iconv程序以一個編碼讀取文本，並輸出文本
另一個編碼。 如果沒有給出輸入文件，或者如果它被賦予
破折號（ - ），iconv從標準輸入讀取。

如果沒有提供from-encoding，則默認值來自當前的
語言環境的字符編碼。

ICONV(1) Linux User Manual ICONV(1)

NAME
iconv - convert text from one character encoding to another

SYNOPSIS
iconv [options] [-f from-encoding] [-t to-encoding] [inputfile]...

DESCRIPTION
The iconv program reads in text in one encoding and outputs the text in
another encoding. If no input files are given, or if it is given as a
dash (-), iconv reads from standard input. If no output file is given,
iconv writes to standard output.

If no from-encoding is given, the default is derived from the current
locale's character encoding. If no to-encoding is given, the default
is derived from the current locale's character encoding.



EXAMPLE
將文件從ISO big5字符編碼轉換為UTF-8：
$ iconv -f big5-t UTF-8 < input.txt > output.txt

下一個範例將UTF-8轉換為ASCII：

$ echo abc &#223; α € &#224;&#7683;&#231; | iconv -f UTF-8 -t ASCII//TRANSLIT
abc ss ? EUR abc

整個目錄轉換
新建目錄twemail-utf8
進入來源目錄(big5)
find . -type f -exec bash -c 'iconv -f big5 -t utf-8 "{}" > ../twemail-utf8/"{}"' \;


透過PHP轉換
string iconv ( string $in_charset , string $out_charset , string $str )


<?php
$text = "This is the Euro symbol '€'.";

echo 'Original : ', $text, PHP_EOL;
echo 'TRANSLIT : ', iconv("UTF-8", "ISO-8859-1//TRANSLIT", $text), PHP_EOL;
echo 'IGNORE : ', iconv("UTF-8", "ISO-8859-1//IGNORE", $text), PHP_EOL;
echo 'Plain : ', iconv("UTF-8", "ISO-8859-1", $text), PHP_EOL;

?>

Release