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

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><H1
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>ocilogon</H1
><DIV
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><A
NAME="AEN155138"
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><P
>    (PHP 3 &#62;= 3.0.4, PHP 4, PHP 5)</P
>ocilogon&nbsp;--&nbsp;Estabiliza uma conexão com o Oracle</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN155141"
></A
><H2
>Descrição</H2
>resource <B
CLASS="methodname"
>ocilogon</B
> ( string username, string password [, string db] )<BR
></BR
><P
>&#13;     <B
CLASS="function"
>ocilogon()</B
> retorna um identificador de conexão
     necessária para a grande maioria das outras funções OCI. O terceiro parâmetro opcional 
     pode conter cada nome local de uma instância Oracle ou o
     nome colocado no arquivo tnsnames.ora para cada qual onde você queira conectar.
     Se o terceiro parâmetro não for especificado, PHP usará o nome definido na
     variável ORACLE_SID (instância Oracle) ou TWO_TASK
     (tnsnames.ora) para determinar em qual database ele irá conectar.
    </P
><P
>Conexões são compartilhadas por nível de página quando usando
     <B
CLASS="function"
>ocilogon()</B
>.  Isto significa que commits e
     rollbacks serão aplicados para todas as transações abertas na página, sempre que você tiver que criado múltiplas conexões.
     
    </P
><P
>&#13;     Esse exemplo demonstra como conexões são compartilhadas.
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><DIV
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><P
><B
>Exemplo 1. <B
CLASS="function"
>ocilogon()</B
> example</B
></P
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br /></font><font color="#007700">print </font><font color="#DD0000">"&lt;PRE&gt;"</font><font color="#007700">;<br /></font><font color="#0000BB">$db </font><font color="#007700">= </font><font color="#DD0000">""</font><font color="#007700">;<br /><br /></font><font color="#0000BB">$c1 </font><font color="#007700">= </font><font color="#0000BB">ocilogon</font><font color="#007700">(</font><font color="#DD0000">"scott"</font><font color="#007700">,</font><font color="#DD0000">"tiger"</font><font color="#007700">,</font><font color="#0000BB">$db</font><font color="#007700">);<br /></font><font color="#0000BB">$c2 </font><font color="#007700">= </font><font color="#0000BB">ocilogon</font><font color="#007700">(</font><font color="#DD0000">"scott"</font><font color="#007700">,</font><font color="#DD0000">"tiger"</font><font color="#007700">,</font><font color="#0000BB">$db</font><font color="#007700">);<br /><br />function </font><font color="#0000BB">create_table</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">)<br />{ </font><font color="#0000BB">$stmt </font><font color="#007700">= </font><font color="#0000BB">ociparse</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">,</font><font color="#DD0000">"create table scott.hallo (test varchar2(64))"</font><font color="#007700">);<br />&nbsp;&nbsp;</font><font color="#0000BB">ociexecute</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">);<br />&nbsp;&nbsp;echo </font><font color="#0000BB">$conn</font><font color="#007700">.</font><font color="#DD0000">" created table\n\n"</font><font color="#007700">;<br />}<br /><br />function </font><font color="#0000BB">drop_table</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">)<br />{ </font><font color="#0000BB">$stmt </font><font color="#007700">= </font><font color="#0000BB">ociparse</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">,</font><font color="#DD0000">"drop table scott.hallo"</font><font color="#007700">);<br />&nbsp;&nbsp;</font><font color="#0000BB">ociexecute</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">);<br />&nbsp;&nbsp;echo </font><font color="#0000BB">$conn</font><font color="#007700">.</font><font color="#DD0000">" dropped table\n\n"</font><font color="#007700">;<br />}<br /><br />function </font><font color="#0000BB">insert_data</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">)<br />{ </font><font color="#0000BB">$stmt </font><font color="#007700">= </font><font color="#0000BB">ociparse</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">,</font><font color="#DD0000">"insert into scott.hallo <br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;values('$conn' || ' ' || to_char(sysdate,'DD-MON-YY HH24:MI:SS'))"</font><font color="#007700">);<br />&nbsp;&nbsp;</font><font color="#0000BB">ociexecute</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">,</font><font color="#0000BB">OCI_DEFAULT</font><font color="#007700">);<br />&nbsp;&nbsp;echo </font><font color="#0000BB">$conn</font><font color="#007700">.</font><font color="#DD0000">" inserted hallo\n\n"</font><font color="#007700">;<br />}<br /><br />function </font><font color="#0000BB">delete_data</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">)<br />{ </font><font color="#0000BB">$stmt </font><font color="#007700">= </font><font color="#0000BB">ociparse</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">,</font><font color="#DD0000">"delete from scott.hallo"</font><font color="#007700">);<br />&nbsp;&nbsp;</font><font color="#0000BB">ociexecute</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">,</font><font color="#0000BB">OCI_DEFAULT</font><font color="#007700">);<br />&nbsp;&nbsp;echo </font><font color="#0000BB">$conn</font><font color="#007700">.</font><font color="#DD0000">" deleted hallo\n\n"</font><font color="#007700">;<br />}<br /><br />function </font><font color="#0000BB">commit</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">)<br />{ </font><font color="#0000BB">ocicommit</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">);<br />&nbsp;&nbsp;echo </font><font color="#0000BB">$conn</font><font color="#007700">.