$statement = $database->prepare('INSERT INTO favorite_category (id_users, category_id) values(:id, :category_id)'); $id = 3; $categoryID = 10; $statement->bindParam(':id', $id); $statement->bindParam(':category_id', $categoryID); $statement->execute(); $statement->bindValue(':id', 3); $statement->bindValue(':category_id', 10); $statement->execute(); bindParam()は変数を入れないとエラーが出る。bindValue()は値を直接入れても、
![bindParam()とbindValue()の違い - Qiita](https://cdn-ak-scissors.b.st-hatena.com/image/square/c773c9aaf49bf7f9d46f5c81050dfc17444aad30/height=288;version=1;width=512/https%3A%2F%2Fqiita-user-contents.imgix.net%2Fhttps%253A%252F%252Fcdn.qiita.com%252Fassets%252Fpublic%252Farticle-ogp-background-9f5428127621718a910c8b63951390ad.png%3Fixlib%3Drb-4.0.0%26w%3D1200%26mark64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZ3PTkxNiZoPTMzNiZ0eHQ9YmluZFBhcmFtJTI4JTI5JUUzJTgxJUE4YmluZFZhbHVlJTI4JTI5JUUzJTgxJUFFJUU5JTgxJTk1JUUzJTgxJTg0JnR4dC1jb2xvcj0lMjMyMTIxMjEmdHh0LWZvbnQ9SGlyYWdpbm8lMjBTYW5zJTIwVzYmdHh0LXNpemU9NTYmdHh0LWNsaXA9ZWxsaXBzaXMmdHh0LWFsaWduPWxlZnQlMkN0b3Amcz0xYzczOTI1OTZlY2Y0OGRjODc4YThjYjdiNjZhOGU3NQ%26mark-x%3D142%26mark-y%3D112%26blend64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZ3PTYxNiZ0eHQ9JTQwX2RvemVuXyZ0eHQtY29sb3I9JTIzMjEyMTIxJnR4dC1mb250PUhpcmFnaW5vJTIwU2FucyUyMFc2JnR4dC1zaXplPTM2JnR4dC1hbGlnbj1sZWZ0JTJDdG9wJnM9YmM3ZTA4ZDdmZGE2MjRhOGViZDY1ZDU2MjRhNmY3NTU%26blend-x%3D142%26blend-y%3D491%26blend-mode%3Dnormal%26s%3D59ec67adc8e887354a7da3c443d7898c)