Home Backend Development PHP Tutorial FBI teaches you how to read minds pdf How to simply read the number of PDF pages using PHP

FBI teaches you how to read minds pdf How to simply read the number of PDF pages using PHP

Jul 27, 2016 pm 04:56 PM

The example in this article describes the implementation method of simply reading the number of PDF pages in PHP. I share it with you for your reference. The details are as follows:

Foreigners are more kind. I found such a method on the foreigner's website.

I wrote it into a function, and then wrote the function into the PdfUtil class in my own LeeLib library.

Very simple way, the speed is pretty good.

/**
* 获取PDF的页数
*/
function getPageTotal($path){
    // 打开文件
    if (!$fp = @fopen($path,"r")) {
      $error = "打开文件{$path}失败";
      return false;
    }
    else {
      $max=0;
      while(!feof($fp)) {
        $line = fgets($fp,255);
        if (preg_match('/\/Count [0-9]+/', $line, $matches)){
          preg_match('/[0-9]+/',$matches[0], $matches2);
          if ($max<$matches2[0]) $max=$matches2[0];
        }
      }
      fclose($fp);
      // 返回页数
      return $max;
    }
}

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