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<!-- $Revision: 1.7 $ -->
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<refentry xml:id="function.mcrypt-module-is-block-mode" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>mcrypt_module_is_block_mode</refname>
  <refpurpose>Returns if the specified mode outputs blocks or not</refpurpose>
 </refnamediv>
 <refsect1>
  <title>Description</title>
  <methodsynopsis>
   <type>bool</type><methodname>mcrypt_module_is_block_mode</methodname>
   <methodparam><type>string</type><parameter>mode</parameter></methodparam>
   <methodparam choice="opt"><type>string</type><parameter>lib_dir</parameter></methodparam>
  </methodsynopsis>
  <para>
   This function returns &true; if the mode outputs blocks of bytes or
   &false; if it outputs just bytes. (e.g. &true; for cbc and ecb, and
   &false; for cfb and stream). The optional <parameter>lib_dir</parameter>
   parameter can contain the location where the mode module is on the
   system.
  </para>
 </refsect1>
</refentry>

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