PHP | getimagesizefromstring() Function

The getimagesizefromstring() function is an inbuilt function in PHP which is used to get the size of an image from a string. This function accepts the image data as a string parameter and determines the image size and returns the dimensions with the file type and height/width of the image.

Syntax:

array getimagesizefromstring( $imagedata, &$imageinfo )

Parameters: This function accepts two parameters as mentioned above and described below:

• $filename: It is a mandatory parameter which accepts image data as a string.
• $imageinfo: It is an optional parameter which allows to extract some extended information from the image file such as the different JPG APP markers as associative array.

Return Value: This function returns the dimensions along with the file type and the height/width text string.

Below programs illustrate the getimagesizefromstring() function in PHP:

Image:

Example 1 :

Output:

array(6) { 
    [0]=> int(667) 
    [1]=> int(184) 
    [2]=> int(3) 
    [3]=> string(24) "width="667" height="184"" 
    ["bits"]=> int(8) 
    ["mime"]=> string(9) "image/png" 
} 

Example 2:

Output:

Width of image: 667
Height of image: 184
Image type: 3
Image attribute: width="667" height="184"

Reference: http://php.net/manual/en/function.getimagesizefromstring.php