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Testing PHP scripts with MySQL access offline without changing live system - recommended workflow

this question might sound simple but I havent been able to find answers online so far. I am running a website that has php scripts accessing a mysql database. Whenever I make changes I don't want to work test the changes on the live website, so I test them on my local PHP server and a local MySQL database. Now obviously when i upload the changes I have to change the line establishing the connection

$con=mysqli_connect(...);

This is obviously not a huge deal but I bet professionals have their workflow set up in a way where this is not necessary right? Could any professional PHP developers tell me there workflow for making changes to a live site?

Thank you!

I am using PHPstorm btw.



source https://stackoverflow.com/questions/70368665/testing-php-scripts-with-mysql-access-offline-without-changing-live-system-rec
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