Failed to insert data from web

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Im trying to insert data from web-page to database with input tags,i didnt get anything in my database and the connection file is doing good,what do you think about this take a look to my code(if there another way to do it share with me)

<html>
        <head></head>
        <body>


        <!--2017-12-22 21:52:50-->
        <form method="post" action="">
      <input type="text" placeholder='ID' name='id'> <p> 
      <input type="text" placeholder='NOM' name='nom'> <p> 
      <input type="text" placeholder='PRENOM' name='prenom'> <p>
        <input type="submit" value="INSERT INTO" name='but1'>
            </form>

        <?php
        include("connection.php");

        $id = $_POST['id'];
        $nom = $_POST['nom'];
        $prenom = $_POST['prenom'];
    if(isset($_POST['but1']))
{
        $query = "INSERT INTO student VALUES($id,$nom,$prenom,CURRENT_TIMESTAMP)";
    mysqli_query($con , $query);}


    //    $query = "insert into student values(12,'nom1','prenom2',CURRENT_TIMESTAMP)";




        ?>

    </body>
    </html>

What I have tried:

nothing yet

nothing yet

nothing yet

Posted 23-Dec-17 2:46am

Member 13124828

Updated 25-Dec-17 17:29pm

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ThilinaMD · Answer 1 · 2017-12-25T17:29:00

The query should be

$query = "INSERT INTO student VALUES('$id','$nom','$prenom',CURRENT_TIMESTAMP)";

like this and you should consider to assign $_POST['values'] after checking isset condition as below,

if(isset($_POST['but1'])){
         $id = $_POST['id'];
         $nom = $_POST['nom'];
         $prenom = $_POST['prenom'];
         $query = "INSERT INTO student VALUES('$id','$nom','$prenom',CURRENT_TIMESTAMP)";
     }

This will omit the error

Notice: Undefined index: id in .....

and consider about CURRENT_TIMESTAMP return value.