Question

我正在尝试将多个图像上传到服务器并为每个图像制作不同的分辨率版本。要做到这一点，我第一次使用class.upload.php。 http://www.verot.net/php_class_upload.htm

我查看文档并从演示示例http://www.verot.net/php_class_upload_download_zip.htm

开始

我制作了一个包含多个输入的表单

<form name="form3" enctype="multipart/form-data" method="post" action="upload.php">
   <p><input type="file" size="32" name="my_field[]" value="" /></p>
   <p><input type="file" size="32" name="my_field[]" value="" /></p>
   <p><input type="file" size="32" name="my_field[]" value="" /></p>
   <p><input type="file" size="32" name="my_field[]" value="" /></p>
   <p><input type="file" size="32" name="my_field[]" value="" /></p>
   <p class="button"><input type="hidden" name="action" value="multiple" />
   <input type="submit" name="Submit" value="upload" /></p>
</form>

示例中的原始php仅上传图像而不调整大小：

$files = array();
foreach ($_FILES['my_field'] as $k => $l) {
    foreach ($l as $i => $v) {
        if (!array_key_exists($i, $files))
            $files[$i] = array();
        $files[$i][$k] = $v;
    }
}

// now we can loop through $files, and feed each element to the class
foreach ($files as $file) {

    // we instanciate the class for each element of $file
    $handle = new Upload($file);

    // then we check if the file has been uploaded properly
    // in its *temporary* location in the server (often, it is /tmp)
    if ($handle->uploaded) {

        // now, we start the upload 'process'. That is, to copy the uploaded file
        // from its temporary location to the wanted location
        // It could be something like $handle->Process('/home/www/my_uploads/');
        $handle->Process($dir_dest);

        // we check if everything went OK
        if ($handle->processed) {
            // everything was fine !
            echo 'ok';
        } else {
            // one error occured
            echo '  Error: ' . $handle->error . '';
        }

    } else {
        // if we're here, the upload file failed for some reasons
        // i.e. the server didn't receive the file
        echo '  Error: ' . $handle->error . '';
    }
}

我想要做的是处理if（$ handle-＆gt; processed）{}中的每个文件所以我从函数形式中调整了img的大小并将其粘贴到if（$ handle-＆gt; processed）{}部分中。现在它看起来像这样：

if ($handle->uploaded) {

        // now, we start the upload 'process'. That is, to copy the uploaded file
        // from its temporary location to the wanted location
        // It could be something like $handle->Process('/home/www/my_uploads/');
        // now, we start a serie of processes, with different parameters
        // we use a little function TestProcess() to avoid repeting the same code too many times
        function TestProcess(&$handle, $title) {
            global $dir_pics, $dir_dest;

            $handle->Process($dir_dest);

            // we check if everything went OK
            if ($handle->processed) {
                // everything was fine !
                echo 'ok';
            } else {
                // one error occured
                echo '  Error: ' . $handle->error . '';
           }
        }
        if (!file_exists($dir_dest)) mkdir($dir_dest);

        // ----------- save the uploaded img adding _xl to the name
        $handle->file_name_body_add    = '_xl';
        $handle->file_overwrite = true;
        TestProcess($handle, 'File originale', '');

        // ----------- save the uploaded img adding _l to the name and downsizing it
        $handle->file_name_body_add    = '_l';
        $handle->image_resize          = true;
        $handle->image_ratio_y         = true;
        $handle->image_x               = 1024;
        $handle->file_overwrite = true;
        TestProcess($handle, 'Ridimensionato a 1024px');
    }

此时脚本仅适用于第一个img。它不会使“foreach（$ files as $ file）”使用$ files数组... 你能帮我找到错误的地方吗？ thaks 丹尼尔

Answer 1

这里的类的创建者......你需要首先更改$ files数组，如下所示。它位于FAQ：

$files = array();
foreach ($_FILES['my_field'] as $k => $l) {
 foreach ($l as $i => $v) {
 if (!array_key_exists($i, $files))
   $files[$i] = array();
   $files[$i][$k] = $v;
 }
}

Answer 2

好的，所以我尝试使用verot的答案，但出现了很多错误，我在网上尝试了其他答案。

这是可行的解决方案。

$placeDir = $_SERVER['DOCUMENT_ROOT'] . '/myuploadfolder';

$files = [];
foreach ($_FILES['image_field']['name'] as $key => $value) {
    if(!empty($_FILES['image_field']['name'][$key])){
        $name  = $_FILES['image_field']['name'][$key];
        $type  = $_FILES['image_field']['type'][$key];
        $tmp   = $_FILES['image_field']['tmp_name'][$key];
        $error = $_FILES['image_field']['error'][$key];
        $size  = $_FILES['image_field']['size'][$key];
        $files[] = [
              'name'     => $name
            , 'type'     => $type
            , 'tmp_name' => $tmp
            , 'error'    => $error
            , 'size'     => $size
        ];
    }
}

foreach($files as $file){
    $image = new uploadHelper($file);
    $image->allowed = array('image/*');
    if ($image->uploaded) {
      $image->process($placeDir);
      if ($image->processed) {
        echo 'image done';
        $image->clean();
      } else {
        echo 'error : ' . $image->error;
      }
    } else {
        echo '<h1>IMAGE NOT UPLOADED</H1>';
    }
}

我真的希望这对在那里的人们有所帮助。

多次上传并调整class.upload.php的大小

2 个答案: