PDOException：SQLSTATE [42000]：語法錯誤或訪問衝突Mysql的

Question

執行我的查詢時，我收到以下錯誤消息：

PDOException: SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax near '://www.website.com.br/Manual_01/Realm/1980-1988/R7678.htm' na linha 1: SELECT (field_data_field_url.entity_id) FROM field_data_field_url WHERE field_data_field_url.field_url_value = http//www.website.com.br/Manual_01/Realm/1980-1988/R7678.htm ; Array () em _xmlrpc_troca() 

這是從我的Drupal模塊我的功能：

$query = db_query("SELECT (field_data_field_url.entity_id) FROM field_data_field_url WHERE field_data_field_url.field_url_value = $url "); 
foreach ($query as $record) { 
echo $record->entity_id; 
} 
return $record; 

如果我總結我的「$ URL」與'它的工作原理：

$query = db_query("SELECT (field_data_field_url.entity_id) FROM field_data_field_url WHERE field_data_field_url.field_url_value = '$url' "); 

但我在XML-RPC響應得到錯誤，因爲它發回''和我解析響應時出錯。這個迴應帶有正確的數據，但它沒用，因爲我無法解析它。 有人知道如何解決它？

編輯：

響應就這樣產生了：

body: '30254<?xml version="1.0"?>\n\n<methodResponse>\n <params>\n <param>\n <value><struct>\n <member><name>entity_id</name><value><string>30254</string></value></member>\n</struct></value>\n </param>\n </params>\n</methodResponse>\n\n' 

這'30254和'末是問題。我得到了這個錯誤信息：

ExpatError: not well-formed (invalid token): line 1, column 5 

Answer 1

你應該嘗試使用db_query參數。

<?php $query = db_query('SELECT (field_data_field_url.entity_id) FROM field_data_field_url WHERE field_data_field_url.field_url_value = :url', array(':url' => $url)); ?> 

你也可以嘗試使用db_select（）函數。

<?php 
$select = db_select('field_data_field_url', 'fdfu'); // fdfu is an alias 
$select->fields('fdfu', array('entity_id')); 
$select->condition('field_url_value', $url); 
$query = $select->execute(); 

foreach($query as $result) { 
    echo $record->entity_id; 
} 
?>