<?php function firstNWords(string $string, int $limit = 3) { return preg_replace("/(?:\W*\w+){{$limit}}\K.*/", '', $string); } var_dump(firstNWords("hello yes, world wah ha ha")); # => "hello yes, world" var_dump(firstNWords("hello yes,world wah ha ha")); # => "hello yes,world" var_dump(firstNWords("hello yes world wah ha ha")); # => "hello yes world" var_dump(firstNWords("hello yes world")); # => "hello yes world" var_dump(firstNWords("hello yes world.")); # => "hello yes world" var_dump(firstNWords("hello yes")); # => "hello yes" var_dump(firstNWords("hello")); # => "hello" var_dump(firstNWords("a")); # => "a" var_dump(firstNWords("")); # => ""
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