PDO How to insert

<?php

/*  sql
CREATE TABLE `images` (
  `hash` CHAR() NOT NULL PRIMARY KEY,
  `name` VARCHAR(128) NOT NULL UNIQUE,
  `mime` VARCHAR(128) NOT NULL,
  `image` BLOB
)ENGINE=INNODB CHARSET=UTF8MB4 COLLATE=utf8mb4_unicode_ci;
*/

// default message
$message = 'Please select an image.';

// make sure a file was uploaded
if (isset($_FILES['image'])) {

  try {
    // make sure it's really an image (this will throw an error if it's not)
    $image = new Imagick($_FILES['image']['tmp_name']);
    // we'll format the image as a png. you might also want to resize, etc.
    $image->setImageFormat('png');

    // SEE https://gist.github.com/adrian-enspired/385c6830ba2932bc36a2
    $host = '';
    $dbname = '';

    $dsn = "mysql:host={$host};dbname={$dbname};charset=UTF8MB4";
    $user = '';
    $pass = '';
    $options = [
      PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
      PDO::ATTR_EMULATE_PREPARES => false
    ];
    $pdo = new PDO($dsn, $user, $pass, $options);
    $insert = $pdo->prepare("INSERT INTO `images` (`hash`, `name`, `mime`, `image`) VALUES (:hash, :name, :mime, :image)");

    // the "name" is the name the user gave this image.  we can use it for lookups.
    // the "hash" is a checksum for the image (we can use this as a filename to cache the image on disk)
    // the "mime" is the mime-type of the image
    // the "image" is the image blob (binary string; the actual image file)
    $hash = md5($image->getImageBlob());
    $params = [
      'name' => $_FILES['image']['name'],
      'hash' => $hash,
      'mime' => 'image/png',
      'image' => $image->getImageBlob()
    ];

    // execute the INSERT statement
    $insert->execute($params);
    $message = 'Image stored successfully.';
  } catch (ImagickExcpetion $e) {
    $message = 'Invalid file upload. Please upload an image (jpg, png, etc.)';

    // for development, you can see the exception message like so:
    // echo $e; exit(1);
    // uncomment if you want to.
    // NEVER do this on a "live" (production) website.
  } catch (PDOException $e) {
    $message = 'Unable to store your image.';
    // echo $e; exit(1);
  } catch (Exception $e) {
    $message = 'Unknown error.';
    // echo $e; exit(1);
  }
}

// below is the page template
?><!doctype html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Image Upload</title>
  </head>
  <body>
    <h1>Image Upload</h1>
    <p><?= htmlspecialchars($message) ?></p>
    <form action="?" method="post" enctype="multipart/form-data">
      <input type="file" name="image">
      <button>Upload</button>
    </form>
  </body>
</html>