Now no need to hack theme’s function.php file, you have more easy option to add hacks in WordPress. Hacking function file is easy but keeping those hacks safe is not, everytime you update or activate another theme you have to edit its function file by adding all those hacks back which you were using before.
So if you like to avoid these hacking steps then install and activate Code Snippets, this plugin lets you add code snippets without touching your theme’s function file. It works both in single and multisite install.
In WordPress multisite after if you network activate this plugin it enables a special interface for running snippets across entire network. You don’t need to include `<?php`, `<?` or `?> tags, just copy the content inside these tags. View FAQs