first commit

config/.htaccess

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+AuthName "pwd"
+AuthType Basic
+AuthUserFile /var/www/web712/html/config/.htpasswd
+require valid-user

config/.htpasswd

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+admin:$1$mJMmTGPR$/db9TUBE9VIYJMUcNezBk0

config/datenbankanbindung.php

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+<?php
+//--Funktion-Datenbankverbindung--------------------------------------------------------------------
+
+   function dbconnect() //--Prozedur - kein return-Wert
+    {
+    
+     $db = @new mysqli( 'localhost', 'root', '', 'survey' );
+     $db->query("SET NAMES 'utf8'");
+     return $db;
+    }
+
+//--------------------------------------------------------------------------------------------------
+?>

config/func_cryption.php

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+<?php
+function cryption($hash, $method)
+{
+    // Method e=encrypt, d=decrypt
+    // Store the cipher method 
+    # Für PHP 7.1 noch 128
+    $ciphering = "AES-128-CTR";
+    
+    
+    // Use OpenSSl Encryption method 
+    $iv_length = openssl_cipher_iv_length($ciphering);
+    $options   = 0;
+    
+    // Store the encryption key 
+    $key = "!O3JoDLnBI6#[M%4S!sZH1zU0?8+5C_!}";
+    
+    // Non-NULL Initialization Vector for encryption 
+    $vector = '0843413489572156';
+    
+    if ($method == 'e') {
+        // Use openssl_encrypt() function to encrypt the data 
+        $encryption = openssl_encrypt($hash, $ciphering, $key, $options, $vector);
+        return $encryption;
+    }
+    // Store a string into the variable which 
+    // need to be Encrypted 
+    
+    
+    if ($method == 'd') {
+        // Use openssl_decrypt() function to decrypt the data 
+        $decryption = openssl_decrypt($hash, $ciphering, $key, $options, $vector);
+        
+        # kryptische Returnwerte bei falschem String entfernen: Nur Zahlen und Buchstaben
+        #$decryption = preg_replace('![^0-9a-zA-Z]!', '', $decryption);
+        
+        # https://stackoverflow.com/questions/1176904/php-how-to-remove-all-non-printable-characters-in-a-string
+        $decryption = preg_replace('/[\x00-\x1F\x7F-\xFF]/', '', $decryption);
+        
+        return $decryption;
+    }
+}
+#$crypt = cryption("!DWdMiU#", 'e');
+#echo $crypt;
+#echo "<br>";
+#echo cryption($crypt, 'd');
+?>