In this article i am gone to share Coursera Course: Building Database Applications in PHP  Week 1 Practice Quiz Answer with you..

Building Database Applications in PHP Week 1 Practice Quiz Answer

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PHP Objects

Question 1) In Object Oriented programming, what is another name for the “attributes” of an object?

• fields
• messages
• forms
• portions
• methods

Question 2 At the moment of creation of a new object, PHP looks at the _________ definition to define the structure and capabilities of the newly created object

• constructor
• cache
• method
• instance
• class

Question 3) Which of the following is not a good synonym for ‘class’ in PHP?

• pattern
• template
• blueprint
• direction

Question 4) What does the following code accomplish:

$now = new DateTime();

• Using the DateTime template make a new object and assign it to $now
• Copy the value from the DateTime variable to the variable $now
• Clear out all the data in the DateTime variable and put the old values for the data in $now
• Subtract the value of the new variable from the value in the DateTime variable and put the difference in $now

Question 5) What is the syntax to look up the fullname attribute in an object stored in the variable $colleen

• $colleen->fullname
• $colleen::fullname
• $colleen.$fullname
• $colleen[“fullname”]
• $colleen->$fullname

Question 6) Which of these statements is used to indicate that class A will inherit all the features of class B.

• class A extends B
• class A instanceOf B
• class A inherits B
• A->features = B->features
• A=B++

Question 7) Which of the class member visibility settings indicates that a member variable can be accessed within a class and all sub-classes but not outside of the class.

• protected
• subclass
• limited
• private
• public

Question 8) What does the “::” operator do in PHP?

• Allows us to access private methods of a class from outside of the class
• Allows us to inherit information from one class to another
• Allows us to access member functions from an object
• Allows us to access constants and static items from a class