Correct Answer : Option (B)
<?php $var = 'a'; $VAR = 'b'; echo "$var$VAR"; ?>
Correct Answer : Option (D)
Correct Answer : Option (C)
Correct Answer : Option (A)
$a = array( 'a', 3 => 'b', 1 => 'c', 'd' );
<?php $a = array( null => 'a', true => 'b', false => 'c', 0 => 'd', 1 => 'e', '' => 'f' ); echo count($a), "\n"; ?>
<?php define("Hi","Hello! How are you ?"); echo constant("Hi"); ?>