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If you are new to PHP or just need to refresh your skills, this is the place to start. This series of tutorials will give you the basic knowledge you will need to create a simple PHP website.

PHP is a reflective programming language originally designed for producing dynamic web pages.[1] PHP is used mainly in server-side scripting, but can be used from a command line interface or in standalone graphical applications. Textual User Interfaces can also be created using ncurses.

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mysql_insert_id

(PHP 3, PHP 4, PHP 5)

mysql_insert_id -- Get the ID generated from the previous INSERT operation

Description

int mysql_insert_id ( [resource link_identifier] )

Retrieves the ID generated for an AUTO_INCREMENT column by the previous INSERT query.

Parameters

link_identifier

The MySQL connection. If the link identifier is not specified, the last link opened by mysql_connect() is assumed. If no such link is found, it will try to create one as if mysql_connect() was called with no arguments. If by chance no connection is found or established, an E_WARNING level warning is generated.

Return Values

The ID generated for an AUTO_INCREMENT column by the previous INSERT query on success, 0 if the previous query does not generate an AUTO_INCREMENT value, or FALSE if no MySQL connection was established.

Examples

Example 1. mysql_insert_id() example

<?php
$link = mysql_connect('localhost', 'mysql_user', 'mysql_password');
if (!$link) {
    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());
?>

Notes

Caution

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.

Note: Because mysql_insert_id() acts on the last performed query, 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.

See Also

mysql_query()
mysql_info()

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ref.pdo-mysql | ref.pdo-mysql.connection | ref.mysqli | ref.mysql | function.mysqli-warning-count | function.mysqli-use-result | function.mysqli-thread-safe | function.mysqli-thread-id | function.mysqli-store-result | function.mysqli-stmt-store-result | function.mysqli-stmt-sqlstate | function.mysqli-stmt-send-long-data | function.mysqli-stmt-result-metadata | function.mysqli-stmt-reset | function.mysqli-stmt-prepare | function.mysqli-stmt-param-count | function.mysqli-stmt-num-rows | function.mysqli-stmt-insert-id | function.mysqli-stmt-init | function.mysqli-stmt-get-warnings | function.mysqli-stmt-free-result | function.mysqli-stmt-field-count | function.mysqli-stmt-fetch | function.mysqli-stmt-execute | function.mysqli-stmt-error | function.mysqli-stmt-errno | function.mysqli-stmt-data-seek | function.mysqli-stmt-close | function.mysqli-stmt-bind-result | function.mysqli-stmt-bind-param | function.mysqli-stmt-attr-set | function.mysqli-stmt-attr-get | function.mysqli-stmt-affected-rows | function.mysqli-stat | function.mysqli-ssl-set | function.mysqli-sqlstate | function.mysqli-slave-query | function.mysqli-set-opt | function.mysqli-set-local-infile-handler | function.mysqli-set-local-infile-default | function.mysqli-set-charset | function.mysqli-server-init | function.mysqli-server-end | function.mysqli-send-query | function.mysqli-send-long-data | function.mysqli-select-db | function.mysqli-rpl-query-type | function.mysqli-rpl-probe | function.mysqli-rpl-parse-enabled | function.mysqli-rollback | function.mysqli-report | function.mysqli-real-query | function.mysqli-real-escape-string | function.mysqli-real-connect | function.mysqli-query | function.mysqli-prepare | function.mysqli-ping | function.mysqli-param-count | function.mysqli-options | function.mysqli-num-rows | function.mysqli-num-fields | function.mysqli-next-result | function.mysqli-multi-query | function.mysqli-more-results | function.mysqli-master-query | function.mysqli-kill | function.mysqli-insert-id | function.mysqli-init | function.mysqli-info | function.mysqli-get-warnings | function.mysqli-get-server-version | function.mysqli-get-server-info | function.mysqli-get-proto-info | function.mysqli-get-metadata | function.mysqli-get-host-info | function.mysqli-get-client-version | function.mysqli-get-client-info | function.mysqli-get-charset | function.mysqli-free-result | function.mysqli-field-tell | function.mysqli-field-seek | function.mysqli-field-count | function.mysqli-fetch | function.mysqli-fetch-row | function.mysqli-fetch-object | function.mysqli-fetch-lengths | function.mysqli-fetch-fields | function.mysqli-fetch-field | function.mysqli-fetch-field-direct | function.mysqli-fetch-assoc | function.mysqli-fetch-array | function.mysqli-execute | function.mysqli-escape-string | function.mysqli-error | function.mysqli-errno | function.mysqli-enable-rpl-parse | function.mysqli-enable-reads-from-master | function.mysqli-embedded-server-start | function.mysqli-embedded-server-end | function.mysqli-dump-debug-info | function.mysqli-disable-rpl-parse | function.mysqli-disable-reads-from-master | function.mysqli-debug | function.mysqli-data-seek | function.mysqli-connect | function.mysqli-connect-error | function.mysqli-connect-errno | function.mysqli-commit | function.mysqli-close | function.mysqli-client-encoding | function.mysqli-character-set-name | function.mysqli-change-user | function.mysqli-bind-result | function.mysqli-bind-param | function.mysqli-autocommit | function.mysqli-affected-rows | function.mysql-unbuffered-query | function.mysql-thread-id | function.mysql-tablename | function.mysql-stat | function.mysql-select-db | function.mysql-result | function.mysql-real-escape-string | function.mysql-query | function.mysql-ping | function.mysql-pconnect | function.mysql-num-rows | function.mysql-num-fields | function.mysql-list-tables | function.mysql-list-processes | function.mysql-list-fields | function.mysql-list-dbs | function.mysql-insert-id | function.mysql-info | function.mysql-get-server-info | function.mysql-get-proto-info | function.mysql-get-host-info | function.mysql-get-client-info | function.mysql-free-result | function.mysql-field-type | function.mysql-field-table | function.mysql-field-seek | function.mysql-field-name | function.mysql-field-len | function.mysql-field-flags | function.mysql-fetch-row | function.mysql-fetch-object | function.mysql-fetch-lengths | function.mysql-fetch-field | function.mysql-fetch-assoc | function.mysql-fetch-array | function.mysql-escape-string | function.mysql-error | function.mysql-errno | function.mysql-drop-db | function.mysql-db-query | function.mysql-db-name | function.mysql-data-seek | function.mysql-create-db | function.mysql-connect | function.mysql-close | function.mysql-client-encoding | function.mysql-change-user | function.mysql-affected-rows |


PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML. If you are new to PHP and want to get some idea of how it works, try the introductory tutorial. After that, check out the online manual, and the example archive sites and some of the other resources available in the links section.