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                                mysql_insert_id

   (PHP 3, PHP 4 )
   mysql_insert_id --  Get the ID generated from the previous INSERT
   operation

Description

   int mysql_insert_id ( [resource link_identifier])

   mysql_insert_id() returns the ID generated for an AUTO_INCREMENT
   column by the previous INSERT query using the given link_identifier.
   If link_identifier isn't specified, the last opened link is assumed.

   mysql_insert_id() 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 mysql_insert_id() immediately after the query that generates
   the value.

     Note: The value of the MySQL SQL function LAST_INSERT_ID() always
     contains the most recently generated AUTO_INCREMENT value, and is
     not reset between queries.

   Warning

   mysql_insert_id() converts the return type of the native MySQL C API
   function mysql_insert_id() to a type of long (named int in PHP). If
   your AUTO_INCREMENT column has a column type of BIGINT, the value
   returned by mysql_insert_id() will be incorrect. Instead, use the
   internal MySQL SQL function LAST_INSERT_ID() in an SQL query.

   Example 1. mysql_insert_id() example
   <?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());
   ?>

   See also mysql_query().
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