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IP : 216.73.216.155
Hostname : vm5018.vps.agava.net
Kernel : Linux vm5018.vps.agava.net 3.10.0-1127.8.2.vz7.151.14 #1 SMP Tue Jun 9 12:58:54 MSK 2020 x86_64
Disable Function : None :)
OS : Linux
PATH:
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var
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..
/
usr
/
share
/
doc
/
libperl5.10
/
..
/
libdbd-mysql-perl
/
examples
/
issue21946.pl
/
/
#!/usr/bin/perl use GD; use DBI; # Load Database Interface Module use Data::Dumper; # Connect to database my $dbh = DBI->connect ('DBI:mysql:database=test;host=localhost:mysql_server_prepare=1', 'myUser', 'myPassword', {RaiseError => 1}) or die "$0: Can not connect to database: " . $DBI::errstr; # create a new image $im = new GD::Image(6490,4000); # allocate color black $black = $im->colorAllocate(0,0,0); # The maximum id value in table is 25958999 my $sth = $dbh->prepare("SELECT id FROM myTable WHERE id=?"); my $id = 1; foreach $x (0..6489) { print "x=$x/6490 id=$id\n"; foreach $y (0..3999){ $sth->execute($id); if ($sth->fetchrow_array) { $im->setPixel($x,$y,$black); } $id = $id + 1; } open(OUT,">/tmp/id.png") or die "can not write output file"; binmode OUT; print OUT $im->png; close(OUT); }
/var/../usr/share/doc/libperl5.10/../libdbd-mysql-perl/examples/issue21946.pl