When using the mysql_ping command under php 5.1.2 and mysql
5.0, I was having problems with the auto-reconnect
"feature", mainly that when the connection was
severed, a mysql_ping would not automatically re-establish
the connection to the database.
The connection to the DB is dropped when the time without a
query excedes the wait_timeout value in my.cnf. You can
check your wait_timeout by running the query "SHOW
VARIABLES;"
If you're having problems auto-reconnecting when the
connection is dropped, use this code:
<?php
$conn = mysql_connect('localhost','user','pass');
mysql_select_db('db',$conn);
if (!mysql_ping ($conn)) {
//here is the major trick, you have to close the
connection (even though its not currently working) for it to
recreate properly.
mysql_close($conn);
$conn = mysql_connect('localhost','user','pass');
mysql_select_db('db',$conn);
}
//run queries knowing that your connection is alive....
?>
----
Server IP: 64.71.164.2
Probable Submitter: 216.16.201.50
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----
Manual Page --
http://www.php.net/manual/en/function.mysql-ping.php
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