在我将一些数据插入表
之后,它只是将我的id设置为0然后,我遇到了这种错误:
键'PRIMARY'重复输入'0'。
有人可以帮我识别问题吗?
$query = mysql_query("INSERT INTO customer VALUES('', '$name', '$phone', '$address', '$email_add')") or die(mysql_error());
$i=1;
foreach($_SESSION as $namee => $value)
{
if($value > 0)
{
if(substr($namee, 0, 5) == 'cart_')
{
$id = substr($namee, 5, (strlen($namee)-5));
$get = mysql_query("SELECT * FROM product WHERE code='$id'");
while($get_row = mysql_fetch_assoc($get)){
$sub = $get_row['price'] * $value;
echo '<p>'.$i.' '.$get_row['code'].' '.$get_row['name_nl'].' '.$value.' SubTotal : RM '.$sub.'</p> ';
$getCustomer = mysql_query("SELECT customer.id_customer, customer.name, customer.address, product.code, product.name_nl FROM customer, product WHERE name='$name' AND address='$address'" ) or die(mysql_error());
$data = mysql_fetch_array($getCustomer);
$pemb = $data['id_customer'];
$na = $data['name'];
$al = $data['address'];
$ib = $get_row['code'];
$nb = $get_row['name_nl'];
$i++;
}
}
mysql_query("INSERT INTO book VALUES('', '$pemb', '$na', '$al', '$ib', '$nb', '$value', '$sub', now()) ") or die(mysql_error());
}
}
答案 0 :(得分:0)
主键字段必须具有不同的值。
要解决此问题,您必须将此字段设置为AUTO_INCREMENT,因此每次输入新记录时,主键字段都会自动递增。