Zend Certification

Zend Certification

Question: How can you modify the copy of an object during a clone operation?
A
Put the logic in the object's constructor to alter the values

B
Implment your own function to do object copying

C
Implement the object's __clone() method

D
Implement __get() and __set() methods with the correct logic

E
Implement the __copy() method with the correct logic

Note: Not available
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Question: What is the primary difference between a method declared as static and a normal method?
A
Static methods can only be called using the :: syntax and never from an instance

B
Static methods do not provide a reference to $this

C
Static methods cannot be called from within class instances

D
Static methods don't have access to the self keyword

E
There is no functional difference between a static and non-static method

Note: Not available
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Question: What is the output of the following script?<?php

class ClassOne {
  protected $a = 10;

  public function changeValue($b) {
    $this->a = $b;
  }
}

class ClassTwo extends ClassOne {

  protected $b = 10;

  public function changeValue($b) {
    $this->b = 10;
    parent::changeValue($this->a + $this->b);
  }

  public function displayValues() {
    print "a: {$this->a}, b: {$this->b}\n";
  }
}

$obj = new ClassTwo();

$obj->changeValue(20);
$obj->changeValue(10);

$obj->displayValues();

?>
Aa: 30, b: 30

Ba: 30, b: 20

Ca: 30, b: 10

Da: 20, b: 20

Ea: 10, b: 10

Note: Not available

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Question: The ______ keyword is used to indicate an incomplete class or method, which must be further extended and/or implemented in order to be used.
A
final

B
protected

C
incomplete

D
abstract

E
implements

Note: Not available
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Question: To ensure that a given object has a particular set of methods, you must provide a method list in the form of an ________ and then attach it as part of your class using the ________ keyword.
A
array, interface

B
interface, implements

C
interface, extends

D
instance, implements

E
access-list, instance

Note: Not available
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Question: Type-hinting and the instanceof keyword can be used to check what types of things about variables?
A
If a particular child class extends from it

B
If they are an instance of a particular interface

C
If they are an abstract class

D
If they have a particular parent class

E
If they are an instance of a particular class

Note: Not available
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Question: In PHP 5's object model, a class can have multiple ______ but only a single direct ________.
A
None

B
interfaces, child

C
children, interface

D
interfaces, parent

E
parents, interface

Note: Not available
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Question: What three special methods can be used to perform special logic in the event a particular accessed method or member variable is not found?
A
__get($variable)

B
__call($method, $params)

C
__get($method)

D
__set($variable, $value)

E
__call($method)

Note: Not available
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Question: The _______ method will be called automatically when an object is represented as a string.
A
getString()

B
__get()

C
__value()

D
__toString()

E
__getString()

Note: Not available
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Question: When an object is serialized, which method will be called, automatically, providing your object with an opportunity to close any resources or otherwise prepare to be serialized?
A
__destroy()

B
__serialize()

C
__destruct()

D
__shutdown()

E
__sleep()

Note: Not available
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Question: How can you modify the copy of an object during a clone operation?

Question: What is the primary difference between a method declared as static and a normal method?

Question: The ______ keyword is used to indicate an incomplete class or method, which must be further extended and/or implemented in order to be used.

Question: To ensure that a given object has a particular set of methods, you must provide a method list in the form of an and then attach it as part of your class using the keyword.

Question: Type-hinting and the instanceof keyword can be used to check what types of things about variables?

Question: In PHP 5's object model, a class can have multiple but only a single direct __.

Question: What three special methods can be used to perform special logic in the event a particular accessed method or member variable is not found?

Question: The _______ method will be called automatically when an object is represented as a string.

Question: When an object is serialized, which method will be called, automatically, providing your object with an opportunity to close any resources or otherwise prepare to be serialized?

Question: How can you modify the copy of an object during a clone operation?

Question: What is the primary difference between a method declared as static and a normal method?

Question: The ______ keyword is used to indicate an incomplete class or method, which must be further extended and/or implemented in order to be used.

Question: To ensure that a given object has a particular set of methods, you must provide a method list in the form of an ________ and then attach it as part of your class using the ________ keyword.

Question: Type-hinting and the instanceof keyword can be used to check what types of things about variables?

Question: In PHP 5's object model, a class can have multiple ______ but only a single direct ________.

Question: What three special methods can be used to perform special logic in the event a particular accessed method or member variable is not found?

Question: The _______ method will be called automatically when an object is represented as a string.

Question: When an object is serialized, which method will be called, automatically, providing your object with an opportunity to close any resources or otherwise prepare to be serialized?

Question: To ensure that a given object has a particular set of methods, you must provide a method list in the form of an and then attach it as part of your class using the keyword.

Question: In PHP 5's object model, a class can have multiple but only a single direct __.