What will be the output of the following PHP 7.1 code?

var_dump((bool) -1);

var_dump((bool) 1.5e5);

var_dump((bool) "false");

?>

$x = array('x' => 'Adam', 'y' => 'Binca'); $y = array('x' => 'Avin', 'y' => 'Beth', 'z' => 'Chris'); $z = $y + $x; $x += $y; var_dump($x); ?>

Which of the following conditions must be followed by functions that are declared with void as their return type? i) Omit their return statement. ii) Use an empty return statement.

class Example_Exp extends Exception {} class Check { public function checking() { try { try { throw new Example_Exp( } catch (Example_Exp $ex) { throw $ex; } } catch (Exception $ex) { var_dump($ex->getMessage()); } } } $bar = new check; $bar->checking(); ?>

$x = 'New '; $y = $x . 'Example '; echo $y; $x = 'New '; $x .= 'Example '; echo $x; ?>

$example = function($x) { return $x * 3; }; $num = range(2, 6); $new_num = array_map($example, $num); print implode( )?>

How to install pecl extensions?

What is the name of default class for all classes

Difference between a method declared as static and a normal method?

If the method is an abstract, class must be:

Which subversion of PHP5 adds short array syntax?