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Much better searching

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This commit is contained in:
Savetheinternet 2011-03-30 01:26:02 +11:00
parent b2ae5fdcba
commit c9471df00d
1 changed files with 40 additions and 4 deletions
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44
mod.php
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@ -111,7 +111,7 @@
'<input id="search" name="search" type="text" size="35" />' .
'<input type="submit" value="Search" />' .
'</form>' .
'<p class="unimportant">(Search is case-insensitive but not based on keywords.)</p>' .
'<p class="unimportant">(Search is case-insensitive, and based on keywords. To match exact phrases, use "quotes".)</p>' .
'</li>';
}
@ -309,19 +309,55 @@
'/>' .
'<input type="submit" value="Search" />' .
'</p></form>' .
'<p><span class="unimportant">(Search is case-insensitive but not based on keywords.)</span></p>' .
'<p><span class="unimportant">(Search is case-insensitive, and based on keywords. To match exact phrases, use "quotes".)</span></p>' .
'</div>';
if(isset($_POST['search']) && !empty($_POST['search'])) {
$phrase = $_POST['search'];
$_body = '';
// Remove SQL wildcard
$phrase = str_replace('%', '%%', $phrase);
// Use asterisk as wildcard to suit convention
$phrase = str_replace('*', '%', $phrase);
// wat "this is a test" "niggers and jews" hello world
$like = '';
$match = Array();
// Find exact phrases
if(preg_match_all('/"(.+?)"/', $phrase, $m)) {
foreach($m[1] as &$quote) {
$phrase = str_replace("\"{$quote}\"", '', $phrase);
$match[] = $pdo->quote($quote);
}
}
$words = explode(' ', $phrase);
foreach($words as &$word) {
if(empty($word))
continue;
$match[] = $pdo->quote($word);
}
$like = '';
foreach($match as &$phrase) {
if(!empty($like))
$like .= ' AND ';
$phrase = preg_replace('/^\'(.+)\'$/', '\'%$1%\'', $phrase);
$like .= '`body` LIKE ' . $phrase;
}
$like = str_replace('%', '%%', $like);
$boards = listBoards();
foreach($boards as &$_b) {
openBoard($_b['uri']);
$query = prepare(sprintf("SELECT * FROM `posts_%s` WHERE `body` LIKE :query ORDER BY `time` DESC LIMIT :limit", $board['uri']));
$query->bindValue(':query', "%{$phrase}%");
$query = prepare(sprintf("SELECT * FROM `posts_%s` WHERE " . $like . " ORDER BY `time` DESC LIMIT :limit", $board['uri']));
$query->bindValue(':limit', $config['mod']['search_results'], PDO::PARAM_INT);
$query->execute() or error(db_error($query));