You need to have a plugin to do that. Use regular expression to loop over the posts in a function called by a post_content hook.
try searching on search and replace. I think this has been discussed before. you sound like you want a one-shot update of content, not a plugin that converts every time the content is loaded.
-d
Here is a basic plugin:
<?php
/*
Plugin Name: Plugin name goes here
Plugin URI: The plugin's URI goes here
Description: Description goes here
Author: Name goes here
Version: Version goes here
Author URI: Your URI goes here
*/
function replace_text_in_posts($content) {
return str_replace("text to find", "text to replace it with", $content);
}
add_filter('the_content', 'replace_text_in_posts');
?>
But yes, as davidchait mentioned, if this is simply a one time thing, you could always do something like an SQL query to replace the text.
Yes, I’m looking for a one-shot change. Is there a simple way to do it? If not, I can probably figure out an SQL statement that’ll cover the changes for me.
Something like:
UPDATE wp_posts SET post_content <something> WHERE post_content LIKE (SELECT post_content FROM wp_posts WHERE post_content LIKE <search string>)
You saw the post immediately above yours?
Yep. Not bad for dynamic search/replace, but not what I want.
After a bit of searching, I found this plugin:
http://thedeadone.net/?p=183
It gives you a new panel, with ‘search and replace’, and will go through and do an SQL replace of text.
It is a plugin, but not in the sense that it will execute on all posts. It simply gives you a form in your admin panel which lets you do a SQL search and replace. It does not need to run on all posts because it does it directly to the database.
I will have to add this to my list of useful plugins 🙂
Thanks, that’s positively brilliant 🙂