PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8
mb_regex_encoding - Set/Get character encoding for multibyte regex

mb_regex_encoding( [string|null$encoding = null] ): string|bool

Set/Get character encoding for a multibyte regex.



The encoding parameter is the character encoding. If it is omitted or null, the internal character encoding value will be used.

Return Values

If encoding is set, then Returns true on success or false on failure. In this case, the internal character encoding is NOT changed. If encoding is omitted, then the current character encoding name for a multibyte regex is returned.


Version Description
8.0.0 encoding is nullable now.

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