thinkPHP framework implements method of generating barcodes-PHP Tutorial-php.cn

thinkPHP framework implements method of generating barcodes

不言

Release： 2023-03-30 10:38:01

Original

2536 people have browsed it

This article mainly introduces the method of generating barcodes in the thinkPHP framework, and analyzes the related operating techniques of thinkPHP combined with third-party barcode class files to generate barcodes in the form of examples. Friends in need can refer to the examples of this article

Describes how the thinkPHP framework implements barcode generation. Share it with everyone for your reference, the details are as follows:

Before we do it, we first download the barcode class. If you want to download this class, you can click hereDownload from this site.

We write a method code in the background as follows:

//生成条形码
public function barcode(){
  import(&#39;@.ORG.Util.barcode.BCGFontFile&#39;);//字体类
  import(&#39;@.ORG.Util.barcode.BCGColor&#39;);//字体颜色类
  import(&#39;@.ORG.Util.barcode.BCGDrawing&#39;);
  import(&#39;@.ORG.Util.barcode.BCGcode39&#39;);
  $text = $_GET[&#39;text&#39;];
  $texts = isset($text)?$text:&#39;00000000000&#39;;
  $color_black = new \BCGColor(0,0,0);
  $color_white = new \BCGColor(255,255,255);
  $drawException = null;
  try {
    $code = new \BCGcode39();
    $code->setScale(2);
    $code->setThickness(30);
    $code->setForegroundColor($color_black);
    $code->setBackgroundColor($color_white);
    $code->parse($texts);
  } catch(Exception $exception) {
    $drawException = $exception;
  }
  $drawing = new \BCGDrawing(&#39;&#39;, $color_white);
  if($drawException) {
    $drawing->drawException($drawException);
  } else {
    $drawing->setBarcode($code);
    $drawing->draw();
  }
  header(&#39;Content-Type: image/png&#39;);
  header(&#39;Content-Disposition: inline; filename="barcode.png"&#39;);
  $drawing->finish(\BCGDrawing::IMG_FORMAT_PNG);
}

Copy after login

Call it directly in the foreground:

<img src="{:U(&#39;ContractCommonApply/barcode&#39;)}/text/{$res[0][&#39;ContractCode&#39;]}" alt="">

Copy after login

Use js to call the code as follows:

<script type="text/javascript" language="JavaScript">
  document.writeln("<img src=/目录/test_1D.php?text=内容 />");
</script>

Copy after login

Related recommendations:

ThinkPHP view query

Solution to ThinkPHP automatic verification failure

The above is the detailed content of thinkPHP framework implements method of generating barcodes. For more information, please follow other related articles on the PHP Chinese website!