I'm looking for a pattern that accept only hebrew or english letters from 2 letters to 15, and can accept 1 space. I have tried following code but it does not matching my string:

```
<?php
$subject = "שלום לך";
$regexp="#^\p[{Hebrew}| ][a-zA-Z]{2,15}? \+$#u";
print_r(preg_match($regexp, $subject));
?>

```