mb_strlen
Function • Params and return types changed in PHP 8.0
Get string length.
mb_strlen Function synopsis
mb_strlen(string $string, ?string $encoding = null): intParameters
$string
Typestring
The string being checked for length.
$encoding
OptionalType?stringDefault valuenull
Return value
Typeint
Returns the number of characters in
string $string having character encoding
$encoding. A multi-byte character is
counted as 1.
Changes to the mb_strlen Function
PHP 8.0
- Return type added:
int - Parameter name of parameter #1 changed:
$strto$string - Parameter type added for parameter #1 (
$string):string - Parameter type added for parameter #2 (
$encoding):?string - Parameter default value added for position #2 (
$encoding):null
- mb_strlen($str, $encoding)
+ mb_strlen(string $string, ?string $encoding = null): intmb_strlen Function Availability
mb_strlen 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 |