php-doc-en/reference/maxdb/functions/maxdb-stmt-fetch.xml

<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.3 $ -->
  <refentry id="function.maxdb-stmt-fetch">
   <refnamediv>
    <refname>maxdb_stmt_fetch</refname>
    <refname>stmt->fetch</refname>
    <refpurpose>
     Fetch results from a prepared statement into the bound variables
    </refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
    <para>Procedural style:</para>
    <methodsynopsis>
     <type>bool</type><methodname>maxdb_stmt_fetch</methodname>
     <methodparam><type>resource</type><parameter>stmt</parameter></methodparam>
    </methodsynopsis>
    <para>Object oriented style (method):</para>
    <classsynopsis>
     <ooclass><classname>stmt</classname></ooclass>
     <methodsynopsis>
      <type>bool</type><methodname>fetch</methodname>
      <void />
     </methodsynopsis>
    </classsynopsis>
    <para>
     <function>maxdb_stmt_fetch</function> returns row data using the variables bound by <function>maxdb_stmt_bind_result</function>.
    </para>
    <note>
     <para>
      Note that all columns must be bound by the application before calling <function>maxdb_stmt_fetch</function>. 
     </para>
    </note>
   </refsect1>
   <refsect1>
    <title>Return values</title>
    <table>
     <title>Return values</title>
     <tgroup cols='2'>
      <thead>
       <row>
        <entry>Value</entry>
        <entry>Description</entry>
       </row>
      </thead>
      <tbody>
       <row>
        <entry>&true;</entry>
        <entry>Success. Data has been fetched</entry>
       </row>
       <row>
        <entry>&false;</entry>
        <entry>Error occured</entry>
       </row>
       <row>
        <entry><literal>&null;</literal></entry>
        <entry>No more rows/data exists</entry>
       </row>
      </tbody>
     </tgroup>
    </table>
   </refsect1>
   <refsect1>
    <title>See also</title>
    <para>
     <function>maxdb_prepare</function>,
     <function>maxdb_stmt_errno</function>,
     <function>maxdb_stmt_error</function>,
     <function>maxdb_stmt_bind_result</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");

/* check connection */
if (maxdb_connect_errno()) {
   printf("Connect failed: %s\n", maxdb_connect_error());
   exit();
}
 
$query = "SELECT zip, name FROM hotel.city ORDER by name";

if ($stmt = $maxdb->prepare($query)) {

   /* execute statement */
   $stmt->execute();

   /* bind result variables */
   $stmt->bind_result($name, $code);

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

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

$query = "SELECT zip, name FROM hotel.city ORDER by name";

if ($stmt = maxdb_prepare($link, $query)) {

   /* execute statement */
   maxdb_stmt_execute($stmt);

   /* bind result variables */
   maxdb_stmt_bind_result($stmt, $name, $code);

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

   /* 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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