PHP getimagesize function Get picture width height _php tutorial

Source: Internet
Author: User
If you want to use PHP to get the height and width of the image we can directly use the PHP getimagesize function to operate, let me give you a detailed introduction to the GetImageSize function use method.

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

The code is as follows Copy Code

$arr = getimagesize ("http://www.php100.com/html/php/hanshu/2013/0905/1.jpg");

/**
* Here $arr for an array type
* $arr [0] is the width of the image
* $arr [1] is the height of the image
* $arr [2] format for images, including JPG, GIF, PNG, etc.
* $arr [3] is the width and height of the image, the content is width= "xxx" height= "yyy"
*/

/* The following two lines of code output the same content */
echo "";
echo "";
?>

The above PHP code is interpreted as content:

The code is as follows Copy Code



Cases

Example #1 getimagesize (file)

The code is as follows Copy Code

List ($width, $height, $type, $attr) = getimagesize ("http://www.php100.com/html/php/hanshu/2013/0905/img/flag.jpg");
echo "";
?>


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