Solution to Question 3-1
Everything renders as text; there is no code.
Solution to Question 3-2
HTML markup.
Solution to Question 3-3
By using two slash (//) marks.
Solution to Question 3-4
Single-line comments, which are indicated by two slash (//) marks, and multiline comments, which are indicated by an asterisk and slash. Use (/*) to open a multiline comment and (*/) to close it.
Solution to Question 3-5
A semicolon (;) ends all statements in PHP.
Solution to Question 3-6
A value.
Solution to Question 3-7
By using the following form: $variable_name = value;
Solution to Question 3-8
Yes.
Solution to Question 3-9
They allow you to group code chunks together and execute them by their names.
Solution to Question 3-10
A super global.
Solution to Question 3-11
By using the backslash (\).
Solution to Question 3-12
It compares two strings, including case.
Solution to Question 3-13
Concatenation.
Solution to Question 3-14
A string.
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