(PHP 4 >= 4.4.3, PHP 5 >= 5.1.3, PHP 7)
Check if the string is valid for the specified encoding
bool mb_check_encoding ([ string $var = NULL [, string $encoding = mb_internal_encoding() ]] )
Checks if the specified byte stream is valid for the specified encoding. It is useful to prevent so-called "Invalid Encoding Attack".
Parameters:
var
The byte stream to check. If it is omitted, this function checks all the input from the beginning of the request.
encoding
The expected encoding.
Returns:
Returns TRUE on success or FALSE on failure.
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