有一个关于允许WorpPress v.4.4.1的空评论的问题
为此，我使用“pre\\u comment\\u on\\u post”操作。在WP 4.3.1中，我可以轻松做到这一点：
if (isset($_POST[\'comment\']) && $_POST[\'comment\'] == "") {
$_POST[\'comment\'] = "dummy content";
}
稍后将通过另一个add\\u filter调用筛选出虚拟内容。。。wp 4.3.1中的wp评论帖子。php是以下代码行：
$comment_content = ( isset($_POST[\'comment\']) ) ? trim($_POST[\'comment\']) : null;
因此，我的add\\u操作非常有效；）
现在有了wp 4.4.1，核心开发人员更改了代码，并在/wp includes/comment中引入了一个4.4.0的新功能。php在线2627
function wp_handle_comment_submission( $comment_data ) {
$comment_post_ID = $comment_parent = 0;
$comment_author = $comment_author_email = $comment_author_url = $comment_content = $_wp_unfiltered_html_comment = null;
if ( isset( $comment_data[\'comment_post_ID\'] ) ) {
$comment_post_ID = (int) $comment_data[\'comment_post_ID\'];
}
if ( isset( $comment_data[\'author\'] ) && is_string( $comment_data[\'author\'] ) ) {
$comment_author = trim( strip_tags( $comment_data[\'author\'] ) );
}
if ( isset( $comment_data[\'email\'] ) && is_string( $comment_data[\'email\'] ) ) {
$comment_author_email = trim( $comment_data[\'email\'] );
}
if ( isset( $comment_data[\'url\'] ) && is_string( $comment_data[\'url\'] ) ) {
$comment_author_url = trim( $comment_data[\'url\'] );
}
if ( isset( $comment_data[\'comment\'] ) && is_string( $comment_data[\'comment\'] ) ) {
$comment_content = trim( $comment_data[\'comment\'] );
}
if ( isset( $comment_data[\'comment_parent\'] ) ) {
$comment_parent = absint( $comment_data[\'comment_parent\'] );
}
if ( isset( $comment_data[\'_wp_unfiltered_html_comment\'] ) && is_string( $comment_data[\'_wp_unfiltered_html_comment\'] ) ) {
$_wp_unfiltered_html_comment = trim( $comment_data[\'_wp_unfiltered_html_comment\'] );
}
$post = get_post( $comment_post_ID );
if ( empty( $post->comment_status ) ) {
/**
* Fires when a comment is attempted on a post that does not exist.
*
* @since 1.5.0
*
* @param int $comment_post_ID Post ID.
*/
do_action( \'comment_id_not_found\', $comment_post_ID );
return new WP_Error( \'comment_id_not_found\' );
}
// get_post_status() will get the parent status for attachments.
$status = get_post_status( $post );
if ( ( \'private\' == $status ) && ! current_user_can( \'read_post\', $comment_post_ID ) ) {
return new WP_Error( \'comment_id_not_found\' );
}
$status_obj = get_post_status_object( $status );
if ( ! comments_open( $comment_post_ID ) ) {
/**
* Fires when a comment is attempted on a post that has comments closed.
*
* @since 1.5.0
*
* @param int $comment_post_ID Post ID.
*/
do_action( \'comment_closed\', $comment_post_ID );
return new WP_Error( \'comment_closed\', __( \'Sorry, comments are closed for this item.\' ), 403 );
} elseif ( \'trash\' == $status ) {
/**
* Fires when a comment is attempted on a trashed post.
*
* @since 2.9.0
*
* @param int $comment_post_ID Post ID.
*/
do_action( \'comment_on_trash\', $comment_post_ID );
return new WP_Error( \'comment_on_trash\' );
} elseif ( ! $status_obj->public && ! $status_obj->private ) {
/**
* Fires when a comment is attempted on a post in draft mode.
*
* @since 1.5.1
*
* @param int $comment_post_ID Post ID.
