PHP. Руководство по PHP. 2005

maxdb_insert_id

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maxdb_insert_id

(PECL)maxdb_insert_id

(no version information, might be only in CVS)maxdb->insert_id -- Returns the auto generated id used in the last query

Description

Procedural style:mixed maxdb_insert_id (resource link)

Object oriented style (property):class maxdb {

mixed 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.

Возвращаемые значения

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.
Замечание:
If the number is greater than maximal int value, maxdb_insert_id()
will return a string.

Example

Пример 1. Object oriented style


<?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();
?>

Пример 2. Procedural style


<?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);
?>

The above examples would produce the following output:

New Record has id 1.

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