所有交易所:

$query = "SELECT * FROM `$table` WHERE `$column` IN(".implode(',',$array).")";

字符串:

$query = "SELECT * FROM `$table` WHERE `$column` IN('".implode("','",$array)."')";

下面是我使用的方法，对其他数据使用带有命名占位符的PDO。为了克服SQL注入，我过滤了数组，只接受整数的值，并拒绝所有其他的值。

$owner_id = 123;
$galleries = array(1,2,5,'abc');

$good_galleries = array_filter($chapter_arr, 'is_numeric');

$sql = "SELECT * FROM galleries WHERE owner=:OWNER_ID AND id IN ($good_galleries)";
$stmt = $dbh->prepare($sql);
$stmt->execute(array(
    "OWNER_ID" => $owner_id,
));

$data = $stmt->fetchAll(PDO::FETCH_ASSOC);

无PDO的安全方法:

$ids = array_filter(array_unique(array_map('intval', (array)$ids)));

if ($ids) {
    $query = 'SELECT * FROM `galleries` WHERE `id` IN ('.implode(',', $ids).');';
}

将$ids变量强制转换为数组 将所有数组值转换为整数 移除重复的值 删除零值 内爆连接所有值到IN选择

小心!此答案包含一个严重的SQL注入漏洞。不要使用这里给出的代码示例，除非确保任何外部输入都被清除。

$ids = join("','",$galleries);   
$sql = "SELECT * FROM galleries WHERE id IN ('$ids')";

正如Flavius Stef的回答，你可以使用intval()来确保所有id都是int值:

$ids = join(',', array_map('intval', $galleries));  
$sql = "SELECT * FROM galleries WHERE id IN ($ids)";

再举一个例子:

$galleryIds = [1, '2', 'Vitruvian Man'];
$ids = array_filter($galleryIds, function($n){return (is_numeric($n));});
$ids = implode(', ', $ids);

$sql = "SELECT * FROM galleries WHERE id IN ({$ids})";
// output: 'SELECT * FROM galleries WHERE id IN (1, 2)'

$statement = $pdo->prepare($sql);
$statement->execute();