mb_internal_encoding
Function • Params and return types changed in PHP 8.0
Set/Get internal character encoding.
mb_internal_encoding Function synopsis
mb_internal_encoding(?string $encoding = null): string|boolParameters
$encoding
OptionalType?stringDefault valuenull
$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 value
Typestring|bool
If $encoding is set, then
Returns true on success, 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.
Changes to the mb_internal_encoding Function
PHP 8.0
- Return type added:
string|bool - Parameter type added for parameter #1 (
$encoding):?string - Parameter default value added for position #1 (
$encoding):null
- mb_internal_encoding($encoding)
+ mb_internal_encoding(?string $encoding = null): string|boolmb_internal_encoding Function Availability
mb_internal_encoding Function Availability| PHP Version | Availability |
|---|---|
| PHP 8.6Upcoming Release | Yes |
| PHP 8.5Supported (Latest) | Yes |
| PHP 8.4Supported | Yes |
| PHP 8.3Security-Fixes Only | Yes |
| PHP 8.2Security-Fixes Only | Yes |
| PHP 8.1Unsupported | Yes |
| PHP 8.0Unsupported | Yes |
| PHP 7.4Unsupported | Yes |
| PHP 7.3Unsupported | Yes |
| PHP 7.2Unsupported | Yes |
| PHP 7.1Unsupported | Yes |
| PHP 7.0Unsupported | Yes |
| PHP 5.6Unsupported | Yes |
| PHP 5.5Unsupported | Yes |
| PHP 5.4Unsupported | Yes |
| PHP 5.3Unsupported | Yes |