x500.net

Please provide a link to the code placed in WP.

You need to bind the function to a particular filter that way:

add_filter('content_save_pre', 'mySearchAndReplace');

Place it just below the function.

You need to go through the WordPress filter list to find one responsible for filtering section you’re after.

Yes, you need to apply filter to every section you want to replace string within.
Alternatively, you can preg_replace the entire html sent to the browser, but it’s not recommended if you care about performance at all.

function mySearchAndReplace($content) {
    $str='https://www.example.com/login';
    $replacement='https://www.example.com/login?redirect_to=https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];

    $content = preg_replace(
            '@' . preg_quote($str,'@') . '@',
            $replacement,
            $content
        );
    return $content;
}

To test the function you can do:

$content='My post content with the https://www.example.com/login string included';
echo mySearchAndReplace($content);

You’ll need to add filter that will use the function.
If you want to apply filter on a post content when it’s saved, use content_save_pre filter.
If you prefer not to manipulate any DB entries but just want to replace the sring before it’s printed to the screen, the_content filter may come in handy.

More about WordPress filters here

in your functions.php file add
add_filter('content_save_pre', 'mySearchAndReplace');

If you want to change all posts to different post type, you can try sql:
UPDATE wp_posts SET post_type="my_new_post_type" where post_type="post";

Please bare in mind that it’ll change all posts in the database with post_type set to post.

add_action is a global function, read more here

Something like this plugin?

wp_video_shortcode takes more arguments from what I can see here

$args=[
    'autoplay' => true
]
wp_video_shortcode($args)

paste the category template code, the if (have_posts()) part up to endif;

If it’s an image inserted into post content, click on the Add Media button above the post content, select/upload image, then from the right-hand side panel from ATTACHMENT DISPLAY SETTINGS section (scroll down) select ‘Link To’ -> Custom Url and past url in the box displayed.

WordPress Codex – comment_post

You can try this:

add_action('comment_post', 'notify_author_of_reply', 10, 2);

function notify_author_of_reply($comment_id, $approved){
  if($approved){
    $comment = get_comment($comment_id);
    if($comment->comment_parent){
      $parent_comment = get_comment($comment->comment_parent);
      wp_mail($parent_comment->comment_author_email, 'Hello', 'Dude you got a reply...');
    }
  }
}

source: https://wordpress.stackexchange.com/a/36590

alternatively, you may be interested in this plugin

What are you trying to achieve?
Dynamic creation of links on a posts page or a static reference to home page with navigation to its sections?

try with no http protocol declaration and make sure the url starts with /

/#service
/#section2
/#section3

<?php
//  so you declare a new variable here called $myLongDescription
//  then assign to it whatever the get_post_meta function returns

    $myLongDescription = get_post_meta($post ->ID, 'long-desc',true);
?>
<p id="long-desc">
//  and here is the wpautop formatting the string
    <?php echo wpautop( $myLongDescription, false ); ?>
</p>

Can you find paginate_links function in index.php or category.php file?