Sophie: php-manual-pt_BR-5.2.4-1mdv2008.1 noarch

php-manual-pt_BR-5.2.4-1mdv2008.1.noarch.rpm

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>hash_hmac</H1
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><A
NAME="AEN69508"
></A
><P
>    (no version information, might be only in CVS)</P
>hash_hmac&nbsp;--&nbsp;Generate a keyed hash value using the HMAC method</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN69511"
></A
><H2
>Descrição</H2
>string <B
CLASS="methodname"
>hash_hmac</B
> ( string algo, string data, string key [, bool raw_output] )<BR
></BR
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN69528"
></A
><H2
>Parâmetros</H2
><P
>&#13;   <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>algo</CODE
></DT
><DD
><P
>&#13;       Name of selected hashing algorithm (i.e. "md5", "sha256", "haval160,4", etc..)
      </P
></DD
><DT
><CODE
CLASS="parameter"
>data</CODE
></DT
><DD
><P
>&#13;       Message to be hashed.
      </P
></DD
><DT
><CODE
CLASS="parameter"
>key</CODE
></DT
><DD
><P
>&#13;       Shared secret key used for generating the HMAC variant of the message digest.
      </P
></DD
><DT
><CODE
CLASS="parameter"
>raw_output</CODE
></DT
><DD
><P
>&#13;       When set to <TT
CLASS="constant"
><B
>TRUE</B
></TT
>, outputs raw binary data.
       Default value (<TT
CLASS="constant"
><B
>FALSE</B
></TT
>) outputs lowercase hexits.
      </P
></DD
></DL
></DIV
>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN69554"
></A
><H2
>Valores de retornado</H2
><P
>&#13;   Returns a string containing the calculated message digest as lowercase hexits
   unless <CODE
CLASS="parameter"
>raw_output</CODE
> is set to true in which case the raw
   binary representation of the message digest is returned.
  </P
></DIV
><DIV
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><A
NAME="AEN69558"
></A
><H2
>Exemplos</H2
><P
>&#13;   <TABLE
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></A
><P
><B
>Exemplo 1. <B
CLASS="function"
>hash_hmac()</B
> example</B
></P
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br /></font><font color="#007700">echo </font><font color="#0000BB">hash_hmac</font><font color="#007700">(</font><font color="#DD0000">'ripemd160'</font><font color="#007700">, </font><font color="#DD0000">'The quick brown fox jumped over the lazy dog.'</font><font color="#007700">, </font><font color="#DD0000">'secret'</font><font color="#007700">);<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
></TR
></TABLE
><P
>O exemplo acima irá imprimir:</P
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>b8e7ae12510bdfb1812e463a7f086122cf37e4f7</PRE
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>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN69567"
></A
><H2
>Veja também</H2
><P
>&#13;   <P
></P
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><A
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>hash()</B
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><B
CLASS="function"
>hash_init()</B
></A
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HREF="function.hash-hmac-file.html"
><B
CLASS="function"
>hash_hmac_file()</B
></A
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>
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>hash_hmac_file</TD
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>hash_init</TD
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