note 39095 added to function.mysql-select-db
| From: | james at gogo dot co dot nz | Date: | Fri, 16 Jan 2004 21:45:07 +0000 |
| Subject: | note 39095 added to function.mysql-select-db | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-63703@lists.php.net to get a copy of this message | ||
Be carefull if you are using two databases on the same server at the same time. By default
mysql_connect returns the same connection ID for multiple calls with the same server parameters,
which means if you do
<?php
$db1 = mysql_connect(...stuff...);
$db2 = mysql_connect(...stuff...);
mysql_select_db('db1', $db1);
mysql_select_db('db2', $db2);
?>
then $db1 will actually have selected the database 'db2', because the second call to
mysql_connect just returned the already opened connection ID !
You have two options here, eiher you have to call mysql_select_db before each query you do, or if
you're using php4.2+ there is a parameter to mysql_connect to force the creation of a new link.
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Manual Page -- http://www.php.net/manual/en/function.mysql-select-db.php
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