(PHP 4 >= 4.0.6, PHP 5, PHP 7)
mb_strlen — Get string length
mb_strlen ( string $string [, string|null $encoding = null ] ) : int
Gets the length of a string.
string
The string being checked for length.
encoding
The encoding parameter is the character encoding. If it is omitted or null, the internal character encoding value will be used.
Returns the number of characters in string string having character encoding encoding. A multi-byte character is counted as 1.
If the encoding is unknown, an error of level E_WARNING is generated.
| Version | Description |
|---|---|
| 8.0.0 | encoding is nullable now. |
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https://www.php.net/manual/en/function.mb-strlen.php