PHP PHP Syntax & Core Language Features

Question 1

Which symbol is used to prefix all variable names in PHP?

Accepted Answer

$

Answer

In PHP, all variable names must begin with a dollar sign ($), such as $name or $count.

Question 2

Which PHP construct is used to output text directly to the browser?

Accepted Answer

echo

Answer

echo is a language construct in PHP used to output one or more strings to the browser.

Question 3

What character is used to end a PHP statement?

Accepted Answer

;

Answer

PHP statements must end with a semicolon (;), similar to C and Java.

Question 4

Which superglobal array holds data submitted via an HTML form using GET?

Accepted Answer

$_GET

Answer

$_GET is the PHP superglobal that contains all URL query string parameters passed via GET requests.

Question 5

What does the isset() function check in PHP?

Accepted Answer

If a variable is set and not NULL

Answer

isset() returns true if the variable exists and its value is not NULL.

PHP - PHP Programming Language Practice Test