Ajax with PHP MySQL Form Validation Example


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 | Published By: Admin | Published On: Mar 16, 2022 | Category: PHP


Hello dev,

I am going to explain you Ajax with PHP MySQL Form Validation. You will learn how to form validation with Ajax, PHP, and MySQL. In side this article we will see how to form validation using Ajax and jQuery in PHP MySQL.

This article will give you simple example of how to PHP Ajax form submit with validation. We will use get simple PHP Mysql Form Validation using Ajax.

I will give you simple Example how to Jquery and Ajax form validation PHP MySQL so follow this and learn Ajax with PHP MySQL Form Validation.

So, let's see bellow solution:

index.php
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
    <title>Ajax with PHP MySQL Form Validation - Mywebtuts.com</title>
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css">
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css" integrity="sha512-9usAa10IRO0HhonpyAIVpjrylPvoDwiPUiKdWk5t3PyolY1cOd4DSE0Ga+ri4AuTroPR5aQvXU9xC6qOPnzFeg==" crossorigin="anonymous" referrerpolicy="no-referrer" />
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
    <style>
        .success span {
            color: green;
        }

        span.error {
            color: red;
        }

        i {
            font-weight: 900;
            font-family: 'Font Awesome 5 Free';
        }
    </style>
</head>
<body>
    <div class="container p-5">
        <div class="col-lg-12">
            <div class="card w-75 m-auto">
                <div class="card-header text-center bg-danger text-white">
                    <h4>Ajax with PHP MySQL Form Validation - Mywebtuts.com</h4>
                </div>
                <div class="card-body">
                    <div id="message"></div>
                        <form method="POST" id="myform">
                            <div class="row">
                                <div class="form-group col-md-6">
                                    <label for="user1"><strong>Username :</strong><span class="text-danger"> *</span></label>
                                    <input type="text" name="username" id="username" class="form-control">
                                    <span class="error" id="username_err"> </span>
                                </div>
                                <div class="form-group col-md-6">
                                    <label for="user1"><strong>Email : </strong><span class="text-danger"> *</span></label>
                                    <input type="email" name="email" id="email" class="form-control">
                                    <span class="error" id="email_err"> </span>
                                </div>
                                <div class="form-group col-md-12">
                                    <label for="mob"><strong>Mobile : </strong><span class="text-danger"> *</span></label>
                                    <input type="text" name="mobile" id="mobile" class="form-control">
                                    <span class="error" id="mobile_err"> </span>
                                </div>

                                <div class="form-group col-md-12">
                                    <label for="password"><strong>Password : </strong><span class="text-danger"> *</span></label>
                                    <div class="input-group">
                                        <input type="password" name="password" id="password" class="form-control">
                                        <div class="input-group-append">
                                            <span class="input-group-text" onclick="password_show_hide();">
                                                <i class="fas fa-eye" id="show_eye"></i>
                                                <i class="fas fa-eye-slash d-none" id="hide_eye"></i>
                                            </span>
                                        </div>
                                    </div>
                                    <span class="error" id="password_err"> </span>
                                </div>

                                <div class="form-group col-md-12">
                                    <label for="conpassword"><strong>Confirm Password : </strong><span class="text-danger"> *</span></label>
                                    <input type="password" name="cpass" id="cpassword" class="form-control">
                                    <span class="error" id="cpassword_err"> </span>
                                </div>

                                <div class="col-md-12 d-flex justify-content-center">
                                    <button type="button" id="submitbtn" class="btn btn-success  ">Submit</button>
                                </div>
                            </div>
                        </form>
                </div>
            </div>
        </div>
    </div>
    <script type="text/javascript">
        $(document).ready(function () {
            $('#username').on('input', function () {
                checkuser();
            });
            $('#email').on('input', function () {
                checkemail();
            });
            $('#password').on('input', function () {
                checkpass();
            });
            $('#cpassword').on('input', function () {
                checkcpass();
            });
            $('#mobile').on('input', function () {
                checkmobile();
            });

            $('#submitbtn').click(function () {
                if (!checkuser() && !checkemail() && !checkmobile() && !checkpass() && !checkcpass()) {
                    console.log("er1");
                    $("#message").html('<div class="alert alert-warning">Please fill all required field</div>');
                } else if (!checkuser() || !checkemail() || !checkmobile() || !checkpass() || !checkcpass()) {
                    $("#message").html('<div class="alert alert-warning">Please fill all required field</div>');
                    console.log("er");
                }
                else {
                    console.log("ok");
                    $("#message").html("");
                    var form = $('#myform')[0];
                    var data = new FormData(form);

