mb-detect-order

mb_detect_order

Set/Get character encoding detection order

ENTITY

array

bool

mb_detect_order

array

string

null

encoding

ENTITY

Sets the automatic character encoding detection order to encoding.

ENTITY

encoding
encoding is an array or comma separated list of character encoding. See supported encodings.

If encoding is omitted or ENTITY, it returns the current character encoding detection order as array.

This setting affects mb_detect_encoding and mb_send_mail.

mbstring currently implements the following encoding detection filters. If there is an invalid byte sequence for the following encodings, encoding detection will fail.

UTF-8, UTF-7, ASCII, EUC-JP,SJIS, eucJP-win, SJIS-win, JIS, ISO-2022-JP

For ISO-8859-*, mbstring always detects as ISO-8859-*.

For UTF-16, UTF-32, UCS2 and UCS4, encoding detection will fail always.

ENTITY

When setting the encoding detection order, ENTITY is returned on success or ENTITY on failure.

When getting the encoding detection order, an ordered array of the encodings is returned.

ENTITY

ENTITY ENTITY

ENTITY

mb_detect_order examples

<?php
/* Set detection order by enumerated list */
mb_detect_order("eucjp-win,sjis-win,UTF-8");

/* Set detection order by array */
$ary[] = "ASCII";
$ary[] = "JIS";
$ary[] = "EUC-JP";
mb_detect_order($ary);

/* Display current detection order */
echo implode(", ", mb_detect_order());
?>

    

Example showing useless detect orders

; Always detect as ISO-8859-1
detect_order = ISO-8859-1, UTF-8

; Always detect as UTF-8, since ASCII/UTF-7 values are 
; valid for UTF-8
detect_order = UTF-8, ASCII, UTF-7

ENTITY

mb_internal_encoding, mb_http_input, mb_http_output, mb_send_mail


版本号 #2
由 壳壳虫 创建于 2026-10-31 17:52:38 UTC
由 壳壳虫 更新于 2026-10-31 17:52:40 UTC