Introduction to the conversion function of PHP mb_convert

Introduction to the conversion function of PHP mb_convert_encoding text encoding

Text encoding conversion mb_convert_encoding()
mb_convert_encoding( $str, $encoding1,$encoding2 )

$str, the string to be converted
$encoding1, target encoding, such as utf-8, gbk, can be used for upper and lower case
$encoding2, original encoding, such as utf-8, gbk, can be used for upper and lower case

Example 1

Copy the codeThe code is as follows:

 
<?php 
$str='I:https://';
echo mb_convert_encoding($str, "UTF-8"); //Convert encoding to utf-8
?> 

Copy the codeThe code is as follows:

 
<?php 
$str='I:https://';
echo mb_convert_encoding($str, "UTF-8", "GBK"); //It is known that the original encoding is GBK, converted to utf-8
?> 

Copy the codeThe code is as follows:

 
<?php 
$str='I:https://';
echo mb_convert_encoding($str, "UTF-8", "auto"); //Unknown original encoding, after auto-detecting, the conversion encoding is utf-8
?> 

Instructions for the encoding conversion functions mb_convert_encoding and iconv under PHP