sucky.php

public function performSearches() {
        $str = 'This is a test only.';
        $results = [];
        $search_types = \app\models\SearchType::find()->orderBy('score DESC')->all();
        foreach($search_types as $search_type) {
            if(count($results) >= $this->max_results) {
                break;
            }
            //exact match query
            if($search_type->type == self::TYPE_EXACT) {
                $sql = $this->getExactSql($str, $search_type->field);
                if($sql) {
                    $search_results = $this->getSearchResults($sql);
                    foreach($search_results as $result) {
                        $results[] = $result;
                        if(count($results) >= $this->max_results) {
                            break;
                        }
                    }
                }
            }
            //keyword match query
            if($search_type->type == self::TYPE_KEYWORD) {
                $keywords = $this->getUniqueKeywordsFromString($str);
                $groups = $this->getUniqueKeywordCombinations($keywords, $search_type->variations);
                foreach($groups as $group) {
                    $sql = $this->getKeywordsSql($group, $search_type->field, $search_type->variations);
                    if($sql) {
                        $search_results = $this->getSearchResults($sql);
                        foreach($search_results as $result) {
                            $results[] = $result;
                            if(count($results) >= $this->max_results) {
                                break;
                            }
                        }
                    }
                }
            }
            //description match
            if($search_type->type == self::TYPE_STRING) {
                //split string up into 100 character array elements
                if(strlen($str) >= ($search_type->c_size * $search_type->variations)) {
                    $chunks = str_split($str, $search_type->c_size);
                    //split array elements into groups
                    $groups = array_chunk($chunks, $search_type->variations);
                    foreach($groups as $group) {
                        if(strlen(end($group)) >= $search_type->c_size) { //not really sure why this works
                            $sql = $this->getKeywordsSql($group, $search_type->field, $search_type->variations);
                            if($sql) {
                                $search_results = $this->getSearchResults($sql);
                                foreach($search_results as $result) {
                                    $results[] = $result;
                                    if(count($results) >= $this->max_results) {
                                        break;
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
        return $results;
    }