Question

新手在这里，需要帮助。

我使用http://www.jensbits.com/2010/03/29/jquery-ui-autocomplete-widget-with-php-and-mysql/

中的代码

它适用于某些领域。我的问题在于我将国家和州存储在另一个表中，并且我得到了＃34;试图获得非对象的属性＆＃34;错误＆＃34; if（$ address_query-＆gt; num_rows）{＆＃34;。

autocomplete.php

$dbhost = 'SERVER';
$dbuser = 'USERNAME';
$dbpass = 'PASSWORD';
$dbname = 'DATABASE_NAME';

try {
  $conn = new PDO("mysql:host=$dbhost;dbname=$dbname", $dbuser, $dbpass);
}
catch(PDOException $e) {
    echo $e->getMessage();
}

$return_arr = array();
if ($conn)
{
$ac_term = "%".$_GET['term']."%";
$address_query = "SELECT * FROM address where customer_id = '" . $customer_id . "' AND (firstname like :term OR lastname like :term) LIMIT 10";
if ($address_query->num_rows) { // got "Trying to get property of non-object" error
        $country_query = "SELECT * FROM country WHERE country_id = '" . (int)$address_query->row['country_id'] . "'";

if ($country_query->num_rows) {
            $country = $country_query->row['name'];
            $iso_code_2 = $country_query->row['iso_code_2'];
        } else {
            $country = '';
            $iso_code_2 = '';
        }

        $zone_query = "SELECT * FROM zone WHERE zone_id = '" . (int)$address_query->row['zone_id'] . "'";

        if ($zone_query->num_rows) {
            $zone = $zone_query->row['name'];
            $zone_code = $zone_query->row['code'];
        } else {
            $zone = '';
            $zone_code = '';
        }   
$result = $conn->prepare($address_query);
$result->bindValue(":term",$ac_term);
$result->execute();

/* Retrieve and store in array the results of the query.*/
while ($row = $result->fetch(PDO::FETCH_ASSOC)) {
    $return_arr [] = array(

    'label' => $row['firstname'] .' '. $row['lastname'] .' '. $row['company'] .' '.         $row['city'] .' '. $row['postcode'],
  'value' => $row['firstname'] .' '. $row['lastname'],
  'Company' => $row['company'],
  'Country' => $row['iso_code_2'],
  'postCode' => $row['postcode'],

   );
}


}

echo json_encode($return_arr);
flush();
?>

如果我删除了代码

if ($query->num_rows) { // got "Trying to get property of non-object" error
        $country_query = "SELECT * FROM country WHERE country_id = '" . (int)$address_query->row['country_id'] . "'";

if ($country_query->num_rows) {
            $country = $country_query->row['name'];
            $iso_code_2 = $country_query->row['iso_code_2'];
        } else {
            $country = '';
            $iso_code_2 = '';
        }

        $zone_query = "SELECT * FROM zone WHERE zone_id = '" . (int)$address_query->row['zone_id'] . "'";

        if ($zone_query->num_rows) {
            $zone = $zone_query->row['name'];
            $zone_code = $zone_query->row['code'];
        } else {
            $zone = '';
            $zone_code = '';
        }

适用于名称，公司和邮政编码。顺便说一下，国家和州的字段是下拉选择表。

任何帮助将不胜感激！

Answer 1

你的$ address_query不是一个对象而是一个字符串，所以你得到了错误＆＃34;试图得到非对象的属性＆＃34;

要访问pdo对象，您需要通过您创建的$ conn访问它

$conn = new PDO("mysql:host=$dbhost;dbname=$dbname", $dbuser, $dbpass);

$address_query = "SELECT * FROM address where customer_id = '" . $customer_id . "' AND (firstname like :term OR lastname like :term) LIMIT 10";

$result = $conn->prepare($address_query);
$result->execute(array(':term'-> $term)); 

if ($result->rowCount()){

$ conn是对象而$ address_query是字符串，在你的字符串中你也有一个占位符：你需要在execute函数中为你的sql语句设置该值，这是找到所有：term in字符串并用值

替换它们

你的sql也没用了，因为你知道表格中的国家ID你应该加入表格

您的代码应如下所示：

$dbhost = 'SERVER';
$dbuser = 'USERNAME';
$dbpass = 'PASSWORD';
$dbname = 'DATABASE_NAME';

try {
  $conn = new PDO("mysql:host=$dbhost;dbname=$dbname", $dbuser, $dbpass);
}
catch(PDOException $e) {
    echo $e->getMessage();
}

$return_arr = array();
if ($conn)
{
$ac_term = "%".$_GET['term']."%";
$address_query = "SELECT * FROM address LEFT JOIN country address.country_id = country. country_id ON where address.customer_id = '" . $customer_id . "' AND (address.firstname like :term OR address.lastname like :term) LIMIT 10";

$result = $conn->prepare($address_query);
$result->bindValue(":term",$ac_term);
$result->execute();

/* Retrieve and store in array the results of the query.*/
while ($row = $result->fetch(PDO::FETCH_ASSOC)) {
    $return_arr [] = array(

    'label' => $row['firstname'] .' '. $row['lastname'] .' '. $row['company'] .' '.         $row['city'] .' '. $row['postcode'],
  'value' => $row['firstname'] .' '. $row['lastname'],
  'Company' => $row['company'],
  'Country' => $row['iso_code_2'],
  'postCode' => $row['postcode'],

   );
}}

Answer 2

我明白了。我将行改为

$address_query = "SELECT * 
FROM address 
LEFT JOIN country 
ON address.country_id = country.country_id 
where address.customer_id = '" . $customer_id . "' AND (address.firstname like :term OR address.lastname like :term) LIMIT 10";

感谢所有帮助过我的人。

自动填充地址表格交叉两个表格

2 个答案: