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Charges / Billing

Posted on 2013-07-01
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Last Modified: 2013-07-01
Price: 0.09

I need to charge 0.09 for every 30 seconds.

Say total time are 37 seconds. The charges are 0.18

If it's 1-30 seconds, the charge is 0.09

Basically, every 30 seconds, I am supposed to charge 0.09

How do I translate this into PHP code?
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Question by:rolandmy
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5 Comments
 
LVL 2

Author Comment

by:rolandmy
ID: 39289716
I kind of like found a way to do it. Refer to below. Is there a better way of doing it? I kind of feel like I am using the long way to go about it =/

 if ($billing=='xx') {
      $price='0.07';
  }else{
        $price='0.09';
  }
 
  $charge = $durationtime/30;
 
  if ( preg_match("/\./", $charge) ) {
        $actualcharge = intval($charge) + 1;
        }else{
              $actualcharge = intval($charge) + 0;
              }
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LVL 43

Expert Comment

by:Chris Stanyon
ID: 39289767
Use the ceil() function to get your 'multiplier', and then simply do the math:

$charge = 0.09;
$seconds = 39;
$total = ceil($sec/30) * $charge;

echo $total

Open in new window

and don't put quotes around your values - they then become strings!
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LVL 109

Expert Comment

by:Ray Paseur
ID: 39289769
Here is how to handle DATETIME information in PHP and MySQL.
http://www.experts-exchange.com/Web_Development/Web_Languages-Standards/PHP/A_201-Handling-date-and-time-in-PHP-and-MySQL.html

To determine an elapsed time in seconds, create timestamps and subtract.  To determine 30 second intervals or parts of 30 second intervals, use ceil() after dividing the number of seconds by 30.
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LVL 43

Assisted Solution

by:Chris Stanyon
Chris Stanyon earned 50 total points
ID: 39289775
Variable mis-match in my previous code:

$charge = 0.09;
$seconds = 39;
$total = ceil($seconds/30) * $charge;

echo $total;

Open in new window

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LVL 109

Accepted Solution

by:
Ray Paseur earned 250 total points
ID: 39289823
This seems to test out OK.
http://www.laprbass.com/RAY_temp_rolandmy.php

<?php // RAY_temp_rolandmy.php
error_reporting(E_ALL);
date_default_timezone_set('America/Chicago');

// THE RATE PER PERIOD
$rate = 0.09;

// THE DURATION OF THE PERIOD IN SECONDS
$dura = 30;

// THE ELAPSED TIME PERIOD OF SERVICE
$alpha = 'Today 11:58:03 pm';
$omega = 'Tomorrow 00:00:17';

// CREATE TIMESTAMPS AND GET SECONDS
$a_ts = strtotime($alpha);
$z_ts = strtotime($omega);
$secs  = $z_ts - $a_ts;

// COMPUTE CHARGES
$bill = ceil($secs/$dura) * $rate;

// REPORT THE WORK
echo "FROM $alpha TO $omega THERE ARE $secs SECONDS AND THE CHARGE IS " . '$' . number_format($bill,2);

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Best regards, ~Ray
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