200-550 Zend Certified PHP Engineer Question and Answers

What will the following function call print?

printf('%010.6f', 22);

Given the following code, what is correct?

function f(stdClass &$x = NULL) { $x = 42; }

$z = new stdClass;

f($z);

var_dump($z);

What can prevent PHP from being able to open a file on the hard drive (Choose 2)?

Which string will be returned by the following function call?

$test = '/etc/conf.d/wireless';

substr($test, strrpos($test, '/')); // note that strrpos() is being called, and not strpos()

Which of the following filtering techniques prevents all cross-site scripting (XSS) vulnerabilities?