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

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>SAMConnection-&#62;peek()</H1
><DIV
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><A
NAME="AEN196002"
></A
><P
>    (no version information, might be only in CVS)</P
>SAMConnection-&#62;peek()&nbsp;--&nbsp;
   Read a message from a queue without removing it from the queue.
  </DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN196005"
></A
><H2
>Descrição</H2
>class <B
CLASS="classname"
>SAMConnection</B
> { <BR
></BR
>SAMMessage <B
CLASS="methodname"
>peek</B
> ( string target [, array properties] )<BR
></BR
>}</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN196019"
></A
><H2
>Parâmetros</H2
><P
>&#13;   <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>target</CODE
></DT
><DD
><P
>&#13;       The identity of the queue from which to peek the message.
      </P
></DD
><DT
><CODE
CLASS="parameter"
>properties</CODE
></DT
><DD
><P
>&#13;       An optional associative array of properties describing other
       parameters to control the peek operation.
       <DIV
CLASS="informaltable"
><P
></P
><A
NAME="AEN196033"
></A
><TABLE
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><COL><COL><THEAD
><TR
><TH
>Property name</TH
><TH
>Possible values</TH
></TR
></THEAD
><TBODY
><TR
><TD
>SAM_CORRELID</TD
><TD
>&#13;            This is the target correlation id string of the message. This
            would typically have been returned by a "send" request.
           </TD
></TR
><TR
><TD
>SAM_MESSAGEID</TD
><TD
>&#13;            This is the message id string of the message which is to be
            peeked.
           </TD
></TR
></TBODY
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><P
></P
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>
      </P
></DD
></DL
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>
  </P
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><DIV
CLASS="refsect1"
><A
NAME="AEN196046"
></A
><H2
>Valores de retornado</H2
><P
>&#13;   This method returns a SAMMessage object or <TT
CLASS="constant"
><B
>FALSE</B
></TT
> if an error occurs.
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN196050"
></A
><H2
>Exemplos</H2
><P
>&#13;   <TABLE
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><TR
><TD
><DIV
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><A
NAME="AEN196053"
></A
><P
><B
>Exemplo 1. Retrieve the next message from a queue without removing it</B
></P
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><TD
><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$msg </font><font color="#007700">= </font><font color="#0000BB">$conn</font><font color="#007700">-&gt;</font><font color="#0000BB">peek</font><font color="#007700">(</font><font color="#DD0000">'queue://receive/test'</font><font color="#007700">);<br /><br />if (!</font><font color="#0000BB">$msg</font><font color="#007700">) {<br />&nbsp;&nbsp;</font><font color="#FF8000">// The peek failed!<br />&nbsp;&nbsp;</font><font color="#007700">echo </font><font color="#DD0000">"Peek failed ($conn</font><font color="#007700">-&gt;</font><font color="#DD0000">errno) $conn</font><font color="#007700">-&gt;</font><font color="#DD0000">error"</font><font color="#007700">;<br />}<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
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>
  </P
><P
>&#13;   <TABLE
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><TR
><TD
><DIV
CLASS="example"
><A
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></A
><P
><B
>Exemplo 2. Retrieve a specific message from a queue without removing it from the queue</B
></P
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br /><br />$msg </font><font color="#007700">= </font><font color="#0000BB">$conn</font><font color="#007700">-&gt;</font><font color="#0000BB">peek</font><font color="#007700">(</font><font color="#DD0000">'queue://receive/test'</font><font color="#007700">, array(</font><font color="#0000BB">SAM_MESSAGEID </font><font color="#007700">=&gt; </font><font color="#0000BB">$messageId</font><font color="#007700">));<br /><br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
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></DIV
></TD
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>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN196060"
></A
><H2
>Veja também</H2
><P
>&#13;   <P
></P
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