Want to pass variables in foreach loop to another php file - php

Question

if (!empty($_SESSION["shopping_cart"])) {
$total = 0;
foreach ($_SESSION["shopping_cart"] as $keys => $values) {
?>
<tr>
<td><?php echo $values["item_name"]; //$GLOBALS['x']= $values["item_name"] $_COOKIE["iname"] = $values["item_name"] ?></td>
<td><?php echo $values["item_quantity"];//$GLOBALS['y']= $values["item_quantity"]//$_SESSION["iquantity"] = $values["item_quantity"]?></td>
<td>₹ <?php echo $values["item_price"]; //$GLOBALS['z']= $values["item_price"]//$_SESSION["iprice"] = $values["item_price"]?></td>
<td>₹ <?php echo number_format($values["item_quantity"] * $values["item_price"], 2); ?></td>
<?php
$menus = array("name"=>$values["item_name"],
"quan"=>$values["item_quantity"],
"price"=>$values["item_price"],
"id"=>$values["item_id"]);
?>
<td><span class="text-danger">Remove</span></td>
</tr>
<?php
$total = $total + ($values["item_quantity"] * $values["item_price"]);
}
?>
<tr>
<td colspan="3" align="right">Total</td>
<td align="right">₹ <?php echo number_format($total, 2); ?></td>
<td></td>
</tr>
<tr>
<td colspan="5" align="right"> <input type="submit" value="Confirm" class="btn btn-primary">
</td>
</tr>
</form>
<?php
}
Basically I am trying to create a cafeteria management system using sql, html and php. So I want to insert the items ordered by the user into a table for that I am supposed to pass the variables from a foreach of one php file to another php file.
I want to pass the $values["item_name"], $values["item_quantity"], $values["item_price"] to the other php file to insert their values into a sql table which is below:
<?php
include_once('index.php');
$i_name = ("item_name");
$i_quantity =("item_quantity");
$i_price =("item_price");
$i_id = ("item_id");
/*$i_name = $_SESSION[$menus["name"]];;
$i_quantity =$_SESSION[$menus["quan"]];
$i_price = $_SESSION[$menus["price"]];
$i_id = $_SESSION[$menus["id"]];
*/
session_start();
$un = $_SESSION['username'];
$host = "localhost";
$dbusername = "root";
$dbpassword = "";
$dbname = "cart";
$conn = new mysqli($host, $dbusername, $dbpassword, $dbname);
if (mysqli_connect_error()) {
die('Connect Error (' . mysqli_connect_errno() . ') '. mysqli_connect_error());
} else {
$sql = "INSERT INTO tbl_order (itemname, itemquantity, itemprice, itemid, username) values ('$i_name','$i_quantity','$i_price','$i_id','$un')";
if ($conn->query($sql)) {
header("location: lastpageFINAL.php");
} else {
echo "Error: " . $sql . "" . $conn->error;
}
$conn->close();
}
echo '<br /><a href="orderstatus1.php">';
//echo '<br /><a href="index.php">';
?>
I tried using global variables but couldn't make it.

Answer 1

Back in the days when I was a university student, one of my teachers told us that the code that you repeatedly need to execute is called "function". She was right in my opinion. However, you can do without functions as well, even though it's not especially advisable. You can use include/require for this purpose:
foo.php
$something = 0;
for ($i = 1; $i < 100; $i++) {
$something += $i;
require "bar.php";
}
bar.php
echo $something."<br>";
As you can see, $something is visible in bar.php because it was initialized before the file was required. This is how you can "pass" variables to files. However, again, it is advisable to define functions, require them only once and call them whenever you need them. Even better is to implement classes, but learn function programming first.
And as a sidenote I should mention: beware SQL injection and use parameterized queries instead of string interpolation.