mixed File_Passwd_Unix::setMode (
Set encryption mode to use.
Supported encryption modes are 'des' and 'md5'.
You can use the constants FILE_PASSWD_MD5 and FILE_PASSWD_DES for this purpose.
encryption mode to use
Returns TRUE on success, PEAR_Error on failure.
Returns PEAR_Error FILE_PASSWD_E_INVALID_ENC_MODE, if supplied encryption mode is not supported.
This function can not be called statically.