Analysis of the causes and solutions of Chinese garbled characters in PHP_PHP Tutorial

1. The first is the encoding of the PHP web page

1. The encoding of the php file itself and the encoding of the web page should match

a. If you want to use gb2312 encoding, then php must output the header: header( "Content-Type: text/html; charset=gb2312"), add to the static page, and the encoding format of all files is ANSI, you can open it with Notepad, save as and select the encoding as ANSI, and overwrite the source file.

b. If you want to use utf-8 encoding, then php should output the header: header("Content-Type: text/html; charset=utf-8"), and add , the encoding format of all files is utf-8. Saving as utf-8 may be a bit troublesome. Generally, utf-8 files will have BOM at the beginning. If you use session, there will be problems. You can use editplus to save. In editplus, go to Tools->Parameter Selection->File-> UTF-8 signature, select Always delete, then save to remove the BOM information.

2.php itself is not Unicode, all functions such as substr must be changed to mb_substr (mbstring extension needs to be installed); or use iconv to transcode.

2. Data interaction between PHP and Mysql

The encoding of PHP and the database should be consistent

1. Modify the mysql configuration file my.ini or my.cnf. It is best to use utf8 encoding for mysql

<ol class="dp-xml">
<li class="alt"><span><span>[mysql]  </span></span></li>
<li>
<span class="attribute">default-character-set</span><span>=</span><span class="attribute-value">utf8</span><span> </span>
</li>
<li class="alt"><span>[mysqld]  </span></li>
<li>
<span class="attribute">default-character-set</span><span>=</span><span class="attribute-value">utf8</span><span> </span>
</li>
<li class="alt">
<span class="attribute">default-storage-engine</span><span>=</span><span class="attribute-value">MyISAM</span><span> </span>
</li>
<li><span></span></li>
</ol>