PHP gets the image width, height, size, image type, and img attribute used for layout

The content of this article is about PHP obtaining the image width, height, size, image type, and img attributes used for layout. It has a certain reference value. Now I share it with you. Friends in need can refer to it

//php自带函数 getimagesize()
$img_info = getimagesize('tomener.jpg');
echo &#39;<pre class="brush:php;toolbar:false">&#39;;
print_r($img_info);
输出：
Array 
( 
[0] => 170
[1] => 254
[2] => 2
[3] => width="170" height="254"
[bits] => 8
[channels] => 3
[mime] => image/jpeg
)
这次要用到的就是第四个元素了

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