200-500 試験問題を無料オンラインアクセス

What is the output of the following script?
1 <?php
2 function ratio ($x1 = 10, $x2)
3 {
4 if (isset ($x2)) {
5 return $x2 / $x1;
6 }
7 }
8
9 echo ratio (0);
1 0 ?>

• A.A warning, because $x2 is not set
• B.A floating-point overflow error
• C.A warning, because $x1 is not set
• D.An integer overflow error
• E.0

You work for a shared hosting provider, and your supervisor asks you to disable user scripts to dynamically load PHP extensions using the dl() function. How can you do this?
(Choose 2)

• A.Write a custom function called dl(), save it under the name prepend.inc and then set the auto_prepend_file directive to prepend.inc in php.ini.
• B.Add dl to the current value of disable_classes in the server's php.ini configuration file.
• C.Add dl to the current value of disable_functions in the server's php.ini configuration file.
• D.Set enable_dl to Off in the server's php.ini configuration file.

Which of the following function signatures is correct if you want to have classes automatically loaded?

• A.function __autoload($class_name)
• B.function autoload($class_name)
• C.function __autoload($class_name, $file)
• D.function autoload($class_name, $file)
• E.function _autoload($class_name)

Which of the following code snippets is correct? (Choose 2)
a)
interface Drawable {
abstract function draw();
}
b)
interface Point {
function getX();
function getY();
}
c)
interface Line extends Point {
function getX2();
function getY2();
}
d)
interface Circle implements Point {
function getRadius();
}

• A.b)
• B.c)
• C.a)
• D.d)

Which of the following can be registered as entry points with a SoapServer instance
(choose 3)

• A.All methods from a class
• B.A single method from a class
• C.A single function
• D.All classes defined in a script
• E.Multiple functions at once