mb_strlen

(PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8)

mb_strlen — Get string length

function mb_strlen(string $string, ?string $encoding = null): int

Gets the length of a string.

string: The string being checked for length.
encoding: Der Parameter encoding legt die Zeichenkodierung fest. Wird er nicht übergeben, so wird die interne Zeichenkodierung genutzt.

Returns the number of characters in string string having character encoding encoding. A multi-byte character is counted as 1.

As of PHP 8.0.0, a ValueError is thrown if encoding is an invalid encoding. Prior to PHP 8.0.0, an E_WARNING was emitted instead.

Version	Beschreibung
8.0.0	`encoding` ist nun nullable (akzeptiert den `null`-Wert).
8.0.0	Now throws a ValueError if `encoding` is an invalid encoding. Previously, an `E_WARNING` was emitted and `false` was returned.