PHP first certification

PHP first authentication

<code><span><span><?php</span><span>// User name and password for authentication</span><span>$username</span> = <span>'rock'</span>;
  <span>$password</span> = <span>'roll'</span>;

  <span>if</span> (!<span>isset</span>(<span>$_SERVER</span>[<span>'PHP_AUTH_USER'</span>]) || !<span>isset</span>(<span>$_SERVER</span>[<span>'PHP_AUTH_PW'</span>]) ||
    (<span>$_SERVER</span>[<span>'PHP_AUTH_USER'</span>] != <span>$username</span>) || (<span>$_SERVER</span>[<span>'PHP_AUTH_PW'</span>] != <span>$password</span>)) {
    <span>// The user name/password are incorrect so send the authentication headers</span>
    header(<span>'HTTP/1.1 401 Unauthorized'</span>);
    header(<span>'WWW-Authenticate: Basic realm="Guitar Wars"'</span>);
    <span>exit</span>(<span>'<h2>Guitar Wars</h2>Sorry, you must enter a valid user name and password to access this page.'</span>);
  }
<span>?></span></span></code>

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The above has introduced the first PHP certification, including aspects of the content. I hope it will be helpful to friends who are interested in PHP tutorials.