. '+b)
$('#results').html(b);
console.log(b);
}
});
}
$( "[type=checkbox]" ).change(checkboxValidate);
checkboxValidate();
});
</script>
brand
<input type="checkbox" name="brand" value="Sunbaby" id="check" />Sunbaby
<br/>
<input type="checkbox" name="brand" value="Advance Baby" id="check"/>Advance Baby
<br/>
store
<br/>
<input type="checkbox" name="discount" value="10" />10
<br/>
<input type="checkbox" name="discount" value="20" />20
<br/>
<input type="checkbox" name="discount" value="30" />30
<br/>
<button id="btnSubmit">sort</button>
<div id="image">
<img src="http://img5a.flixcart.com/image/sunglass/4/u/y/mb-d4-09b-miami-blues-free-size-275x275-imadzkhuchryqjgp.jpeg" width="250px" height="250px"/>
</div>
<div id="results">
sdfsdfsdfsdfdsfgsdgsbsfgvf
</div>
</body>
</html>
Asortingajax.php-where i m checking with database
<?php
include('connection.php');
$query=$_POST['ser'];
$query2=$_POST['disc'];
$query=explode(",",$query);
$query = array_filter($query);
$query2=explode(",",$query2);
$query2 = array_filter($query2);
$result=count($query);
$result1=count($query1);
//echo $result;
echo $query;
echo $query1;
echo $result1;
$parts = array();
$brandarray=array();
$discarray=array();
$limit = 10;
$offset = 0;
foreach( $query as $queryword ){
$brandarray[] = '`BRAND` LIKE "%'.$queryword.'%"';
}
foreach( $query2 as $discword ){
$discarray[] = '`DPERCENT` < '.$discword.'';
}
if(!empty($query) && !empty($query2))
{
echo "both loops";
$countsql2='SELECT * FROM xml WHERE ('.implode ('OR',$brandarray).') AND ('.implode ('OR',$discarray).') ';
print($countsql2);
$combinesql=mysql_query($countsql2);
$androws123 = mysql_num_rows($combinesql);
$countArray1=array();
echo "<br />";
echo $androws123;
$totalrows=0;
$orsqlrows=0;
while($row = mysql_fetch_array($countsql3)) {
// Append to the array
$countArray1[] = $row;
//echo $row['PID']."<BR />";
}
if(empty($countArray1))
{
echo "or";
$orsql='SELECT * FROM xml WHERE ('.implode ('OR',$brandarray).') AND ('.implode ('OR',$discarray).') ';
$orsql1=mysql_query($orsql);
$orsqlrows = mysql_num_rows($orsql1);
$countArray2=array();
echo $orsqlrows;
while($row = mysql_fetch_array($countsql1)) {
// Append to the array
$countArray2[] = $row;
//echo $row['PID']."<BR />";
}
}
$totalrows=$orsqlrows+$androws123;
echo $orsqlrows;
echo "hi";
echo $androws123;
if($totalrows==$androws123)
{
echo "and";
foreach( $brandcheck as $queryword ){
$brandarray[] = '`BRAND` LIKE "%'.$queryword.'%"';
}
$brandsql='SELECT * FROM XML WHERE ('.implode ('OR',$brandarray).') AND ('.implode ('OR',$discarray).') limit '.$offset.', '.$limit.' ';
$brandsql1=mysql_query($brandsql);
$numrows = mysql_num_rows($brandsql1);
$countArray=array();
//print($brandsql);
echo "<br />";
while($row = mysql_fetch_array($brandsql1)) {
// Append to the array
$countArray[] = $row;
//echo $row['PID']."<BR />";
}
}
else{
foreach( $brandcheck as $queryword ){
$brandarray[] = '`BRAND` LIKE "%'.$queryword.'%"';
}
echo "orloop";
$brandsql='SELECT * FROM XML WHERE ('.implode ('OR',$brandarray).') AND ('.implode ('OR',$discarray).') limit '.$offset.', '.$limit.' ';
//print($brandsql);
$brandsql1=mysql_query($brandsql);
$numrows = mysql_num_rows($brandsql1);
$countArray=array();
//print($brandsql);
echo "<br />";
echo $numrows;
while($row = mysql_fetch_array($brandsql1)) {
// Append to the array
$countArray[] = $row;
//echo $row['PID']."<BR />";
}
}
}
?>
<?php
foreach($countArray as $array)
{
?>
<div>
<img src="<?php echo $array['IMAGEURL']?>"/></div>
<?php $i++; } ?>
I n the first php page.when i m checking one brand checkbox and one discount checkbox at a time,means one from both brand and discount are checked.div s are getting filtered correctly.but when i check two checkboxes out of discount checkboxes and one from brand,I am not getting divs filtered correctly whereas div s should get filtered.
Help me guys where i m doing wrong in above code...

Have you echoed the query to see what you get? It seems to me it's working fine as long as there's no actual implode 'glue' used (the 'OR'). I think you need to change the glue part to ' OR ' (notice the spaces around it).