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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.8 $ -->
<refentry id="function.mysqli-stmt-bind-result">
<refnamediv>
<refname>mysqli_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>mysqli_stmt_bind_result</methodname>
<methodparam><type>mysqli_stmt</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>mysqli_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>mysqli_stmt_bind_result</function> is used to associate (bind) columns in the result
set to variables. When <function>mysqli_stmt_fetch</function> is called to fetch data, the MySQL
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 after <function>mysqli_stmt_execute</function> and prior to calling
<function>mysqli_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>mysqli_stmt_fetch</function> is called.
</para>
</note>
</refsect1>
<refsect1>
&reftitle.returnvalues;
<para>
&return.success;
</para>
</refsect1>
<refsect1>
&reftitle.seealso;
<para>
<function>mysqli_stmt_bind_param</function>,
<function>mysqli_stmt_execute</function>,
<function>mysqli_stmt_fetch</function>,
<function>mysqli_prepare</function>,
<function>mysqli_stmt_prepare</function>,
<function>mysqli_stmt_init</function>,
<function>mysqli_stmt_errno</function>&listendand;
<function>mysqli_stmt_error</function>.
</para>
</refsect1>
<refsect1>
&reftitle.examples;
<example>
<title>Object oriented style</title>
<programlisting role="php">
<![CDATA[
<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
/* prepare statement */
if ($stmt = $mysqli->prepare("SELECT Code, Name FROM Country ORDER BY Name LIMIT 5")) {
$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 */
$mysqli->close();
?>
]]>
</programlisting>
</example>
<example>
<title>Procedural style</title>
<programlisting role="php">
<![CDATA[
<?php
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */
if (!$link) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
/* prepare statement */
if ($stmt = mysqli_prepare($link, "SELECT Code, Name FROM Country ORDER BY Name LIMIT 5")) {
mysqli_stmt_execute($stmt);
/* bind variables to prepared statement */
mysqli_stmt_bind_result($stmt, $col1, $col2);
/* fetch values */
while (mysqli_stmt_fetch($stmt)) {
printf("%s %s\n", $col1, $col2);
}
/* close statement */
mysqli_stmt_close($stmt);
}
/* close connection */
mysqli_close($link);
?>
]]>
</programlisting>
</example>
&example.outputs;
<screen>
<![CDATA[
AFG Afghanistan
ALB Albania
DZA Algeria
ASM American Samoa
AND Andorra
]]>
</screen>
</refsect1>
</refentry>
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sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
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