</font><font color="#DD0000">" committed\n\n"</font><font color="#007700">;<br />}<br /><br />function </font><font color="#0000BB">rollback</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">)<br />{ </font><font color="#0000BB">ocirollback</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">);<br />&nbsp;&nbsp;echo </font><font color="#0000BB">$conn</font><font color="#007700">.</font><font color="#DD0000">" rollback\n\n"</font><font color="#007700">;<br />}<br /><br />function </font><font color="#0000BB">select_data</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">)<br />{ </font><font color="#0000BB">$stmt </font><font color="#007700">= </font><font color="#0000BB">ociparse</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">,</font><font color="#DD0000">"select * from scott.hallo"</font><font color="#007700">);<br />&nbsp;&nbsp;</font><font color="#0000BB">ociexecute</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">,</font><font color="#0000BB">OCI_DEFAULT</font><font color="#007700">);<br />&nbsp;&nbsp;echo </font><font color="#0000BB">$conn</font><font color="#007700">.</font><font color="#DD0000">"----selecting\n\n"</font><font color="#007700">;<br />&nbsp;&nbsp;while (</font><font color="#0000BB">ocifetch</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">))<br />&nbsp;&nbsp;&nbsp;&nbsp;echo </font><font color="#0000BB">$conn</font><font color="#007700">.</font><font color="#DD0000">" ["</font><font color="#007700">.</font><font color="#0000BB">ociresult</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">,</font><font color="#DD0000">"TEST"</font><font color="#007700">).</font><font color="#DD0000">"]\n\n"</font><font color="#007700">;<br />&nbsp;&nbsp;echo </font><font color="#0000BB">$conn</font><font color="#007700">.</font><font color="#DD0000">"----done\n\n"</font><font color="#007700">;<br />}<br /><br /></font><font color="#0000BB">create_table</font><font color="#007700">(</font><font color="#0000BB">$c1</font><font color="#007700">);<br /></font><font color="#0000BB">insert_data</font><font color="#007700">(</font><font color="#0000BB">$c1</font><font color="#007700">);&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">// Insert a row using c1<br /></font><font color="#0000BB">insert_data</font><font color="#007700">(</font><font color="#0000BB">$c2</font><font color="#007700">);&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">// Insert a row using c2<br /><br /></font><font color="#0000BB">select_data</font><font color="#007700">(</font><font color="#0000BB">$c1</font><font color="#007700">);&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">// Results of both inserts are returned<br /></font><font color="#0000BB">select_data</font><font color="#007700">(</font><font color="#0000BB">$c2</font><font color="#007700">);&nbsp;&nbsp;&nbsp;<br /><br /></font><font color="#0000BB">rollback</font><font color="#007700">(</font><font color="#0000BB">$c1</font><font color="#007700">);&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">// Rollback using c1<br /><br /></font><font color="#0000BB">select_data</font><font color="#007700">(</font><font color="#0000BB">$c1</font><font color="#007700">);&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">// Both inserts have been rolled back<br /></font><font color="#0000BB">select_data</font><font color="#007700">(</font><font color="#0000BB">$c2</font><font color="#007700">);&nbsp;&nbsp;&nbsp;<br /><br /></font><font color="#0000BB">insert_data</font><font color="#007700">(</font><font color="#0000BB">$c2</font><font color="#007700">);&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">// Insert a row using c2<br /></font><font color="#0000BB">commit</font><font color="#007700">(</font><font color="#0000BB">$c2</font><font color="#007700">);&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">// Commit using c2<br /><br /></font><font color="#0000BB">select_data</font><font color="#007700">(</font><font color="#0000BB">$c1</font><font color="#007700">);&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">// Result of c2 insert is returned<br /><br /></font><font color="#0000BB">delete_data</font><font color="#007700">(</font><font color="#0000BB">$c1</font><font color="#007700">);&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">// Delete all rows in table using c1<br /></font><font color="#0000BB">select_data</font><font color="#007700">(</font><font color="#0000BB">$c1</font><font color="#007700">);&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">// No rows returned<br /></font><font color="#0000BB">select_data</font><font color="#007700">(</font><font color="#0000BB">$c2</font><font color="#007700">);&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">// No rows returned<br /></font><font color="#0000BB">commit</font><font color="#007700">(</font><font color="#0000BB">$c1</font><font color="#007700">);&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">// Commit using c1<br /><br /></font><font color="#0000BB">select_data</font><font color="#007700">(</font><font color="#0000BB">$c1</font><font color="#007700">);&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">// No rows returned<br /></font><font color="#0000BB">select_data</font><font color="#007700">(</font><font color="#0000BB">$c2</font><font color="#007700">);&nbsp;&nbsp;&nbsp;</font><font color="#FF8000">// No rows returned<br /><br /></font><font color="#0000BB">drop_table</font><font color="#007700">(</font><font color="#0000BB">$c1</font><font color="#007700">);<br />print </font><font color="#DD0000">"&lt;/PRE&gt;"</font><font color="#007700">;<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
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>
    </P
><P
>&#13;     Veja também <A
HREF="function.ociplogon.html"
><B
CLASS="function"
>ociplogon()</B
></A
> e
     <A
HREF="function.ocinlogon.html"
><B
CLASS="function"
>ocinlogon()</B
></A
>.</P
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