200-550 무료 덤프문제 온라인 액세스

What will be the result of the following operation?
$a = array_merge([1,2,3] + [4=>1,5,6]);
echo $a[2];

• A.Parse error
• B.4
• C.3
• D.false
• E.2

What is the output of the following code?
function z($x) { return function ($y) use ($x) { return str_repeat($y, $x); };
}
$a = z(2); $b = z(3); echo $a(3) . $b(2);

• A.33222
• B.22333
• C.222333
• D.33322

CORRECT TEXT
Which PHP function sets a cookie whose value does not get URL encoded when sending it to the browser?

What is the length of a string returned by: md5(rand(), TRUE);

• A.Depends on the value returned by rand() function
• B.64
• C.32
• D.24
• E.16

Given the following code, what is correct?
function f(stdClass &$x = NULL) { $x = 42; }
$z = new stdClass; f($z); var_dump($z);

• A.Error: Typehints cannot be references
• B.Result is NULL
• C.Result is object of type stdClass
• D.Error: Typehints cannot be NULL
• E.Result is 42