Question

我已经从html表单中获得了我的价值......收到的价值完全正确..但BIND_PARAM（）的问题与准备好的声明？我可以使用php 7.0.1版本

<?php
if(isset($_POST['submit']))
{
    if(empty(($_POST['fname'])) && empty(($_POST['lname'])) && empty(($_POST['dg'])) )
    {
        header("Location:view.html/form.html");
    }
    else
    {
        $f_name=addslashes($_POST['fname']);
        $l_name=addslashes($_POST['lname']);
        $post=addslashes($_POST['dg']);
    }

//----------------connection to database using Pdo------------------
    $hostname="localhost";
    $uname="root";
    $password="";
    $database_name="test";
    $conn= new mysqli($hostname,$uname,$password) or die("cannot connect to database Mysql");
    $stm=$conn->prepare("insert into s_detail(F_Name,L_Name,Designation) values(?,?,?)");
    $stm->bind_param("sss",$f_name,$l_name,$post);
    //set parameter and execute
    $f_name=addslashes($_POST['fname']);
        $l_name=addslashes($_POST['lname']);
        $post=addslashes($_POST['dg']);
    if($stm->execute())
    {
        $stm->close();
        echo "data is inserted successfully";
    }
    else
    {
        echo "failed to insert";
    }
}
else
{
  echo "Don't be oversmart with me";
}
?>

错误是......

Fatal error: Uncaught Error: Call to a member function bind_param() on boolean in C:\xampp_7\htdocs\oops in php\oops.php:24 Stack trace: #0 {main} thrown in C:\xampp_7\htdocs\oops in php\oops.php on line 24

Plz帮助.....

Answer 1

您还需要添加数据库参数。那个缺失

$conn= new mysqli($hostname,$uname,$password,$database_name);

作为一种习惯，请务必检查您是否已成功连接到目标数据库

if($conn ==== false) {
die('error on connecting to database '.$conn->connect_error);
}

我在这个MySQL查询中遇到了这个错误？

1 个答案: