Jesse Lau

<a href="https://jesselau.com/wordpress-plugin-find-and-replace-text/" rel="nofollow ugc">Find And Replace Text</a> plugin allows you to install a find & replace button to your WordPress Editor.
It supports batch finding and replacing string when you edit your posts either in TinyMCE visual or text mode.
Please note the plugin in TinyMCE visual mode also find and replace string in raw file. Which means that you should make sure there are not HTML tag to find and replace.
For example, if you find and replace “href” to “something else” in Visual mode. The plugin also change every “href” to “something else” if the HTML codes have links with “href” even you can not see the “href” string on the visual mode screen.
So please make sure that you are not replacing HTML tags in Visual mode. Or you can start from Text mode.
Remember saving your post before your find and replace anything. So even you make something mess you can always get revisions back.

Find And Replace Text

A simple plugin to install find and replace function button in WordPress editor on both visual TinyMCE and text mode.

Daniele Scasciafratte

You don’t find the PHP function or class in a WordPress system? 
This plugin add a button on the admin bar that open a simple modal!
Check the screenshots!
GitHub: <a href="https://github.com/Mte90/WP-Find-Function" rel="nofollow ugc">https://github.com/Mte90/WP-Find-Function</a>
The plugin use <code>ReflectionFunction</code> and <code>ReflectionClass</code> of PHP5 to find this info.

Find Function/Class

Search the file and row (on WordPress) that contain a PHP function or class with a click!

Find And Replace Text vs Find Function/Class