Which magic method is used to implement overloading in PHP? 

Which one of the following property scopes is not supported by PHP?

The process of creating an object of a class is called:

 Which one of the following regular expression matches any string containing zero or one p?
 

 Since which version of PHP was the directive max_file_limit available. 

 What will be the output of following php code?

<?php
$a = "hello";
if (strlen($a))
   print strlen($a);
else
   print "hi";
?>

Which PHP function is used to filter several variables with the same or different filters?

What will be the output of the following PHP code?

$value = 'car';

$result = filter_var($value, FILTER_VALIDATE_BOOLEAN, FILTER_NULL_ON_FAILURE);

Which one of the following filter is used to filter several variables with the same or different filters? 

What is the output of the following PHP code?

<?php

$stringvar1 = 'Raghav';

$stringvar2 = 'my name is: $stringvar1';

echo $stringvar2;

?>