PHP Questions

Question

Take the following HTML form.

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

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?

Question

What does the following code do?

Question

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

// 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.

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

Question

What does the following snippet print and why?

value++;
}
 
$a = new MyClass();
$a->value = 1;
doSomething($a);
 
print $a->value;

Question

Given the following form:

How would you get hold of the value of the input box after the form is submitted?

Question

Consider the following:

function doSomething(&$val) {
    $val++;
}
 
$a = 1;
doSomething($a);

What does the variable $a now equal?