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<?php $exception = ['will not'=>'will&nbs;pnot']; $string = 'They will not begin'; function r($s, $a){ $string = strtr($string, $exception); $array = explode(' ', $string); $array = array_combine(array_values($array), array_values($array)); $array = array_replace($array, array_intersect($array, array_flip($exception))); return array_values($array); } var_dump(f($string, $exception));

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