Basic php related questions. Write a code that with connect SQL database with php. How cache works? What is session? Write a loop that will show all the values from the database.

Interview Process was good, they had total 2 rounds. 1st round was technical interview, 2nd round a senior asked me about the projects I worked in my carrier and current company. Then a week later I got an call from HR that I have been selected and on the same call they discussed my salary and said they will process my offer letter as it needs to approved from New Zealand office. Also asked me to resign from my current company as soon as possible. But that's it I never received a call again about my application. I waited a month for them to come back to me but no communication at all. What horrible company. Thank God I did not resigned from my current company.