Woocommerce customize email checkout - php

Question

This is my custom e-mail template which gets sent when a order is completed.
<?php
/**
* Customer completed order email
*
* #author WooThemes
* #package WooCommerce/Templates/Emails
* #version 1.6.4
*/
if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly ?>
<?php do_action( 'woocommerce_email_header', $email_heading ); ?>
<p><?php printf( __( "Hi there. Your recent order on %s has been completed. Your order details are shown below for your reference:", 'woocommerce' ), get_option( 'blogname' ) ); ?></p>
<?php do_action( 'woocommerce_email_before_order_table', $order, $sent_to_admin, $plain_text ); ?>
<h2><?php echo __( 'Order:', 'woocommerce' ) . ' ' . $order->get_order_number(); ?></h2>
<table cellspacing="0" cellpadding="6" style="width: 100%; border: 1px solid #eee;" border="1" bordercolor="#eee">
<thead>
<tr>
<th scope="col" style="text-align:left; border: 1px solid #eee;"><?php _e( 'Product', 'woocommerce' ); ?></th>
<th scope="col" style="text-align:left; border: 1px solid #eee;"><?php _e( 'Quantity', 'woocommerce' ); ?></th>
<th scope="col" style="text-align:left; border: 1px solid #eee;"><?php _e( 'Price', 'woocommerce' ); ?></th>
</tr>
</thead>
<tbody>
<?php echo $order->email_order_items_table( true, false, true ); ?>
</tbody>
<tfoot>
<?php
if ( $totals = $order->get_order_item_totals() ) {
$i = 0;
foreach ( $totals as $total ) {
$i++;
?><tr>
<th scope="row" colspan="2" style="text-align:left; border: 1px solid #eee; <?php if ( $i == 1 ) echo 'border-top-width: 4px;'; ?>"><?php echo $total['label']; ?></th>
<td style="text-align:left; border: 1px solid #eee; <?php if ( $i == 1 ) echo 'border-top-width: 4px;'; ?>"><?php echo $total['value']; ?></td>
</tr><?php
}
}
?>
</tfoot>
</table>
<?php do_action( 'woocommerce_email_after_order_table', $order, $sent_to_admin, $plain_text ); ?>
<?php do_action( 'woocommerce_email_order_meta', $order, $sent_to_admin, $plain_text ); ?>
<h2><?php _e( 'Customer details', 'woocommerce' ); ?></h2>
<?php if ($order->billing_email) : ?>
<p><strong><?php _e( 'Email:', 'woocommerce' ); ?></strong> <?php echo $order->billing_email; ?></p>
<?php endif; ?>
<?php if ($order->billing_phone) : ?>
<p><strong><?php _e( 'Tel:', 'woocommerce' ); ?></strong> <?php echo $order->billing_phone; ?></p>
<?php endif; ?>
<?php wc_get_template( 'emails/email-addresses.php', array( 'order' => $order ) ); ?>
<?php do_action( 'woocommerce_email_footer' ); ?>
I want to insert PHP code there which connects to a database, does a select query which needs the article ID and how many of the article ID´s are purchased and then sends a new email with this data.
I tried it multiple times but at the end the mail always stopped working due to some PHP error which I couldn't address without debugging opportunity.
As an example I tried:
<?php
$db = mysqli_connect("sqwffwq", "qwfqwf", "qwfqwf", "qwfwqf");
// here I have no clue how to receive the article ID´s and there amounts...
// I wasn't able to find the woocommerce function
$result = mysqli_query('SELECT * FROM etc. etc. ');
mail(results) //Should be no problem after I got the information
?>

Answer 1

run this and see whats going on with each result. What you've failed to mention above is where you are adding this code, are you sure you have $order available?
global $wpdb;
$rere2 = substr( $order->get_order_number(), 4);
echo 'rere2='.$rere2.'<br>';
$myrows = $wpdb->get_results( 'SELECT * FROM wp_woocommerce_order_items WHERE order_id = "'.$rere2.'"' );
var_dump($myrows);
foreach ( $myrows as $myrow) {
//mail("etix#foxfiredev.net",$rere2,$myrow->order_item_id);
$x=wp_mail( "etix#foxfiredev.net", $rere2 ,$myrow->order_item_id);
echo $x.'<br>';
$wpdb->update( 'wp_woocommerce_order_items',
array('id'=>$variable),
array('order_item_id'=>$myrow->order_item_id),
); // change table name, column names and values to suit..
}
exit;