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 :
<?php
$img =
$data = file_get_contents ( $img );
$info = getimagesizefromstring( $data );
var_dump( $info );
?>
|
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:
<?php
$img =
$data = file_get_contents ( $img );
list( $width , $height , $type , $attr ) = getimagesizefromstring( $data );
echo "Width of image: " . $width . "<br>" ;
echo "Height of image: " . $height . "<br>" ;
echo "Image type: " . $type . "<br>" ;
echo "Image attribute: " . $attr ;
?>
|
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
Last Updated :
26 Aug, 2019
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