This article introduces how to resolve Warning: cannot modify header information-headers already sent by in php when headers cannot be redirected ......
The following message is often displayed: cannot modify header information-headers already sent
PHP page Encoding declaration method in detail (header or meta)PHP page encoding declaration with header or meta implementation of PHP page encoding DifferencePHP header to define a PHP page for UTF encoding or GBK encodingPHP page is UTF encoded
The underlying working principle of PHP. First, let's take a look at the following process: we have never manually started PHP-related processes, which run with Apache startup. PHP is connected to Apache through the mod_php5.so module (for details,
One thing we must admit is that most web applications are inseparable from the use of sessions. This article will analyze how to establish a secure session management mechanism based on php and http protocol. First, we will briefly understand some
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PHP header to define a PHP page for UTF encoding or GBK encoding
PHP page is UTF encoded
header ("content-type:text/html; Charset=utf-8 ");
PHP page is GBK encoded
header
Blog. csdn. net21aspnetarticledetails6973405 let's take a look at the following process: We have never started PHP-related processes manually, and it runs with Apache startup; PHP is connected to Apache through the mod_php5.so module (specifically,
There are two encoding format, one is the PHP file itself encoding format, such as EditPlus, such as editor when saving the file allows you to specify the file encoding format, the other is the PHP output text encoding format, this information only
The Apach request processing process in the article directory was recently set up a server. Suddenly, how does lamp work or how does it work? I usually only write programs, but I have never thought about the working principle between them: the
PHP Tutorial Configuration Chinese Narration
Let's see what you see, php.ini.
[PHP]
;;;;;;;;;;;; WARNING;;;;;;;;;;;;; This is the default settings file for new PHP installations.; By default, PHP installs itself with a configuration suitable for;
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