Searching Multidimensional Array for Value PHP

I feel like this is a pretty easy question, but I can't seem to find the answer anywhere.

$array = ('colors' => array('red','orange'),
          'numbers'=> array('one','two')
         );

How do a perform a search on the $array to determine if colors contai开发者_如何学Cns a value of red?

Thanks in advance.

---

There is no built in array function to do this. Thes simplest way to to it in the specific case youve given is to do:

$hasRed = (isset($array['colors'] && in_array('red', $array['colors']));

---

Simplest way would be;

$hasRed = isset($array['colors']['red']);

---

Try this:

array_search("red", $array[ "colors" ])