mysql_list_dbs
List databases available on a MySQL server
Warning
This function was deprecated in PHP 5.4.0, and it
and the entire original MySQL extension was removed in PHP 7.0.0.
Instead, use either the actively developed MySQLi or PDO_MySQL extensions.
See also the MySQL: choosing an API guide.
Alternatives to this function include:
- SQL Query:
SHOW DATABASES
Description
resource mysql_list_dbs(resource $link_identifier
= NULL)
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 had been called
with no arguments. If no connection is found or established, an
E_WARNING
level error is generated.
Return Values
Returns a result pointer resource on success, or false
on
failure. Use the mysql_tablename function to traverse
this result pointer, or any function for result tables, such as
mysql_fetch_array.
Examples
Example #1 mysql_list_dbs example
<?php
// Usage without mysql_list_dbs()
$link = mysql_connect('localhost', 'mysql_user', 'mysql_password');
$res = mysql_query("SHOW DATABASES");
while ($row = mysql_fetch_assoc($res)) {
echo $row['Database'] . "\n";
}
// Deprecated as of PHP 5.4.0
$link = mysql_connect('localhost', 'mysql_user', 'mysql_password');
$db_list = mysql_list_dbs($link);
while ($row = mysql_fetch_object($db_list)) {
echo $row->Database . "\n";
}
?>
The above example will output
something similar to:
database1
database2
database3
Notes
Note:
For backward compatibility, the following
deprecated alias may be used:
mysql_listdbs
See Also
- mysql_db_name
- mysql_select_db