Snippets Graphics
Graphics
The Dynamic Duo: barcode.php & barcode.cgi
by: Dave - flyingmonkeysoftware.com
|
June 29, 2001
Version: 0.01
Type: Full Script
Category: Graphics
License: GNU General Public License
Description: initial version for dynamic UPC code image generation using php, perl, a flat file, and GD::Barcode
# ----------------------- barcode.php -----------------------#
<?
/*
barcode.php
Copyright 2001 Dave Turner <dave@flyingmonkeysoftware.com>, All Rights Reserved.
You may distribute under the terms of either the GNU General Public License or the Artistic License, as specified in the Perl README file.
*/
$script = '/barcode.php';
$imagescript = '/cgi-bin/barcode.cgi';
$flatfile = './barcode.txt';
$fp = fopen ($flatfile, "r");
while (!feof ($fp)) {
$line = fgets($fp, 4096);
if(preg_match("/(\S*) (\S.*)/",$line,$match)) {
$history .= '<a href="' . $script . '?upc=' . $match[1] . '">' . $match[2] . "</a><br>\n";
if(preg_match("/$match[1]/",$describe)) {
$done = 1;
}
}
}
fclose ($fp);
if(preg_match("/(\d+)/",$describe,$m)) {
$upc = $m[1];
$code = join ('',file ("http://www.upcdatabase.com/item.pl?upc=".$upc));
if(!$code) {
$description = "Request failed.";
} else {
// wipe out html tags
$search = array (
"'<script[^>]*?>.*?</script>'si", // Strip out javascript
"'<[\/\!]*?[^<>]*?>'si", // Strip out html tags
"'([\r\n])[\s]+'", // Strip out white space
"'&(quot|#34);'i", // Replace html entities
"'&(amp|#38);'i",
"'&(lt|#60);'i",
"'&(gt|#62);'i",
"'&(nbsp|#160);'i",
"'&(iexcl|#161);'i",
"'&(cent|#162);'i",
"'&(pound|#163);'i",
"'&(copy|#169);'i",
"'&#(\d+);'e" // evaluate as php
);
$replace = array ("",
"",
"\\1",
"\"",
"&",
"<",
">",
" ",
chr(161),
chr(162),
chr(163),
chr(169),
"chr(\\1)"
);
$code = preg_replace ($search, $replace, $code);
if(preg_match ("/Description(.*\n)/",$code,$match)) {
$filedescription = $match[1];
$description = $filedescription . "<br>\n";
} else {
$description = "no description<br>\n";
}
if(preg_match ("/Manufacturer(.*\n)/",$code,$match)) {
$description .= $match[1] . "<br>\n";
} else {
$description .= "no manufacturer<br>\n";
}
if(preg_match ("/Size\/Weight(.*\n)/",$code,$match)) {
$description .= $match[1] . "<br>\n";
} else {
$description .= "no size/weight<br>\n";
}
if(preg_match ("/\w+/",$filedescription) && !$done) {
// save it for later!
$fp = fopen ($flatfile, "ab");
fwrite ($fp, "$upc $filedescription");
fclose ($fp);
}
}
} else {
$description = "<a href='$script?describe=$upc'>What the hell is it?</a>";
}
?>
<HTML>
<HEAD>
<TITLE>UPC Type A, E Barcodes</TITLE>
<style type="text/css">
<!--
body {font-face:arial,helvetica,sans-serif;color:#FFFFFF;background-color:#666666;}
td {font-face:arial,helvetica,sans-serif;color:black;}
li {font-size:11pt;font-face:arial,helvetica,sans-serif;color:#000099;}
-->
</style>
</HEAD>
<BODY
BGCOLOR="#666666"
TEXT="#000000"
LINK="#0000FF"
VLINK="#000080"
ALINK="#FF0000"><center><h3>This is <?
echo get_current_user().' on '.getenv(SERVER_NAME) . " with PHP" . phpversion();
?></h3><br><?
if (ImageTypes()) {
if (IMG_PNG) {
echo "IMG_PNG Support is enabled<br>";
}
if (IMG_GIF) {
echo "IMG_GIF Support is enabled<br>";
}
if (IMG_JPG) {
echo "IMG_JPG Support is enabled<br>";
}
if (IMG_WBMP) {
echo "IMG_WBMP Support is enabled<br>";
}
}
?><hr width=50% size=1 noshade><br><? echo php_logo_guid (); ?><table
cellspacing=1
cellpadding=0
bgcolor=#000000
border=0
width=350><?
