php getimagesize function gets the image width and height

If you want to use php to get the height and width of the image, we can directly use the getimagesize function in php to operate. Let me introduce to you in detail how to use the getimagesize function.

getimagesize() function will measure any GIF, JPG, PNG , SWF, SWC, PSD, TIFF, BMP, IFF, JP2, JPX, JB2, JPC, XBM or WBMP image file size and returns the dimensions of the image as well as the file type and a height that can be used in the IMG tag in ordinary HTML files /width text string, the code is as follows:

$arr = getimagesize("1.jpg");

/**

* Here $arr is an array type

* $arr[0] is the width of the image

* $arr[1] is the height of the image

* $arr[2] is the format of the image, including jpg, gif and png, etc.

* $arr[3] is the width and height of the image, and the content is width="xxx" height="yyy"

*/

/* The following two lines of code output the same content */

echo "";

echo "";

?>

The above php code The content is interpreted as, and the code is as follows:

Example #1 getimagesize(file), the code is as follows:

list($width, $height, $type, $ attr) = getimagesize("img/flag.jpg");

echo "";

//Open source code phpfensi.com

?>