Count and sum values from array in PHP - php

Question

I have a page that show my orders in day, but now i want to count and sum the values from 7 / 15 and 30 days ago (if possible in list), or just count/sum in this step: <strong>Soon</strong>
$pedido->valor_pedido is my value from order
$pedido->id its id from order, i use to count.
My code:
<div class="row">
<?php
$totalPedido = 0;
$contagPedido = 0;
foreach ($pedidos as $pedido) {
$totalPedido += $pedido->valor_pedido; // sum day orders
$contagPedido += count($pedido->id); //count day orders
}
?>
<div class="span12">
<!-- Widgets -->
<ul class="widgets">
<!-- Basic widget item -->
<li class="span3">
<span class="widget-label"><span class="awe-star"></span> This Week</span>
<strong>Soon</strong>
</li>
<!-- /Basic widget item -->
<!-- Clickable widget item -->
<li class="span3">
<span class="widget-label"><span class="awe-star"></span> Totay</span>
<strong>R$ <?= ConverteReal($totalPedido) ?></strong>
</li>
<!-- /Clickable widget item -->
<!-- Widgets with graphs -->
<li class="span3">
<span class="widget-label"><span class="awe-star"></span> Orders this week</span>
<strong>Soon</strong>
</li>
<li class="span3">
<span class="widget-label"><span class="awe-star"></span> Orders today</span>
<strong><?= $contagPedido ?></strong>
</li>
<!-- /Widgets with graphs -->
</ul>
<!-- /Widgets -->
</div>
</div>

Answer 1

According to PHP Manual, count() will use to get the count of all elements in an array
If $pedido->id is a unique ID, you can just get the count of $pedidos array like
<?
$contagPedido = count($pedidos); // total no of orders
foreach ($pedidos as $pedido) {
$totalPedido += $pedido->valor_pedido; // sum day orders
}
?>