maxdb_insert_id

maxdb::insert_id

Returns the auto generated id used in the last query

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`mixed` `maxdb_insert_id` `resource` `link`

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`mixed` `maxdb->insert_id`

The `maxdb_insert_id` function returns the ID generated by a query on a table with a column having the DEFAULT SERIAL attribute. If the last query wasn't an INSERT or UPDATE statement or if the modified table does not have a column with the DEFAULT SERIAL attribute, this function will return zero.

&reftitle.returnvalues;

The value of the `DEFAULT SERIAL` field that was updated by the previous query. Returns zero if there was no previous query on the connection or if the query did not update an `DEFAULT_SERIAL` value.

If the number is greater than maximal int value, `maxdb_insert_id` will return a string.

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### &style.oop;

    <?php
    $maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");

    /* check connection */
    if (maxdb_connect_errno()) {
       printf("Connect failed: %s\n", maxdb_connect_error());
       exit();
    }

    maxdb_report (MAXDB_REPORT_OFF);
    $maxdb->query("DROP TABLE mycity");
    maxdb_report (MAXDB_REPORT_ERROR);

    $maxdb->query("CREATE TABLE mycity LIKE hotel.city");
    $maxdb->query("ALTER TABLE mycity ADD id FIXED(11) DEFAULT SERIAL");

    $query = "INSERT INTO mycity (zip,name,state) VALUES ('12203','Albany' ,'NY')";
    $maxdb->query($query);

    printf ("New Record has id %d.\n", $maxdb->insert_id);

    /* drop table */
    $maxdb->query("DROP TABLE mycity");

    /* close connection */
    $maxdb->close();
    ?>

### &style.procedural;

    <?php
    $link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");

    /* check connection */
    if (maxdb_connect_errno()) {
       printf("Connect failed: %s\n", maxdb_connect_error());
       exit();
    }

    maxdb_report (MAXDB_REPORT_OFF);
    maxdb_query($link,"DROP TABLE mycity");
    maxdb_report (MAXDB_REPORT_ERROR);

    maxdb_query($link, "CREATE TABLE mycity LIKE hotel.city");
    maxdb_query($link, "ALTER TABLE mycity ADD id FIXED(11) DEFAULT SERIAL");

    $query = "INSERT INTO mycity (zip,name,state) VALUES ('12203','Albany' ,'NY')";
    maxdb_query($link, $query);

    printf ("New Record has id %d.\n", maxdb_insert_id($link));

    /* drop table */
    maxdb_query($link, "DROP TABLE mycity");

    /* close connection */
    maxdb_close($link);
    ?>

&example.outputs.similar;

    New Record has id 1.