oci-new-connect.xml

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<refentry xml:id="function.oci-new-connect" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 <refnamediv>
  <refname>oci_new_connect</refname>
  <refpurpose>Connect to the Oracle server using a unique connection</refpurpose>
 </refnamediv>
 
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type class="union"><type>resource</type><type>false</type></type><methodname>oci_new_connect</methodname>
   <methodparam><type>string</type><parameter>username</parameter></methodparam>
   <methodparam><type>string</type><parameter>password</parameter></methodparam>
   <methodparam choice="opt"><type class="union"><type>string</type><type>null</type></type><parameter>connection_string</parameter><initializer>&null;</initializer></methodparam>
   <methodparam choice="opt"><type>string</type><parameter>encoding</parameter><initializer>""</initializer></methodparam>
   <methodparam choice="opt"><type>int</type><parameter>session_mode</parameter><initializer><constant>OCI_DEFAULT</constant></initializer></methodparam>
  </methodsynopsis>
  <para>
   Establishes a new connection to an Oracle server and logs on.
  </para>
  <para>
   Unlike <function>oci_connect</function> and 
   <function>oci_pconnect</function>, <function>oci_new_connect</function>
   does not cache connections and will always return a brand-new freshly
   opened connection handle. This is useful if your application needs
   transactional isolation between two sets of queries.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>username</parameter></term>
     <listitem>
      <para>
       The Oracle user name.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>password</parameter></term>
     <listitem>
      <para>
       The password for <parameter>username</parameter>.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>connection_string</parameter></term>
     <listitem>
      &oci.db;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>encoding</parameter></term>
     <listitem>
      &oci.charset;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>session_mode</parameter></term>
     <listitem>
      &oci.sessionmode;
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns a connection identifier or &false; on error.
  </para>
 </refsect1>

 <refsect1 role="changelog">
  &reftitle.changelog;
  <informaltable>
   <tgroup cols="2">
    <thead>
     <row>
      <entry>&Version;</entry>
      <entry>&Description;</entry>
     </row>
    </thead>
    <tbody>
     <row>
      <entry>8.0.0, PECL OCI8 3.0.0</entry>
      <entry>
       <parameter>connection_string</parameter> is now nullable.
      </entry>
     </row>
    </tbody>
   </tgroup>
  </informaltable>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   The following demonstrates how you can separate connections.
   <example>
    <title><function>oci_new_connect</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php

// create table mytab (mycol number);

function query($name, $c)
{
    echo "Querying $name\n";
    $s = oci_parse($c, "select * from mytab");
    oci_execute($s, OCI_NO_AUTO_COMMIT);
    $row = oci_fetch_array($s, OCI_ASSOC);
    if (!$row) {
        echo "No rows\n";
    } else {
        do {
            foreach ($row as $item)
                echo $item . " ";
            echo "\n";
        } while (($row = oci_fetch_array($s, OCI_ASSOC)) != false);
    }
}

$c1 = oci_connect("hr", "welcome", "localhost/orcl");
$c2 = oci_new_connect("hr", "welcome", "localhost/orcl");

$s = oci_parse($c1, "insert into mytab values(1234)");
oci_execute($s, OCI_NO_AUTO_COMMIT);

query("basic connection", $c1);
query("new connection", $c2);
oci_commit($c1);
query("new connection after commit", $c2);

// Output is:
//   Querying basic connection
//   1234 
//   Querying new connection
//   No rows
//   Querying new connection after commit
//   1234 

?>
]]>
    </programlisting>
   </example>
  </para>
  <para>
    See <function>oci_connect</function> for further examples of parameter usage.
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>oci_connect</function></member>
    <member><function>oci_pconnect</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>
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