HowTo: Connect to MySQL from PHP Using Different Files

Question

Ok so I did a search to see if there other posts that explain this completely...

Well i'm here now :)

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SCENARIO:

1. I want to connect to your mysql database via html.
2. I DO NOT want to set the parameters explicitly everytime I wish to perform a query
3. I have multiple users and (ofcourse) you want their login details available throughout the application

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Answer 1

1. You'll need PHP to make connection inside connection.php file

   <?php
   
   $conn= mysqli_connect("localhost","ID","Password","Database_name");
   

   Then in each file you put require('connection.php'); and there is no way than that for making a connection to MySQL database.

2. Set queries as functions and send the thing you want to search for as a variable.

3. Use $_Session or $_Cookie once the user enter his email/password.