所以我有一个php语句：

$latest_pollsid 包含一个数字，该数字在每次提交特定表单时增加1。我将此语句解读为多个函数，对于其中一个函数，我希望它捕获当前时间的值，而不是更新。本质上，我希望它在函数运行时读取语句，获取数字，然后显示它，即使语句本身的值发生变化，它也不会在将来发生变化。有没有办法用PHP做到这一点？

情景：

当用户创建一个新的民意调查时，我正在后台创建一个帖子，其中嵌入了他们刚刚用一个短代码进行的民意调查。短代码使用最新的民意测验，通常意味着如果我现在创建民意测验，明天创建民意测验，明天两篇文章都将显示明天的民意测验。《今日邮报》不会显示今天的民意调查。

用于创建背景帖子的代码：

function programmatically_create_post() {

    // Initialize the page ID to -1. This indicates no action has been taken.
    $post_id = -1;

    // Setup the author, slug, and title for the post
    $author_id = 1;
    $slug = \'example-post\';
    $title = \'My Example Background Post\';

    // If the page doesn\'t already exist, then create it
    if( null == get_page_by_title( $title ) ) {

        // Set the post ID so that we know the post was created successfully
        $pollq_question = wp_kses_post( trim( $_POST[\'pollq_question\'] ) );
        $post_id = wp_insert_post(
            array(
                \'comment_status\'    =>  \'open\',
                \'ping_status\'       =>  \'closed\',
                \'post_author\'       =>  $author_id,
                \'post_name\'         =>  $slug,
                \'post_title\'        =>  $pollq_question,
                \'post_status\'       =>  \'publish\',
                \'post_type\'         =>  \'post\',
                \'post_content\'      =>  \'[poll id="\' . $latest_pollid . \'"]\'
            )
        );

    // Otherwise, we\'ll stop
    } else {

            // Arbitrarily use -2 to indicate that the page with the title already exists
            $post_id = -2;

    } // end if

} // end programmatically_create_post
add_filter( \'after_setup_theme\', \'programmatically_create_post\' );

function polls_latest_id() {
    global $wpdb;
    $poll_id = $wpdb->get_var("SELECT pollq_id FROM $wpdb->pollsq WHERE pollq_active = 1 ORDER BY pollq_timestamp DESC LIMIT 1");
    return intval($poll_id);
}

此页面列出了所有具有正确id的投票，但我对PHP知之甚少，因此我很难解释这一点：

echo "<tr id=\\"poll-$poll_id\\" $style>\\n";
                    echo \'<td><strong>\'.number_format_i18n($poll_id).\'</strong></td>\'."\\n";
                    echo \'<td>\';
                    if($current_poll > 0) {
                        if($current_poll == $poll_id) {
                            echo \'<strong>\'.__(\'Displayed:\', \'wp-polls\').\'</strong> \';
                        }
                    } elseif($current_poll == 0) {
                        if($poll_id == $latest_poll) {
                            echo \'<strong>\'.__(\'Displayed:\', \'wp-polls\').\'</strong> \';
                        }
                    } else if(in_array($poll_id, $multiple_polls)) {
                            echo \'<strong>\'.__(\'Displayed:\', \'wp-polls\').\'</strong> \';
                    }