User Login form Front End WordPress

functions.php

<?php function login_form_frontend($args = array()) {
    $defaults = array('echo' => true,
        'redirect' => ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'], // Default redirect is back to the current page
        'form_id' => 'loginformfrontend',
        'label_username' => __('Username'),
        'label_password' => __('Password'),
        'label_remember' => __('Remember Me'),
        'label_log_in' => __('SIGN IN'),
        'id_username' => 'user_login',
        'id_password' => 'user_pass',
        'id_remember' => 'rememberme',
        'id_submit' => 'wp-submit',
        'remember' => false,
        'value_username' => '',
            // 'value_remember' => false, // Set this to true to default the "Remember me" checkbox to checked
    );
    $args = wp_parse_args($args, apply_filters('login_form_defaults', $defaults));
    $form = '
        <form name="' . $args['form_id'] . '" id="' . $args['form_id'] . '" action="' . esc_url(site_url('wp-login.php', 'login_post')) . '" method="post" >
            ' . apply_filters('login_form_top', '', $args) . '<fieldset>
            <label><i class="fa fa-user"></i> Login Form</label>
                <input type="text" name="log" id="' . esc_attr($args['id_username']) . '" class="input-field" value="' . esc_attr($args['value_username']) . '" size="20" placeholder="Email Address" />
                <input placeholder="Password" type="password" name="pwd" id="' . esc_attr($args['id_password']) . '" class="input-field" value="" size="20" />
                <input type="submit" name="wp-submit" id="' . esc_attr($args['id_submit']) . '" class="button" value="' . esc_attr($args['label_log_in']) . '" />
                <input type="hidden" name="redirect_to" value="' . esc_url($args['redirect']) . '" />' . apply_filters('login_form_middle', '', $args) . '
                ' . apply_filters('login_form_bottom', '', $args) . '
        </fieldset></form>';
    if ($args['echo'])
        echo $form;
    else
        return $form;
}