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Get Remote File Size

/ Published in: PHP
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  1. function get_remote_file_size($url) {
  2.    $parsed = parse_url($url);
  3.    $host = $parsed["host"];
  4.    $fp = @fsockopen($host, 80, $errno, $errstr, 20);
  5.    if (!$fp) return false;
  6.    else {
  7.        @fputs($fp, "HEAD $url HTTP/1.1
  8. ");
  9.        @fputs($fp, "HOST: $host
  10. ");
  11.        @fputs($fp, "Connection: close
  12.  
  13. ");
  14.        $headers = "";
  15.        while(!@feof($fp))$headers .= @fgets ($fp, 128);
  16.    }
  17.    @fclose ($fp);
  18.    $return = false;
  19.    $arr_headers = explode("\n", $headers);
  20.    foreach ($arr_headers as $header) {
  21.        $s = "Content-Length: ";
  22.        if (substr(strtolower ($header), 0, strlen($s)) == strtolower($s)) {
  23.            $return = trim(substr($header, strlen($s)));
  24.            break;
  25.        }
  26.    }
  27.    if ($return) {
  28.               $size = round($return / 1024, 2);
  29.               $sz = "KB"; // Size In KB
  30.         if ($size > 1024) {
  31.             $size = round($size / 1024, 2);
  32.             $sz = "MB"; // Size in MB
  33.         }
  34.         $return = "$size $sz";
  35.    }
  36.    return $return;
  37. }

URL: http://www.weberdev.com/get_example-4610.html

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