How to convert data encoding from utf-8 to gbk in php

In PHP, you can use the iconv() function to convert the data encoding from utf-8 to gbk. This function can convert the string according to the required character encoding. The syntax "iconv("UTF-8 ","gbk//TRANSLIT",$str)".

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

In php, you can use iconv () function converts the encoding of data from utf-8 to gbk.

<?php
header("Content-type:text/html;charset=UTF-8");
$str= &#39;你好,这里是utf8转gbk!&#39;;
echo $str;
echo &#39;<br />&#39;;
echo iconv("UTF-8","gbk//TRANSLIT",$str); //将字符串的编码从UTF-8转到GB2312
?>

iconv() function can also convert encoding gbk to utf8

<?php
header("Content-type:text/html;charset=GB2312");
$str= &#39;你好,这里是gbk转utf8!&#39;;
echo $str;
echo &#39;<br />&#39;;
echo iconv("GB2312","UTF-8",$str); //将字符串的编码从UTF-8转到GB2312
?>

Description: iconv() function

iconv() function can convert a string according to the required character encoding.

Syntax:

iconv(string $in_charset, string $out_charset, string $str): string

Convert the string str from in_charset to out_charset.

Parameter description:

• $in_charset: Input character set.

• $out_charset: Output character set.

  If you add the string //TRANSLIT after out_charset, the transliteration function will be enabled. This means that when a character cannot be represented by the target character set, it can be approximated by one or more similar characters. If you add the string //IGNORE, characters that cannot be expressed in the target character set will be silently discarded. Otherwise, an E_NOTICE is raised and false is returned.

  WARNING

  //TRANSLIT operation details are highly dependent on the system's iconv() implementation (see ICONV_IMPL). It is reported that the implementation on some systems will directly ignore //TRANSLIT, so the conversion may fail and out_charset will be unqualified.

• #$str: The string to be converted.

Return value: Returns the converted string, or returns false on failure.

Starting from version 5.4.0, false will be returned when the character is illegal, unless //IGNORE is specified in the output character. In previous versions, it would return a partial string.

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