How to convert character encoding to utf8 in php

In PHP, you can first use the mb_detect_encoding() function to obtain the original encoding of the character; then use "mb_convert_encoding("specified character", "UTF-8", "original encoding of the character")" To convert the character encoding to utf8.

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

php converts character encoding to utf8

function strToUtf8($str){
    $encode = mb_detect_encoding($str, array("ASCII",'UTF-8',"GB2312","GBK",'BIG5'));
    if($encode == 'UTF-8'){
        return $str;
    }else{
        return mb_convert_encoding($str, 'UTF-8', $encode);
    }
}

Description:

mb_detect_encoding() function is used to detect the encoding of characters.

mb_detect_encoding ( string $str , mixed $encoding_list = mb_detect_order())

• str: ​​The string to be checked.

• encoding_list: is a character encoding list. The encoding order can be specified by an array or a comma-separated list of strings.

[Recommended study: "PHP Video Tutorial"]

mb_convert_encoding() function converts the encoding of characters

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

• string str String that needs encoding conversion;

• string to_encoding specifies the conversion to a certain encoding, such as: gb2312, gbk, utf-8, etc.;

Example:

1. Convert GBK encoded string to UTF-8 encoded string;

<?php  
header("content-Type: text/html; charset=Utf-8");  
echo mb_convert_encoding("你是我的好朋友", "UTF-8", "GBK");  
?>

2. Convert UTF-8 encoded string Into GB2312 encoded string

// 注意将此文件存盘成 utf-8 编码格式文件再测试
<?php  
header("content-Type: text/html; charset=gb2312");  
echo mb_convert_encoding("你是我的好朋友", "gb312", "utf-8");

For more programming-related knowledge, please visit: Programming Video! !

The above is the detailed content of How to convert character encoding to utf8 in php. For more information, please follow other related articles on the PHP Chinese website!