public function testFormatCpf()
{
$string = '86536778790';
// cpf generated with: http://www.geradorcpf.com/
$masked_string = '865.367.787-90';
$this->assertEquals($masked_string, format_cpf($string));
}
<div class="col s12 l4">
Comprovante para:
<h4><?php
echo $response->client->name;
?>
</h4>
<address>
<?php
echo $response->client->email;
?>
<br><i class="fa fa-credit-card"></i> <strong class=""><?php
echo $response->credit_card;
?>
</strong>
<br><i class="mdi-action-picture-in-picture"></i> <?php
echo format_cpf($response->client->legal_id);
?>
</address>
</div>
<!-- /Invoice To -->
<!-- Invoice Number and Date -->
<div class="col s12 l4">
<div class="invoice-num">
<div class="num">Number: <span class="right"><strong><?php
echo $_GET['rid'];
?>
</strong></span>
</div>
<h4>
<div class="date">