Employee-Managment

Project Using PHP 1:- I USED ALL VALIDATION IN LOGIN PAGE USER WILL LOGIN IF HE/SHE PASS ALL VALIDATION LOGIN PAGE DOESN'T CONNECTED WITH DATA BASE IT'S REQUIRED VALID USER ID AND PASSWORD validations- a)--username sholud be capital latter only and not empty b)--passowed should be minimum of 8 and maximum of 15 char and must contain atleast one uppercase and specail character 2:-EMPLOYEE SCREEN:- IT IS CONNECTED WITH DATABASE 3:-ADD EMPLOYEE SCREEN:-ADD EMPLOYEE SCREEN FOLLOWS ALL VALIDATIONS USED REGEX FOR EMAIL VALIDATION error)-while showing invalid message pop up in add employee screen need to go back to add valid data (<-) i am working on it to remove error xd: