启用WP\\u DEBUG时，出现以下错误：

警告：wp admin/admin标题。php:9-无法修改标题信息-标题已由发送（输出开始于/Applications/MAMP/htdocs/site url.com/wp includes/functions.php:3886）require\\u once（\'wp-admin/admin header.php\'），标题

但事实确实如此only happening on wp-admin pages, not on the front end.

我在支持页面上读到过类似的内容this Codex FAQ page 而不是摆弄文本编辑器和编码，我只是从release archive 对于我站点上的同一版本（版本4.5.5-我正在升级之前进行调试），我替换了本地站点的函数版本。php的函数。我刚从发布档案下载的php文件。那没有效果。

函数的第3886行。php是下面的第三行（第一行if ( ! is_null( $message ) )):

if ( WP_DEBUG && apply_filters( \'deprecated_argument_trigger_error\', true ) ) {
        if ( function_exists( \'__\' ) ) {
            if ( ! is_null( $message ) )
                trigger_error( sprintf( __(\'%1$s was called with an argument that is <strong>deprecated</strong> since version %2$s! %3$s\'), $function, $version, $message ) );
            else
                trigger_error( sprintf( __(\'%1$s was called with an argument that is <strong>deprecated</strong> since version %2$s with no alternative available.\'), $function, $version ) );
        } else {
            if ( ! is_null( $message ) )
                trigger_error( sprintf( \'%1$s was called with an argument that is <strong>deprecated</strong> since version %2$s! %3$s\', $function, $version, $message ) );
            else
                trigger_error( sprintf( \'%1$s was called with an argument that is <strong>deprecated</strong> since version %2$s with no alternative available.\', $function, $version ) );
        }
    }