$var = (10 % 2 == 0) ? true:false; What is the output of $var?

Which are PHP comparison operators?

The practice of combining strings and variables into one string is called:

Which PHP math function would you use to generate a random integer?

Function to display information about variables in a simple, readable format?

Which one checks if a value exists in an array?

How to check if a variable is empty?

Which is incorrect with respect to '!==' and '==!'?

Which data types are supported in PHP? Check all the apply.

.... are like variables except that once they are defined they cannot be changed or undefined.

.... is a PHP super global variable which holds information about headers, paths, and script locations.