Searching for consecutive values in an array

Question

What\'s the best way to search for consecutive values in an array?

For example, searching for array(\'a\', \'b\') in array(\'x\', \'a\', \'b\', \'c\

Answer 1

This is probably sub-optimal but is fairly concise:

$needle = array('a', 'b');
$haystack = array('x', 'a', 'b', 'c');

function searchInArray($haystack, $needle)
{
    $keys = array_search($haystack, $needle[0]);

    foreach ($keys as $key) {
        $endPos = $key + count($needle);   
        for ($i=1; $i<$count($needle); $i++) {
            if ($needle[$i] == $haystack[$key + $i]) {
                return $key;
            }
        }
    }
    return false;
}