search and add in wordpress content

Question

I have a wordpress plugin that displays videos through a shortcode. My problem is it assigns the div's with ID's such as video-1-player, video-2-player, etc. I need to create a function that searches my content for <div id="video-(any number here)-player"> and adds a class inside the div.

I found this code which searches for the first image and than you can print it. My PHP isn't good enough for me to edit it for how i need. Maybe this will help you?

function catch_that_image() {
  global $post, $posts;
  $first_img = '';
  ob_start();
  ob_end_clean();
  $output = preg_match_all('/<img.+src=[\'"]([^\'"]+)[\'"].*>/i', $post->post_content, $matches);
  $first_img = $matches [1] [0];

  if(empty($first_img)){ //Defines a default image
    $first_img = "/images/default.jpg";
  }
  return $first_img;
}

Answer 1

Try the Search and Replace plugin: http://wordpress.org/extend/plugins/search-and-replace/

This searches for strings and will allow you to search for every instance of video-x-player, using a regex for the number. If you don't want to use regex searching on video- will bring up every instance that is already in your database.

If you intend to keep using that video plugin you may wish to edit the plugin to give you the ID's you want or to automatically add class names.

Answer 2

Why do you need a class inside the <div>? Are you trying to apply CSS styles to it?

If so, why not just use CSS? For example:

div[id^="video-"] {} 

...will target any DIV whose ID value starts with "video-"