PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8
mb_internal_encoding - Set/Get internal character encoding
Code Examples

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

Set/Get the internal character encoding



encoding is the character encoding name used for the HTTP input character encoding conversion, HTTP output character encoding conversion, and the default character encoding for string functions defined by the mbstring module. You should notice that the internal encoding is totally different from the one for multibyte regex.

Return Values

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


Version Description
8.0.0 encoding is nullable now.

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