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

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…

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

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

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

PHP初学者容易遇到的错误:Warning: Cannot modify header information - headers already sent by ...: 通常是由不正确使用 header,session_start ,setcookie等方法导致的,下面以session使用错误为例,其余几种解决方案类似: 先给出解决方案再解释,如果急着用就不用看解释了. 解决方案一:保存php文件编码为utf-8无BOM码,具体操作可以用notepad++等编辑器完成,把 sesstion_…

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…

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…

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…

(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…

php有些系统会报错或提示 Cannot modify header information - headers already sent by

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…