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1. Mohd Yusuf
   Member
   Posted 1 year ago #

   Hi, i am wondering if it would be easy to auto take first image in the post as the featured image in latest WordPress 3.0.

   I searched for a plugin or guides; but i couldnt find anything useful for now.

   Anyone has some ideas on this? Some reference if i were to mod it myself (i know php, i just dont have wordpress function database in my head database :P )

   Thanks..

2. Mohd Yusuf
   Member
   Posted 1 year ago #

   I ended up with my own function that i wrote to get the first image of the post and create a thumbnail on the fly.

   function catch_that_image() {
     global $post, $posts;
     $first_img = '';
     $new_img_tag = "";
   
     $output = preg_match_all('/<img.+src=[\'"]([^\'"]+)[\'"].*>/i', $post->post_content, $matches);
     $first_img = $matches [1] [0];
   
     if(empty($first_img)){ //Defines a default image with 0 width
     $new_img_tag = "<img src='./images/bargainsfrenzy.com.gif' class='alignleft' />";
     }
   
     else{
       echo $new_img_tag = "<img src='./thumb.php?gd=2&src=".$first_img."&maxw=120' class='alignleft' />";
     }
   
     return $new_img_tag;
   }

   Then i hacked the WPTouch theme (i added the catch_that_image() into functions.php) and I hacked the WPTouch's index.php to call catch_that_image() instead.

   It works for me for now; I am still open for the 'featured image' solution though..

3. mkearl
   Member
   Posted 1 year ago #

   I have been looking high and low for a plugin or something that can do this. Anyone have some ideas?

4. Mohd Yusuf
   Member
   Posted 1 year ago #

   @mkearl, so far i havent seen one. Not sure i have time to make it a proper plugin. Maybe someone could improve the code into a plugin?

5. mkearl
   Member
   Posted 1 year ago #

   Hey, give this a try (just found it). Seems to work pretty good for me right now.

   http://www.sanisoft.com/blog/2010/04/19/wordpress-plugin-automatic-post-thumbnail/

   --Matt

6. Mohd Yusuf
   Member
   Posted 1 year ago #

   Sounds good. Will give it a try later.

7. kkarpieszuk
   Member
   Posted 1 year ago #

   code in second post will cause lags, php doesnt like regexp, especially processed on big text content

   istead you should use http://codex.wordpress.org/Function_Reference/wp_get_attachment_image_src

   to get id of attachment you can use function get_children
   http://codex.wordpress.org/Function_Reference/get_children

8. Mohd Yusuf
   Member
   Posted 1 year ago #

   Thanks kkarpieszuk. That is very helpful.

9. kannan921
   Member
   Posted 1 year ago #

   Thanks mkearl. Works Perfect with Pegasus theme.

10. jimmerd
    Member
    Posted 1 year ago #

    This plugin worked great for me:
    http://wordpress.org/extend/plugins/auto-post-thumbnail/

11. Mohd Yusuf
    Member
    Posted 1 year ago #

    I tried http://wordpress.org/extend/plugins/auto-post-thumbnail/ but I wonder if I have to regenerate the thumbnail everytime i have a new post?

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