php 用户登录代码
<?php
error_reporting(0);
if (isset($_post['post']) && $_post['post'] == "1") {
$mysql_servername = "localhost";
$mysql_username = "root";
$mysql_password = "";
$mysql_database = "peng";
mysql_connect($mysql_servername, $mysql_username, $mysql_password);
mysql_select_db($mysql_database);
$name = $_post['name'];
$passowrd = $_post['password'];
if ($name && $passowrd) {
$sql = "select * from liuyanban where name = '$name' and password='$passowrd'";
$res = mysql_query($sql);
$rows = mysql_num_rows($res);
if ($rows) {
header("refresh:0;url=a.htm");
exit;
}
echo "<script language=javascript>alert('用户名密码错误');history.back();</script>";
} else {
echo "<script language=javascript>alert('用户名密码不能为空');history.back();</script>";
}
} else {
?>
<html>
<body>
<form name="login" action="login.php" method=post>
<input type=hidden name="post" value=1>
用户名<input type=text name="name">
<p>密码<input type=password name="password">
<p>
<input name="log" type=submit value="登录">
</form>
</body>
</html>
<?php
}
?>文章地址:http://www.phprm.com/develop/fs4287.html
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