<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.db2-set-option">
  <refnamediv>
    <refname>db2_set_option</refname>
    <refpurpose>Set options for connection or statement resources</refpurpose>
  </refnamediv>
  <refsect1 role="description">
    &reftitle.description;
    <methodsynopsis>
      <type>bool</type><methodname>db2_set_option</methodname>
      <methodparam><type>resource</type><parameter>resource</parameter></methodparam>      
      <methodparam><type>array</type><parameter>options</parameter></methodparam>
      <methodparam><type>int</type><parameter>type</parameter></methodparam>
    </methodsynopsis>
    <para>
     Sets options for a statement resource or a connection resource. You
     cannot set options for result set resources. 
    </para>
  </refsect1>
  <refsect1 role="parameters">
    &reftitle.parameters;
    <para>
      <variablelist>
        <varlistentry>
          <term><parameter>resource</parameter></term>
          <listitem>
            <para>
             A valid statement resource as returned from
             <function>db2_prepare</function> or a valid connection resource as
             returned from <function>db2_connect</function> or
             <function>db2_pconnect</function>.
            </para>
          </listitem>
        </varlistentry>
        <varlistentry>
          <term><parameter>options</parameter></term>
          <listitem>
            <para>
             An associative array containing valid statement or connection
             options. This parameter can be used to change autocommit values,
             cursor types (scrollable or forward), and to specify the case of
             the column names (lower, upper, or natural) that will appear in a
             result set.
              <variablelist>
                <varlistentry>
                  <term><parameter>autocommit</parameter></term>
                  <listitem>
                    <para>
                     Passing <literal>DB2_AUTOCOMMIT_ON</literal> turns
                     autocommit on for the specified connection resource.
                    </para>
                    <para>
                     Passing <literal>DB2_AUTOCOMMIT_OFF</literal> turns
                     autocommit off for the specified connection resource.
                    </para>
                  </listitem>
                </varlistentry>
                <varlistentry>
                  <term><parameter>cursor</parameter></term>
                  <listitem>
                    <para>
                     Passing <literal>DB2_FORWARD_ONLY</literal> specifies a
                     forward-only cursor for a statement resource. This is the
                     default cursor type, and is supported by all database
                     servers.
                    </para>
                    <para>
                     Passing <literal>DB2_SCROLLABLE</literal> specifies a
                     scrollable cursor for a statement resource. Scrollable
                     cursors enable result set rows to be accessed in
                     non-sequential order, but are only supported by
                     IBM DB2 Universal Database databases.
                    </para>
                  </listitem>
                </varlistentry>
                <varlistentry>
                  <term><parameter>binmode</parameter></term>
                  <listitem>
                    <para>
                     Passing <literal>DB2_BINARY</literal> specifies that
                     binary data will be returned as is. This is the default
                     mode. This is the equivalent of setting
                     <literal>ibm_db2.binmode=1</literal> in &php.ini;.
                    </para>
                    <para>
                     Passing <literal>DB2_CONVERT</literal> specifies that
                     binary data will be converted to hexadecimal encoding,
                     and will be returned as such. This is the equivalent of
                     setting <literal>ibm_db2.binmode=2</literal> in &php.ini;.
                    </para>
                    <para>
                     Passing <literal>DB2_PASSTHRU</literal> specifies that
                     binary data will be converted to &null;. This is the
                     equivalent of setting <literal>ibm_db2.binmode=3</literal>
                     in &php.ini;.
                    </para>
                  </listitem>
                </varlistentry>
                <varlistentry>
                  <term><parameter>db2_attr_case</parameter></term>
                  <listitem>
                    <para>
                     Passing <literal>DB2_CASE_LOWER</literal> specifies that
                     column names of the result set are returned in lower case.
                    </para>
                    <para>
                     Passing <literal>DB2_CASE_UPPER</literal> specifies that
                     column names of the result set are returned in upper case.
                    </para>
                    <para>
                     Passing <literal>DB2_CASE_NATURAL</literal> specifies that
                     column names of the result set are returned in natural
                     case.
                    </para>
                  </listitem>
                </varlistentry>
                <varlistentry>
                 <term><parameter>deferred_prepare</parameter></term>
                 <listitem>
                  <para>
                   Passing <literal>DB2_DEFERRED_PREPARE_ON</literal> turns deferred 
                   prepare on for the specified statement resource.
                  </para>
                  <para>
                   Passing <literal>DB2_DEFERRED_PREPARE_OFF</literal> turns deferred 
                   prepare off for the specified statement resource.
                  </para>
                 </listitem>
                </varlistentry>                
              </variablelist>
            </para>
            <para>
             The following new i5/OS options are available in ibm_db2 version 1.5.1 
             and later. These options apply only when running PHP and ibm_db2 natively on i5 systems.
              <variablelist>
                <varlistentry>
                  <term><parameter>i5_fetch_only</parameter></term>
                  <listitem>
                    <para>
                     <literal>DB2_I5_FETCH_ON</literal> - Cursors are read-only 
                     and cannot be used for positioned updates or deletes. This 
                     is the default unless <literal>SQL_ATTR_FOR_FETCH_ONLY</literal> 
                     environment has been set to <literal>SQL_FALSE</literal>.
                    </para>
                    <para>
                     <literal>DB2_I5_FETCH_OFF</literal> - Cursors can be used 
                     for positioned updates and deletes.
                    </para>
                  </listitem>
                </varlistentry>
               </variablelist>
            </para>
            <para>
             The following new option is available in ibm_db2 version 1.8.0 and later.
              <variablelist>
                <varlistentry>
                  <term><parameter>rowcount</parameter></term>
                  <listitem>
                    <para>
                     <literal>DB2_ROWCOUNT_PREFETCH_ON</literal> - Client can request 
                     the full row count prior to fetching, which means that 
                     <function>db2_num_rows</function> returns the number of rows selected 
                     even when a <literal>ROLLFORWARD_ONLY</literal> cursor is used.
                    </para>
                    <para>
                     <literal>DB2_ROWCOUNT_PREFETCH_OFF</literal> - Client cannot request
                     the full row count prior to fetching.
                    </para>
                  </listitem>
                </varlistentry>
              </variablelist>
            </para>            
            <para>
             The following new options are available in ibm_db2 version 1.7.0 and later.
              <variablelist>
                <varlistentry>
                  <term><parameter>trusted_user</parameter></term>
                  <listitem>
                    <para>
                     To switch the user to a trusted user, pass the User ID (String) 
                     of the trusted user as the value of this key. This option can 
                     be set on a connection resource only. To use this option, trusted
                     context must be enabled on the connection resource.
                    </para>
                  </listitem>
                </varlistentry>
                <varlistentry>
                  <term><parameter>trusted_password</parameter></term>
                  <listitem>
                    <para>
                     The password (String) that corresponds to the user specified
                     by the trusted_user key.
                    </para>
                  </listitem>
                </varlistentry>                
               </variablelist>
            </para>            
            <para>
             The following new options are available in ibm_db2 version 1.6.0 and later. 
             These options provide useful tracking information that can be accessed during 
             execution with <function>db2_get_option</function>.
             <note>
              <para>
