Add db secrets management

includes/.gitignore

@@ -0,0 +1 @@
+.env

includes/dbh.inc.php

@@ -2,6 +2,9 @@
 
 declare(strict_types=1);
 
+require_once "var_loading.inc.php";
+loadEnvironment(".env");
+
 $host = "${{ secrets.DB_HOST }}";
 $protocol = "${{ secrets.DB_PROTOCOL }}";
 $dbname = "${{ secrets.DB_NAME }}";

includes/var_loading.inc.php

@@ -0,0 +1,40 @@
+<?php
+function loadEnvironment($path) {
+    if (!file_exists($path)) {
+        throw new Exception(".env file not found at: $path");
+    }
+    
+    # File method, parses each line as an array element
+    $lines = file($path, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
+    
+    # Loops each line
+    foreach ($lines as $line) {
+        # First removes white spaces, then searches if the first character is a comment, skips iteration line.
+        // Skip comments
+        if (strpos(trim($line), '#') === 0) continue;
+        
+        # Continues if it finds an = sign somewhere
+        // Parse KEY=value
+        if (strpos($line, '=') !== false) {
+            # Creates a list, array alike, the items are set by splitting (explode()) each line by the equal sign.
+            list($key, $value) = explode('=', $line, 2);
+            
+            # Removes whitespaces and quotes
+            $key = trim($key);
+            $value = trim($value, '"\''); // Remove quotes
+            
+            # Stores each value in $_ENV supergglobal
+            $_ENV[$key] = $value;
+
+            # Not sure what this does
+            putenv("$key=$value");
+        }
+    }
+}
+
+// Load at application bootstrap
+# Not sure either
+loadEnvironment(__DIR__ . '/.env');
+
+// First found on ttps://levelup.gitconnected.com/how-to-securely-handle-production-credentials-in-php-without-exposing-them-in-git-237f4fd5cf91,
+// Own comments using #