Tell me how can we connect to a mysql database from a php script?
What are the core OOP’s concepts?
What is scope of variable in php?
Write a PHP code to print following number pattern: 123 456 789
What is the default time in seconds for which session data is considered valid?
What is var_dump?
What are the different types of array in php?
Tell us how to redirect a page in php?
Is runtime polymorphism overriding?
1.Where are the sessions storing ? 2.What are the contents of a session file ? 3.If the server is loaded with too many session files there is a possibility of server crash. How can we solve this issue? 4. How does php server identify that the particular session belongs to particular user ? For ex: If two users A and B logged from different machine, separate session files (say 1 and 2) will be created in the server. But how the php knows that 1 belongs to A and 2 belongs to B ?
Explain what does $_files means?
Tell me how can I display text with a php script?
How does the identity operator ===compare two values in PHP?