php-doc-en/reference/ibm_db2/functions/db2-execute.xml

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<refentry id="function.db2-execute">
 <refnamediv>
  <refname>db2_execute</refname>
  <refpurpose>
   Executes a prepared SQL statement
  </refpurpose>
 </refnamediv>
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>bool</type><methodname>db2_execute</methodname>
   <methodparam><type>resource</type><parameter>stmt</parameter></methodparam>
   <methodparam choice="opt"><type>array</type><parameter>parameters</parameter></methodparam>
  </methodsynopsis>


  <para>
   <function>db2_execute</function> executes an SQL statement that was
   prepared by <function>db2_prepare</function>.
  </para>
  <para>
   If the SQL statement returns a result set, for example, a SELECT statement
   or a CALL to a stored procedure that returns one or more result sets, you
   can retrieve a row as an array from the <literal>stmt</literal> resource
   using <function>db2_fetch_assoc</function>,
   <function>db2_fetch_both</function>, or
   <function>db2_fetch_array</function>. Alternatively, you can use
   <function>db2_fetch_row</function> to move the result set pointer to the
   next row and fetch a column at a time from that row with
   <function>db2_result</function>.
  </para>
  <para>
   Refer to <function>db2_prepare</function> for a brief discussion of the
   advantages of using <function>db2_prepare</function> and
   <function>db2_execute</function> rather than <function>db2_exec</function>.
  </para>

 </refsect1>
 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>stmt</parameter></term>
     <listitem>
      <para>
       A prepared statement returned from <function>db2_prepare</function>.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>parameters</parameter></term>
     <listitem>
      <para>
       An array of input parameters matching any parameter markers contained
       in the prepared statement.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>
 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   &return.success;
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title>Preparing and executing an SQL statement with parameter markers</title>
    <para>
     The following example prepares an INSERT statement that accepts four
     parameter markers, then iterates over an array of arrays containing the
     input values to be passed to <function>db2_execute</function>.
    </para>
    <programlisting role="php">
<![CDATA[
<?php
$pet = array(0, 'cat', 'Pook', 3.2);

$insert = 'INSERT INTO animals (id, breed, name, weight)
    VALUES (?, ?, ?, ?)';

$stmt = db2_prepare($conn, $insert);
if ($stmt) {
    $result = db2_execute($stmt, $pet);
    if ($result) {
        print "Successfully added new pet.";
    }
}
?>
]]>
    </programlisting>
    &example.outputs;
    <screen>
<![CDATA[
Successfully added new pet.
]]>
    </screen>
   </example>
   <example>
    <title>Calling a stored procedure with an OUT parameter</title>
    <para>
     The following example prepares a CALL statement that accepts one 
     parameter marker representing an OUT parameter, binds the PHP variable
     <literal>$my_pets</literal> to the parameter using
     <function>db2_bind_param</function>, then issues
     <function>db2_execute</function> to execute the CALL statement. After the
     CALL to the stored procedure has been made, the value of
     <literal>$num_pets</literal> changes to reflect the value returned by the
     stored procedure for that OUT parameter.
    </para>
    <programlisting role="php">
<![CDATA[
<?php
$num_pets = 0;
$res = db2_prepare($conn, "CALL count_my_pets(?)");
$rc = db2_bind_param($res, 1, "num_pets", DB2_PARAM_OUT);
$rc = db2_execute($res);
print "I have $num_pets pets!";
?>
]]>
    </programlisting>
    &example.outputs;
    <screen>
<![CDATA[
I have 7 pets!
]]>
    </screen>
   </example>


  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>db2_exec</function></member>
    <member><function>db2_fetch_array</function></member>
    <member><function>db2_fetch_assoc</function></member>
    <member><function>db2_fetch_both</function></member>
    <member><function>db2_fetch_row</function></member>
    <member><function>db2_prepare</function></member>
    <member><function>db2_result</function></member>
   </simplelist>
  </para>
 </refsect1>


</refentry>

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