PHP PHP Syntax & Core Language Features 3

Question 1

Which PHP function splits a string into an array based on a delimiter?

Accepted Answer

explode()

Answer

explode() splits a string into an array using a specified delimiter string.

Question 2

What does the trim() function do in PHP?

Accepted Answer

Removes whitespace from the beginning and end of a string

Answer

trim() strips whitespace (or specified characters) from both the start and end of a string.

Question 3

Which superglobal holds data submitted via an HTML form using the POST method?

Accepted Answer

$_POST

Answer

$_POST is the PHP superglobal array that contains data sent via HTTP POST requests.

Question 4

What does the count() function return in PHP?

Accepted Answer

The number of elements in an array or countable object

Answer

count() returns the number of elements in an array or the number of properties in an object.

Question 5

Which PHP keyword is used to include an external file and halt execution if not found?

Accepted Answer

require

Answer

require() includes a file and produces a fatal error (halting execution) if the file cannot be found.

PHP - PHP Programming Language Practice Test