解决Cannot modify header information - headers already sent by

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解决Cannot modify header information - headers already sent by

output_buffering = On ,在php.ini中设置.…

阿里云服务器出现Warning: Cannot modify header information - headers already sent by (output started at 问题的解决方法

阿里云服务器出现Warning: Cannot modify header information - headers already sent by (output started at 问题的解决方法: 首先查看header("Content-type:text/html;charset=utf-8");前面是否有输出或空格,这个前面是不能有空格和输出的, 如果没有空格和输出仍出现这种情况,可以去改php.ini配置文件. 主机管理平台>高级环境设置>PHP.ini设置…

PHP错误Warning: Cannot modify header information - headers already sent by解决方法

这篇文章主要介绍了PHP错误Warning: Cannot modify header information - headers already sent by解决方法,需要的朋友可以参考下今天在测试以下代码时遇到该错误: 复制代码代码如下: session_start();$_SESSION['username']=$username;echo "<script language='javascript'>location.href='../admin.php';</sc…

PHP提示Cannot modify header information - headers already sent by解决方法

PHP提示Cannot modify header information - headers already sent by解决方法因为 header();发送头之前不能有任何输出,空格也不行, 需要将header()之前的空格去掉,或者其他输出的东西去掉, 如果他上面include其他文件了,你还要检查其他文件里是否有输出. 可以使用 ob_clean(); 清空(擦掉)输出缓冲区.…

Warning: Cannot modify header information - headers already sent by (output started at

一般来说在header函数前不能输出html内容,类似的还有setcookie() 和 session 函数,这些函数需要在输出流中增加消息头部信息.如果在header()执行之前有echo等语句,当后面遇到header()时,就会报出 “Warning: Cannot modify header information - headers already sent by ....”错误.就是说在这些函数的前面不能有任何文字.空行.回车等,而且最好在header()函数后加上exit()函数.例…

PHP：Cannot modify header information - headers already sent by错误的解决方案

<?php ob_start();setcookie("username","test",time()+3600);echo "the username is:".$HTTP_COOKIE_VARS["username"]."\n";echo "the username is:".$_COOKIE["username"]."\n";print…

Warning: Cannot modify header information - headers already sent by ... functions_general.php on line 45

摘自:有用到 http://blog.csdn.net/besily/article/details/5396268 PHP错误:Warning: Cannot modify header information - headers already sent by ... 2010-03-19 14:08 9779人阅读评论(3) 收藏举报如果在执行php程序时看到这条警告:"Warning: Cannot modify header information - headers alrea…

php5.6,Ajax报错，Warning: Cannot modify header information - headers already sent in Unknown on line 0

php5.6ajax报错 Deprecated: Automatically populating $HTTP_RAW_POST_DATA is deprecated and will be removed in a future version. To avoid this warning set 'always_populate_raw_post_data' to '-1' in php.ini and use the php://input stream instead. in Unkno…

(转)PHP5使用cookie时报错 cannot modify header information - headers already sent by (......)

转自:http://blog.csdn.net/buyingfei8888/article/details/8899797 运行有警告Warning: Cannot modify header information - headers already sent by 下面是别人建议方法一:在PHP里Cookie的使用是有一些限制的.1.使用setcookie必须在<html>标签之前2.使用setcookie之前,不可以使用echo输入内容3.直到网页被加载完后,cookie才会出现4.s…

转载： PHP错误：Warning: Cannot modify header information - headers already sent by ...

如果在执行php程序时看到这条警告:"Warning: Cannot modify header information - headers already sent by ...." Few notes based on the following user posts:有以下几种解决方法: 1. Blank lines (空白行):Make sure no blank line after <?php ... ?> of the calling php scrīpt.检…