Question

I have loaded an image from database to a variable named $image.
How can I get the width of the image while it is stored in the variable?

元数据变量包含图像数据。当我储存图像时,我刚刚从温带读到数据库。

The accepted answer fulfills this question.
However, I am doing some resizing on the $im variable, so I need to reconvert it to string data, that can be done with the imagepng function.

Answer 1

http://www.php.net/manual/Function.imagecreate fromstring.php" rel=“nofollow”_imagecreate fromstring with imagesx 。

和:

$im = imagecreatefromstring($image);
if ($im !== false) {
    echo imagesx($im);
}

Answer 2

如果您安装了GD,你就只能使用$size = 实现(简称);。

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