Differences between iconv and mb_convert_encoding encoded strings in php

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])
Enable the mbstring extension Library first. in php. ini, remove the extension before php_mbstring.dll.

String iconv (string in_charset, string out_charset, string str)
Note:
The second parameter, in addition to specifying the encoding to be converted, can also add two suffixes: // Transcoder and // IGNORE,
Where:
// Transcoder automatically converts a character that cannot be directly converted into one or more similar characters,
// IGNORE ignores the characters that cannot be converted. By default, it is truncated from the first invalid character.
Returns the converted string or FALSE on failure.

Usage:
1. It is found that iconv will encounter an error when converting the character "-" To gb2312. If the ignore parameter is not available, all strings after this character cannot be saved. Either way, this

"-" Cannot be converted successfully, and cannot be output. In addition, mb_convert_encoding does not have this bug.
2. mb_convert_encoding can specify multiple input encodings, which are automatically identified based on the content, but the execution efficiency is much lower than iconv; for example: $ str =

Mb_convert_encoding ($ str, "euc-jp", "ASCII, JIS, EUC-JP, SJIS, UTF-8"); "ASCII, JIS, EUC-JP, SJIS, the order of UTF-8 has different effects

Difference
3. Generally, iconv is used. The mb_convert_encoding function is used only when the encoding of the original encoding cannot be determined or the iconv cannot be displayed normally after conversion.

.
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 will be used.

$ Str = mb_convert_encoding ($ str, "UCS-2LE", "JIS, eucjp-win, sjis-win ");

$ Str = mb_convert_encoding ($ str, "EUC-JP", "auto ");

Example:
$ Content = iconv ("GBK", "UTF-8", $ content );
$ Content = mb_convert_encoding ($ content, "UTF-8", "GBK ");