PHP Questions

PHP questions suitable for use in interviews or just for fun.

PHP Question: Post Variables

Question Take the following HTML form.

philipnorton42 Fri, 07/29/2011 - 17:10

PHP Question: While And Do While Looping

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

philipnorton42 Mon, 05/16/2011 - 22:09

PHP Question: Defining Constants

What does the following code do?

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

philipnorton42 Mon, 05/09/2011 - 08:59

PHP Question: Class Methods

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

philipnorton42 Wed, 05/04/2011 - 21:19

PHP Question: PHP Script Shape

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

PHP Question: Print Object

The following code was executed.

philipnorton42 Thu, 04/28/2011 - 11:29

What does the following snippet print and why?

Given the following form:

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

Consider the following:

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

What does the variable $a now equal?

What does the following code snipped print?

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