Not able to retrieve blob files from database where image is not loaded

Question

While trying to retrieve blob values stored in database by using this way,I have problem.Please help me.

Blob value is stored in database in this way.

 $criteria = [
            'lotItemNumber' => '',
            'artistName' =>$_POST['artistName'],
            'classification' =>$_POST['classification'],
            'producedYear' =>$_POST['producedYear'],
            'auctionDate' =>$_POST['auctionDate'],
            'textualDescription' =>$_POST['textualDescription'],
            'estimatedPrice' =>$_POST['estimatedPrice'],
            'image' =>'$temp'



              ];

$stmt = $stmt->insert($criteria);

And tried to retrieve in this way:

echo'<imgsrc="data:image/jpeg;base64,'.base64_encode($row['image']).'width="250" height="250">';

Clicking of this image icon produce

Actual Image is

Answer 1

echo '<img src="data:image/jpeg;base64,'.base64_encode($row['image']).'" width="250" height="250">';
          ^ space here                                                 ^ close quote and add space

Also, inserting values should be changed:

$criteria = [
    //...
    'image' => $temp,  // do not use single quotes
];