php array still getting white space and nulls

trying to get two word phrases from an array but I keep getting one word phrases with a white space either before or after the word.

$text = preg_replace(array('/\s{2,}/', '/[\t\n]/'), ' ', $text);
 $textarray = explode(" ", $text);
 array_filter($textarray);
 $textCount = array_count_values($textarray);
 arsort($textCount);
 $twoWords = array();
 for ($i = 0; $i<=count($textarray); ++$i) {
     if ($textarray[$i]<>"  ") {
         $twoWords[$i] = $textarray[$i]." ".$textarray[$i + 1];
     } else {
         $twoWords[$i] = "blah";
     }
 }
 foreach ($twoWordsCount as $tey => $val2) {
     if ($tey == null || $tey == "" || $tey == "\r\n"  || $tey == "\t"  || $tey == "\r"  || $tey == "\n" || $tey == "&nbsp;" || $tey == "  " || $tey == " ") {
         //do nothing
     } else {
         echo $val2."\n";
     }
 }
 

and for some reason this just returns values likes whitespace Hello or Test and then a whitespace, but I want it to return hello test

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