How long is a php session valid?
Explain scalar type declarations in php7?
What is strlen function in php?
What is difference between require_once(), require(), include()?
Explain me what is the difference between explode() and split() functions?
Tell us how to create an array of a group of items inside an html form?
What does php do?
Is not null in php?
What are the three parts of an http request?
What is php array function?
What is use of in_array() function in php?
What is a php namespace?
Why shouldn't I use mysql_* functions in php?