PHP Manual: Returns the auto generated ID of the last insert query that successfully executed on this connection

Description

string db2_last_insert_id ( resource $resource )

Returns the auto generated ID of the last insert query that successfully executed on this connection.

The result of this function is not affected by any of the following:

A single row INSERT statement with a VALUES clause for a table without an identity column.
A multiple row INSERT statement with a VALUES clause.
An INSERT statement with a fullselect.
A ROLLBACK TO SAVEPOINT statement.

Parameters

resource: A valid connection resource as returned from db2_connect or db2_pconnect. The value of this parameter cannot be a statement resource or result set resource.

Return Values

Returns the auto generated ID of last insert query that successfully executed on this connection.

Examples

Example #1 A db2_last_insert_id example

The following example shows how to return the auto generated ID of last insert query that successfully executed on this connection.


<?php

$database = "SAMPLE";
$user = "db2inst1";
$password = "ibmdb2";

$conn = db2_connect($database, $user, $password);
if($conn) {
    $createTable = "CREATE TABLE lastInsertID 
      (id integer GENERATED BY DEFAULT AS IDENTITY, name varchar(20))";
    $insertTable = "INSERT INTO lastInsertID (name) VALUES ('Temp Name')";

    $stmt = @db2_exec($conn, $createTable);

    /* Checking for single row inserted. */
    $stmt = db2_exec($conn, $insertTable);
    $ret =  db2_last_insert_id($conn);
    if($ret) {
        echo "Last Insert ID is : " . $ret . "\n";
    } else {
        echo "No Last insert ID.\n";
    }
    
    db2_close($conn);
}
else {
    echo "Connection failed.";
}
?>

The above example will output:

Last Insert ID is : 1