When you deliver WordPress based website to the client who is not technical as he can manage his/her website by using WordPress Admin panel, then you should disable the theme editor option from admin panel. It will stop to make any changes directly in code by using WordPress Admin panel.
Copy the below code paste it into the functions.php file from your current activated theme folder.
// Disable the theme / plugin text editor in Admin
Prem Tiwari is the founder of FreeWebMentor.com and also a professional developer who has vast experience in PHP and open source technologies. Apart from this, he is a blogger by hobby and also he has been a regular speaker of WordPress sessions in various IT Companies. View all posts by Prem Tiwari
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