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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 299161 $ -->
<refentry xml:id="mysqli-result.field-count" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>mysqli_result->field_count</refname>
<refname>mysqli_num_fields</refname>
<refpurpose>Get the number of fields in a result</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<para>&style.oop;</para>
<classsynopsis>
<ooclass><classname>mysqli_result</classname></ooclass>
<fieldsynopsis><type>int</type><varname>field_count</varname></fieldsynopsis>
</classsynopsis>
<para>&style.procedural;</para>
<methodsynopsis>
<type>int</type><methodname>mysqli_num_fields</methodname>
<methodparam><type>mysqli_result</type><parameter>result</parameter></methodparam>
</methodsynopsis>
<para>
Returns the number of fields from specified result set.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
&mysqli.result.description;
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
The number of fields from a result set.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<example>
<para>&style.oop;</para>
<programlisting role="php">
<![CDATA[
<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
if ($result = $mysqli->query("SELECT * FROM City ORDER BY ID LIMIT 1")) {
/* determine number of fields in result set */
$field_cnt = $result->field_count;
printf("Result set has %d fields.\n", $field_cnt);
/* close result set */
$result->close();
}
/* close connection */
$mysqli->close();
?>
]]>
</programlisting>
<para>&style.procedural;</para>
<programlisting role="php">
<![CDATA[
<?php
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
if ($result = mysqli_query($link, "SELECT * FROM City ORDER BY ID LIMIT 1")) {
/* determine number of fields in result set */
$field_cnt = mysqli_num_fields($result);
printf("Result set has %d fields.\n", $field_cnt);
/* close result set */
mysqli_free_result($result);
}
/* close connection */
mysqli_close($link);
?>
]]>
</programlisting>
&examples.outputs;
<screen>
<![CDATA[
Result set has 5 fields.
]]>
</screen>
</example>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>mysqli_fetch_field</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
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indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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-->
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