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<?php
 
$re = '/\b\p{L}+(?:-\p{L}+)*!/u'; 
$str = "Hello k-ąn! Lorem Ipsum! Lorem.";
preg_match($re, $str, $match);
print_r($match);

Success #stdin #stdout 0.02s 52432KB

stdin

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Standard input is empty

stdout

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Array
(
    [0] => k-ąn!
)

https://ideone.com/KNDw1g

language:

PHP (php 7.3.5)

created:

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