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# im doin car rental site where i have set price to each car. i have worked out number of days between dates. i need this multiply two values to get quota

Posted on 2005-04-03
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Im doin a car rental site where each car has a set price. I have an orderpage2.php that takes in the pick up date and the drop off date. I have calculated the difference in dates. The next page displaycar.php shows the model, make and transmission and price for each car. I want to show the quoted price for each car. That is the price per day multiplied by the number of days.
The following is the code i used for displaycar.php to get price per day and day difference:

<?php
session_start();
\$pickup = \$_POST['pickup'];
\$dropoff = \$_POST['dropoff'];
\$pickupdate = \$_POST['Pick_Up_Date'];
\$dropoffdate = \$_POST['Drop_Off_Date'];
\$transmission = \$_POST['transmission'];
\$_SESSION['pickup'] = \$pickup;
\$_SESSION['dropoff'] = \$dropoff;
\$_SESSION['Pick_Up_Date'] = \$pickupdate;
\$_SESSION['Drop_Off_Date'] = \$dropoffdate;
\$_SESSION['price'] = \$price;
\$_SESSION['transmission'] = \$transmission;
?>
<?php function makeTimestamp( \$date )
{
static \$months = array( 1 => 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec' );
\$fixed = preg_replace('#^\s*(\d{1,2})\s*([-/\.])\s*(\d{1,2})\s*\\2\s*(\d{2,4})\s*\$#e', 'sprintf(\'%02d-%s-%04d\', intval(\'\\1\'), \$months[intval(\'\\3\')], (strlen(\'\\4\') < 4 ? 1900 : 0) + intval(\'\\4\') )', \$date);
return strtotime(\$fixed);
}
function toDays( \$timestamp )
{
return intval(intval(\$timestamp) / (24 * 60 * 60));
}
function dateDiff( \$date1, \$date2 )
{    \$date1 = toDays(makeTimestamp( \$date1 ));
\$date2 = toDays(makeTimestamp( \$date2 ));
return abs(\$date1 - \$date2);
}
echo dateDiff( \$pickupdate, \$dropoffdate );

?>

I know i wont need to echo datediff. its just how to get price in database, for each car that is available multipiled by datediff.

I just echoed out the differnce in dates to see if it worked. i want to multiply this date difference by the price per day and display it in the price field. But there is small complication on to this. if the datediff = 0 i want the price field to just display the price in the database else if datediff = 1 i want the price to be price in the database + price in the database(price in database * price in database) else if datediff > 1 i want the price in price field to display the price in database * datediff + price in database,
for example if price per day in database = 20 and calculated date diff = 4
price field should hold value of 4*20+20 = 100

the following is the code for printing out the results. i know the last echo wont be echo row['price']. it must be whatever calculation i worked out:

<?
include "db_connection.php";
\$connect = db_connect();
if (\$connect)
\$_SESSION['pickup'] = \$pickup;
{
\$query = "select * from car Where pickup ='\$pickup' && transmission Like '%\$transmission'"; //Selecting all Entries from the database

\$result = mysql_query(\$query,\$connect); //Assigns the variable result to the Query Connection

//\$temp = mysql_fetch_array(\$result);

if(mysql_num_rows(\$result)==0)
{

echo"There are no Records with the location You have entered.";?>        <P>
<a href="orderpage.php">

<?

}

while(\$row = mysql_fetch_assoc(\$result)) //;
{
?>
</center>

<table border="" cellpadding="0" cellspacing="1" style="border-collapse: collapse; border-width: 0" bordercolor="" width="100%" id="AutoNumber6">
<!--DWLayoutTable-->
<b>
<tr>
<td width="105" height="44" valign="top"><b><a href = "EnterCreditCard.php?model=<? echo \$row['Model']?>&make=<? echo \$row['Make']?> " ><? echo \$row["Model"]; ?>  </a></b></td>
<td width="116" valign="top"><? echo \$row["Make"]; ?></td>
<td width="112" valign="top"><? echo \$row["transmission"]; ?></td>
<td width="115" valign="top"><? echo \$row["price"]; ?></td>
</tr>

<?
0
Question by:acslater
• 2

LVL 12

Accepted Solution

Gregory Miller earned 2000 total points
ID: 13691777

if(dateDiff( \$pickupdate, \$dropoffdate )==0){
\$thisPrice = \$row["price"];
}else{
\$thisPrice = \$row["price"] * dateDiff( \$pickupdate, \$dropoffdate );
}

and then replace the price variable as such...

<td width="116" valign="top"><? echo \$row["Make"]; ?></td>
<td width="112" valign="top"><? echo \$row["transmission"]; ?></td>
<td width="115" valign="top"><? echo \$thisPrice; ?></td>
</tr>
0

Author Comment

ID: 13691973
dat worked a treat
0

LVL 12

Expert Comment

ID: 13691989
great... Thanks!
0

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