警告：mysqli_stmt::bind_param()

Question

这里有什么问题？

$stmt  =$con->prepare("INSERT INTO tcp (capture_order, from_ip, to_ip, from_port, to_port, tcp_length, tcp_stream, tcp_stream_text, tcp_sequence_dec) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)");

$stmt->bind_param(   $this->capture_order,$this->from_ip, $this->to_ip,      $this->from_port,$this->to_port,   $this->tcp_length,$this->tcp_stream,     $this->tcp_stream_text, $this->tcp_sequence_dec);

错误是： 警告：mysqli_stmt::bind_param() [mysqli-stmt.bind-param]：类型定义字符串中的元素数量与绑定变量的数量不匹配

Answer 1

你没有正确使用方法，只看签名（如the doc pages所示）：

bool mysqli_stmt::bind_param ( string $types , mixed &$var1 [, mixed &$... ] )

第一个参数应该是一个字符串，指示实际参数的类型......在你的情况下，我猜是这样的：

$stmt->bind_param('issiiiiss', $this->capture_order,$this->from_ip, $this->to_ip,      $this->from_port,$this->to_port,   $this->tcp_length,$this->tcp_stream, $this->tcp_stream_text, $this->tcp_sequence_dec);

这是你想要做的......