mcrypt_enc_is_block_mode
PHP 4 >= 4.0.2, PHP 5, PHP 7 < 7.2.0, PECL mcrypt >= 1.0.0
mcrypt_enc_is_block_mode - Checks whether the opened mode outputs blocks
Manual
mcrypt_enc_is_block_mode(
resource$td ): bool
Tells whether the opened mode outputs blocks (e.g. true for cbc and ecb, and false for cfb and stream).
Parameters
- td
-
The encryption descriptor.
Return Values
Returns true if the mode outputs blocks of bytes, or false if it outputs just bytes.