PHP问题“无法发送会话Cookie” [英] PHP issue "Cannot send session cookie"

问题描述

请附上我的代码：

<?PHP 
session_start();
if (isset($_POST["usernameform"])){ 

$username = $_POST['usernameform'];
$password1 = $_POST['passwordform'];


$user_name = "XXXX";
$password = "XXXXX";
$database = "XXX";
$server = "XXXX";

$db_handle = mysql_connect($server, $user_name, $password);
$db_found = mysql_select_db($database, $db_handle);


$SQL = "SELECT * FROM login WHERE Username = '$username' AND Password = '$password1' "; //grab all the records from table
$result = mysql_query($SQL)
    or die("Error:" . mysql_error());

if (mysql_num_rows($result) > 0){ //if username and password match return number of rows is always 1

$_SESSION['login'] = $username; //by placing this in session it will remember this variable on the page it directs too

while ( $row = mysql_fetch_assoc($result) ){ //lays out array in $result
$_SESSION['ID'] = $row['ID']; //selects from list of array ID
$_SESSION['firstname'] = $row['First_Name'];
echo'<script> window.location="page1.php"; </script> ';

}
} else {
$_SESSION['login'] = '';
print('
<script type="text/javascript"> //place html script for alert. Use single comma for print command here.
    alert("Sorry, your username or password could not be recognized")
</script>
');
session_destroy();
}
}
?>

虽然代码在我的localhost（wampserver）上工作得很好，但它不能在我的主机和我的主机上工作获取错误：

Although the code works perfectly on my localhost (wampserver), it does not work on my host and I get the errors:

警告：session_start（）[function.session-start]：无法发送会话
cookie - 在第2行的/.../vhindex.php中发送（输出开始于
/.../vhindex.php:1）

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /.../vhindex.php:1) in /.../vhindex.php on line 2

警告： session_start（）[function.session-start]：无法发送会话
缓存限制器 - 已经发送的头文件（输出开始于
/.../vhindex.php:1）in /.../vhindex .php on line 2

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /.../vhindex.php:1) in /.../vhindex.php on line 2

session_start（）; 在PHP块的顶部，在任何HTML输出之前，我完全被困住。

The session_start(); code has been placed at the top of the PHP block and before any HTML output is made and I am completely stumped.

任何想法？

推荐答案

• 下载记事本++ 并打开该文件，删除<？PHP


• 确保在<？PHP 之前没有像或tab或linebreak之类的空白字符。
  
  
  
  • 在记事本++中，点击编码，然后 UTF-8没有BOM 将文件转换为UTF-8而不使用BOM，然后保存。
  
  
  • Download Notepad++ and open the file there, delete all fancy characters before the <?PHP
  • Make sure there is no whitespace character like " " or tab or linebreak before the <?PHP.
    • In Notepad++ click Encoding and then UTF-8 without BOM to convert the file to UTF-8 without BOM, then save it.

    这篇关于PHP问题“无法发送会话Cookie”的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！