Remove quotes from form field

I'm having trouble returning the value less the quatation marks from the following: $words=explode(" ", strtolower($keywords)); I'm having the words from the form field put into an array. Problem is if the field contains something like trackworker AND "New York" It seperates the words into the array as follows: Array ( [0] => trackworker [1] => "new [2] => york" ) Therefore not finding the words "new york" because they don't exist like that but rather without the quotaions. Question is how do I remove the quatation marks so it returns? Array ( [0] => trackworker [1] => new [2] => york ) Thanks