How to find all the queries in a single function has been executed?

Question

I have created form which contains lots of fields . I am storing the fields in various tables . I have written insert queries for all the tables separately in a single function . I should make sure that all the queries are executed . In case the queries are partially executed i should delete all the values inserted through partial execution . How do i do this ?

Answer 1

You need MySql transactions (not clear what you use, PDO or mysqli_* )

/* START TRANSACTION; */

try {
  foreach ($fields as $field) {
    // INSERT / UPDATE
    /* COMMIT; */
  }
} catch (Exception $e) {
  echo $e;
  /* ROLLBACK; */
}