Error in Writing to Image file from PHP

Question

I am attempting to write to an image file from a blob.

 if($_POST[\'logoFilename\'] != \'undefined\'){
  $logoFile = fopen($_POST[\'logoFilename\'], \'w\') o         


        

Answer 1

Your "Blob" is really a Data URI:

data:[][;charset=][;base64],

Since you only want the decoded data part, you have to do

file_put_contents(
    'image.jpg',
    base64_decode( 
        str_replace('data:image/jpeg;base64,', '', $blob)
    )
);

But since PHP natively supports data:// streams, you can also do (thanks @NikiC)

file_put_contents('image.jpg', file_get_contents($blob));

If the above doesnt work, you can try with GDlib:

imagejpg(
    imagecreatefromstring(
        base64_decode( 
            str_replace('data:image/jpeg;base64,', '', $blob)
        )
    ), 
    'image.jpg'
);