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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 297028 $ -->
<refentry xml:id="function.mysql-list-fields" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>mysql_list_fields</refname>
<refpurpose>List MySQL table fields</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>resource</type><methodname>mysql_list_fields</methodname>
<methodparam><type>string</type><parameter>database_name</parameter></methodparam>
<methodparam><type>string</type><parameter>table_name</parameter></methodparam>
<methodparam choice="opt"><type>resource</type><parameter>link_identifier</parameter></methodparam>
</methodsynopsis>
<para>
Retrieves information about the given table name.
</para>
<para>
This function is deprecated. It is preferable to use
<function>mysql_query</function> to issue a SQL <literal>SHOW COLUMNS FROM
table [LIKE 'name']</literal> statement instead.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>database_name</parameter></term>
<listitem>
<para>
The name of the database that's being queried.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>table_name</parameter></term>
<listitem>
<para>
The name of the table that's being queried.
</para>
</listitem>
</varlistentry>
&mysql.linkid.description;
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
A result pointer <type>resource</type> on success, or &false; on
failure.
</para>
<para>
The returned result can be used with <function>mysql_field_flags</function>,
<function>mysql_field_len</function>,
<function>mysql_field_name</function>&listendand;
<function>mysql_field_type</function>.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>Alternate to deprecated <function>mysql_list_fields</function></title>
<programlisting role="php">
<![CDATA[
<?php
$result = mysql_query("SHOW COLUMNS FROM sometable");
if (!$result) {
echo 'Could not run query: ' . mysql_error();
exit;
}
if (mysql_num_rows($result) > 0) {
while ($row = mysql_fetch_assoc($result)) {
print_r($row);
}
}
?>
]]>
</programlisting>
&example.outputs.similar;
<screen>
<![CDATA[
Array
(
[Field] => id
[Type] => int(7)
[Null] =>
[Key] => PRI
[Default] =>
[Extra] => auto_increment
)
Array
(
[Field] => email
[Type] => varchar(100)
[Null] =>
[Key] =>
[Default] =>
[Extra] =>
)
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="notes">
&reftitle.notes;
<note>
<para>
&info.deprecated.alias;
<function>mysql_listfields</function>
</para>
</note>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>mysql_field_flags</function></member>
<member><function>mysql_info</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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