note 15782 deleted from function.in-array by jimw

Starting with ck1@wwwtech.de's nice PHP4 array_in_array(), I found a way to get an array_in_array() that works with multidimensional arrays using foreach() and recursion. I tested it *some* -- YMMV, etc. function array_in_array($needle, $haystack) { $return = false; if (! is_array($haystack)) return false; if (! is_array($needle)) return in_array($needle, $haystack); foreach($needle as $needle_element) { foreach($haystack as $haystack_element) { if (array_in_array($needle_element, $haystack_element)) { $return = true; break 2; //both haystack and needle foreaches } else { if (is_array($haystack_element)) { foreach($haystack_element as $haystack_another_level) { if (array_in_array($needle_element, $haystack_another_level)) { $return = true; break 3; //inner haystack, haystack, and needle } } } } } } return $return; } Note that the recursion works because it just gives the results of in_array() if $needle is another type, so this code won't search multiple dimensions for a non-array. Otherwise, I think it will work as expected with multiple dimensions.