PHP MySQL bind_param只插入单行

Question

谁能解释为什么下面的代码仅在MySQL数据库中插入单行。 我用回声功能检查数组，它返回两行。

$counter=1; // just assume
$orderid=date("mY").'-'.str_pad($counter, 4, '0', STR_PAD_LEFT);
$stmt = $stmt_connect->prepare("INSERT INTO tblorder_detail(orderid,idno,productid,side,quantity,price,design,days,uploadtime,deliverytime,filecheck,isdelete) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)");
$i=0;
foreach ($saved_cart_items as $key => $value) { 
$i++;
$isdelete=0;   
$stmt->bind_param("siiiidiissii", $orderid, $i, $value['productid'], $value['side'], $value['quantity'], $value['price'], $value['design'], $value['days'], $value['uploadtime'], $value['deliveryid'], $value['filecheck'], $isdelete  );
$stmt->execute();
}

Answer 1

1st：您需要在foreach外部声明$i=1;。 否则在第一次$i是未定义的。 所以它抛出错误.在下一个循环中，它将变得1因此它仅插入第二行。

2nd：可以像下面这样绑定变量

$stmt = $stmt_connect->prepare("INSERT INTO tblorder_detail(orderid,idno,productid,side,quantity,price,design,days,uploadtime,deliverytime,filecheck,isdelete) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)");
$stmt->bind_param("siiiidiissii", $orderid, $i, $productid, $side, $quantity, $price, $design, $days, $uploadtime, $deliveryid, $filecheck, $isdelete  );
$i=1;
foreach ($saved_cart_items as $key => $value) { 
$i++;
$isdelete=0;   
$productid = $value['productid'];
$side=$value['side'];
$value['quantity'];
$price= $value['price'];
$design= $value['design'];
$days= $value['days'];
$uploadtime=$value['uploadtime'];
$deliveryid=$value['deliveryid'];
$filecheck=$value['filecheck'];

$stmt->execute();
}