how to create a base64encoded string from image resource

Question

I have sent a base64 encoded string via AJAX to PHP and created an image resource with imagecreatefromstring - all is fine.

Now I want to get the base64 encoded string after resizing te image, but i CANT find a function to get the base64encoded string.

@mishu of course... i tried base64encode($imageres) and even ob_contents etc. but it doesnt work... — netzaffin, Dec 14 '11 at 10:08
You can use [resample](http://stackoverflow.com/a/29250930/4058484) to get the base64 encoded string after resizing — eQ19, May 10 '16 at 16:11

Michael Robinson · Accepted Answer · 2020-02-20T20:02:49.537

54

Taken from http://www.php.net/manual/en/book.image.php#93393

$image = imagecreatefromstring($file);

// start buffering
ob_start();
imagepng($image);
$contents =  ob_get_clean();

echo "<img src='data:image/png;base64,".base64_encode($contents)."' />";

imagedestroy($image);

edited Feb 20 '20 at 20:02

answered Dec 14 '11 at 10:05

Michael Robinson

29,278
12
104
130

Hmm, I'm sure i tried this before! Now it works. Thank you very much. – netzaffin Dec 14 '11 at 10:13
@netzafin: I know that feeling ;) – Michael Robinson Dec 14 '11 at 10:14
3

[According to the manual](https://secure.php.net/manual/en/function.ob-get-clean.php) `$contents = ob_get_clean();` is a one-liner for what `ob_get_contents` and `ob_end_clean` does. – totymedli Mar 24 '18 at 03:10

how to create a base64encoded string from image resource

1 Answers1

Linked