How to convert string to utf8 format in php

Method: 1. Use iconv function, syntax "iconv(original character type, 'UTF-8', string)"; 2. Use mb_convert_encoding function, syntax "mb_convert_encoding(string, 'UTF-8" ', original character type)".

The operating environment of this article: windows7 system, PHP7.1 version, DELL G3 computer

1. Use the iconv() function
iconvfunction can convert a known character set file into another known character set file. For example: Convert fromGB2312toUTF-8. iconv will make an error when converting the characters "—" to "gb2312". The solution is to add "//IGNORE" after the encoding that needs to be converted, which is the second iconv function. parameters. As follows:

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

ignoremeans to ignore errors during conversion. Without theignoreparameter, all strings following this character cannot be saved.

'; 　　echo iconv('GB2312', 'UTF-8', $str); //将字符串的编码从GB2312转到UTF-8 ?>

2. Use "mb_convert_encoding" to convert the string into the UTF8 character set

When usingmb_convert_encoding, you must first know the character encoding. If If the encoding is wrong, the characters will be garbled. Usemb_detect_encodingto automatically identify the string encoding and convert it to the international standard encoding utf-8 encoding.

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