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我遇到了全文搜索查詢的問題。它是從Symfony（2.8）控制器的內部發送的，如果這很重要的話。代碼是：Symfony/MySQL：特殊字符的全文搜索語法錯誤
// not processed text (apart from multiple spaces) from form:
$searchTerm = preg_replace('!\s+!', ' ', trim($data['query']));
// for full-text search:
$searchTermPhrase = str_replace(' ', '* ', $searchTerm) . '*';
$entityManager = $this->getDoctrine()->getManager();
// as far as I remember, query taken from StackOverflow after some tests
$statement = $entityManager->getConnection()
->prepare(
"SELECT COUNT(id) AS books_count
FROM book
WHERE
MATCH(title) AGAINST (:searchTermPhrase IN BOOLEAN MODE) > 5
AND active = true
");
$statement->execute(array('searchTermPhrase' => $searchTermPhrase));
$titlesCount = $statement->fetch();
$titlesCount = $titlesCount['books_count'];
現在，它工作得很好。大多數時候。但是，如果用戶把裏面的一些特殊字符，例如(title)，"title"等，它失敗：
SQLSTATE[42000]: Syntax error or access violation:
1064 syntax error, unexpected $end, expecting
FTS_TERM or FTS_NUMB or '*'
我不明白這一點，我使用參數化查詢，它會自動採取這樣的情況下照顧... ？我不想最終剝離所有非字母數字字符或測試，這確實會導致問題，但我沒有想法。