蓝色魔方Jquery文件上传S3和调整大小

Question

蓝色魔方Jquery文件上传S3和调整大小

4

我将使用Blueimp/jQuery-File-Uploader和适用于其的Amazon S3插件，一切都运行良好，但我需要将我的图像调整为最短边不超过或不少于640px。

我的当前代码是：

   global $s3;
    if (isset($_REQUEST['_method']) && $_REQUEST['_method'] === 'DELETE') {
        return "";
    }
    $upload = isset($_FILES['files']) ? $_FILES['files'] : null;
    $info = array();
    if ($upload && is_array($upload['tmp_name'])) {
        foreach($upload['tmp_name'] as $index => $value) {
            $fileTempName = $upload['tmp_name'][$index];

            $file_name = (isset($_SERVER['HTTP_X_FILE_NAME']) ? $_SERVER['HTTP_X_FILE_NAME'] : $upload['name'][$index]);
            $extension=end(explode(".", $file_name));
            $rand = rand(1,100000000);
            $sha1 = sha1($rand);
            $md5 = md5($sha1);
            $filename = substr($md5, 0, 8);
            $fileName=$filename.".".$extension;    

            $fileName = $prefix.str_replace(" ", "_", $fileName);
            $response = $s3->create_object($bucket, $fileName, array('fileUpload' => $fileTempName, 'acl' => AmazonS3::ACL_PUBLIC, 'meta' => array('keywords' => 'example, test'),));
            if ($response->isOK()) {
                $info[] = getFileInfo($bucket, $fileName);
            } else {
                //     echo "<strong>Something went wrong while uploading your file... sorry.</strong>";

            }
        }

我写了这段 PHP 代码，但不确定如何将两者结合起来。

$image = new Imagick('test2.jpg');
$imageprops = $image->getImageGeometry();

$w=$imageprops['width'];
$h=$imageprops['height'];
$edge = min($w,$h);
$ratio = $edge / 640;

$tWidth = ceil($w / $ratio);
$tHeight = ceil($h / $ratio);

if ($imageprops['width'] <= 640 && $imageprops['height'] <= 640) {
    // don't upscale
} else {
    $image->resizeImage($tWidth,$tHeight,imagick::FILTER_LANCZOS, 0.9, true);
}
$image->writeImage("test2-resized.jpg");

任何帮助都将不胜感激，谢谢。

- Justin Erswell

以上的代码是否都经过测试并且运行正常？ - Bogdan Stăncescu

是的，单独来看都没问题。 - Justin Erswell

1个回答

网页内容由stack overflow 提供, 点击上面的

可以查看英文原文，
原文链接

- Bogdan Stăncescu · Accepted Answer

这是基于假设OP消息中的所有代码都是正确的，并按请求重新排列的。更新：四个赞（到目前为止）似乎表明OP不仅在代码方面正确，而且在问题的重要性方面也正确。作为常规实践，我会做OSS，请明确告诉我是否感兴趣，以便我们可以通过github改进它（任何行动都可以-点赞问题、点赞答案、发表评论或任何组合）。


function resize($imgName, $srcName)
{
    $image = new Imagick($imgName);
    $imageprops = $image->getImageGeometry();

    $w=$imageprops['width'];
    $h=$imageprops['height'];
    $edge = min($w,$h);
    $ratio = $edge / 640;

    $tWidth = ceil($w / $ratio);
    $tHeight = ceil($h / $ratio);

    if ($imageprops['width'] <= 640 && $imageprops['height'] <= 640) {
        return $imgName;
    } else {
        $image->resizeImage($tWidth,$tHeight,imagick::FILTER_LANCZOS, 0.9, true);
    }
    $extension=end(explode(".", $srcName));
    // Change "/tmp" if you're running this on Windows
    $tmpName=tempnam("/tmp", "resizer_").".".$extension;
    $image->writeImage($tmpName);
    return $tmpName
}

global $s3;
if (isset($_REQUEST['_method']) && $_REQUEST['_method'] === 'DELETE') {
    return "";
}
$upload = isset($_FILES['files']) ? $_FILES['files'] : null;
$info = array();
if ($upload && is_array($upload['tmp_name'])) {
    foreach($upload['tmp_name'] as $index => $value) {
        $file_name = (isset($_SERVER['HTTP_X_FILE_NAME']) ? $_SERVER['HTTP_X_FILE_NAME'] : $upload['name'][$index]);
        $fileTempName = resize($upload['tmp_name'][$index], $file_name);
        $extension=end(explode(".", $file_name));
        $rand = rand(1,100000000);
        $sha1 = sha1($rand);
        $md5 = md5($sha1);
        $filename = substr($md5, 0, 8);
        $fileName=$filename.".".$extension;    

        $fileName = $prefix.str_replace(" ", "_", $fileName);
        $response = $s3->create_object($bucket, $fileName, array('fileUpload' => $fileTempName, 'acl' => AmazonS3::ACL_PUBLIC, 'meta' => array('keywords' => 'example, test'),));
        if ($response->isOK()) {
            $info[] = getFileInfo($bucket, $fileName);
        } else {
            //     `echo "<strong>Something went wrong while uploading your file... sorry.</strong>";`

        }
        unlink($fileTempName);
}