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…
8月5日,第一个项目即将完成,测试时,发现登录功能会出现小问题:记住密码的时候会报错 Warning: Cannot modify header information - headers already sent by (output started at 经过再三在百度上查询,终于查到错误的关键原因:[setcookie之前不可以有html标签内容].导致出现这种错误的方式有很多种,但惟独这种解释最让我理解. (因为百度知道的内容不可以复制了,只能贴出地址,有详细解释)地址[http://z…
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…
php5.6ajax报错 Deprecated: Automatically populating $HTTP_RAW_POST_DATA is deprecated and will be removed in a future version. To avoid this warning set 'always_populate_raw_post_data' to '-1' in php.ini and use the php://input stream instead. in Unkno…
如果在执行php程序时看到这条警告:"Warning: Cannot modify header information - headers already sent by ...." Few notes based on the following user posts:有以下几种解决方法: 1. Blank lines (空白行):Make sure no blank line after <?php ... ?> of the calling php scrīpt.检…
Warning: Cannot modify header information - headers already sent by (output started at /home/test/domains/test.nl/public_html/wp-content/themes/mugen/engine/theme-scripts.php:1) in /home/test/domains/test.nl/public_html/wp-content/plugins/woocommerce…
<?php ob_start();setcookie("username","test",time()+3600);echo "the username is:".$HTTP_COOKIE_VARS["username"]."\n";echo "the username is:".$_COOKIE["username"]."\n";print…
转自:http://blog.csdn.net/buyingfei8888/article/details/8899797 运行有警告Warning: Cannot modify header information - headers already sent by 下面是别人建议 方法一:在PHP里Cookie的使用是有一些限制的.1.使用setcookie必须在<html>标签之前2.使用setcookie之前,不可以使用echo输入内容3.直到网页被加载完后,cookie才会出现4.s…
在用CI 开发微信公众号的时候出现下面这么个问题,网上看了一圈解决办法是:把报错的文件用editplus另存为utf-8. Severity: Warning Message: Cannot modify header information - headers already sent by (output started at Filename: libraries/Session.php Line Number: 688 因为每个页面都报上面的错,所以我估计是CI根目录下的index.ph…
E:\html\pim\php_weili_activities\application\controllers\user.php public function login() { if ($this->check_login()) { redirect(base_url('user/index')); //redirect(base_url('user/apps')); } //redirect($this->_manager_base_url); //处理scrf攻击的问题. /* $v…
错误:Warning: Cannot modify header information - headers already sent by (output started at 方法:“php.ini文件中修改output_buffering = on,重启Apache,刷新” 特别注意:(我就是看了这个才解决问题的) 如果使用utf-8编码,一定要去掉UTF-8中的BOM,这都是因为utf-8编码文件含有的bom原因,而php4,5都是不支持bom的.去掉 bom,可以用Notepad+…
