doubao6464 2016-10-23 08:39 采纳率: 100%
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如何向从url下载文件到服务器的脚本添加进度条

I have searched for a script that download files from url to server and I came across this script. It works fine but I want to add some things to it like multi urls and progress bar. As I am new in php I know a little .

Here is the script in which I want to implement:

<html>
<form method="post">
<input name="url" size="50" />
<input name="submit" type="submit" />
</form>
<?php
    // maximum execution time in seconds
    set_time_limit (24 * 60 * 60);

    if (!isset($_POST['submit'])) die();

    // folder to save downloaded files to. must end with slash
    $destination_folder = 'downloads/';

    $url = $_POST['url'];
    $newfname = $destination_folder . basename($url);

    $file = fopen ($url, "rb");
    if ($file) {
      $newf = fopen ($newfname, "wb");

      if ($newf)
      while(!feof($file)) {
        fwrite($newf, fread($file, 1024 * 8 ), 1024 * 8 );
      }
    }

    if ($file) {
      fclose($file);
    }

    if ($newf) {
      fclose($newf);
    }
?>
</html>
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3条回答 默认 最新

  • duanba4254 2016-10-23 10:46
    关注

    For the multiple links you can tell the user to input all links seperated with commas. Then you could create an array with these links (using explode function) and loop over it until you download all files from the links. The code is below:

    <html>
<form method="post">
<input name="url" size="50" />
<input name="submit" type="submit" />
</form>
<?php
// maximum execution time in seconds
set_time_limit (24 * 60 * 60);

if (!isset($_POST['submit'])) die();

// folder to save downloaded files to. must end with slash
$destination_folder = 'downloads/';

$urls = $_POST['url']; // I changed this variable's name to urls

$links = explode(",",$urls); // links is now an array with the links

foreach ($links as $url)
{       
    $newfname = $destination_folder . basename($url);

    $file = fopen ($url, "rb");
    if ($file) {
        $newf = fopen ($newfname, "wb");

        if ($newf)
            while(!feof($file)) {
                fwrite($newf, fread($file, 1024 * 8 ), 1024 * 8 );
            }
    }

    if ($file) {
      fclose($file);
    }

    if ($newf) {
      fclose($newf);
    }
}
?>

    Useful links:

    If you want to have another input box appear you would have to use javascript and it is a bit complicated. But if you want, I can show you that way too.

    For the progress bar, you will need javascript and css Bootstrap. I am trying to create a code that does what you want. When and if i manage to do so, I will upload it here, so you might want to come back later and check it out.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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