- date: documentation ( source)
- strtotime: documentation ( source)
<?php
$delidate = "2014-04-04";
$delivdate = strtotime($delidate);
$deliveryDay = "Friday";
$monthlyDate = strtotime("first $deliveryDay Next month", $delivdate);
$monthly = date("Y-m-d", $monthlyDate);
echo "<br>###########".$monthly;