PHP Communication & Stakeholder Relations 2

Question 1

Which PHP function sends a raw HTTP header to the client before any output is sent?

Accepted Answer

header()

Answer

header() sends a raw HTTP header and must be called before any output is written to the client.

Question 2

What does PHP's mail() function return when the message is successfully accepted for delivery?

Accepted Answer

true

Answer

mail() returns true if the message was successfully accepted for delivery, or false on failure.

Question 3

Which superglobal in PHP contains data submitted via an HTML form using the POST method?

Accepted Answer

$_POST

Answer

$_POST contains key-value pairs of data submitted via HTTP POST, typically from HTML forms.

Question 4

What PHP function is used to encode data as a JSON string for API responses?

Accepted Answer

json_encode()

Answer

json_encode() converts a PHP value to a JSON-encoded string suitable for API communication.

Question 5

In PHP, which cURL option sets the URL for an HTTP request?

Accepted Answer

CURLOPT_URL

Answer

CURLOPT_URL is the cURL option that specifies the URL to fetch in a request.

PHP - PHP Programming Language Practice Test