php - Loop barcode generator error -


i'm working barcode , using barcodephp library. it's working , want loop barcode , manage barcode position. problem seems library won't work when added echo "br" nor table. when added "br" or table barcode broke (won't show). here's result image:

enter image description here

and here's code:

require_once('layout/class/bcgfontfile.php'); require_once('layout/class/bcgcolor.php'); require_once('layout/class/bcgdrawing.php'); require_once('layout/class/bcgcode128.barcode.php');  // arguments r, g, , b color. $colorfont = new bcgcolor(0, 0, 0); $colorback = new bcgcolor(255, 255, 255); $font = new bcgfontfile('layout/class/font/arial.ttf', 18);  $drawexception = null; try {     $code = new bcgcode128();     $code->setscale(2); // resolution     $code->setthickness(30); // thickness     $code->setforegroundcolor($colorfont); // color of bars     $code->setbackgroundcolor($colorback); // color of spaces     $code->setfont($font); // font (or 0) } catch(exception $exception) {     $drawexception = $exception; } $drawing = new bcgdrawing('', $colorback); if($drawexception) {     $drawing->drawexception($drawexception); } else {     //for($i=0; $i<3; $i++) {         $code->parse('testing barcode'); // text         $drawing->setbarcode($code);         $drawing->draw();      //}     header('content-type: image/png');     $drawing->finish(bcgdrawing::img_format_png); }

here's code breakline:

for($i=0; $i<3; $i++) {         echo '<br>'; //won't work         $code->parse('testing barcode'); // text         $drawing->setbarcode($code);         $drawing->draw();         echo '<br>'; //won't work either  }

so found other way:

in barcode file changed line:

$code->parse($_get['tmp']); // text

and called other file this:

for($i=0; $i<3; $i++) {     echo '<img src="print.php?tmp="asdada"><br><br>'; }

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