cpt

<section class="same-section-spacing single-blog page-box" id="content">
    <div class="container">
        <div class="row">
            <div class="col-md-12 col-sm-12">
                <form id="contact" method="post" enctype="multipart/form-data">
                    <div class="form-group">
                        <label for="employeename"><?php _e('Enter Employee Name:', 'txtdomain') ?></label>
                        <input type="text" class="form-control" name="employeename" id="employeename" />
                        <span class="error">This field is required</span>
                    </div>
                    <div class="form-group">
                        <label for="employeedesc"><?php _e('Enter Employee Description:', 'txtdomain') ?></label>
                            <textarea name="employeedesc" class="form-control" id="employeedesc" rows="4" cols="20"></textarea>
                            <span class="error">This field is required</span>
                        </p>
                    </div>
                    <div class="form-group">
                        <label for="employee_mobile"><?php _e('Enter Employee Mobile No.:', 'txtdomain') ?></label>
                        <input type="text" class="form-control" name="employee_mobile" id="employee_mobile" />
                    </div>
                    <div class="form-group">
                        <label for="employee_mail"><?php _e('Enter Employee Mail Id:', 'txtdomain') ?></label>
                        <input type="text" class="form-control" name="employee_mail" id="employee_mail" />
                        <span class="error">A valid email address is required</span>
                    </div>
                    <div class="form-group">
                        <input type="file"  size="20"  id="thumbnail" name="thumbnail" />
                    </div>

                    <div id="contact_submit">
                        <button type="submit"  name="submit" id="submit"><?php _e('Submit', 'txtdomain') ?></button>
                    </div>
                    <input type="hidden" name="post_type" id="post_type" value="my_custom_post_type" />

                    <?php wp_nonce_field( 'cpt_nonce_action', 'cpt_nonce_field' ); ?>
                </form>
            </div>
        </div>
    </div>
</section>

<?php get_footer(); ?>

<?php
if (isset( $_POST['cpt_nonce_field'] ) && wp_verify_nonce( $_POST['cpt_nonce_field'], 'cpt_nonce_action' ) ) {

    // create post object with the form values

    $my_employeepost_args = array(

    'post_title'          => $_POST['employeename'],

    'post_content'        => $_POST['employeedesc'],

    'meta_input'          => array(
        'employee_mobile' => $_POST['employee_mobile'],
        'employee_mail'   => $_POST['employee_mail'],
    ),

    'post_status'         => 'publish',

    'post_type'           => 'employee'

    );
    // insert the post into the database

    $employeepost_id = wp_insert_post( $my_employeepost_args);

    if(!function_exists('wp_generate_attachment_metadata')){
        require_once(ABSPATH . "wp-admin" . '/includes/image.php');
        require_once(ABSPATH . "wp-admin" . '/includes/file.php');
        require_once(ABSPATH . "wp-admin" . '/includes/media.php');
    }
    if($_FILES){
        foreach($_FILES as $file => $array){
            if($_FILES[$file]['error'] !== UPLOAD_ERR_OK){
                return "Upload error :" . $_FILES[$file]['error'];
            }
            $attach_id = media_handle_upload($file,$employeepost_id);
        }
    }
    if($attach_id > 0){
        update_post_meta($employeepost_id,'_thumbnail_id',$attach_id);
    }
}
?>