mcrypt_enc_is_block_algorithm_mode

Checks whether the encryption of the opened mode works on blocks

&warn.deprecated.function-7-1-0.removed-7-2-0;
&reftitle.description; `bool` `mcrypt_enc_is_block_algorithm_mode` `resource` `td`

Tells whether the algorithm of the opened mode works on blocks (e.g. &false; for stream, and &true; for cbc, cfb, ofb)..

&reftitle.parameters;

`td`

- The encryption descriptor.

&reftitle.returnvalues;

Returns &true; if the mode is for use with block algorithms, otherwise it returns &false;.