更新时MySQL语法错误

Question

在此脚本中找不到问题:

$delhash  = array();
$resultxx = mysqli_query($datba1,"SELECT htag 
FROM wall_hashtags 
WHERE publicat='$permid'") or die('Error1');

while(list($dht) = mysqli_fetch_row($resultxx)) {
$delhash[] = $dht;
}

以下更新不起作用:

$result_update = mysqli_query($datba1,"UPDATE wall_hashtags  SET
numbr=numbr-1 WHERE htag IN (".implode(",", $delhash).")")
die(mysqli_error($datba1));

您的SQL语法有错误; 检查与MySQL服务器版本对应的手册,以便在第1行的"第一,第二,第三"附近使用正确的语法

阵:

echo '<pre>'; print_r($delhash); echo '</pre>';

Array
(
    [0] => first
    [1] => second
    [2] => third
)

Answer 1

请确保使用值更新using IN()子句varchar.请查看此内容以获取更多详

所以你应该用它包装'.

$result_update = mysqli_query($datba1,"UPDATE wall_hashtags  SET 
                 numbr=numbr-1 WHERE htag IN ('".implode("','", $delhash)."')")
                or die(mysqli_error($datba1));