*/
do_action( \'comment_on_draft\', $comment_post_ID );
return new WP_Error( \'comment_on_draft\' );
} elseif ( post_password_required( $comment_post_ID ) ) {
/**
* Fires when a comment is attempted on a password-protected post.
*
* @since 2.9.0
*
* @param int $comment_post_ID Post ID.
*/
do_action( \'comment_on_password_protected\', $comment_post_ID );
return new WP_Error( \'comment_on_password_protected\' );
} else {
/**
* Fires before a comment is posted.
*
* @since 2.8.0
*
* @param int $comment_post_ID Post ID.
*/
do_action( \'pre_comment_on_post\', $comment_post_ID );
}
// If the user is logged in
$user = wp_get_current_user();
if ( $user->exists() ) {
if ( empty( $user->display_name ) ) {
$user->display_name=$user->user_login;
}
$comment_author = $user->display_name;
$comment_author_email = $user->user_email;
$comment_author_url = $user->user_url;
$user_ID = $user->ID;
if ( current_user_can( \'unfiltered_html\' ) ) {
if ( ! isset( $comment_data[\'_wp_unfiltered_html_comment\'] )
|| ! wp_verify_nonce( $comment_data[\'_wp_unfiltered_html_comment\'], \'unfiltered-html-comment_\' . $comment_post_ID )
) {
kses_remove_filters(); // start with a clean slate
kses_init_filters(); // set up the filters
}
}
} else {
if ( get_option( \'comment_registration\' ) ) {
return new WP_Error( \'not_logged_in\', __( \'Sorry, you must be logged in to post a comment.\' ), 403 );
}
}
$comment_type = \'\';
if ( get_option( \'require_name_email\' ) && ! $user->exists() ) {
if ( 6 > strlen( $comment_author_email ) || \'\' == $comment_author ) {
return new WP_Error( \'require_name_email\', __( \'<strong>ERROR</strong>: please fill the required fields (name, email).\' ), 200 );
} elseif ( ! is_email( $comment_author_email ) ) {
return new WP_Error( \'require_valid_email\', __( \'<strong>ERROR</strong>: please enter a valid email address.\' ), 200 );
}
}
if ( \'\' == $comment_content ) {
return new WP_Error( \'require_valid_comment\', __( \'<strong>ERROR</strong>: please type a comment.\' ), 200 );
}
$commentdata = compact(
\'comment_post_ID\',
\'comment_author\',
\'comment_author_email\',
\'comment_author_url\',
\'comment_content\',
\'comment_type\',
\'comment_parent\',
\'user_ID\'
);
$comment_id = wp_new_comment( wp_slash( $commentdata ) );
if ( ! $comment_id ) {
return new WP_Error( \'comment_save_error\', __( \'<strong>ERROR</strong>: The comment could not be saved. Please try again later.\' ), 500 );
}
return get_comment( $comment_id );
}
并且超级全局$\\u POST被传递给wp comments POST中的函数。php
$comment = wp_handle_comment_submission( wp_unslash( $_POST ) );
因此，现在在wp 4.4.1中，为$\\u POST[\'comment\']赋值没有任何效果，因为在新函数中，它们将$\\u POST[\'comment\']映射到$comment\\u内容
因此，我想在我的add\\u action函数中简单地将$comment\\u内容设置为全局：
function action_pre_comment_on_post($comment_post_ID) {
global $comment_content;
if (isset($_POST[\'comment\']) && $_POST[\'comment\'] == "") {
$comment_content = "dummy comment";
return;
}
}
但遗憾的是，这不起作用：（因为$comment\\u内容没有在全局范围内声明(
如果我修改核心代码并在全局范围内定义$comment\\u内容：
function wp_handle_comment_submission( $comment_data ) {
global $comment_content;
我的add\\u action函数现在可以向$comment\\u内容传递一个值，一切正常。但您实际上不应该修改核心代码！我应该在函数中声明$comment\\u content global吗。php或通过add\\u操作“init”？或
所以你怎样才能最好地解决这个案子？
感谢您的帮助；）
感谢（&A）；所有bestbecki
