Description:
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Please add new keyword "in" to improve readability of a PHP code that is an inline alias to array_search function.

For example:

  if (array_search($item, $array)) { ... }

would be:

  if ($item in $array) { ... }


Another example:

  if (array_search($item, array('first', 'second', 'third'))) { ... }

would be:

  if ($item in array('first', 'second', 'third')) { ... }

or ideally:

  if ($item in {'first', 'second', 'third'}) { ... }