asked on

Error checking dates

Hi Experts, please see my attached code. I am new to PHP and this is my first attempt. I have got error checking in place. But I am trying to test that the departure date is greater than the arrival date and I cant seem to implement it into my existing code.

My IF statement looks like this...

if ( $departure_date <= $arrival_date ) {
echo "oops error";
} else {
echo "All good";
}

Thanks,
Dean

<?
$dbhost = 'X';

$dbuser = 'X';
$dbpass = 'X';
$dbname = 'X';

$conn = mysql_connect($dbhost, $dbuser, $dbpass);
mysql_select_db($dbname);

 

if(!empty($_POST) && isset($_POST))

{

    $emptyvariables = false;

    if(!empty($_POST)){
        foreach($_POST as $key => $val){
            if(empty($_POST[$key])){
                echo"Please insert $key<br />";
                $emptyvariables = true;

                }
        }
    }

    if($emptyvariables == false){

        $id = mysql_real_escape_string($_POST['id']);
        $Forename = mysql_real_escape_string($_POST['Forename']);
        $Surname = mysql_real_escape_string($_POST['Surname']);
        $Arrival_Date = mysql_real_escape_string($_POST['Arrival_Date']);
        $Departure_Date = mysql_real_escape_string($_POST['Departure_Date']);
        $RoomNo = mysql_real_escape_string($_POST['RoomNo']);
        $Tel = mysql_real_escape_string($_POST['Tel']);

				$Arrival_Date = str_replace("/","-",($Arrival_Date));
        $Arrival_Date = date("Y-m-d", strtotime($Arrival_Date));

				$Departure_Date = str_replace("/","-",($Departure_Date));
        $Departure_Date = date("Y-m-d", strtotime($Departure_Date));

     
           $sql = "
            INSERT INTO bookings
            SET
            id = '$id',
            Forename = '$Forename',
            Surname = '$Surname',
            Arrival_Date = '$Arrival_Date',
            Departure_Date = '$Departure_Date',
            RoomNo = '$RoomNo',
            Tel = '$Tel'";          

            echo"$query";

                                                                        
        $result = mysql_query($sql);

        if(!$result)
        {
            echo "Booking already exists.";
        }
        else
        {
            echo "Record inserted successfully";
        }
    }
}

?>

<table width="300" border="1" cellpadding='5'cellspacing='5'>
   <tr align="center">
     <td><b>ID</b></td>
     <td><b>Forename</b></td>
     <td><b>Surname</b></td>
     <td><b>Arrival_Date</b></td>
     <td><b>Departure_Date</b></td>
     <td><b>RoomNo</b></td>
     <td><b>Tel</b></td>
   </tr>

<?

$sql = "
SELECT *
FROM bookings
ORDER BY ID ASC
LIMIT 20";

 $result = mysql_query($sql);
 while($row = mysql_fetch_array($result))

   {
?>


<?
$arrival_date_formatted = date("d-m-Y", strtotime($row['Arrival_Date']));
$departure_date_formatted = date("d-m-Y", strtotime($row['Departure_Date']));
?>

 <tr>
   <td><? echo $row['id']; ?></td>
   <td><? echo $row['Forename']; ?></td>
   <td><? echo $row['Surname']; ?></td>
   <td><? echo $arrival_date_formatted; ?></td>
   <td><? echo $departure_date_formatted; ?></td>
   <td><? echo $row['RoomNo']; ?></td>
   <td><? echo $row['Tel']; ?></td>
  </tr>

<?

  }

?>          

</table>

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ASKER CERTIFIED SOLUTION

Beverley Portlock

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deanlee17

ASKER

Thanks for the hints. But I need help implementing it into my code.

Beverley Portlock

What format are the dates being entered in? What I mean is what is the date format of $_POST['Arrival_Date'] before you do anything to it?

deanlee17

ASKER

User enters in this format DD-MM-YYYY

It is then formtted into YYYY-MM-DD just before the table insert (lines 40 & 43)

Thanks.

Beverley Portlock

OK, then after this point

$Arrival_Date = str_replace("/","-",($Arrival_Date));
$Arrival_Date = date("Y-m-d", strtotime($Arrival_Date));

$Departure_Date = str_replace("/","-",($Departure_Date));
$Departure_Date = date("Y-m-d", strtotime($Departure_Date));

the dates will be in YYYY-MM-DD format which means you can directly compare them

if ( $Departure_Date <= $Arrival_Date ) {
echo "oops error";
} else {
echo "All good";
}

Note that I have capitalised the names as PHP is case sensitive. Are we any further forward? I know you intend to output more than "oops" but what?

deanlee17

ASKER

Ok thats all well and good, but I cant implement the IF statement so that it echo's the error else continues on and does the insert. Usually it throws the error then goes on to post anyway lol.

I usually have.....

if ( $Departure_Date <= $Arrival_Date ) {
echo "oops error";
} else {

Then close the end bracket around line 70

Thanks

deanlee17

ASKER

Aha! got it working, ur first post about which format to use (YYYY-MM-DD) helped the most so I will award points to that post.

Many Thanks

Beverley Portlock

Glad you're sorted.