File: PDOStatement-fetchSingle.xml

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<?xml version='1.0' encoding='iso-8859-1'?>
<!-- $Revision: 1.4 $ -->
<!-- Generated by xml_proto.php v2.1. Found in /scripts directory of phpdoc. -->
  <refentry id="function.PDOStatement-fetchSingle">
   <refnamediv>
    <refname>PDOStatement::fetchSingle</refname>
    <refpurpose>
     Returns the first column in the next row of a result set
    </refpurpose>
   </refnamediv>

   <refsect1 role="description">
    &reftitle.description;
    <methodsynopsis>
     <type>string</type><methodname>PDOStatement::fetchSingle</methodname>
     <void/>
    </methodsynopsis>

     &warn.experimental.func;
   </refsect1>

   <refsect1 role="returnvalues">
    &reftitle.returnvalues;
    <para>
     <function>PDOStatement::fetchSingle</function> returns the first column
     in the next row of a result set as a <literal>string</literal> value.
    </para>
    <warning>
     <para>
      There is no way to return the second or subsequent columns from a row
      if you use this method to retrieve data.
     </para>
    </warning>
   </refsect1>


   <refsect1 role="examples">
    &reftitle.examples;
    <para>
     <example><title>Return first column of the next row</title>
      <programlisting role="php">
<![CDATA[
<?php
$sth = $dbh->prepare("SELECT name, colour FROM fruit");
$sth->execute();

/* Fetch the first column from the next row in the result set */
print("Fetch the first column from the next row in the result set:\n");
$result = $sth->fetchSingle();
print("$result\n");

$result = $sth->fetchSingle();
print("$result\n");
?>
]]>
      </programlisting>
      &example.outputs;
      <screen>
<![CDATA[
Fetch the first column from the next row in the result set:
lemon
orange
]]>
      </screen>
     </example>
    </para>
   </refsect1>

   <refsect1 role="seealso">
    &reftitle.seealso;
    <para>
     <simplelist>
      <member><function>PDO::query</function></member>
      <member><function>PDOStatement::fetch</function></member>
      <member><function>PDOStatement::fetchAll</function></member>
      <member><function>PDOStatement::prepare</function></member>
      <member><function>PDOStatement::setFetchMode</function></member>
     </simplelist>
    </para>
   </refsect1>
  </refentry>

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