Question

class TestCase
{
    public function multiply($a,$b)
    {
        return $a*$b;
    }
}

I need to use test cases in PHP. Some websites suggests that to use TDD in PHP, we need to install PHPUnit. For now, I need only knowledge of test cases and using them in PHP to test a program. Is that possible for above PHP code(without installing PHPUnit)?
I have WAMPP to run php.

Answer 1

Read this article written by authors of PHPUnit: http://www.phpunit.de/manual/current/en/automating-tests.html

One of the examples from there:

For a newly created array we expect the count() function to return 0. After we add an element, count() should return 1

<?php
    $fixture = array();
    assertTrue(count($fixture) == 0);

    $fixture[] = 'element';
    assertTrue(count($fixture) == 1);

    function assertTrue($condition)
    {
        if (!$condition) {
            throw new Exception('Assertion failed.');
        }
    }
?>

You can reinvent the wheel, but why do you need it?