Finals Lecture 1: PHP

Question 1

In PHP, GET and POST are two different methods used to…

Answer 1

send data from a form to a server.

Question 2

Data is appended to the URL.

Answer 2

GET Method

Question 3

Limited amount of data can be sent because it is included in the URL.

Answer 3

GET Method

Question 4

Data is visible to everyone in the URL, including the user.

Answer 4

GET Method

Question 5

Not suitable for sensitive data.

Answer 5

GET Method

Question 6

Example of a form using the GET method in HTML:

In this example, if the user enters “john” into the text field and submits the form, the URL may look like this: process.php?username=john

Answer 6

<form>
<input></input>
<input></input>
</form>

Question 7

In PHP, you can access the data sent via GET using the…

Answer 7

$_GET superglobal array;

For example:
$username = $_GET[‘username’];

Question 8

Data is included in the body of the HTTP request.

Answer 8

POST Method

Question 9

Can send larger amounts of data.

Answer 9

POST Method

Question 10

Data is not visible in the URL.

Answer 10

POST Method

Question 11

Suitable for sensitive data.

Answer 11

POST Method

Question 12

Example of a form using the POST method in HTML:

Answer 12

<form>
<input></input>
<input></input>
</form>

Question 13

In PHP, you can access the data sent via POST using the…

Answer 13

$_POST superglobal array;

For example:
$username = $_POST[‘username’];

Question 14

In many cases, the choice between GET and POST depends on the…

Answer 14

nature of the data being transmitted.

Question 15

Use GET when you are ___, and use POST when you are ___ or ___.

Answer 15

retrieving data from the server; sending sensitive information; making changes on the server

Question 16

In PHP, the ___ is used to check if a variable is set and is not null. It returns true if the variable exists and has a value other than null; otherwise, it returns false.

Answer 16

isset() function;

if (isset($name))

Question 17

This function is commonly used to prevent errors that might occur if you try to use a variable that hasn’t been defined or initialized.

Answer 17

isset() function;

if (isset($name))

Question 18

Here’s a basic example of using isset() function:

Answer 18

php
Copy code
// Check if the variable $name is set
if (isset($name)) {
echo “The variable $name is set and not null.”;
} else {
echo “The variable $name is either not set or null.”;
}