Question

如何在上传图像后检查图像的尺寸如果它与我想要的尺寸不匹配，请删除它吗？

所以在挖掘之后我发现PHP无法做尺寸。我所遵循的解决方案是：

将文件上传到服务器
使用该新字符串并检查
删除它或继续上传（如果有）与宽度和高度不匹配

这是我的代码。有人可以告诉我如何检查当前文件的尺寸以及如果不匹配，如何删除文件夹和文件？

# create our temp dir
    mkdir("./uploads/temp/".$user."/".$mx."/".$hash."/", 0777, true);
    # upload dir settup
    $uploaddir='./uploads/temp/'.$user.'/'.$mx.'/'.$hash.'/';
    $file=$uploaddir . basename($_FILES['file']['name']);

    # upload the file first
    if (move_uploaded_file($_FILES['file']['tmp_name'], $file)) {
        # ok so check the height and width
        # if it is not the width and height assigned delete image and folder
        if (image height= and width =){
            unlink($file);
            rmdir($uploaddir);
            $result=0;
        } else {
        # image matches height and width message ok
            $result=1;
        }
    } else {
        # error uploading
        $result=$errormsg;
    }

Answer 1

mkdir("./uploads/temp/".$user."/".$mx."/".$hash."/", 0777, true);
# upload dir settup
$uploaddir='./uploads/temp/'.$user.'/'.$mx.'/'.$hash.'/';
$file=$uploaddir . basename($_FILES['file']['name']);

# upload the file first
if (move_uploaded_file($_FILES['file']['tmp_name'], $file)) {
    # ok so check the height and width
    # if it is not the width and height assigned delete image and folder
    $size = getimagesize($files);
    $maxWidth = 500;
    $maxHeight = 500;
    if ($size[0] > $maxWidth || $size[1] > $maxHeight)
    {
        unlink($file);
        rmdir("./uploads/temp/".$user."/".$mx."/".$hash."/");
        rmdir("./uploads/temp/".$user."/".$mx."/");
        rmdir("./uploads/temp/".$user."/");
    }
    else
        $result=1;
    end if
} else {
    # error uploading
    $result=$errormsg;
}

Answer 2

我将getimagesize函数与GD库一起使用。

使用示例：

list($width, $height, $type, $attr) = @getimagesize($imageUri);

if (($height > 500) && ($width > 500)) {
    throw new Exception(sprintf('Invalid image: %d(h) and %d(w) are not within tolerable range', $height, $width));
}

Answer 3

获取dimensio n temp_file

非常简单易用

$image_info = getimagesize($_FILES["file_field_name"]["tmp_name"]);
$image_width = $image_info[0];
$image_height = $image_info[1];

Answer 4

这个怎么样？ http://php.net/manual/en/function.getimagesize.php

http://php.net/manual/en/function.rmdir.php

要删除该文件夹，该文件夹应为空。

PHP图像上传检查尺寸

4 个答案: