Laravel 5.6:创建图像缩略图 [英] Laravel 5.6: Create image thumbnails

问题描述

在我的旧PHP应用程序中，我曾经运行过一个像波纹管这样的功能来创建jpeg图片缩略图.

In my old PHP apps i used to run a function like the one bellow to create jpeg image thumbnails.

function imageThumbanail() {

 $image_src = imagecreatefromjpeg('http://examplesite.com/images/sample-image.jpg'); 

 $thumbnail_width = 180; //Desirable thumbnail width size 180px

 $image_width = imagesx($image_src); //Original image width size -> 1080px

 $image_height = imagesy($image_src); //Original image height size -> 1080px

 $thumbnail_height = floor( $image_height * ( $thumb_width / $image_width ) ); //Calculate the right thumbnail height depends on given thumbnail width

 $virtual_image = imagecreatetruecolor($thumbnail_width, $thumbnail_height);

 imagecopyresampled($virtual_image, $image_src, 0, 0, 0, 0, $thumbnail_width, $thumbnail_height, $image_width, $image_height);

 header('Content-Type: image/jpeg');

 imagejpeg($virtual_image, null, 100);

 imagedestroy($virtual_image); //Free up memory

}

问题是，现在我想在laravel 5.6应用程序中运行类似的功能，因此我创建了一个具有完全相同功能的控制器，但是我没有得到图像缩略图作为输出，而是得到了问号和奇怪的菱形图标，类似于php gd库jpeg图像的编码版本.

The problem is that now i'd like to run a similar function in a laravel 5.6 app, so i created a controller with the exact same function but instead of get as an output the image thumbnail i get question marks and strange diamond icons, something like encoded version of php gd library jpeg image.

我试图使用return response()-> file($ pathToFile);如laravel文档所述，但我不会将缩略图存储在某个位置.

I tried to use return response()->file($pathToFile); as laravel documentation describes but i won't store in a location the thumbnail image.

有什么想法吗?

提前谢谢！

推荐答案

我建议您此软件包的安装和使用非常简单，并且非常适合编程. 它称为干预

I recommend you this package is very simple to install and use it and very kind with programming. Its called Intervention

用于处理图像的干预包

您可以使缩略图非常简单，如下所示:

You can make a thumbnail very simple like the following :

$img = Image::make('public/foo.jpg')->resize(320, 240)->insert('public/watermark.png');

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