(mysql, php) How to get auto_increment field value before inserting data?

Question

I\'m uploading image file to storage server. Before uploading I should compose filename, which contains AUTOINCREMENT VALUE in it (for example, 12345_filename.jpg).

Answer 1

If you are using PDO, here is a "single line" solution :

$nextId = $db->query("SHOW TABLE STATUS LIKE 'tablename'")->fetch(PDO::FETCH_ASSOC)['Auto_increment'];

where tablename is replaced by your table.