/**
* Function searchFull()
*
* This function performs a search to the search table for a given string. The query string
* is first transformed into greeklish. The results are returned as an array, whose each element
* is another array holding results data:
* - 'foreign_ID' : The id of the entry that includes the search string, in the original table.
* - 'table_name' : The original table name, where the search term came from
* - 'position' : The posirion of the text, 'title' or 'data'
* - 'score' : The relevance score
*
* @param string $text The text to search for
* @param bool $tableName The database table to search into
* @param string $position The position of the text, could be 'title' or 'data'
* @param int $number The number of results to display
* @since 3.5.0
* @access public
*/
public static function searchFull($text, $tableName = false, $position = false, $number = 20)
{
global $debugMessages;
$debugMessages .= "Got into search";
$eachword = explode(" ", $text);
$maxres = 10000;
$score_ids = array();
for ($i = 0; $i < count($eachword); $i++) {
if (mb_strlen($eachword[$i]) > 3) {
$results[$i] = EfrontSearch::searchForOneWord($eachword[$i], $maxres, $tableName, $position);
$score_ids[$i] = array_combine($results[$i]['foreign_ID'], $results[$i]['score']);
$maxres = $maxres / 2;
}
}
//These lines are used for removing empty subarrays because of words with mb_strlen < 3
foreach ($results as $key => $value) {
if (!empty($value)) {
$resultsTemp[] = $results[$key];
$score_idsTemp[] = $score_ids[$key];
}
}
$results = $resultsTemp;
$score_ids = $score_idsTemp;
$common_keys = $score_ids[0];
for ($i = 1; $i < sizeof($score_ids); $i++) {
$common_keys = array_intersect_key($common_keys, $score_ids[$i]);
foreach ($common_keys as $key => $value) {
$common_keys[$key] += $score_ids[$i][$key] - 1;
}
}
$field_data = array();
$max_score = max($common_keys);
for ($i = 0; $i < sizeof($results[0]['foreign_ID']); $i++) {
if (in_array($results[0]['foreign_ID'][$i], array_keys($common_keys))) {
$field_data[] = array('foreign_ID' => $results[0]['foreign_ID'][$i], 'table_name' => array_search($results[0]['table_name'][$i], EfrontSearch::$tableAssoc), 'position' => $results[0]['position'][$i], 'score' => $common_keys[$results[0]['foreign_ID'][$i]] / $max_score);
}
}
return $field_data;
}
