Call to a member function bind_param() on boolean

Question

I've been trying to fix this error for 2 hours, but no use. Here's my code:

$stmt = $conn->prepare("INSERT INTO posts (post_title, post_content, post_timestamp, post_author, post_intro, link, meta_k, meta_d) VALUES (?,?,?,?,?,?,?,?;");
$stmt->bind_param("ssisssss", $post_title, $post_content, $post_timestamp, $post_author, $post_intro, $link, $meta_k, $meta_d);
$stmt->execute();

Answer 1

This has been answered many times on here. The problem in your instance is that you have a typo in your query:

$stmt = $conn->prepare("INSERT INTO posts (post_title, post_content, post_timestamp, post_author, post_intro, link, meta_k, meta_d) VALUES (?,?,?,?,?,?,?,?;");

should be:

$stmt = $conn->prepare("INSERT INTO posts (post_title, post_content, post_timestamp, post_author, post_intro, link, meta_k, meta_d) VALUES (?,?,?,?,?,?,?,?)");
// typo is at the carat:                                                                                                                                   ^

Answer 2

there is an extra ';' in your VALUES()