What is output of the following code. $arr = "a"; $arr[0]="b"; echo $arr; echo $arr[0];

Correct way to include the file 'time.inc' ?

How do you kill or destroy a session?

To ensure that a given object has a particular set of methods, you must provide a method list in the form of an ________ and then attach it as part of your class using the ________ keyword.

How to check if a directory exists?

Best way to iterate and modify every element of an array using PHP 5?

How to capture exception's message? Note: consider Exception $e.

Which keyword is used to inherit our subclass from a superclass?

What's the output? $a$a = 1; $b$b = 2; echo '$a$a + $b$b';

Which function will attempt to return a timestamp, in microseconds?

Which are valid float values?