Case insensitive array search

Question

I have an array like this:

$array = Array ( 0 => 'oooo', 1 => 'no', 2 => 'mmmm', 3 => 'yes' ); 

I would like to find the word yes. I know about array_search() , but I would like to combine yes, yes and yes.

How can i do this?

Answer 1

 array_search(strtolower($search), array_map('strtolower', $array)); 

Answer 2

You can use in_array() instead of array_search() .

 $response = in_array('yes', array_map('strtolower', $array)); 

Answer 3

Edit: Sorry, I see this for values, see http://php.net/manual/en/function.array-change-key-case.php#88648

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For keys:

 $a = array('YES', 'yes', 'Yes'); $b = array_change_key_case($a, CASE_LOWER); $f = array_search(strtolower($search), $b);