               When the value in each option is being set, some servers might not handle 
               the entire length provided and might truncate the value.
              </para>
              <para>
               To ensure that the data specified in each option is converted correctly 
               when transmitted to a host system, use only the characters A through Z, 
               0 through 9, and the underscore (_) or period (.).
              </para>
             </note>
             <variablelist>
              <varlistentry>
               <term><parameter>userid</parameter></term>
               <listitem>
                <para>
                 <literal>SQL_ATTR_INFO_USERID</literal> - A pointer to a null-terminated 
                 character string used to identify the client user ID sent to the host 
                 database server when using DB2 Connect.
                 <note>
                  <para>
                   DB2 for z/OS and OS/390 servers support up to a length of 16 characters. 
                   This user-id is not to be confused with the authentication user-id, it is for 
                   identification purposes only and is not used for any authorization.
                  </para>
                 </note>
                </para>
               </listitem>
              </varlistentry>
              <varlistentry>
               <term><parameter>acctstr</parameter></term>
               <listitem>
                <para>
                 <literal>SQL_ATTR_INFO_ACCTSTR</literal> - A pointer to a null-terminated 
                 character string used to identify the client accounting string sent to the 
                 host database server when using DB2 Connect.
                 <note>
                  <para>
                   DB2 for z/OS and OS/390 servers support up to a length of 200 characters.
                  </para>
                 </note>
                </para>
               </listitem>
              </varlistentry>
              <varlistentry>
               <term><parameter>applname</parameter></term>
               <listitem>
                <para>
                 <literal>SQL_ATTR_INFO_APPLNAME</literal> - A pointer to a null-terminated 
                 character string used to identify the client application name sent to the 
                 host database server when using DB2 Connect.
                 <note>
                  <para>
                   DB2 for z/OS and OS/390 servers support up to a length of 32 characters.
                  </para>
                 </note>
                </para>
               </listitem>
              </varlistentry>
              <varlistentry>
               <term><parameter>wrkstnname</parameter></term>
               <listitem>
                <para>
                 <literal>SQL_ATTR_INFO_WRKSTNNAME</literal> - A pointer to a null-terminated 
                 character string used to identify the client workstation name sent to the 
                 host database server when using DB2 Connect.
                 <note>
                  <para>
                   DB2 for z/OS and OS/390 servers support up to a length of 18 characters.
                  </para>
                 </note>
                </para>
               </listitem>
              </varlistentry>
             </variablelist>
            </para>
          </listitem>
        </varlistentry>
        <varlistentry>
          <term><parameter>type</parameter></term>
          <listitem>
            <para>
             An integer value that specifies the type of resource that was
             passed into the function. The type of resource and this value
             must correspond.
            </para>
            <para>
             Passing <literal>1</literal> as the value specifies that
             a connection resource has been passed into the function.
            </para>
            <para>
             Passing any integer not equal to <literal>1</literal> as
             the value specifies that a statement resource has been
             passed into the function.
            </para>
          </listitem>
        </varlistentry>
      </variablelist>
    </para>
    <para>
    </para>
    <para>
     The following table specifies which options are compatible with
     the available resource types:
      <table>
        <title>Resource-Parameter Matrix</title>
        <tgroup cols="5">
          <colspec colnum="1" colname="col1" align="center" />
          <colspec colnum="2" colname="col2" align="center" />
          <colspec colnum="3" colname="col3" align="center" />
          <colspec colnum="4" colname="col4" align="center" />
          <colspec colnum="5" colname="col5" align="center" />
          
