SQL, PHP - Close a sleeping connection

Good day to all. I have a little problem:

How do I close the sleeping connections to a database?

When I issue a query the query is executed then the connection remains on sleep mode for 2-3 seconds. The problem is that开发者_JAVA技巧 I generate queries faster than they are closed.

Is there a way to force a connection to close before entering in the sleep mode? Or any workaround.

Thank you for help.

Note: The connections are not permanent, they close, but just to slow... Note 2 - for the mysql_close(): The command is issued at the end of the query. Still the query goes into sleep mode before close. I attach a print screen in a min.

Notice the sleeping connections... they will be closed in 1-3 secs... but I generate another queries faster. I need to skip the sleep wasted time.

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Are you using mysql_pconnect() ? If not, this should not happen if you properly close every connection made to your database.

Edit : Similar issue ?

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Explicitly. For example, if you are using mysql then call mysql_close(). Or the equivalent for whatever database you are using.

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my class for dbconnection hast mysqli_close($this->conn); in its __destruct() so that every connection is closed on destruction of the connection.

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Try setting the wait_timeout variable = 1 so they will close after 1 second.