1, download Libiconv function library http://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.9.2.tar.gz;
2, decompression TAR-ZXVF libiconv-1.9.2.tar.gz;
3, Installation Libiconv
Copy CodeThe code is as follows:
#configure--prefix=/usr/local/iconv
#make
#make Install
4. Recompile php add compiler parameter--with-iconv=/usr/local/iconv
Windows under
Recently in a thief program, need to use the ICONV function to fetch the UTF-8 encoded page into gb2312, found that only with the ICONV function to fetch the data of a transcoding data will be less for no reason. Let me depressed for a while, go online a check information to know this is a iconv function of a bug. Iconv error when converting character "-" to gb2312
The workaround is simply to add "//ignore" to the second parameter of the ICONV function after the code that needs to be converted.
The following is the referenced content:
Iconv ("UTF-8", "Gb2312//ignore", $data)
Ignore means ignoring errors at the time of conversion, and if there is no ignore argument, all strings after that character cannot be saved.
Iconv is not the default function for PHP, it is also the default installed module. Need to be installed to use.
If it is windows2000+php, you can modify the php.ini file, will extension=php_iconv.dll before the ";" Remove, while you copy your original PHP installation file under the Iconv.dll to your winnt/system32 (if your DLL is pointing to this directory)
In the Linux environment, the static installation of the way, in the configure when adding a--with-iconv on it, phpinfo see iconv items. (linux7.3+apache4.06+php4.3.2),
Download: ftp://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.8.tar.gz
Installation:
Copy CodeThe code is as follows:
#cp LIBICONV-1.8.TAR.GZ/USR/LOCAL/SRC
#tar ZXVF lib*
#./configure--prefix=/usr/local/libiconv
#make
#make Install
Compiling PHP
#./configure--prefix=/usr/local/php4.3.2--with-iconv=/usr/local/libiconv/
Simple examples of use:
Echo iconv ("gb2312", "iso-8859-1", "we");
Introduction to Mb_convert_encoding and ICONV functions in PHP
Mb_convert_encoding This function is used to convert the encoding. It turns out that the concept of program coding is not understood, but it seems to be a bit enlightened now.
However, there is generally no coding problem in English, only the Chinese data will have this problem. For example, when you write a program with Zend Studio or editplus, using GBK encoding, if the data needs to enter the database, and the database encoding is UTF8, then the data will be encoded conversion, or into the database will become garbled.
Mb_convert_encoding's usage is in the official view:
http://cn.php.net/manual/zh/function.mb-convert-encoding.php
Make a GBK to UTF-8
Copy CodeThe code is as follows:
< PHP
Header ("content-type:text/html; Charset=utf-8 ");
Echo mb_convert_encoding ("You Are my Friend", "UTF-8", "GBK");
?>
One more GB2312 to Big5.
Copy CodeThe code is as follows:
< PHP
Header ("content-type:text/html; Charset=big5 ");
Echo mb_convert_encoding ("You Are my Friend", "Big5", "GB2312");
?>
However, to use the above function requires installation but first enable the mbstring extension library.
Another function in PHP, Iconv, is also used to convert string encodings, similar to functions on the upper function.
Here are a few more examples:
Iconv-convert string to requested character encoding
(PHP 4 >= 4.0.5, PHP 5)
Mb_convert_encoding-convert character encoding
(PHP 4 >= 4.0.6, PHP 5)
Usage:
String mb_convert_encoding (String str, string to_encoding [, mixed from_encoding])
Need to enable Mbstring expansion Library, in php.ini; Extension=php_mbstring.dll in front of; Remove
Mb_convert_encoding can specify a variety of input encoding, it will automatically identify according to the content, but the execution efficiency is much worse than the iconv;
String Iconv (String in_charset, String out_charset, String str)
Note: The second parameter, in addition to specifying the encoding to be converted to, can also add two suffixes://translit and//ignore, where//translit automatically converts characters that cannot be converted directly into one or more approximate characters,//ignore Characters that cannot be converted are ignored, and the default effect is truncated from the first illegal character.
Returns the converted string or FALSE on failure.
Use:
The iconv is found to have an error converting the character "-" to gb2312, and if there is no ignore parameter, all strings after that character cannot be saved. In any case, this "-" can not be converted successfully, unable to output. Another mb_convert_encoding does not have this bug.
In general, with Iconv, only use the Mb_convert_encoding function if you encounter an inability to determine what encoding the original encoding is, or if the Iconv conversion fails to display properly.
From_encoding is specified by character code name before conversion. It can be array or STRING-COMMA separated enumerated list. If It is not specified, the internal encoding would be used.
/* Auto detect encoding from JIS, Eucjp-win, Sjis-win, then convert str to Ucs-2le */
$str = mb_convert_encoding ($str, "Ucs-2le", "JIS, Eucjp-win, Sjis-win");
/* "Auto" is expanded to "ascii,jis,utf-8,euc-jp,sjis" */
$str = mb_convert_encoding ($str, "EUC-JP", "Auto");
Example:
Copy CodeThe code is as follows:
$content = Iconv ("GBK", "UTF-8", $content);
$content = mb_convert_encoding ($content, "UTF-8", "GBK");
http://www.bkjia.com/PHPjc/324396.html www.bkjia.com true http://www.bkjia.com/PHPjc/324396.html techarticle 1, download libiconv function library http://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.9.2.tar.gz; 2, decompression TAR-ZXVF libiconv-1.9.2.tar.gz; 3. Install libiconv Copy code code as follows: # ...
