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PHP mb_detect_order

PHP original manual for mb_detect_order [ show | php.net ]

mb_detect_order

(PHP 4 >= 4.0.6, PHP 5, PHP 7)

mb_detect_order — Set/Get character encoding detection order

Description

mixed mb_detect_order ([ mixed $encoding_list = mb_detect_order() ] )

Sets the automatic character encoding detection order to encoding_list.

Parameters

encoding_list

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

If encoding_list is omitted, 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.

Return Values

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

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

Examples

Example #1 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 #2 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

See Also