Search an array for a matching string

Question

I am looking for away to check if a string exists as an array value in an array is that possible and how would I do it with PHP?

Answer 1

Say we have this array:

 'foo',
  2 => 'bar',
  3 => 'baz',
);
?>

If you want to check if the element 'foo' is in the array, you would do this

If you want to get the array index of 'foo', you would do this:

Also, a simple rule for the order of the arguments in these functions is: "needle, then haystack"; what you're looking for should be first, and what you're looking in second.