PHP PHP Syntax & Core Language Features 2

Question 1

Which comparison operator in PHP checks both value AND type equality?

Accepted Answer

===

Answer

The strict equality operator === returns true only if both operands have the same value and the same data type.

Question 2

Which loop in PHP is guaranteed to execute its body at least once?

Accepted Answer

do-while

Answer

The do-while loop executes the body first, then checks the condition, ensuring at least one execution.

Question 3

What does the array_push() function do in PHP?

Accepted Answer

Adds one or more elements to the end of an array

Answer

array_push() appends one or more elements to the end of an array and returns the new count.

Question 4

Which PHP function converts a string to all lowercase letters?

Accepted Answer

strtolower()

Answer

strtolower() converts all alphabetic characters in a string to lowercase.

Question 5

What is the default value of an uninitialized variable in PHP?

Accepted Answer

NULL

Answer

In PHP, an uninitialized variable has the value NULL and type NULL.

PHP - PHP Programming Language Practice Test