在base64中导出图像

Question

I want to create an image in php having the data encoded in base64 Use the code: file_put_contents('export/MyFile.png', base64_decode($img)); I read on the browser, but 7483 should be a larger number. if I open the image was created only half (the other half is transparent) if the variable $img contains a short string, it works. if it contains a string too long the image will be created only partially. why?

PS: if I use

$img = base64_decode($img);
$fp = fopen("export/MyFile.png", "w");
fwrite($fp, $img);
fclose($fp); 

I have the exact same problems

thanks

Answer 1

file_put_contents('export/MyFile.png', base64_decode($img));

Should be:

file_put_contents('export/MyFile.png', base64_encode($img));

If you want to encode the image, you can't use the decode function.