تطوير شابتر 8

PHP parser engine can differentiate PHP code in a webpage:

• Short-open Tags

• HTMLscript Tags

• Canonical PHP Tags

• parser engine

• ASP-like Tags

Which of the following is used to write single-line comments in PHP?

• /* */

• #

• //

• Both B and C

How do you write a multi-line comment in PHP?

• Use #

• Use //

• Use /* ... */

Which of the following is NOT a valid way to comment in PHP?

• # This is a comment

• // This is a comment

• /* This is a comment */

• ** This is a comment **

there three different ways to output?

• print

• Display on screen
• Log to console
• printf

• echo

In PHP, how is a variable represented?

• With a dollar sign ($)

• With an at sign (@)

• With a percent sign (%)

Which of the following statements about PHP variables is true?

• PHP variables must be declared before assignment

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

In PHP, can variables be used without declaration before assignment?

• Yes, variables do not need to be declared before assignment

• No, all variables must be declared first

Which of the following is a valid variable assignment in PHP?

• $variable == 5;
• variable: 5;
• $variable = 5;
• $5 = variable;

Themaindata types used to construct variables are:

• Booleans

• dates
• arrays
• integers

• Doubles