package DBH;
use strict;
use DBI ();

my $mysql_server    = "You fill this in";
my $mysql_user        = "You fill this in";
my $mysql_password    = "You fill this in";
my $mysql_db        = "You fill this in";

sub connect {
    if (defined $DBH::conn) {
        my $ret;
    eval {
            $ret = DBH->ping;
        };
        if (!$@ && $ret) {
            return $DBH::conn;
        }
    }
  
    $DBH::conn = DBI->connect(
        "DBI:mysql:$mysql_db;$mysql_server",$mysql_user,$mysql_passwor
+d,
    {
            PrintError => 1,
            RaiseError => 0,

        }
    ) || die $DBI::errstr; #Assume application handles this

      return $DBH::conn;
  }

sub ping {
    my $ret = 0;

    if (time - $DBI::lastPing < 10) {
         return 1;
    }
    
    eval {
        local $SIG{__DIE__}  = sub { return (0); };
        local $SIG{__WARN__} = sub { return (0); };
        # adapt the select statement to your database:
        $ret = $DBH::conn->do('select 1');
        $DBI::lastPing = time;    #record time in seconds
        };
    $debug && print STDERR "DBH.pm: pinging DB handle: $ret\n";
    return ($@) ? 0 : $ret;
}
1;

# now you can use this in your script:

#!/usr/bin/perl -w
use strict;
use DBH;
my $dbh = DBH->connect();
my $sth = $dbh->prepare("your query...");
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