I am confused to use this function when my coding is too long and there is "php" function in email. Can you give me an example? I want to send an email according to this code that I created this from to * end
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Wherco</title>
<!-- Latest compiled and minified css -->
<link rel="stylesheet" href="../view/css/bootstrap.min.css">
<!-- optional theme-->
<link rel="stylesheet" href="../view/css/bootstrap-theme.min.css">
<!--my custom css-->
<link rel="stylesheet" href="../view/css/style.css">
<!--font-awesome-->
<link rel="stylesheet" href="../view/font-awesome/css/font-awesome.min.css">
<style>
.invoice-box{
max-width:800px;
margin:auto;
padding:30px;
border:1px solid #eee;
box-shadow:0 0 10px rgba(0, 0, 0, .15);
font-size:16px;
line-height:24px;
font-family:'Helvetica Neue', 'Helvetica', Helvetica, Arial, sans-serif;
color:#555;
}
.invoice-box table{
width:100%;
line-height:inherit;
text-align:left;
}
.invoice-box table td{
padding:5px;
vertical-align:top;
}
.invoice-box table tr td:nth-child(2){
text-align:right;
}
.invoice-box table tr.top table td{
padding-bottom:20px;
}
.invoice-box table tr.top table td.title{
font-size:45px;
line-height:45px;
color:#333;
}
.invoice-box table tr.information table td{
padding-bottom:40px;
}
.invoice-box table tr.heading td{
background:#eee;
border-bottom:1px solid #ddd;
font-weight:bold;
}
.invoice-box table tr.details td{
padding-bottom:20px;
}
.invoice-box table tr.item td{
border-bottom:1px solid #eee;
}
.invoice-box table tr.item.last td{
border-bottom:none;
}
.invoice-box table tr.total td:nth-child(2){
border-top:2px solid #eee;
font-weight:bold;
}
@media only screen and (max-width: 600px) {
.invoice-box table tr.top table td{
width:100%;
display:block;
text-align:center;
}
.invoice-box table tr.information table td{
width:100%;
display:block;
text-align:center;
}
}
</style>
</head>
<?php $result = tampil_per_id_order($_GET['id']);
while($row = mysqli_fetch_assoc($result)) { ?>
<body>
<div class="invoice-box">
<table cellpadding="0" cellspacing="0">
<tr class="top">
<td colspan="2">
<table>
<tr>
<td class="title">
<h7> Wherco </h7>
</td>
<td>
Invoice order #: <?php echo $row['id_order']?><br>
Created: <?php echo date("Y-m-d"); ?><br>
</td>
</tr>
</table>
</td>
</tr>
<tr class="information">
<td colspan="2">
<table>
<tr>
<td>
Wherco.<br>
12345 Seminyak<br>
-
</td>
<td>
<?php echo $row['username']?><br>
<?php echo $row['email']?><br>
<?php echo $row['telp']?>
</td>
</tr>
</table>
</td>
</tr>
<tr class="heading">
<td>
Deskripsi Project
</td>
<td>
Tanggal Transfer
</td>
</tr>
<tr class="details">
<td>
<?php echo $row['deskripsi']?>
</td>
<td>
<?php echo $row['tanggal_konfirmasi']?>
</td>
</tr>
<tr class="heading">
<td>
Jenis Package
</td>
<td>
Biaya
</td>
</tr>
<tr class="item">
<td>
<?php echo $row['jenis_package']?>
</td>
<td>
Rp.<?php echo number_format($row['jumlah_transfer']); ?>
</td>
</tr>
<tr class="item last">
<td>
</td>
<td>
</td>
</tr>
<tr class="total">
<td>Total</td>
<td>
Rp.<?php echo number_format($row['jumlah_transfer']); ?> <br> <br>
<form class="" action="" method="post">
<div class="btn-group" role="group" aria-label="...">
<button type="submit" class="btn btn-success">Kirim Email</button>
</div>
</form>
</td>
</tr>
</table>
</div>
</body>
<?php }?>
</html>