How to use php logical operator with multi selection -


how use php logical operators multi-selection?

here simple html dom parse, want stuff, if html content not include div.title, , not include div.content, , not include div.description. (there no 3 class type div, process something).

but did this, not work, still can include 1 type of div class. need help. thanks. 

if ($html->find("div[class=title]") == ''      && $html->find("div[class=content]") == ''      && $html->find("div[class=description]") == '') {   // stuff working }

update well, have solved myself. wrong empty judge. close question, all.

if ((!$html->find("div[class=title]"))    && (!$html->find("div[class=content]"))    && (!$html->find("div[class=description]"))) {   // stuff working }

i have solved myself. wrong empty judge processing. 

if ((!$html->find("div[class=title]"))       && (!$html->find("div[class=content]"))       && (!$html->find("div[class=description]"))) {      // stuff working  }

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