I'm writing a basic categorization tool that will take a title and then compare it to an array of keywords. Example:
$cat['dining'] = array('food','restaurant','brunch','meal','cand(y|ies)');
$cat['services'] = array('service','cleaners','framing','printing');
$string = 'Dinner at seafood restaurant';
Are there creative ways to loop through these categories or to see which category has the most matches? Note that in the 'dining' array, I have regex to match variations on the word candy. I tried the following, but with these category lists getting pretty long, I'm wondering if this is the best way:
$keywordRegex = implode("|",$cat['dining']);
preg_match_all("/(\b{$keywordRegex}\b)/i",$string,$matches]);
Thanks, Steve
EDIT: Thanks to @jmathai, I was able to add ranking:
$matches = array();
foreach($keywords as $k => $v) {
str_replace($v, '#####', $masterString,$count);
if($count > 0){
$matches[$k] = $count;
}
}
arsort($matches);