if(!preg_match("/\d/",$upc)) {
$upc = '037900991053';
}
if(preg_match("/off/",$text)) {
$textoff = ' checked';
} else {
$texton = ' checked';
}
?><tr
bgcolor=#E0E0E0><td
align=center
valign=middle><img src='<? echo $imagescript; ?>?upc=<? echo $upc; ?>&text=<? echo $text; ?>&size=<? echo $size; ?>'
vspace=10></td><td
align=center
valign=middle><? echo $description; ?></td></tr><tr
bgcolor=#ffffff><td colspan=2><table
cellspacing=0
cellpadding=10
border=0
width=100%><tr><td align=center><form>UPC: <input
type=text
width=12
name=upc
value=<?
echo "$upc";
if($size == 100) {
$hundredselect = ' selected';
$eightyselect = '';
$sixtyselect = '';
$fortyselect = '';
} elseif($size == 80) {
$hundredselect = '';
$eightyselect = ' selected';
$sixtyselect = '';
$fortyselect = '';
} elseif($size == 40) {
$hundredselect = '';
$eightyselect = '';
$sixtyselect = '';
$fortyselect = ' selected';
} else {
$hundredselect = '';
$eightyselect = '';
$sixtyselect = ' selected';
$fortyselect = '';
}
?>> <input
type=submit
value=' Draw BarCode '><br>Text: <input
type='radio'
name='text'
value='on'<? echo $texton; ?>>ON <input
type='radio'
name='text'
value='off'<? echo $textoff; ?>>OFF Height: <select
name='size'><option
value='40'<? echo $fortyselect; ?>> 40 </option><option
value='60'<? echo $sixtyselect; ?>> 60 </option><option
value='80'<? echo $eightyselect; ?>> 80 </option><option
value='100'<? echo $hundredselect; ?>> 100 </option></select></form> <?
echo $history;
?></td></tr></table></td></tr></table>
</center>
<br>
</BODY>
</HTML>
# ----------------------- barcode.cgi -----------------------#
#!d:/perl/bin/perl.exe
=head1
barcode.cgi
image output script support for UPCA and UPCB bar codes
12 digits for a normal Type A UPC code
(typical US retail items)
8 digits for a Type-E (zero-supressed) UPC code
(a pack of smokes)
Usage:
/cgi-bin/barcode.cgi?upc=080808&text=on&size=60
=cut
use CGI 'param';
my($oGdBar,$oGdErr);
my $upc = param('upc');
my $text = param('text') eq 'off' ? 1 : 0;
my $size = param('size') =~ /(100|80|40)/ ? $1 : 60;
binmode STDOUT;
print "Content-Type: image/png\n\n";
if(&validupcAcode($upc)) {
require GD::Barcode::UPCA;
$oGdBar = GD::Barcode::UPCA->new($upc);
$oGdErr = $GD::Barcode::UPCA::errStr unless($oGdBar);
} else {
require GD::Barcode::UPCE;
$oGdBar = GD::Barcode::UPCE->new($upc);
$oGdErr = $GD::Barcode::UPCE::errStr unless($oGdBar);
}
if($oGdBar) {
print $oGdBar->plot(Height => $size, NoText => $text)->png;
} else {
my $im = new GD::Image(100,$size);
my $white = $im->colorAllocate(255,255,255);
my $black = $im->colorAllocate(66,66,66);
my $red = $im->colorAllocate(255,0,0);
$im->rectangle(0,0,99,$size-1,$black);
$im->fill(75,50,$white);
if($^O =~ /win/i) {
my @bounds = GD::Image->stringTTF($red,"c:\\windows\\fonts\\arial.ttf",12,0,0,0,$oGdErr)
or die $@;
my($x,$y) = ((100 - $bounds[2]) / 2,($size - $bounds[3]) / 2);
$im->stringTTF($red,"c:\\windows\\fonts\\arial.ttf",12,0,$x,$y,$oGdErr)
or die $@;
} else {
my $y = $size / 2 + 5;
$im->string(gdSmallFont,10,$y,'Invalid Code',$red);
}
print $im->png;
}
sub validupcAcode {
my($upc_code) = @_;
my($numsys,$mfrcode,$prodcode,$checkdigit) = $upc_code =~ /(\d)(\d{5})(\d{5})(\d)/ ?
($1,$2,$3,$4) : return undef;
$mfrcode =~ /(\d)(\d)(\d)(\d)(\d)/;
my($a,$b) = ($2+$4,$1+$3+$5);
$prodcode =~ /(\d)(\d)(\d)(\d)(\d)/;
$a += $1+$3+$5;
$b += $2+$4;
my $checkmatch = $a*3+$b;
$checkmatch =~ s/\d+(\d)/$1/;
return 1 if $checkdigit == abs($checkmatch - 10);# match!
return undef;# sucks!
}
=head1
COPYRIGHT
Copyright 2001 Dave Turner <dave@flyingmonkeysoftware.com>, All Rights Reserved.
You may distribute under the terms of either the GNU General Public License or the Artistic License, as specified in the Perl README file.
=cut
PHPBuilder
Policies
PHP Developer
Topics
PHP Developer
Resources
PHP Developer
References
