Use of => in PHP

Question

What does this mean in PHP and when is the time to use it?

 =>

Another example.

 foreach ($parent as $task_id => $tod         


        

Answer 1

It is used with associative arrays.

For example,

$gender = array('male' => 'M', 'female' => 'F');

Where $gender['male'] would give you 'M' and $gender['female'] will give you 'F'.