mirror of
https://github.com/sigmasternchen/php-doc-en
synced 2025-03-19 18:38:55 +00:00
39e039f00c
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@106520 c90b9560-bf6c-de11-be94-00142212c4b1
93 lines
3 KiB
XML
93 lines
3 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
|
|
<!-- $Revision: 1.6 $ -->
|
|
<!-- splitted from ./en/functions/mysql.xml, last change in rev 1.2 -->
|
|
<refentry id="function.mysql-insert-id">
|
|
<refnamediv>
|
|
<refname>mysql_insert_id</refname>
|
|
<refpurpose>
|
|
Get the ID generated from the previous INSERT operation
|
|
</refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>int</type><methodname>mysql_insert_id</methodname>
|
|
<methodparam choice="opt"><type>resource</type><parameter>
|
|
link_identifier
|
|
</parameter></methodparam>
|
|
</methodsynopsis>
|
|
<para>
|
|
<function>mysql_insert_id</function> returns the ID generated for
|
|
an AUTO_INCREMENT column by the previous INSERT query using the
|
|
given <parameter>link_identifier</parameter>. If
|
|
<parameter>link_identifier</parameter> isn't specified, the last
|
|
opened link is assumed.
|
|
</para>
|
|
<para>
|
|
<function>mysql_insert_id</function> returns 0 if the previous
|
|
query does not generate an AUTO_INCREMENT value. If you need to
|
|
save the value for later, be sure to call
|
|
<function>mysql_insert_id</function> immediately after the
|
|
query that generates the value.
|
|
</para>
|
|
<note>
|
|
<para>
|
|
The value of the MySQL SQL function
|
|
<literal>LAST_INSERT_ID()</literal> always contains the most
|
|
recently generated AUTO_INCREMENT value, and is not reset
|
|
between queries.
|
|
</para>
|
|
</note>
|
|
<warning>
|
|
<para>
|
|
<function>mysql_insert_id</function> converts the return type of
|
|
the native MySQL C API function
|
|
<literal>mysql_insert_id()</literal> to a type of
|
|
<literal>long</literal> (named <type>int</type> in PHP).
|
|
If your AUTO_INCREMENT column has a column type of BIGINT,
|
|
the value returned by <function>mysql_insert_id</function>
|
|
will be incorrect. Instead, use the internal MySQL SQL function
|
|
<literal>LAST_INSERT_ID()</literal> in an SQL query.
|
|
</para>
|
|
</warning>
|
|
<example>
|
|
<title>mysql_insert_id Example</title>
|
|
<programlisting role="php">
|
|
<![CDATA[
|
|
<?php
|
|
mysql_connect("localhost", "mysql_user", "mysql_password") or
|
|
die("Could not connect: " . mysql_error());
|
|
mysql_select_db("mydb");
|
|
|
|
mysql_query("INSERT INTO mytable (product) values ('kossu')");
|
|
printf ("Last inserted record has id %d\n", mysql_insert_id());
|
|
?>
|
|
]]>
|
|
</programlisting>
|
|
</example>
|
|
<para>
|
|
See also: <function>mysql_query</function>.
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<!-- Keep this comment at the end of the file
|
|
Local variables:
|
|
mode: sgml
|
|
sgml-omittag:t
|
|
sgml-shorttag:t
|
|
sgml-minimize-attributes:nil
|
|
sgml-always-quote-attributes:t
|
|
sgml-indent-step:1
|
|
sgml-indent-data:t
|
|
indent-tabs-mode:nil
|
|
sgml-parent-document:nil
|
|
sgml-default-dtd-file:"../../../../manual.ced"
|
|
sgml-exposed-tags:nil
|
|
sgml-local-catalogs:nil
|
|
sgml-local-ecat-files:nil
|
|
End:
|
|
vim600: syn=xml fen fdm=syntax fdl=2 si
|
|
vim: et tw=78 syn=sgml
|
|
vi: ts=1 sw=1
|
|
-->
|