                    $.ajax({
                        type: "POST",
                        url: "process.php",
                        data: data,
                        processData: false,
                        contentType: false,
                        cache: false,
                        async: false,
                        beforeSend: function () {
                            $('#submitbtn').html('<i class="fa-solid fa-spinner fa-spin"></i>');
                            $('#submitbtn').attr("disabled", true);
                            $('#submitbtn').css({ "border-radius": "50%" });
                        },

                        success: function (data) {
                            $('#message').html(data);
                        },
                        
                        complete: function () {
                            setTimeout(function () {
                                $('#myform').trigger("reset");
                                $('#submitbtn').html('Submit');
                                $('#submitbtn').attr("disabled", false);
                                $('#submitbtn').css({ "border-radius": "4px" });
                            }, 200);
                        }
                    });
                }
            });
        });

        function checkuser() {
            var pattern = /^[A-Za-z0-9]+$/;
            var user = $('#username').val();
            var validuser = pattern.test(user);

            if (user == '') {
                $('#username_err').html('Username Field is required');
                return false;
            }else if ($('#username').val().length < 4) {
                $('#username_err').html('Username length is too short');
                return false;
            } else if (!validuser) {
                $('#username_err').html('Username should be a-z ,A-Z only');
                return false;
            } else {
                $('#username_err').html('');
                return true;
            }
        }

        function checkemail() {
            var pattern1 = /^([\w-\.]+@([\w-]+\.)+[\w-]{2,4})?$/;
            var email = $('#email').val();
            var validemail = pattern1.test(email);

            if (email == "") {
                $('#email_err').html('Email field is required');
                return false;
            } else if (!validemail) {
                $('#email_err').html('Invalid Email');
                return false;
            } else {
                $('#email_err').html('');
                return true;
            }
        }

        function checkpass() {
            console.log("sass");
            var pattern2 = /^(?=.*\d)(?=.*[!@#$%^&*])(?=.*[a-z])(?=.*[A-Z]).{8,}$/;
            var pass = $('#password').val();
            var validpass = pattern2.test(pass);

            if (pass == "") {
                $('#password_err').html('Password field is required');
                return false;
            } else if (!validpass) {
                $('#password_err').html('Minimum 5 and upto 15 characters, at least one uppercase letter, one lowercase letter, one number and one special character:');
                return false;

            } else {
                $('#password_err').html("");
                return true;
            }
        }

        function checkcpass() {
            var pass = $('#password').val();
            var cpass = $('#cpassword').val();

            if (cpass == "") {
                $('#cpassword_err').html('Confirm Password field is required');
                return false;
            } else if (pass !== cpass) {
                $('#cpassword_err').html('Confirm Password did not match');
                return false;
            } else {
                $('#cpassword_err').html('');
                return true;
            }
        }

        function checkmobile() {
            var mobile = $("#mobile").val();

            if (mobile == '') {
                $("#mobile_err").html("Mobile filed is required");
                return false;

            }else if (!$.isNumeric(mobile)) {
                $("#mobile_err").html("only number is allowed");
                return false;
            } else if (mobile.length != 10) {
                $("#mobile_err").html("Only Valide 10 digit");
                return false;
            }
            else {
                $("#mobile_err").html("");
                return true;
            }
        }

        function password_show_hide() {
            console.log('ok');
            var x = document.getElementById("password");
            var show_eye = document.getElementById("show_eye");
            var hide_eye = document.getElementById("hide_eye");
            hide_eye.classList.remove("d-none");

            if (x.type === "password") {
                x.type = "text";
                show_eye.style.display = "none";
                hide_eye.style.display = "block";
            } else {
                x.type = "password";
                show_eye.style.display = "block";
                hide_eye.style.display = "none";
            }
        }
    </script>
</body>
</html>
process.php
<?php
    $con = mysqli_connect("localhost", "root", "", "demos");

    if (!$con) {
        echo "connection error";
    }

    $name = htmlspecialchars(trim($_POST['username']));
    $email = htmlspecialchars(trim($_POST['email']));
    $pass = htmlspecialchars(trim($_POST['password']));
    $mobile = htmlspecialchars(trim($_POST['mobile']));

    if (empty($name) || empty($email) || empty($pass) || empty($mobile)) {
        echo '<div class="alert alert-success">Please fill all required field</div>';
    }else {
        $sql = "insert into users(username,email,password,mobile) values ('$name','$email','$pass','$mobile')";
        if ($res = mysqli_query($con, $sql)) {
            echo '<div class="alert alert-success">Data Successfully Inserted</div>';
        }else {
            echo '<div class="alert alert-warning">Data Not Inserted</div>';
        }
    }
?>
Output:

It will help you...
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