php - Prepared statement not executing under lock -


i'm finding can't execute prepared statement under table lock, page locks though command waiting release , have manually kill lock.

this example case: 

mysql_query("lock table tbl write");  $stmt = $mysqli->prepare("insert tbl (id) values (?)"); $stmt->bind_param("i", $nextid); $stmt->execute();  mysql_query("unlock tables");

is there reason why case? before introducing prepared statements worked fine execution without lock.
learning purposes please no comments on why needs locked , auto-incremented id's :)

thank you.

mysql_query $mysqli->prepare

you locking table in connection established mysql_connect
no wonder table got locked in other connections, included 1 created mysqli.


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