更新:更改了一些sql查询,现在它转移到控制面板。尽管它显示了这些错误。PHP登录系统问题 - mysql_num_rows无效
警告:在session_start()[function.session启动]:不能发送会话cookie - 头已经发出(输出开始/home/lewism/public_html/admin/rent/login_success.php:10)在/home/lewism/public_html/admin/rent/login_success.php 74行
警告:在session_start()[function.session启动]:无法发送会话 缓存限制器 - 头已经发送(输出开始 /home/lewism/public_html/admin/rent/login_success.php:10) /home/lewism/public_html/admin/rent/login_success.php on line 74
警告:无法修改标头信息 - (输出开始于 /home/lewism/public_html/admin/rent/login_success.php:10)已在 /home/lewism/public_html/admin/rent/login_success中发送的标头。上的PHP线76
〜嘿,伙计们,
只是利用phpeasysteps.com登录脚本,它提供了以下错误,当我尝试登录,任何建议
警告:mysql_num_rows() :提供的参数不是/ home/lewism/public_html/ad中的有效MySQL结果资源第27行错误的用户名或密码
下面分/租/ checklogin.php对于checklogin.php
<?php
$host="localhost"; // Host name
$username="lewism_lewis"; // Mysql username
$password="teamgreen"; // Mysql password
$db_name="lewism_car"; // Database name
$tbl_name="Customers"; // Table name
// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name")or die("cannot select DB");
// username and password sent from form
$myusername=$_POST['myusername'];
$mypassword=$_POST['mypassword'];
// To protect MySQL injection
$myusername = stripslashes($myusername);
$mypassword = stripslashes($mypassword);
$myusername = mysql_real_escape_string($myusername);
$mypassword = mysql_real_escape_string($mypassword);
$sql="SELECT * FROM $tbl_name WHERE username='$myusername' and password='$mypassword'";
$result=mysql_query($sql);
// Mysql_num_row is counting table row
$count=mysql_num_rows($result);
// If result matched $myusername and $mypassword, table row must be 1 row
if($count==1){
// Register $myusername, $mypassword and redirect to file "login_success.php"
session_register("myusername");
session_register("mypassword");
header("location:login_success.php");
}
else {
echo "Wrong Username or Password";
}
?>
谢谢你们的代码,
AIS
强制性 “逃避你输入”。使用'mysql_real_escape_string'。 – Halcyon 2012-03-16 23:14:44