在一个 php 页面中访问来自多个表 (SQL) 的数据

Question

Hi im new in php/sql programing, im making a website in html and whem i enter the fields on texbox i could pass the data to mysql database.

html example:

<form action="insert.php" method="get">
<TABLE>

<TR>
<TH style="width: 454px">

<select name="marcas">
<option value ="1"> Peugeot   </option>
<option value = "2"> Renault  </option>
<option value ="3"> Opel </option>
</select>
<select name="modelo">
<option value ="1"> 105   </option>
<option value = "2"> 205  </option>
<option value ="3"> 507 </option>
</select>
<P align="left">Matricula: <INPUT NAME="matricula" TYPE=text SIZE="20">
<P align="left">Ano: <INPUT NAME="ano" TYPE=text SIZE="60">
<p align="left">Quilometros: <INPUT NAME="kms" TYPE=text SIZE="20"> 
<tr><td>Estado:</td><td>
<input type="radio" name="estado"value="usado">Usado<br>
<input type="radio" name="estado" value="novo">Novo
</td></tr>  

</TH>
</TR>
</TABLE>

Now i got PHP to connect to table cars:

<?php
  include "connect.php";

$sql = "INSERT INTO carro (id_modelo, id_cor,id_extras, matricula, ano, kms,    estado) values (?,?,?,?,?,?,?)";

if ($stmt = $mysqli->prepare($sql)) {
$stmt->bind_param("sssssss",$_REQUEST["id_modelo"],$_REQUEST["id_cor"],$_REQUEST["id_extras"], $_REQUEST["matricula"], $_REQUEST["ano"], $_REQUEST["kms"], $_REQUEST["estado"]);

$stmt->execute();

if ($stmt->affected_rows == -1) {
  echo "<p>". $mysqli->error. "</p>";
}
else {
  echo "<sp>Carro Inserido com Sucesso!</p>";
}

$stmt->close();
}

$mysqli->close();
?>

My question is , i want that some of the fields in textbox connect with other diferent table but i dont know if thats possible, for example something like:

$sql = INSERT INTO car
$sql2 = INSERT INTO engine
$sql3 = INSERT INTO brand

some code that can make me in the same page enter the data for diferent tables

Thanks

Answer 1

You're on the right track already, although you cannot insert into different tables in a single INSERT INTO query.

Instead all you need to do is perform three separate INSERT INTO queries, ie one for each table.

In each query just use the value from your $_REQUEST data that you need. For example once you've done your query to add data to your Cars table you would just perform another query for eg Engine like:

$sql2 = "INSERT INTO Engines (** Columns **) values (?,?,?,?,?,?,?)";

if ($stmt = $mysqli->prepare($sql)) {
    $stmt->bind_param(...);

$stmt->execute();

...

}

and bind the inputs you want like you did before. All you'll need to do is add extra input fields to your form to get the extra data you want.