php-doc-en/reference/mysqli/functions/mysqli-stmt-fetch.xml
2004-05-19 17:38:07 +00:00

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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.2 $ -->
<refentry id="function.mysqli-stmt-fetch">
<refnamediv>
<refname>mysqli_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>mixed</type><methodname>mysqli_stmt_fetch</methodname>
<methodparam><type>object</type><parameter>stmt</parameter></methodparam>
</methodsynopsis>
<para>Object oriented style (method):</para>
<classsynopsis>
<ooclass><classname>stmt</classname></ooclass>
<methodsynopsis>
<type>mixed</type>
<methodname>fetch</methodname>
<void />
</methodsynopsis>
</classsynopsis>
<para>
<function>mysqli_stmt_fetch</function> returns row data using the variables bound by <function>mysqli_stmt_bind_result</function>.
</para>
<note>
<para>
Note that all columns must be bound by the application before calling <function>mysqli_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>mysqli_prepare</function>,
<function>mysqli_stmt_errno</function>,
<function>mysqli_stmt_error</function>,
<function>mysqli_stmt_bind_result</function>
</para>
</refsect1>
<refsect1>
<title>Example</title>
<example>
<title>Object oriented style</title>
<programlisting role="php">
<![CDATA[
<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$query = "SELECT Name, CountryCode FROM City ORDER by ID DESC LIMIT 150,5";
if ($stmt = $mysqli->prepare($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 */
$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 (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$query = "SELECT Name, CountryCode FROM City ORDER by ID DESC LIMIT 150,5";
if ($stmt = mysqli_prepare($link, $query)) {
/* execute statement */
mysqli_stmt_execute($stmt);
/* bind result variables */
mysqli_stmt_bind_result($stmt, $name, $code);
/* fetch values */
while (mysqli_stmt_fetch($stmt)) {
printf ("%s (%s)\n", $name, $code);
}
/* close statement */
mysqli_stmt_close($stmt);
}
/* close connection */
mysqli_close($link);
?>
]]>
</programlisting>
</example>
<para>
The above examples would produce the following output:
</para>
<screen>
<![CDATA[
Rockford (USA)
Tallahassee (USA)
Salinas (USA)
Santa Clarita (USA)
Springfield (USA)
]]>
</screen>
</refsect1>
</refentry>
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