mb_substitute_character

(PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8)

mb_substitute_character — Set/Get substitution character

Descrizione

mb_substitute_character(string|int|null $substitute_character = null): string|int|bool

Specifies a substitution character when input character encoding is invalid or character code does not exist in output character encoding. Invalid characters may be substituted "none" (no output), string or int value (Unicode character code value).

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

Elenco dei parametri

substitute_character

Specify the Unicode value as an int, or as one of the following strings:

"none": no output
"long": Output character code value (Example: U+3000, JIS+7E7E)
"entity": Output character entity (Example: Ȁ)

Valori restituiti

If substitute_character is set, it returns true for success, otherwise returns false. If substitute_character is not set, it returns the current setting.

Log delle modifiche

Versione	Descrizione
8.0.0	Passing an empty string to `substitute_character` is no longer supported; `"none"` should be passed instead.
8.0.0	`encoding` is nullable now.

Esempi

Example #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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