How to Check Whether mysqli connection is open before closing it

Question

I am going to use mysqli_close($connection) to close the $connection. But Before Closing I need to ensure that the concerned connection is open.

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Answer 1

Got to check if there is a connection before ping

CAUTION!!!

ALWAYS do your job and explicity close your connection because other things may go wrong before php closes it by script ending

<?php

$link = mysqli_connect("localhost", "username", "pwd", "mydatabase");

if (

  $link                 // has a connection ?

  && mysqli_ping($link) // is it connected ?

) {

mysqli_close($link)

}

?>