try {
$conn = new PDO(" mysql :host=$servername;dbname=$dbname", $username, $password);
$conn->query('set names utf8');
/* echo "连接成功";*/ //PDO防止SQL注入
$code=$input;
$sql="select * from box where status=:status and code=:code";
$stmt=$conn->prepare($sql);
$stmt->execute(array(":status"=>1,":code"=>$code));
// $sql="select * from box where status=1 and code='$input'";
$result = $stmt;
if($result->rowCount()==0){
$box='wrong code !';
}else{
$row=$result->fetch(1);
$box = $row['box'];
}
$conn = null;
}
catch(PDOException $e)
{
echo $e-> getMessage ();
$box ='no box open';
}
文章来源：智云一二三科技
文章标题：PHP防止SQL注入的PDO写法
文章地址：https://www.zhihuclub.com/78979.shtml
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