php find multiple value in array

1if (in_array('a', $array_under_test) || in_array('b', $array_under_test)) {
2  // Success!
3}
4

1$uniqueKeys = array_unique($list[0])
2
3foreach ($uniqueKeys as $uniqueKey)
4{
5  $v = array_keys($list[0], $uniqueKey);
6
7  if (count($v) > 1)
8  {
9    foreach ($v as $key)
10    {
11      // Work with $list[0][$key]
12    }
13
14  }
15}
16

1$haystack = array(...);
2
3$target = array('foo', 'bar');
4
5if(count(array_intersect($haystack, $target)) == count($target)){
6    // all of $target is in $haystack
7}
8