Question

Take the following HTML form.

1
2
3
4

<form id="form" name="form" method="post">
<input type="text" name="number" value="0" />
<input type="submit" />
</form>

What is the output of the following PHP code after the above form has been submitted, and why?

1
2
3
4
5

if ($_POST['number'] === 0) {
        echo 'number is zero';
} else {
        echo 'number is not zero';
}

Question

What does the $count variable equal after each of these loops?

1
2
3
4
5
6

// Loop 1 - while
$count = 0;
 
while ($count < 0) {
    ++$count;
}

1
2
3
4
5
6

// Loop 2 - do while
$count = 0;
 
do {
    ++$count;
} while  ($count < 0);

Question

What does the following code do?

define("MY_CONSTANT", array(1,2,3,4,5));

Question

What is the difference between these two lines of code and can you produce the background code used for them?

1
2
3
4
5

// Line 1
$MyClass->MyMethod();
 
// Line 2
MyClass::MyMethod();

Question

Write a PHP script that will print out the following text in the correct diamond shape.

1
2
3
4
5
6
7
8
9
10

    *
   ***
  *****
 *******
*********
*********
 *******
  *****
   ***
    *

Question

What does the following code snipped print?

1
2
3

$a = 5;
$b = 'a';
print $$b;