<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <HTML ><HEAD ><TITLE >mcrypt_get_block_size</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK REL="HOME" TITLE="Manual PHP" HREF="index.html"><LINK REL="UP" TITLE="Mcrypt Encryption Functions" HREF="ref.mcrypt.html"><LINK REL="PREVIOUS" TITLE="mcrypt_generic" HREF="function.mcrypt-generic.html"><LINK REL="NEXT" TITLE="mcrypt_get_cipher_name" HREF="function.mcrypt-get-cipher-name.html"><META HTTP-EQUIV="Content-type" CONTENT="text/html; charset=ISO-8859-2"></HEAD ><BODY CLASS="refentry" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >Manual PHP</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="function.mcrypt-generic.html" ACCESSKEY="P" >Înapoi</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.mcrypt-get-cipher-name.html" ACCESSKEY="N" >Înainte</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.mcrypt-get-block-size" ></A >mcrypt_get_block_size</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN55469" ></A ><P > (PHP 3>= 3.0.8, PHP 4 , PHP 5)</P >mcrypt_get_block_size -- Get the block size of the specified cipher</DIV ><DIV CLASS="refsect1" ><A NAME="AEN55472" ></A ><H2 >Description</H2 >int <B CLASS="methodname" >mcrypt_get_block_size</B > ( int cipher)<BR ></BR >int <B CLASS="methodname" >mcrypt_get_block_size</B > ( string cipher, string module)<BR ></BR ><P > The first prototype is when linked against libmcrypt 2.2.x, the second when linked against libmcrypt 2.4.x or 2.5.x. </P ><P > <B CLASS="function" >mcrypt_get_block_size()</B > is used to get the size of a block of the specified <VAR CLASS="parameter" >cipher</VAR > (in combination with an encryption mode). </P ><P > It is more useful to use the <A HREF="function.mcrypt-enc-get-block-size.html" ><B CLASS="function" >mcrypt_enc_get_block_size()</B ></A > function as this uses the resource returned by <A HREF="function.mcrypt-module-open.html" ><B CLASS="function" >mcrypt_module_open()</B ></A >. </P ><P > This example shows how to use this function when linked against libmcrypt 2.4.x and 2.5.x. <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN55497" ></A ><P ><B >Exemplu 1. <B CLASS="function" >mcrypt_get_block_size()</B > example</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br /> </font><font color="#007700">echo </font><font color="#0000BB">mcrypt_get_block_size</font><font color="#007700">(</font><font color="#DD0000">'tripledes'</font><font color="#007700">, </font><font color="#DD0000">'ecb'</font><font color="#007700">);<br /></font><font color="#0000BB">?><br /></font><br />Prints:<br />8</font> </code></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ><P > See also: <A HREF="function.mcrypt-get-key-size.html" ><B CLASS="function" >mcrypt_get_key_size()</B ></A >, <A HREF="function.mcrypt-enc-get-block-size.html" ><B CLASS="function" >mcrypt_enc_get_block_size()</B ></A > and <A HREF="function.mcrypt-encrypt.html" ><B CLASS="function" >mcrypt_encrypt()</B ></A >. </P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="function.mcrypt-generic.html" ACCESSKEY="P" >Înapoi</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Acasã</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="function.mcrypt-get-cipher-name.html" ACCESSKEY="N" >Înainte</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >mcrypt_generic</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.mcrypt.html" ACCESSKEY="U" >Sus</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >mcrypt_get_cipher_name</TD ></TR ></TABLE ></DIV ></BODY ></HTML >