Usernames and Passwords Are Checked Against Data in a File : Authentication « HTML « PHP

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PHP » HTML » Authentication 




Usernames and Passwords Are Checked Against Data in a File
 
<?php
if (isset($_SERVER["PHP_AUTH_USER"])) {
  $user = $_SERVER["PHP_AUTH_USER"];
  $pass = $_SERVER["PHP_AUTH_PW"];
elseif (isset($_SERVER["HTTP_AUTHORIZATION"])) {
  if (substr($_SERVER["HTTP_AUTHORIZATION"]05== "Basic") {
    $userpass = split(":",
      base64_decode(substr($_SERVER["HTTP_AUTHORIZATION"]6)));
    $user = $userpass[0];
    $pass = $userpass[1];
  }
}

$auth = false;
$pwfile = fopen("users.txt""r");
while (!feof($pwfile)) {
  $data = split(":", rtrim(fgets($pwfile, 1024)));
  if ($user == $data[0&& crypt($pass, "pw"== $data[1]) {
    $auth = true;
    break;
  }
}
fclose($pwfile);

if (!$auth) {
  header("WWW-Authenticate: Basic realm=\"PHP\"");
  header("HTTP/1.0 401 Unauthorized");
else {
  echo("Welcome, $user!");
}
?>
  
  














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8.Hardcoding the username and password into a script
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10.Only One Username and Password Is Valid
11.Usernames and Passwords Are Checked Against Data in a Database
12.Using HTTP authentication with a PHP script
13.Use database to store user name and password
14.The Username and Password Are Retrieved for Both Apache and IIS
15.Simple credentials checking:
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