Question

我试着在我的页面上创建一个文本输入，以便能够接收我的数据库上的用户名并返回他自己的另一个信息，我该怎么办呢？例如输入姓名并返回他的电话号码。我根本不知道如何开始。感谢

Answer 1

          <?php



          if(isset($_POST['username']){
                   try{


     $dbh = new PDO("mysql:dbname=Amor;host=127.0.0.1", 
                "Javier",     "your_password");
            $sql = "SELECT name, phone, address FROM people_table  

                 WHERE                                                                                                                 username=:username";
                     $res = $dbh->prepare($sql);
         $res->bindParam('username', $_POST['username'], PDO::PARAM_STRING);
                        $res->exec();


                 $row = $res->fetchAll(PDO::FETCH_ASSOC);


         print_r($row);
                //Sorry mate I'm feeling lazy. You can take over from here
        }
        ?>


         **//html code here**

       <form action="" method="GET>
      <input type="text" name="username">
      <input type="submit" value="Search">
              </form>

Answer 2

这是工作代码。但首先要学习基础知识。

<强>的index.html

<!DOCTYPE html>
<html>
<head>
    <title>Index page</title>
</head>

<body>

<form method="POST" action="retrieve.php">

    Enter your name : <input type="text" name='username'><br><br>
    <input type="submit" name="submit">

</form>

</body>
</html>

<强> retrieve.php

<?php

//Database connection
$connection = mysqli_connect("localhost","username","password","database_name");

if (isset($_POST['submit'])) {

    $uname = $_POST['username'];

    // sql query and user is the table name
    $query = "SELECT * FROM `user` WHERE user_name='$uname'";

    // query to execute
    $result = mysqli_query($connection,$query);

    if (!$result) {
        echo "fails";
    }


    while($row = mysqli_fetch_array($result)) {

        $telephone_no = $row['phoneno'];
        $country_name = $row['country'];

        echo "Your results for name - " . $uname;
        echo "<br><br>";

        echo "Telelephone is : " . $telephone_no;
        echo "<br>";
        echo "Country name is : " . $country_name;   
    }  
}
?>

数据库结构：（用户表）

enter image description here

要测试代码，请在PHPMyadmin插入选项卡中插入人员详细信息。（保留id，因为它设置为自动增量）。

enter image description here

通过php上的文本字段为用户提供数据？

2 个答案: