<?php

$re = '~"(?:\\\\.|[^\\\\"])*"|\'(?:\\\\.|[^\\\\\'])*\'|[^\s"\']+~';
$str = 'Lorem ipsum ("dolor sit amet") consectetur "adipiscing \\"elit" dolor \'something  \\\'here\'';
preg_match_all($re, $str, $matches);
print_r($matches[0]);