How to set character encoding in php

#How to set character encoding in php?

　a. 如果欲使用gb2312编码，那么php要输出头：header(“Content-Type: text/html; charset=gb2312")，静态页面添加<meta http-equiv="Content-Type" content="text/html; charset=gb2312">，所有文件的编码格式为ANSI，可用记事本打开，另存为选择编码为ANSI，覆盖源文件。
　　b. 如果欲使用utf-8编码，那么php要输出头 ：header(“Content-Type: text/html; charset=utf-8")，静态页面添加<meta http-equiv="Content-Type" content="text/html; charset=utf-8">，所有文件的编码格式为utf-8。

Recently, I need to use the iconv function to convert the captured utf-8 encoded page into gb2312. I found that only using the iconv function to transcode the captured data will cause the data to be lost. Less gratuitous. I was depressed for a while, and after checking the information on the Internet, I found out that this was a bug in the iconv function. iconv will make an error when converting the character "-" to gb2312. The solution is very simple, that is, add "//IGNORE" after the encoding that needs to be converted, that is, after the second parameter of the iconv function, as follows:

iconv("UTF-8","GB2312//IGNORE",$data)

ignore means to ignore errors during conversion. If there is no ignore parameter, all strings following this character cannot be saved.

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