PHP quiz. Consider following code snippet: <pre><code class=

Consider following code snippet:

print_r("Hello World", true);

What will return the function above?

Hello World
true
Nothing
An error will be thrown

Explanation

Syntax:
mixed print_r ( mixed $expression [, bool $return = false ] ) If you would like to capture the output of print_r(), use the return parameter. When this parameter is set to TRUE, print_r() will return the information rather than print it.
Read more: PHP: print_r - Manual