How to convert encoding in php string

php string conversion encoding method: 1. The general iconv function performs string conversion encoding; 2. Use the "mb_convert_encoding" function to handle multi-byte encoding conversion.

The operating environment of this article: Windows 7 system, PHP version 7.1, DELL G3 computer.

php String encoding conversion

php provides two string conversion encoding functions, one is a general iconv function, and the other is a multi-byte encoding conversion function mb_convert_encoding, you need to enable the extension php_mbstring

string mb_convert_encoding ( string str, string to_encoding [, mixed from_encoding] )

Use:

It is found that iconv will make an error when converting the character "-" to gb2312. If there is no ignore parameter, all strings following this character cannot be save. No matter what, this "-" cannot be converted successfully and cannot be output. In addition, mb_convert_encoding does not have this bug.

mb_convert_encoding can specify multiple input encodings, which will be automatically recognized based on the content, but the execution efficiency is much worse than iconv;

如：s t r = m b c o n v e r t e n c o d i n g ( str = mb_convert_encoding(str=mb convert encoding(str,“euc-jp”,“ASCII,JIS,EUC-JP,SJIS,UTF- 8”);“ASCII,JIS,EUC-JP,SJIS,UTF-8”的顺序不同效果也有 差异

Generally use iconv, only Use the mb_convert_encoding function when you are unable to determine what the original encoding is, or the iconv conversion cannot be displayed normally.

Example:

$content = iconv(“GBK”, “UTF-8”, c o n t e n t ) ; ‘ ‘ content); ` `content);‘‘content = mb_convert_encoding($content, “UTF-8”, “GBK”);`

[Recommended learning: PHP video tutorial】

The above is the detailed content of How to convert encoding in php string. For more information, please follow other related articles on the PHP Chinese website!