Check if a variable is a resource in PHP
Description
The following code shows how to check if a variable is a resource.
Example
<?php/* w w w . j a va 2s . co m*/
$db_link = @mysql_connect('localhost', 'mysql_user', 'mysql_pass');
if (!is_resource($db_link)) {
die('Can\'t connect : ' . mysql_error());
}
?>