PHP | getimagesize() Function
The getimagesize() function in PHP is an inbuilt function which is used to get the size of an image. This function accepts the filename as a parameter and determines the image size and returns the dimensions with the file type and height/width of image.
Syntax:
array getimagesize( $filename, $image_info )
Parameters: This function accepts two parameters as mentioned above and described below:
- $filename: It is a mandatory parameter which specifies the image file name.
- $image_info: It is an optional parameter which allows you to extract some extended information from the image file such as the different JPG APP markers as associative array.
Return Value: It returns the dimensions along with the file type and a height/width text string.
Exceptions:
- The getimagesize() function returns zero for width and height if the formats which may contain no image or multiple images.
- The imageinfo parameter only supports JFIF files.
- The getimagesize() function will generate an error of level E_WARNING, if accessing the filename image is impossible.
- The getimagesize() will generate an error of level E_NOTICE, if there is any error in reading.
Below programs illustrate the getimagesize() function in PHP:
Note: The image (geeks.png) given below used in the following program.
Program 1:
<?php
$image_info = getimagesize ( "geeks.png" );
print_r( $image_info );
?>
|
Output:
Array ( [0] => 667
[1] => 184
[2] => 3
[3] => width="667" height="184"
[bits] => 8
[mime] => image/png )
Program 2:
<?php
list( $width , $height , $type , $attr ) = getimagesize ( "geeks.png" );
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.getimagesize.php
PHP is a server-side scripting language designed specifically for web development. You can learn PHP from the ground up by following this PHP Tutorial and PHP Examples.
Last Updated :
01 Aug, 2021
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