Zend 200-550 - Zend Certified PHP Engineer
What would be the output of the following code?
namespace MyFramework\DB;
class MyClass {
static function myName() {
return __METHOD__;
}
}
print MyClass::myName();
When uploading a file to a PHP script using the HTTP PUT method, where would the file data be found?
What is cached by an opcode cache?
What is the output of the following code?
class Bar {
private $a = 'b';
public $c = 'd';
}
$x = (array) new Bar();
echo array_key_exists('a', $x) ? 'true' : 'false';
echo '-';
echo array_key_exists('c', $x) ? 'true' : 'false';
How should class MyObject be defined for the following code to work properly? Assume $array is an array and MyObject is a user-defined class.
$obj = new MyObject();
array_walk($array, $obj);
What super-global should be used to access information about uploaded files via a POST request?
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 is the output of the following code?
class Number {
private $v;
private static $sv = 10;
public function __construct($v) { $this->v = $v; }
public function mul() {
return static function ($x) {
return isset($this) ? $this->v*$x : self::$sv*$x;
};
}
}
$one = new Number(1);
$two = new Number(2);
$double = $two->mul();
$x = Closure::bind($double, null, 'Number');
echo $x(5);
What function can reverse the order of values in an array so that keys are preserved?
What is the output of the following code?
function fibonacci (&$x1 = 0, &$x2 = 1)
{
$result = $x1 + $x2;
$x1 = $x2;
$x2 = $result;
return $result;
}
for ($i = 0; $i < 10; $i++) {
echo fibonacci() . ',';
}
