PHP Quiz

Which of the following is correct about PHP?

• PHP is a recursive acronym for "PHP: Hypertext Preprocessor".

• PHP is a server side scripting language that is embedded in HTML.

• It is used to manage dynamic content, databases, session tracking, even build entire e-commerce sites.

• All of the above.

Which of the following is correct about PHP?

• PHP performs system functions, i.e. from files on a system it can create, open, read, write, and close them.

• PHP can handle forms, i.e. gather data from files, save data to a file, thru email you can send data, return data to the user.

• You add, delete, modify elements within your database thru PHP.

• All of the above.

Is PHP whitespace sensitive?

• true

• false

What is the output of this code?

• The number is incorrect.

• False

• True

• The number is 1

Which of the following is true about php variables?

• All variables in PHP are denoted with a leading dollar sign ($).

• The value of a variable is the value of its most recent assignment.

• Variables are assigned with the = operator, with the variable on the left-hand side and the expression to be evaluated on the right.

• All of the above.

Which of the following type of variables are whole numbers, without a decimal point, like 4195?

• Integers

• Double

• Boolean

• Strings

Which of the following type of variables are floating-point numbers, like 3.14159 or 49.1?

• Integers

• Double

• Boolean

• Strings

Which of the following type of variables have only two possible values either true or false?

• Integers

• Double

• Boolean

• Strings

What is the output of this code?

• Yay! It`s Friday!

• error

• blank

• Yay! It`s friday!

Which of the following type of variables are special type that only has one value: NULL?

• Strings

• Double

• Boolean

• NULL