What is the output of these line of codes?

Function to read the contents of a file into a string?

$message vs. $$message . what is the difference

What is the opening tag for PHP

Keyword to create object of a class in PHP?

Value returned by the preg_match function in php?

Which are not considered Boolean false?

Best approach to parse HTML and extract structured information from it?

Best way to convert one date format into another; portable for all PHP versions?

Which statement is incorrect, with regards to inheritance in PHP?

Is the ||= operator present in PHP?