Difference between “as $key => $value” and “as $value” in PHP foreach

Question

I have a database call and I\'m trying to figure out what the $key => $value does in a foreach loop.

The reason I ask is because both these

Answer 1

here $key will contain the $key associated with $value in $featured. The difference is that now you have that key.

array("thekey"=>array("name"=>"joe"))

here $value is

array("name"=>"joe")

$key is "thekey"