title: PHP: Converting blob content to image
body: <p>Although there are couple of similar threats, my question is not answered.</p>
  
  <p>I have extracted blob content from an oracle database that looks like this:</p>
  
  <p>bab216da9a85b9df1b6f4fdd84629838e71919a00645e2a966bb6851ac6dd804da27988672ca0f0</p>
  
  <p>How can I convert it to a jpeg? What decoding function do I need?</p>