Ajax Delete Records from Database in PHP

 <?php

$servername = "localhost";
$username = "root";
$password = "";
$database = "test";

//Create Connection
$conn = new mysqli($servername, $username, $password, $database);

//Check Connection
if ($conn->connect_error) {
    die("Connection failed : " . $conn->connect_error);
}
Above is mysqli_conn.php File which is included in below Files.






Below is ajax-load.php File
<?php
include("mysqli_conn.php");

$sql = "SELECT * FROM students";
$result = $conn->query($sql);
$output = "";

if ($result->num_rows > 0) {
    $output = "<table border='1' width='100%' cellspacing='0' cellpadding='10px'>
                <tr>
                    <th width='100px'>Id</th>
                    <th>Student Name</th>
                    <th>Age</th>
                    <th>City</th>
                    <th width='100px'>Delete</th>
                </tr>";
    while ($row = $result->fetch_assoc()) {
        $output .= "<tr><td>{$row['id']}</td><td>{$row['student_name']}</td><td>{$row['age']}</td><td>{$row['city']}</td><td><button class='delete-btn' data-id='{$row['id']}'>Delete</button></td></tr>";
    }
    $output .= "</table>";
    $conn->close();
    echo $output;
} else {
    echo "<h2>No Record Found.</h2>";
}







Below is ajax-insert.php File.
<?php

$stu_name = $_POST["student_name"];
$stu_age = $_POST["student_age"];
$stu_city = $_POST["student_city"];

include("mysqli_conn.php");

$sql = "INSERT INTO students(student_name, age, city) VALUES('{$stu_name}','{$stu_age}','{$stu_city}')";

if ($conn->query($sql) == TRUE) {
    echo 1;
} else {
    echo 0;
}







Below is show-data.php File.
<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <script src="jquery-3.7.1.min.js"></script>
</head>

<body>
    <table id="main" border="0" cellspacing="0">
        <tr>
            <td id="header">
                <h1>PHP with Ajax</h1>
            </td>
        </tr>
        <tr>
            <td id="table-load">
                <input type="button" id="load-button" value="Load Data"><br><br>
            </td>
        </tr>
        <tr>
            <td id="table-data">
            </td>
        </tr>
    </table>
    <script type="text/javascript" src="js/jquery.js"></script>
    <!-- Whenever we use Ajax, there is no need to use <Form> and
     also no need to use method "GET" or "POST" -->
    <script type="text/javascript">
        $(document).ready(function() {
            $("#load-button").on("click", function(e) {
                $.ajax({
                    url: "ajax-load.php",
                    type: "POST",
                    success: function(data) {
                        $("#table-data").html(data);
                    }
                });
            });
        });
    </script>
</body>

</html>







Below is ajax-delete.php File.
<?php

$student_id = $_POST["id"];

include("mysqli_conn.php");

$sql = "DELETE FROM students WHERE id = {$student_id}";

if ($conn->query($sql) == TRUE) {
    echo 1;
} else {
    echo 0;
}








Below is insert-data.php File.
<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Insert Data</title>
    <style>
        body {
            font-family: arial;
            background: #b2bec3;
            padding: 0;
            margin: 0;
        }

        h1 {
            text-align: center;
            margin: 15px;
        }

        #main {
            width: 800px;
            margin: 0 auto;
            background: white;
            font-size: 19px;
        }

        #header {
            background: #f7d794;
        }

        #table-form {
            background: #55efc4;
            padding: 20px 10px;
        }

        #table-data {
            padding: 15px;
            height: 500px;
            vertical-align: top;
        }

        #table-data th {
            background: #74b9ff;
        }

        #table-data tr:nth-child(odd) {
            background-color: #ecf0f1;
        }

        #success-message {
            background: #DEF1D8;
            color: green;
            padding: 10px;
            margin: 10px;
            display: none;
            position: absolute;
            right: 15px;
            top: 15px;
        }

        #error-message {
            background: #EFDCDD;
            color: red;
            padding: 10px;
            margin: 10px;
            display: none;
            position: absolute;
            right: 15px;
            top: 15px;
        }

        .delete-btn {
            background: red;
            color: #fff;
            border: 0;
            padding: 4px 20px;
            border-radius: 3px;
            cursor: pointer;
        }
    </style>
</head>

<body>
    <table id="main" border="0" cellspacing="0">
        <tr>
            <td id="header">
                <h1>All Records with PHP & Ajax</h1>
            </td>
        </tr>
        <tr>
            <td id="table-form">
                <form id="addForm">
                    Student Name : <input type="text" id="name">&nbsp;&nbsp;&nbsp;&nbsp;
                    Age : <input type="text" id="age">
                    City : <input type="text" id="city">
                    <input type="submit" id="save-button" value="Save"><br><br><br>
                </form>
            </td>
        </tr>
        <tr>
            <td id="table-data">
            </td>
        </tr>
    </table>
    <div id="error-message"></div>
    <div id="success-message"></div>
    <script type="text/javascript" src="js/jquery-3.7.1.min.js"></script>
    <script type="text/javascript">
        $(document).ready(function() {
            //Load Table Records
            function loadTable() {
                $.ajax({
                    url: "ajax-load.php",
                    type: "POST",
                    success: function(data) {
                        $("#table-data").html(data);
                    }
                });
            }
            loadTable(); //Load Table records on Page Load

            //Insert New Records
            $("#save-button").on("click", function(e) {
                e.preventDefault();
                var name = $("#name").val();
                var age = $("#age").val();
                var city = $("#city").val();

                if (name == "" || age == "" || city == "") {
                    $("#error-message").html("All Fields are required.").slideDown();
                    $("#success-message").slideUp();
                } else {
                    $.ajax({
                        url: "ajax-insert.php",
                        type: "POST",
                        data: {
                            student_name: name,
                            student_age: age,
                            student_city: city
                        },
                        success: function(data) {
                            if (data == 1) {
                                loadTable();
                                $("#addForm").trigger("reset");
                                $("#success-message").html("Data Inserted Successfully.").slideDown();
                                $("#error-message").slideUp();
                            } else {
                                $("#error-message").html("Can't Save Record.").slideDown();
                                $("#success-message").slideUp();
                            }

                        }
                    });
                }
            });

            $(document).on("click", ".delete-btn", function() {
                if (confirm("Do you really want to delete this record ?")) {
                    var studentId = $(this).data("id");
                    var element = this;

                    $.ajax({
                        url: "ajax-delete.php",
                        type: "POST",
                        data: {
                            id: studentId
                        },
                        success: function(data) {
                            if (data == 1) {
                                $(element).closest("tr").fadeOut();
                            } else {
                                $("#error-message").html("Can't Delete Record.").slideDown();
                                $("$success-message").slideUp();
                            }
                        }
                    });
                }
            });
        });
    </script>
</body>

</html>








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