尝试在前端创建一个带有AJAX调用的表单，用户可以在其中提交帖子。

有一个文本字段、一个文本区域和一个文件字段。

以下是表格：

public function pp_html_template() {
    if ( is_user_logged_in() ) {
        return \'<h2>\' . __( \'Publish your post\', \'post-publisher\' ) . \'</h2>
        <form id="pp-form-submit" class="pp-form-submit" enctype="multipart/form-data">\' .
       wp_nonce_field( \'pp_publisher_save\', \'pp_publisher_name\' )
       . \'<div class="pp-row">
                <label for="pp_title">\' . esc_attr__( \'Title\', \'post-publisher\' ) . \'</label>
                <input type="text" id="pp_title" name="pp_title">
            </div>

            <div class="pp-row">
                <label for="pp_content">\' . esc_attr__( \'Content\', \'post-publisher\' ) . \'</label>
                <textarea name="pp_content" id="pp_content" name="pp_content" cols="30" rows="10"></textarea>
            </div>
            
            <div class="pp-row">
                <label for="pp_featured_image">\' . esc_attr__( \'Featured Image\', \'post-publisher\' ) . \'</label>
                <input type="file" id="pp_featured_image" name="pp_featured_image">
            </div>
            <input type="hidden" name="action" value="pp_html_process"/>
            <div class="pp-row">
                <input type="submit" name="pp_submit" id="pp_submit">
            </div>
        </form>\';
    }
}

public function pp_html_process() {

    // Process the form
    if ( isset( $_POST[\'pp_submit\'] ) ) {
        if ( ! isset( $_POST[\'pp_publisher_name\'] ) || ! wp_verify_nonce( $_POST[\'pp_publisher_name\'], \'pp_publisher_save\' ) ) {
            esc_attr__( \'Sorry, this action is not allowed.\', \'post-publisher\' );
            exit;
        } else {
            global $current_user;

            $user_login   = $current_user->user_login;
            $user_id      = $current_user->ID;
            $post_title   = sanitize_text_field( $_POST[\'pp_title\'] );
            $post_content = sanitize_textarea_field( $_POST[\'pp_content\'] );

            $new_post = array(
                \'post_title\'   => $post_title,
                \'post_content\' => $post_content,
                \'post_type\'    => \'post\',
                \'post_status\'  => \'draft\',
                \'post_name\'    => str_replace( \' \', \'-\', $post_title ),
            );

            $post_id = wp_insert_post( $new_post, true );

            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\' );
            }


            $featured_image = media_handle_upload( \'pp_featured_image\', $post_id );
            if ( $featured_image > 0 ) {
                update_post_meta( $post_id, \'_thumbnail_id\', $featured_image );
            }
        }
    }
}

public function __construct() {
    if ( ! is_admin() ) {
        add_shortcode( \'pp_html_template\', array( $this, \'pp_html_template\' ) );
        add_action( \'init\', array( $this, \'pp_html_process\' ) );
    }

    add_action( \'wp_ajax_pp_html_process\', array( $this, \'pp_html_process\' ) );
    add_action( \'wp_ajax_nopriv_pp_html_process\', array( $this, \'pp_html_process\' ) );
}

jQuery(document).ready(function ($) {
    $(\'#pp-form-submit\').submit(ajaxSubmit);

    function ajaxSubmit() {
        var newCustomerForm = $(this).serialize();

        jQuery.ajax({
            type: "POST",
            url: "/codeable/wp-admin/admin-ajax.php",
            data: $("#pp-form-submit").serialize(),
            success: function (response) {
                console.log(response);
            }
        });
        return false;
    }
});

任何建议都会很有帮助。