1.Attributes in list

test.php 

<?php
list($width, $height, $type, $attr) = getimagesize("1.png");//open as file
echo $width." ".$height." ".$type." ".$attr;
?>

Output

1365 603 3 width="1365" height="603"

OR

code.php

$size_info1 = getimagesize($img);
print_r($size_info1);echo "<br/>";

Output

Array ( [0] => 200 [1] => 200 [2] => 3 [3] => width="200" height="200" [bits] => 8 [mime] => image/png )

OR open as string

Code.php

$data       = file_get_contents($img);
print_r($data);echo "<br/>";

Output: output string of image

?PNG  IHDR???X?? pHYs??9iCCPPhotoshop ICC profilex???J?P??EšV??p'QPl???I[?
......

OR get data from string

code.php

$img = 'stamp.png';
$data       = file_get_contents($img);
$size_info2 = getimagesizefromstring($data);
print_r($size_info2);echo "<br/>";

Output

Array ( [0] => 200 [1] => 200 [2] => 3 [3] => width="200" height="200" [bits] => 8 [mime] => image/png )

 OR Width & Height

$img = imagecreatefrompng('stamp.png');
echo imagesx($img);	//size of image x axis
echo imagesy($img);	//size of image x axis

200 200