- time: documentation ( source)
<?php
$easypaisaAmount = 1200;
$orderid =1001;
echo "<form action='https://easypay.easypaisa.com.pk/easypay/Index.jsf' method='POST' target='_blank'>";
echo "<input name='storeId' value='2023' hidden = 'true'/>";
echo"<input name='amount' value='$easypaisaAmount' hidden = 'true'/>";
echo"<input name='postBackURL' value='ourhatti.com/test.php' hidden = 'true'/>";
echo "<input name='orderRefNum' value='$orderid' hidden = 'true'/>";
$date = new DateTime(time());
$date->add(new DateInterval('PT12H'));
echo "<input type ='hidden' name='expiryDate' value='echo $date->format(\'Ymd His\')'>";
echo "</form>";