(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

well, try this:

$query = "SHOW TABLE STATUS LIKE 'tablename'";
$result = mysql_query($query);
$row = mysql_fetch_assoc($result);
var_dump($row);

output:

array(18) {
[...]
["Auto_increment"]=> string(4) "3847"
[...]
}

This will be your next auto_increment ID.