回答です

answer/Ex06_image_regist.php

@@ -0,0 +1,39 @@
+<?php
+// Ex07_query.php
+
+$dsn = "mysql:host=localhost;dbname=employee_db;charset=utf8";
+$username = "rezouser";
+$password = "Rezo_0000";
+
+try {
+    if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
+        throw new Exception("POSTメソッドで送信してください。");
+    }
+
+    if (!isset($_FILES['image']) || $_FILES['image']['error'] !== UPLOAD_ERR_OK) {
+        throw new Exception("画像ファイルが正しくアップロードされていません。");
+    }
+
+    $filename = $_FILES['image']['name'];
+    $mime = $_FILES['image']['type'];
+    $imageData = file_get_contents($_FILES['image']['tmp_name']);
+
+    $pdo = new PDO($dsn, $username, $password);
+    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+
+    $sql = "INSERT INTO images (filename, mime, image) VALUES (:filename, :mime, :image)";
+    $stmt = $pdo->prepare($sql);
+    $stmt->bindParam(':filename', $filename, PDO::PARAM_STR);
+    $stmt->bindParam(':mime', $mime, PDO::PARAM_STR);
+    $stmt->bindParam(':image', $imageData, PDO::PARAM_LOB);
+    $stmt->execute();
+
+    $lastInsertId = $pdo->lastInsertId();
+    echo "画像登録成功。画像ID: " . $lastInsertId;
+} catch (Exception $e) {
+    echo "エラー: " . $e->getMessage();
+} finally {
+    if (isset($pdo)) {
+        $pdo = null;
+    }
+}