What is PhpDig?
PhpDig is a PHP MySQL based
Web Spider & Search Engine.



mysql_list_dbs — Lists the databases on a MySQL server.


mysql result mysql_list_dbs([connection]);
mysql link connection (optional): Connection handle returned by mysql_connect() or mysql_pconnect()


MySQL result handle; FALSE on error


mysql_list_dbs() fetches a list of the databases available for a given connection and returns a mysql result handle that can be traversed with mysql_result() . If the connection argument is not specified, the last connection opened will be used. If no connection is open, mysql_list_dbs() attempts to connect to a MySQL database by calling mysql_connect() without arguments.


PHP 3+, PHP 4+

See also

Gather information on the fields in a table


Gather information on the tables in a database



Example 818. Display a list of all databases on the current MySQL server

// Included code that connects to a MySQL server and sets a default database
// See the MySQL Functions chapter introduction for the source code for the file
include ('');

$result_handle = mysql_list_dbs ()
   or die ("mysql_list_dbs() failed with this error message: '" . mysql_error () . "'");
$number_rows = mysql_num_rows ($result_handle);

echo "The MySQL server on '$host' contains $number_rows databases:<ol>";

for ($index=0; $index < $number_rows; ++$index) {
   echo '<li>', mysql_result ($result_handle, $index, 0), '</li>';
echo '</ol>';

PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at The authors of this book have elected not to choose any options under the OPL. This online book was obtained from and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.

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