PHP：获取图像大小 [英] PHP: Obtaining Image Size

问题描述

我正在写下一个函数，它接受一个参数，即服务器上图像的物理路径。我想知道是否有可能以任何方式获得其原始大小的像素。

I am writing down a function and it takes an argument which is the physical path of an image on server. I was wondering if it is possible in any way to obtain its original size in pixels.

在一个变量中，我想存储它的宽度，而在其他变量中存储它的高度。让我问这个的挑战是因为我必须在服务器端获取它，因此任何客户端解决方案都无济于事。

In one variable I would like to store its width and in other variable its height. The challenge that made me ask this is because I have to obtain it on server-side thus any client-side solution would not help.

推荐答案

尝试使用以下内容：

<?php
    $size = getimagesize ("img.jpg");
    echo "<img src=\"img.jpg\" {$size[3]}>";
?>

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