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Zend Certified PHP Engineer Questions 91–95 (page: 20)

Which of the following is NOT a valid function declaration?

CORRECT TEXT
What is the output of the following code?
function increment (&$val)
{
return $val + 1;
}
$a = 1;
echo increment ($a);
echo increment ($a);

Which of the following is true about stream contexts? (Choose 2)

Consider the following code. What can be said about the call to file_get_contents?
$getdata = "foo=bar";
$opts = array('http' =>
array(
'method' => 'POST',
'header' => 'Content-type: application/x-www-form-urlencoded',
'content' => $getdata
)
);
$context = stream_context_create($opts);
$result = file_get_contents('http://example.com/submit.php', false, $context);

What function can be used to retrieve an array of current options for a stream context?