(PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8)
mb_internal_encoding — Set/Get internal character encoding
Set/Get the internal character encoding
encodingencoding 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.
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.
As of PHP 8.0.0, a ValueError is thrown if the value of encoding is an invalid encoding. Prior to PHP 8.0.0, a E_WARNING was emitted instead.
| Version | Description |
|---|---|
| 8.0.0 | encoding is nullable now. |
| 8.0.0 | Now throws a ValueError if encoding is an invalid encoding. Previously a E_WARNING was emitted instead. |
Example #1 mb_internal_encoding() example
<?php
mb_internal_encoding("UTF-8");
echo mb_internal_encoding();
?>