php实现用户登录的简单例子。
代码：
<HTML>
<BODY>
<FORM METHOD="POST" ACTION="LoginFormAction.php">
<H2>php用户登录页面-www.jb200.com</H2>
<BR><BR>
用户名:
<BR><INPUT TYPE="TEXT" NAME="username" SIZE="16">
<BR><BR>
密 码:
<BR><INPUT TYPE="PASSWORD" NAME="password" SIZE="16">
<BR><BR> <BR><BR>
<INPUT TYPE="SUBMIT" VALUE="提交">
</FORM>
</BODY>
</HTML>
<!-- LoginFormAction.php
<?php
$passwords = array("name1" =>"pass1",
"name2" =>"pass2");
if ($password == $passwords[$username]){
setcookie("username", $username, time()+1200);
echo "<H2>授权访问成功.</H2>";
}else{
setcookie("username", "", time()-3600);
echo "<H2>用户名与密码验证失败.</H2>";
}
?>
-->