mb_check_encoding

(PHP 4 >= 4.4.3, PHP 5 >= 5.1.3, PHP 7, PHP 8)

mb_check_encoding — Check if strings are valid for the specified encoding

Beschreibung

mb_check_encoding(array|string|null $value = null, ?string $encoding = null): bool

Checks if the specified byte stream is valid for the specified encoding. If value is of type Array, all keys and values are validated recursively. It is useful to prevent so-called "Invalid Encoding Attack".

Parameter-Liste

value: The byte stream or Array to check. If it is omitted, this function checks all the input from the beginning of the request.

Warnung
As of PHP 8.1.0, omitting this parameter or passing null is deprecated.
encoding: The expected encoding.

Rückgabewerte

Gibt bei Erfolg true zurück. Bei einem Fehler wird false zurückgegeben.

Changelog

Version	Beschreibung
8.1.0	Calling this function with `null` as `value` or without argument is deprecated.
8.0.0	`value` and `encoding` are nullable now.
7.2.0	This function now also accepts an Array as `value`. Formerly, only Strings have been supported.

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