Synchronization between threads

[john j123]

My question is how to prevent a script in the PHP code to do its work until another thread finish working with another script (that it have)
Hint: I want to prevent any php page to access the database while another script updates values in that database.
Thank you

[helimeef]

If script1.php is waiting on script2.php, have script2.php call script1.php after it's done executing.

[Dormilich]

I want to prevent any php page to access the database while another script updates values in that database.

usually the database takes care of that itself by locking the table (row) in operation.