simple function to truncate string to closest word

as the title implies… this is in wordpress though. preg_replace is the trick here.

function trim_excerpt() {
$text = get_the_excerpt();
$limit = 200;
if (strlen($text) > $limit) {
$text =  preg_replace('/\s+?(\S+)?$/', '', substr($text, 0, $limit)).'... ';
}
return $text;
}

add_filter("the_excerpt", "trim_excerpt");
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