          <thead>
            <row>
              <entry morerows="1">Key</entry>
              <entry morerows="1">Value</entry>
              <entry namest="col3" nameend="col5">Resource Type</entry>
            </row>
          </thead>

          <tbody>
            <row>
              <entry colname="col3">Connection</entry>
              <entry colname="col4">Statement</entry>
              <entry colname="col5">Result Set</entry>
            </row>
            <row>
              <entry>autocommit</entry>
              <entry><literal>DB2_AUTOCOMMIT_ON</literal></entry>
              <entry colname="col3">X</entry>
              <entry colname="col4">-</entry>
              <entry colname="col5">-</entry>
            </row>
            <row>
              <entry>autocommit</entry>
              <entry><literal>DB2_AUTOCOMMIT_OFF</literal></entry>
              <entry colname="col3">X</entry>
              <entry colname="col4">-</entry>
              <entry colname="col5">-</entry>
            </row>
            <row>
              <entry>cursor</entry>
              <entry><literal>DB2_SCROLLABLE</literal></entry>
              <entry colname="col3">-</entry>
              <entry colname="col4">X</entry>
              <entry colname="col5">-</entry>
            </row>
            <row>
              <entry>cursor</entry>
              <entry><literal>DB2_FORWARD_ONLY</literal></entry>
              <entry colname="col3">-</entry>
              <entry colname="col4">X</entry>
              <entry colname="col5">-</entry>
            </row>
            <row>
              <entry>binmode</entry>
              <entry><literal>DB2_BINARY</literal></entry>
              <entry colname="col3">X</entry>
              <entry colname="col4">X</entry>
              <entry colname="col5">-</entry>
            </row>
            <row>
              <entry>binmode</entry>
              <entry><literal>DB2_CONVERT</literal></entry>
              <entry colname="col3">X</entry>
              <entry colname="col4">X</entry>
              <entry colname="col5">-</entry>
            </row>
            <row>
              <entry>binmode</entry>
              <entry><literal>DB2_PASSTHRU</literal></entry>
              <entry colname="col3">X</entry>
              <entry colname="col4">X</entry>
              <entry colname="col5">-</entry>
            </row>
            <row>
              <entry>db2_attr_case</entry>
              <entry><literal>DB2_CASE_LOWER</literal></entry>
              <entry colname="col3">X</entry>
              <entry colname="col4">X</entry>
              <entry colname="col5">-</entry>
            </row>
            <row>
              <entry>db2_attr_case</entry>
              <entry><literal>DB2_CASE_UPPER</literal></entry>
              <entry colname="col3">X</entry>
              <entry colname="col4">X</entry>
              <entry colname="col5">-</entry>
            </row>
            <row>
              <entry>db2_attr_case</entry>
              <entry><literal>DB2_CASE_NATURAL</literal></entry>
              <entry colname="col3">X</entry>
              <entry colname="col4">X</entry>
              <entry colname="col5">-</entry>
            </row>
            <row>
              <entry>deferred_prepare</entry>
              <entry><literal>DB2_DEFERRED_PREPARE_ON</literal></entry>
              <entry colname="col3">-</entry>
              <entry colname="col4">X</entry>
              <entry colname="col5">-</entry>
            </row>
            <row>
              <entry>deferred_prepare</entry>
              <entry><literal>DB2_DEFERRED_PREPARE_OFF</literal></entry>
              <entry colname="col3">-</entry>
              <entry colname="col4">X</entry>
              <entry colname="col5">-</entry>
            </row>
            <row>
              <entry>i5_fetch_only</entry>
              <entry><literal>DB2_I5_FETCH_ON</literal></entry>
              <entry colname="col3">-</entry>
              <entry colname="col4">X</entry>
              <entry colname="col5">-</entry>
            </row>
            <row>
              <entry>i5_fetch_only</entry>
              <entry><literal>DB2_I5_FETCH_OFF</literal></entry>
              <entry colname="col3">-</entry>
              <entry colname="col4">X</entry>
              <entry colname="col5">-</entry>
            </row>
            <row>
              <entry>rowcount</entry>
              <entry><literal>DB2_ROWCOUNT_PREFETCH_ON</literal></entry>
              <entry colname="col3">-</entry>
              <entry colname="col4">X</entry>
              <entry colname="col5">-</entry>
            </row>
            <row>
              <entry>rowcount</entry>
              <entry><literal>DB2_ROWCOUNT_PREFETCH_OFF</literal></entry>
              <entry colname="col3">-</entry>
              <entry colname="col4">X</entry>
              <entry colname="col5">-</entry>
            </row>
            <row>
              <entry>trusted_user</entry>
              <entry><literal>&lt;USER NAME&gt; (String)</literal></entry>
              <entry colname="col3">X</entry>
              <entry colname="col4">-</entry>
              <entry colname="col5">-</entry>
            </row>
            <row>
              <entry>trusted_password</entry>
              <entry><literal>&lt;PASSWORD&gt; (String)</literal></entry>
              <entry colname="col3">X</entry>
              <entry colname="col4">-</entry>
              <entry colname="col5">-</entry>
            </row>
            <row>
              <entry>userid</entry>
              <entry><literal>SQL_ATTR_INFO_USERID</literal></entry>
              <entry colname="col3">X</entry>
              <entry colname="col4">X</entry>
              <entry colname="col5">-</entry>
            </row>
            <row>
              <entry>acctstr</entry>
              <entry><literal>SQL_ATTR_INFO_ACCTSTR</literal></entry>
              <entry colname="col3">X</entry>
              <entry colname="col4">X</entry>
              <entry colname="col5">-</entry>
            </row>
            <row>
              <entry>applname</entry>
              <entry><literal>SQL_ATTR_INFO_APPLNAME</literal></entry>
              <entry colname="col3">X</entry>
              <entry colname="col4">X</entry>
              <entry colname="col5">-</entry>
            </row>
            <row>
              <entry>wrkstnname</entry>
              <entry><literal>SQL_ATTR_INFO_WRKSTNNAME</literal></entry>
              <entry colname="col3">X</entry>
              <entry colname="col4">X</entry>
              <entry colname="col5">-</entry>
            </row>
          </tbody>
        </tgroup>
      </table>
    </para>
  </refsect1>
  
  <refsect1 role="returnvalues">
    &reftitle.returnvalues;
    <para>
     &return.success;
    </para>
  </refsect1>
  <!-- Place Changelog next if any -->
  
  <!-- Place Examples next if any -->
  <refsect1 role="examples">
    &reftitle.examples;
    <para>

      <example>
        <title>Setting one parameter with a connection resource</title>
        <programlisting role="php">
<![CDATA[
<?php
/* Database Connection Parameters */
$database = 'SAMPLE';
$hostname = 'localhost';
$port = 50000;
$protocol = 'TCPIP';
$username = 'db2inst1';
$password = 'ibmdb2';

/* Connection String */
$conn_string = "DRIVER={IBM DB2 ODBC DRIVER};DATABASE=$database;";
$conn_string .= "HOSTNAME=$hostname;PORT=$port;PROTOCOL=$protocol;";
$conn_string .= "UID=$username;PWD=$password;";

/* Obtain Connection Resource */
$conn = db2_connect($conn_string, '', '');

/* Create the associative options array with valid key-value pairs */
$options = array('autocommit' => DB2_AUTOCOMMIT_ON);

/* Call the function using the correct resource, options array, and type values */
$result = db2_set_option($conn, $options, 1);

/* Check if all options could be set correctly */
if($result)
{
  echo 'Options Set Successfully';
}
else
{
  echo 'Could Not Set Options';
}
?>
]]>
        </programlisting>
        &example.outputs;
        <screen><![CDATA[Options Set Successfully]]></screen>
      </example>

      <example>
        <title>Setting multiple parameters with a connection resource</title>
        <programlisting role="php">
<![CDATA[
<?php
/* Database Connection Parameters */
$database = 'SAMPLE';
$hostname = 'localhost';
$port = 50000;
$protocol = 'TCPIP';
$username = 'db2inst1';
$password = 'ibmdb2';

/* Connection String */
$conn_string = "DRIVER={IBM DB2 ODBC DRIVER};DATABASE=$database;";
$conn_string .= "HOSTNAME=$hostname;PORT=$port;PROTOCOL=$protocol;";
$conn_string .= "UID=$username;PWD=$password;";

/* Obtain Connection Resource */
$conn = db2_connect($conn_string, '', '');

/* Create the associative options array with valid key-value pairs */
$options = array('autocommit' => DB2_AUTOCOMMIT_OFF, 
                    'binmode' => DB2_PASSTHRU,
              'db2_attr_case' => DB2_CASE_UPPER,
                     'cursor' => DB2_SCROLLABLE);

/* Call the function using the correct resource, options array, and type values */
$result = db2_set_option($conn, $options, 1);

/* Check if all options could be set correctly */
if($result)
{
  echo 'Options Set Successfully';
}
else
{
  echo 'Could Not Set Options';
}
?>
]]>
        </programlisting>
        &example.outputs;
        <screen><![CDATA[Options Set Successfully]]></screen>
      </example>

      <!-- Behaves Incorrectly -->
      <example>
        <title>Setting multiple parameters with an invalid key</title>
        <programlisting role="php">
<![CDATA[
<?php
/* Database Connection Parameters */
$database = 'SAMPLE';
$hostname = 'localhost';
$port = 50000;
$protocol = 'TCPIP';
$username = 'db2inst1';
$password = 'ibmdb2';

/* Connection String */
$conn_string = "DRIVER={IBM DB2 ODBC DRIVER};DATABASE=$database;";
$conn_string .= "HOSTNAME=$hostname;PORT=$port;PROTOCOL=$protocol;";
$conn_string .= "UID=$username;PWD=$password;";

/* Obtain Connection Resource */
$conn = db2_connect($conn_string, '', '');

/* Create the associative options array with valid key-value pairs */
$options = array('autocommit' => DB2_AUTOCOMMIT_OFF, 
             'MY_INVALID_KEY' => DB2_PASSTHRU,
              'db2_attr_case' => DB2_CASE_UPPER,
                     'cursor' => DB2_SCROLLABLE);

/* Call the function using the correct resource, options array, and type values */
$result = db2_set_option($conn, $options, 1);

/* Check if all options could be set correctly */
if($result)
{
  echo 'Options Set Successfully';
}
else
{
  echo 'Could Not Set Options';
}
?>
]]>
        </programlisting>
        &example.outputs;
        <screen><![CDATA[Could Not Set Options]]></screen>
      </example>

      <!-- Behaves Incorrectly -->
      <example>
        <title>Setting multiple parameters with an invalid value</title>
        <programlisting role="php">
<![CDATA[
<?php
/* Database Connection Parameters */
$database = 'SAMPLE';
$hostname = 'localhost';
$port = 50000;
$protocol = 'TCPIP';
$username = 'db2inst1';
$password = 'ibmdb2';

/* Connection String */
$conn_string = "DRIVER={IBM DB2 ODBC DRIVER};DATABASE=$database;";
$conn_string .= "HOSTNAME=$hostname;PORT=$port;PROTOCOL=$protocol;";
$conn_string .= "UID=$username;PWD=$password;";

/* Obtain Connection Resource */
$conn = db2_connect($conn_string, '', '');

/* Create the associative options array with valid key-value pairs */
$options = array('autocommit' => DB2_AUTOCOMMIT_OFF, 
                    'binmode' => 'INVALID_VALUE',
              'db2_attr_case' => DB2_CASE_UPPER,
                     'cursor' => DB2_SCROLLABLE);

/* Call the function using the correct resource, options array, and type values */
$result = db2_set_option($conn, $options, 1);

/* Check if all options could be set correctly */
if($result)
{
  echo 'Options Set Successfully';
}
else
{
  echo 'Could Not Set Options';
}
?>
]]>
        </programlisting>
        &example.outputs;
        <screen><![CDATA[Could Not Set Options]]></screen>
      </example>

      <example>
        <title>Setting multiple parameters with a connection resource and the wrong type</title>
        <programlisting role="php">
<![CDATA[
<?php
/* Database Connection Parameters */
$database = 'SAMPLE';
$hostname = 'localhost';
$port = 50000;
$protocol = 'TCPIP';
$username = 'db2inst1';
$password = 'ibmdb2';

/* Connection String */
$conn_string = "DRIVER={IBM DB2 ODBC DRIVER};DATABASE=$database;";
$conn_string .= "HOSTNAME=$hostname;PORT=$port;PROTOCOL=$protocol;";
$conn_string .= "UID=$username;PWD=$password;";

/* Obtain Connection Resource */
$conn = db2_connect($conn_string, '', '');

/* Create the associative options array with valid key-value pairs */
$options = array('autocommit' => DB2_AUTOCOMMIT_OFF, 
                    'binmode' => DB2_PASSTHRU,
              'db2_attr_case' => DB2_CASE_UPPER,
                     'cursor' => DB2_SCROLLABLE);

/* Call the function using the correct resource, options array, and the wrong type value */
$result = db2_set_option($conn, $options, 2);

/* Check if all options could be set correctly */
if($result)
{
  echo 'Options Set Successfully';
}
else
{
  echo 'Could Not Set Options';
}
?>
]]>
        </programlisting>
        &example.outputs;
        <screen><![CDATA[Could Not Set Options]]></screen>
      </example>

      <example>
        <title>Setting multiple parameters with the wrong resource</title>
        <programlisting role="php">
<![CDATA[
<?php
/* Database Connection Parameters */
$database = 'SAMPLE';
$hostname = 'localhost';
$port = 50000;
$protocol = 'TCPIP';
$username = 'db2inst1';
$password = 'ibmdb2';

/* Connection String */
$conn_string = "DRIVER={IBM DB2 ODBC DRIVER};DATABASE=$database;";
$conn_string .= "HOSTNAME=$hostname;PORT=$port;PROTOCOL=$protocol;";
$conn_string .= "UID=$username;PWD=$password;";

/* Obtain Connection Resource */
$conn = db2_connect($conn_string, '', '');

/* Create the associative options array with valid key-value pairs */
$options = array('autocommit' => DB2_AUTOCOMMIT_OFF, 
                    'binmode' => DB2_PASSTHRU,
              'db2_attr_case' => DB2_CASE_UPPER,
                     'cursor' => DB2_SCROLLABLE);

$stmt = db2_prepare($conn, 'SELECT * FROM EMPLOYEE');

/* Call the function using the wrong resource, and the correct options array, and type values */
$result = db2_set_option($stmt, $options, 1);

/* Check if all options could be set correctly */
if($result)
{
  echo 'Options Set Successfully';
}
else
{
  echo 'Could Not Set Options';
}
?>
]]>
        </programlisting>
        &example.outputs;
        <screen><![CDATA[Could Not Set Options]]></screen>
      </example>

      <example>
        <title>Putting it all together</title>
        <programlisting role="php">
<![CDATA[
<?php
/* Database Connection Parameters */
$database = 'SAMPLE';
$hostname = 'localhost';
$port = 50000;
$protocol = 'TCPIP';
$username = 'db2inst1';
$password = 'ibmdb2';

/* Connection String */
$conn_string = "DRIVER={IBM DB2 ODBC DRIVER};DATABASE=$database;";
$conn_string .= "HOSTNAME=$hostname;PORT=$port;PROTOCOL=$protocol;";
$conn_string .= "UID=$username;PWD=$password;";

/* Obtain Connection Resource */
$conn = db2_connect($conn_string, '', '');

/* Create the associative options array with valid key-value pairs */
$options = array('db2_attr_case' => DB2_CASE_LOWER,
                        'cursor' => DB2_SCROLLABLE);

$stmt = db2_prepare($conn, 'SELECT * FROM EMPLOYEE WHERE EMPNO = ? OR EMPNO = ?');

/* Call the function using the correct resource, options array, and type values */
$option_result = db2_set_option($stmt, $options, 2);
$result = db2_execute($stmt, array('000130', '000140'));

/* Get Row 2 before Row 1 since Scrollable Cursor */
print_r(db2_fetch_assoc($stmt, 2));
print '<br /><br />';
print_r(db2_fetch_assoc($stmt, 1));

?>
]]>
        </programlisting>
        &example.outputs;
        <screen><![CDATA[Array
(
    [empno] => 000140
    [firstnme] => HEATHER
    [midinit] => A
    [lastname] => NICHOLLS
    [workdept] => C01
    [phoneno] => 1793
    [hiredate] => 1976-12-15
    [job] => ANALYST
    [edlevel] => 18
    [sex] => F
    [birthdate] => 1946-01-19
    [salary] => 28420.00
    [bonus] => 600.00
    [comm] => 2274.00
)

Array
(
    [empno] => 000130
    [firstnme] => DELORES
    [midinit] => M
    [lastname] => QUINTANA
    [workdept] => C01
    [phoneno] => 4578
    [hiredate] => 1971-07-28
    [job] => ANALYST
    [edlevel] => 16
    [sex] => F
    [birthdate] => 1925-09-15
    [salary] => 23800.00
    [bonus] => 500.00
    [comm] => 1904.00
)]]></screen>
      </example>
      <example>
        <title>i5/OS cursors are read-only</title>
        <programlisting role="php">
<![CDATA[
<?php
  $conn = db2_connect("", "", "", array("i5_lib"=>"nobody"));
  $stmt = db2_prepare($conn, 'select * from names where first = ?');
  $name = "first2";
  db2_bind_param($stmt, 1, "name", DB2_PARAM_IN);
  $options = array("i5_fetch_only"=>DB2_I5_FETCH_ON);
  db2_set_option($stmt,$options,0);
  if (db2_execute($stmt)) {
    while ($row = db2_fetch_array($stmt)) {
      echo "{$row[0]} {$row[1]}";
    }
  }
?>
]]>
        </programlisting>
        &example.outputs;
        <screen>
<![CDATA[
first2 last2
]]>
        </screen>
      </example>
    </para>
  </refsect1>
  <refsect1 role="seealso">
    &reftitle.seealso;
    <para>
      <simplelist>
        <member><function>db2_connect</function></member>
        <member><function>db2_pconnect</function></member>
        <member><function>db2_exec</function></member>
        <member><function>db2_prepare</function></member>
        <member><function>db2_cursor_type</function></member>
      </simplelist>
    </para>
  </refsect1>
</refentry>

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