如何在WordPress发布文章两周后用PHP隐藏div标签（无需JS）

Hey there, let's solve this problem properly. You want to hide a specific div on WordPress posts two weeks after they're published, using only PHP (no JavaScript)—totally doable. Here are two approaches depending on where your div is located:

1. For Static Divs in Your Theme Template #

If the div is hardcoded into your theme files (like single.php, page.php, or a custom template), wrap it in a PHP conditional check that compares the post's publish time to the current time.

Step-by-Step Code Implementation: #

<?php
// Get the post's publish timestamp (U returns Unix timestamp)
$post_publish_time = get_post_time('U', true, get_the_ID());
// Calculate two weeks in seconds (14 days × 24h × 60m × 60s)
$two_weeks = 14 * 24 * 60 * 60;
// Get current WordPress timestamp (respects your site's timezone settings)
$current_time = current_time('timestamp');

// Only show the div if less than two weeks have passed
if ($current_time - $post_publish_time < $two_weeks) {
?>
    <!-- Your target div goes here -->
    <div class="your-target-div">
        This content will only be visible for the first two weeks after publishing!
    </div>
<?php
}
?>

Key Notes: #

• Edit the correct template file: For single posts, use single.php; for custom post types, use single-{post-type}.php (replace {post-type} with your CPT slug).
• Timezones are handled automatically: WordPress uses the timezone you set in Settings > General, so no extra conversion is needed.
• Always use a child theme to modify templates—this prevents your changes from being overwritten when the parent theme updates.

2. For Divs Inside Post Content #

If the div is part of the post content (added via the block editor or classic editor), use a the_content filter to strip it out once the two-week mark passes.

Step-by-Step Code Implementation: #

Add this code to your theme's functions.php file (or a custom plugin if you prefer):

add_filter('the_content', 'hide_div_after_two_weeks_in_content');

function hide_div_after_two_weeks_in_content($content) {
    // Only run this on single post pages
    if (!is_single()) {
        return $content;
    }

    // Get post publish time and current time
    $post_publish_time = get_post_time('U', true);
    $two_weeks = 14 * 24 * 60 * 60;
    $current_time = current_time('timestamp');

    // If two weeks have passed, remove the target div
    if ($current_time - $post_publish_time >= $two_weeks) {
        // Replace this selector with your div's identifier (class or ID)
        // Example: Removes divs with class "expiring-content"
        $content = preg_replace('/<div class="expiring-content">(.*?)<\/div>/s', '', $content);
    }

    return $content;
}

How to Use This: #

When adding the div to your post content, give it the class you specified in the filter (e.g., expiring-content):

<div class="expiring-content">
    This content will disappear two weeks after the post is published.
</div>

Key Notes: #

• The regex pattern uses the s modifier to match content across multiple lines.
• If you need to target an ID instead of a class, update the regex to: /<div id="expiring-content">(.*?)<\/div>/s
• Test the regex thoroughly to make sure it only removes the intended div and no other content.

内容的提问来源于stack exchange，提问作者Jack