How many methods does the DateTime class have? 

Find correct way of declaring variables:

 What is the default time(in seconds) for which session data is considered valid? 

Which PHP function checks for the existence of DNS records?

Which of the following PHP functions accepts any number of parameters?

What is the description of the PHP error level E_ERROR?

Which of the following PHP statements will store the value 121 in the variable $num?

 What will be the output of the following PHP code? 

<?php

$str = "Hello World";

echo wordwrap($str,5,"<br>\n"); 

?>

What will be the output of the following code? (If say date is 22/06/2013.)

<?php

echo "Today is ".date("F d, Y");

?>

 Which one of the following is the right description for the method getMessage()?