finished code for 'tagging' useless cols

basically useless cols are 'tagged' with a D before the key that normally corresponds to the col number

later I need to cycle through all of the keys for all of the 'tagged' cols
and then delete their key AND their array data

that'll be easier

because the email formatting allows for a metadata tag to have content
proceeding it with line breaks, I'll have to do something more that just using \n as a delimiter, but rather have a for loop that
cycles through multiple delimiters and concentates the array and strings in it accordingly

possibly

$arrayUselessWordsColSelect = 0;

for($whatDelim = 0; $whatDelim <= count($arrayUselessWords); $whatDelim++;)
{
 then add code that would go get $arrayUselessWords's col that was
 $arrayUselessWordsColSelect;
 then do the explode code BUT THEN take back the string?
 then arrayUselessWordsColSelect = arrayUselessWordsColSelect + 1;
}

unsure.