PHP Data-URI to file

user_544931 0
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I have a data URI I am getting from javascript and trying to save via php. I use the following code which gives a apparently corrupt image file:

  $data = $_POST['logoImage'];

  $uri = substr($data,strpos($data,",")+1);

  file_put_contents($_POST['logoFilename'], base64_decode($uri));



data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAYAAACNMs 9AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAxklEQVQYlYWQMW7CUBBE33yITYUUmwbOkBtEcgUlTa7COXIVV5RUkXKC5AxU EdyZVD4kyKxkwIrr9vd0c7Oih aopinLNsF6Qkg2XW4XJ7LGFsAAcTV6lF5/jLdbALA9XDAXYfthFQVx OrmqKYK88/7rbbMFksALieTnzu9wDYTj6f70PKsp2kwAiSvjXNcvkWpAfNZkzWa/5a9yT7fdoX7rrB7hYh2fXo9HdjPYQZu3MIU8bYIlW20y0RUlXG2Kpv/vfwLxhTaSQwWqwhAAAAAElFTkSuQmCC

Below the code is the actual image as a Data-URI. 'logoImage' is the string above, and $uri is the string minus 'image/jpeg;base64,'.

data-uri file-io image php
4 Answers

I have another way to do this with PHP.

$img = str_replace(' ','+',$img);
$i = explode(',', $img);
$imgData = array_pop($i);
$newName = 'digital_file/'. rand(10, 16) . '.' . str_replace('/', '.', mime_content_type($img) );
// data:image/png;base64
$imgData = base64_decode($imgData);

Now you can use file_put_contents($newName) to create the image file. Produces a file with a random numerical name (e.g. "123123.image.png"). And of course it has correct mime type.

user_75207710
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