wer

<?php


/*
  Plugin Name: Custom Registration
  Plugin URI: http://code.tutsplus.com
  Description: Updates user rating based on number of posts.
  Version: 1.0
  Author: Agbonghama Collins
  Author URI: http://tech4sky.com
 */

function registration_form($fullname, $address, $email, $city, $username, $password, $re_password, $agree) {

    echo '
<div class="registration-bg">
    <div class="container">
    <form class="form-signin wow fadeInUp" action="' . $_SERVER['REQUEST_URI'] . '" method="post">

    <h2 class="form-signin-heading">Register now</h2>

    <div class="login-wrap">
        <p>Enter personal details</p>
        <input type="text" name="fullname" class="form-control" placeholder="Full Name" autofocus="" value="'.(isset($_POST['fullname']) ? $fullname: null ).'">
        <input type="text" name="address" class="form-control" placeholder="Address" autofocus="" value="'.(isset($_POST['address']) ? $address: null ).'">
        <input type="text" name="email" class="form-control" placeholder="Email" autofocus="" value="'.(isset($_POST['email']) ? $email : null ).'">
        <input type="text" name="city" class="form-control" placeholder="City / Town" autofocus="" value="'.(isset($_POST['city']) ? $city : null ).'">

        <p> Enter account details below</p>
        <input name="username" type="text" class="form-control" placeholder="User Name" autofocus="" value="'.( isset($_POST['username']) ? $username : null ) .'">
        <input name="password" type="password" class="form-control" placeholder="Password" value="'.( isset($_POST['password']) ? $password : null ).'">
        <input name="re_password" type="password" class="form-control" placeholder="Re-type Password" value="'. ( isset($_POST['re_password']) ? $re_password : null ).'">

        <label class="checkbox">
            <input name="agree" type="checkbox" value="'. ( isset($_POST['agree']) ? $agree : false ) .'"> I agree to the Terms of Service and Privacy Policy
        </label>

        <button name="submit" value="Register" class="btn btn-lg btn-login btn-block" type="submit">Submit</button>

        <div class="registration">
            Already Registered ?
            <a href="' . get_site_url() . '/wp-login.php"> Login </a>
        </div>

    </div>
    </form>
</div></div>
    ';
}

function registration_validation($fullname, $address, $email, $city, $username, $password, $re_password)  {
    global $reg_errors;
    $reg_errors = new WP_Error;
        if ( empty( $fullname ) || empty( $address ) || empty( $email )  || empty( $city ) || empty( $username ) || empty( $password ) || empty( $re_password ) ) {
        $reg_errors->add('field', 'সবগুলো ফিল্ড পূরণ করুন।');
    }


if ( 4 > strlen( $fullname ) ) {
    $reg_errors->add( 'fullname_length', 'Full Name is too short. At least 4 characters is required' );
}

if ( 4 > strlen( $address ) ) {
    $reg_errors->add( 'address_length', 'Full Name is too short. At least 4 characters is required' );
}

if ( 2 > strlen( $city ) ) {
    $reg_errors->add( 'address_length', 'Full Name is too short. At least 4 characters is required' );
}



if ( 4 > strlen( $username ) ) {
    $reg_errors->add( 'username_length', 'Username too short. At least 4 characters is required' );
}


if ( username_exists( $username ) ){
    $reg_errors->add('user_name', 'Sorry, that username already exists!');
}

if ( ! validate_username( $username ) ) {
    $reg_errors->add( 'username_invalid', 'Sorry, the username you entered is not valid' );
}

if ( 5 > strlen( $password ) ) {
        $reg_errors->add( 'password', 'Password length must be greater than 5' );
    }

if ( !is_email( $email ) ) {
    $reg_errors->add( 'email_invalid', 'Email is not valid' );
}
if ( email_exists( $email ) ) {
    $reg_errors->add( 'email', 'Email Already in use' );
}

if ( $re_password <> $password) {
    $reg_errors->add( 're_password', 'Password Not Match' );
}


if ( is_wp_error( $reg_errors ) ) {
    foreach ( $reg_errors->get_error_messages() as $error ) {
        echo '<div>';
        echo '<strong> ERROR </strong> : ';
        echo $error . '<br/>';
        echo '</div>';
    }
}

}


function complete_registration() {
    global $reg_errors, $fullname, $address, $email, $city, $username, $password, $re_password, $agree;
    if ( 1 > count( $reg_errors->get_error_messages() ) ) {
        $userdata = array(
        'fullname'      =>   $fullname,
        'address'       =>   $address,
        'user_email'    =>   $email,
        'city'          =>   $city,
        'user_login'    =>   $username,
        'password'     =>   $password,
        're_password'     =>   $re_password,
        'agree'     =>   $agree,
        );
        $user = wp_insert_user( $userdata );
        echo 'Registration complete. Goto <a href="' . get_site_url() . '/wp-login.php">login page</a>.';
    }
}


function custom_registration_function() {
    if ( isset($_POST['submit'] ) ) {
        registration_validation(
        $_POST['fullname'],
        $_POST['address'],
        $_POST['email'],
        $_POST['city'],
        $_POST['username'],
        $_POST['password'],
        $_POST['re_password'],
        $_POST['agree']
        );

        // sanitize user form input
        global $fullname, $address, $email, $city, $username, $password, $re_password, $agree;
        $fullname   =   sanitize_text_field( $_POST['fullname'] );
        $address   =   sanitize_text_field( $_POST['address'] );
        $email      =   sanitize_email( $_POST['email'] );
        $city   =   sanitize_text_field( $_POST['city'] );
        $username   =   sanitize_user( $_POST['username'] );
        $password   =   esc_attr( $_POST['password'] );
        $re_password   =   esc_attr( $_POST['re_password'] );
        $agree   =   filter_var($agree, FILTER_SANITIZE_NUMBER_INT);



        // call @function complete_registration to create the user
        // only when no WP_error is found
        complete_registration(
        $fullname,
        $address,
        $email,
        $city,
        $username,
        $password,
        $re_password,
        $agree
        );
    }

    registration_form(
        $fullname,
        $address,
        $email,
        $city,
        $username,
        $password,
        $re_password,
        $agree
    );
}



// Register a new shortcode: [cr_custom_registration]
add_shortcode( 'cr_custom_registration', 'custom_registration_shortcode' );

// The callback function that will replace [book]
function custom_registration_shortcode() {
    ob_start();
    custom_registration_function();
    return ob_get_clean();
}