Config.php

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Avoid absolute paths like C:\xampp\htdocs\myapp\logs\error.log . Instead, use __DIR__ or dirname(__DIR__) to build relative paths: config.php

This means the database host, user, or password inside config.php is typed incorrectly, or the database server itself is offline. config.php

Better yet, use a web server rule ( .htaccess for Apache, location block for nginx) to deny all requests to config.php . config.php

A basic configuration file uses standard PHP code to save information. It usually creates constants or arrays to store data. Here is a simple example: