php-doc-en/reference/maxdb/functions/maxdb-stmt-bind-result.xml

<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.4 $ -->
  <refentry id="function.maxdb-stmt-bind-result">
   <refnamediv>
    <refname>maxdb_stmt_bind_result</refname>
    <refname>stmt->bind_result</refname>
    <refpurpose>Binds variables to a prepared statement for result storage</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <para>Procedural style:</para>
     <methodsynopsis>
      <type>bool</type><methodname>maxdb_stmt_bind_result</methodname>
      <methodparam><type>resource</type><parameter>stmt</parameter></methodparam>
      <methodparam><type>mixed</type><parameter role="reference">var1</parameter></methodparam>
      <methodparam choice="opt"><type>mixed</type><parameter role="reference">...</parameter></methodparam>
     </methodsynopsis>
     <para>Object oriented style (method):</para>
     <classsynopsis>
      <ooclass><classname>stmt</classname></ooclass>
      <methodsynopsis>
       <type>bool</type>
       <methodname>bind_result</methodname>
       <methodparam><type>mixed</type><parameter role="reference">var1</parameter></methodparam>
       <methodparam choice="opt"><type>mixed</type><parameter role="reference">...</parameter></methodparam>
      </methodsynopsis>
     </classsynopsis>
     <para>
      <function>maxdb_stmt_bind_result</function> is used to associate (bind) columns in the result 
      set to variables. When <function>maxdb_stmt_fetch</function> is called to fetch data, the MaxDB
      client/server protocol places the data for the bound columns into the specified variables
      <parameter>var1, ...</parameter>.
     </para>
     <note>
      <para>
       Note that all columns must be bound prior to calling <function>maxdb_stmt_fetch</function>.
       Depending on column types bound variables can silently change to the corresponding PHP type.
      </para>
      <para>
       A column can be bound or rebound at any time, even after a result set has been partially retrieved.
       The new binding takes effect the next time <function>maxdb_stmt_fetch</function> is called. 
      </para>
     </note>
   </refsect1>
   <refsect1>
    <title>Return values</title>
    <para>
     &return.success;
    </para>
   </refsect1>
   <refsect1>
    <title>See also</title>
    <para>
     <function>maxdb_stmt_bind_param</function>,
     <function>maxdb_stmt_execute</function>,
     <function>maxdb_stmt_fetch</function>,
     <function>maxdb_prepare</function>,
     <function>maxdb_stmt_prepare</function>,
     <function>maxdb_stmt_init</function>,
     <function>maxdb_stmt_errno</function>,
     <function>maxdb_stmt_error</function>
    </para>
   </refsect1>
   <refsect1>
    <title>Example</title>
    <example>
     <title>Object oriented style</title>
     <programlisting role="php">
<![CDATA[
<?php
$maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");

if (maxdb_connect_errno()) {
   printf("Connect failed: %s\n", maxdb_connect_error());
   exit();
}

/* prepare statement */
if ($stmt = $maxdb->prepare("SELECT zip, name FROM hotel.city ORDER BY name")) {
   $stmt->execute();

   /* bind variables to prepared statement */
   $stmt->bind_result($col1, $col2);

   /* fetch values */
   while ($stmt->fetch()) {
       printf("%s %s\n", $col1, $col2);
   }

   /* close statement */
   $stmt->close();
}
/* close connection */
$maxdb->close();

?>
]]>
    </programlisting>
    </example>
    <example>
     <title>Procedural style</title>
     <programlisting role="php">
<![CDATA[
<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");

/* check connection */
if (!$link) {
   printf("Connect failed: %s\n", maxdb_connect_error());
   exit();
}

/* prepare statement */
if ($stmt = maxdb_prepare($link, "SELECT zip, name FROM hotel.city ORDER BY name")) {
   maxdb_stmt_execute($stmt);

   /* bind variables to prepared statement */
   maxdb_stmt_bind_result($stmt, $col1, $col2);

   /* fetch values */
   while (maxdb_stmt_fetch($stmt)) {
       printf("%s %s\n", $col1, $col2);
   }

   /* close statement */
   maxdb_stmt_close($stmt);
}

/* close connection */
maxdb_close($link);
?>
]]>
     </programlisting>
    </example>
    <para>
     The above examples would produce the following output:
    </para>
    <screen>
<![CDATA[
12203 Albany
60601 Chicago
60615 Chicago
45211 Cincinnati
33575 Clearwater
75243 Dallas
32018 Daytona Beach
33441 Deerfield Beach
48226 Detroit
90029 Hollywood
92714 Irvine
90804 Long Beach
11788 Long Island
90018 Los Angeles
70112 New Orleans
10019 New York
10580 New York
92262 Palm Springs
97213 Portland
60018 Rosemont
95054 Santa Clara
20903 Silver Spring
20005 Washington
20019 Washington
20037 Washington
]]>
    </screen>
   </refsect1>
  </refentry>

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