(PHP 5 >= 5.4.0, PHP 7, PHP 8)
getimagesizefromstring — Get the size of an image from a string
Identical to getimagesize() except that getimagesizefromstring() accepts a string instead of a file name as the first parameter.
See the getimagesize() documentation for details on how this function works.
stringThe image data, as a string.
image_infoSee getimagesize().
See getimagesize().
Example #1 getimagesizefromstring() example
<?php
$img = '/path/to/test.png';
/ Open as a file
$size_info1 = getimagesize($img);
/ Or open as a string
$data = file_get_contents($img);
$size_info2 = getimagesizefromstring($data);
?>getimagesizefromstring function for < 5.4
<?php
if (!function_exists('getimagesizefromstring')) {
function getimagesizefromstring($string_data)
{
$uri = 'data://application/octet-stream;base64,' . base64_encode($string_data);
return getimagesize($uri);
}
}
?>Just a quick comment on the solution by imageman for versions < 5.4 you will need to enable allow_url_fopen in order to use the data wrapper.