How to delete multiple using checkbox with Ajax call - php

Question

i am trying to delete values with check box using ajax call can any one help me out.
unable to find the error and one nore thing this is a template and i hav a feature of check all inbuilt so do need to change anyinbuilt code for check box
This is my listing form:
<form id="stafflistForm">
<input type="hidden" name="checkedids" value="<?php echo $staffResults['id_staff']; ?>">
<button id="deleteChecked"><i class="fa fa-trash-o"></i></button>
</form>
This my Ajax Script:
<script language="JavaScript">
$("#deleteChecked").click(function()
{
$("#delshowMessageDiv").hide();
$("#delshowMessage").html('');
$.ajax({
url: "staffcontroller.php",
method: "POST",
data: { delData : $("#stafflistForm").serialize(), 'action':'delete'},
dataType: "json",
success: function (response) {
if(response["success"]==true)
{
$("#delshowMessageDiv").hide();
$("#delshowSuccessMessageDiv").show();
$("#delshowSuccessMessage").html(response["message"]);
}else{
$("#delshowMessageDiv").show();
$("#delshowMessage").html(response["message"]);
}
},
error: function (request, status, error) {
$("#hshowMessageDiv").show();
$("#hshowMessage").html("OOPS! Something Went Wrong Please Try After Sometime!");
}
});
return false;
});
</script>
And this is my controller page:
else if($_REQUEST['action']=='delete'){
$delids=explode(",",$_REQUEST["checkedids"]);
$count=count($delids);
for($i=0;$i<$count;$i++)
{
$delQuery= $conn->query("DELETE FROM os_staff WHERE id_staff=".$delids[$i]);
}
if($delQuery){
$response['message'] = "<strong>Success!</strong>Staff Deleted Successfully.";
$response['success'] = true;
}else{
$response['message'] = "<strong>Warning!</strong> Staff Not Deleted.Please Check Carefully..";
$response['success'] = false;
}
echo json_encode($response);
exit;
}

Answer 1

First of all: Dont use html attribute id if you using it multipli id="deleteChecked". Use class selector or data attribute instead.
Here is a small script which show you how you can improve your code.
That should be help you to solve your issue.
$(document).ready(function() {
$('.delete-user').on('click', function(e) {
// do here your ajax
// this is just example
$(this).parents('tr').remove();
});
});
.fa-trash-o {
padding: 3px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table>
<tr>
<td>
<form class="stafflistForm">
<input type="hidden" name="checkedids" value="<?php echo $staffResults['id_staff']; ?>">
<button class="delete-user"><i class="fa fa-trash-o"></i></button>
</form>
</td>
<td>Tom</td>
</tr>
<tr>
<td>
<form class="stafflistForm">
<input type="hidden" name="checkedids" value="<?php echo $staffResults['id_staff']; ?>">
<button class="delete-user"><i class="fa fa-trash-o"></i></button>
</form>
</td>
<td>Peter</td>
</tr>
<tr>
<td>
<form class="stafflistForm">
<input type="hidden" name="checkedids" value="<?php echo $staffResults['id_staff']; ?>">
<button class="delete-user"><i class="fa fa-trash-o"></i></button>
</form>
</td>
<td>Son Goku</td>
</tr>
<tr>
<td>
<form class="stafflistForm">
<input type="hidden" name="checkedids" value="<?php echo $staffResults['id_staff']; ?>">
<button class="delete-user"><i class="fa fa-trash-o"></i></button>
</form>
</td>
<td>Gozilla</td>
</tr>
</table>

Answer 2

The PHP script should set the correct mime type via:
header('Content-type: application/json');
Besides that: Why do you have separate DIV containers for the error and success messages? Why not have one "feedback" div, which gets a CSS class which does the formating (based on error or success).