PHP: mb_substitute_character - Manual

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Last updated: Sat, 27 Jan 2007

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# mb_substitute_character

(PHP 4 >= 4.0.6, PHP 5)

mb_substitute_character -- Set/Get substitution character

## Description

mixed mb_substitute_character ( [mixed substrchar] )

mb_substitute_character() specifies substitution character when input character encoding is invalid or character code is not exist in output character encoding. Invalid characters may be substituted `NULL`(no output), string or integer value (Unicode character code value).

This setting affects mb_convert_encoding(), mb_convert_variables(), mb_output_handler(), and mb_send_mail().

`substchar` : Specify Unicode value as integer or specify as string as follows

- "none" : no output

- "long" : Output character code value (Example: U+3000,JIS+7E7E)

Return Value: If `substchar` is set, it returns `TRUE` for success, otherwise returns `FALSE`. If `substchar` is not set, it returns Unicode value or "`none`"/"`long`".

Пример 1. mb_substitute_character() example

`<?php
/* Set with Unicode U+3013 (GETA MARK) */
mb_substitute_character(0x3013);
/* Set hex format */
mb_substitute_character("long");
/* Display current setting */
echo mb_substitute_character();
?>`

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Last updated: Sat, 27 Jan 2007
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