我是php编程的新手。
我的表格如下
reservation_id roomtype dor dco los status
100 superior 2014-05-15 2014-05-18 3 checked-in
101 deluxe 2014-05-20 2014-05-23 3 checked-in
102 single 2014-05-24 2014-05-28 4 checked-in
dor是预订日期或入住日期
dco是退房日期
和los是逗留时间
现在我对房间供应感到困惑，因为我是编程新手。
案件是这样的。例如，预订ID 103不能预订2014-05-15至2014-05-18的高级房间，因为它是通过预订100预订的。因此，如果103想要在该日期预订，他/她必须选择其他类型豪华或单人的房间。或者如果103想要预订高级房间，他/她必须在2014-05-18之后预订，这是可用的。
它的PHP代码是什么？
下面是我的预订表格中的PHP代码
<?php
include 'core/init.php';
protect_page();
include 'includes/overall/header.php' ;
//if form is being submitted
if(empty($_POST)=== false)
{
//to validate whether user enters smtg or not otherwise no point continue to do the next validation
//create an array
$required_fields = array ('user_id','full_name','passport','dor','dco');
foreach($_POST as $key=>$value)
{
//if the key (value) in array of $required_fields is true which is empty
if(empty($value) && in_array ($key, $required_fields) === true )
{
$errors[] = 'You must filled up all of the fields';
//the validation can happen to more than 1 field
break 1;
}
}
if(empty($errors) === true)
{
if (!preg_match('/^[0-9]{4}-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])$/', $_POST['dor']))
{
echo 'Input your Date of Reservation correctly!';
?>
Click <a href="reservation.php">here</a> to try again!
<?php
exit();
}
else if (!preg_match('/^[0-9]{4}-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])$/', $_POST['dco']))
{
echo 'Input your Check-out date correctly!';
?>
Click <a href="reservation.php">here</a> to try again!
<?php
exit();
}
else if (!preg_match('/^[1-9][0-9]{0,2}$/', $_POST['num_of_rooms']))
{
echo 'Your Number of rooms must be filled!';
?>
</br>
Click <a href="reservation.php">here</a> to try again!
<?php
exit();
}
else if (strtotime($_POST['dor']) < time())
{
echo 'Date of reservation cannot be in the past!';
?>
</br>
Click <a href="reservation.php">here</a> to try again!
<?php
exit();
}
else if (strtotime($_POST['dco']) < strtotime($_POST['dor']))
{
echo 'Check-out date cannot be before Date of Reservation!';
?>
</br>
Click <a href="reservation.php">here</a> to try again!
<?php
exit();
}
}
}
//what does this line does is that to check whether success is in the end of the URL
if(isset($_GET['success']) && empty($_GET['success']))
{
view_reservation();
}
else
{//if there are no errors
if (empty($_POST) === false && empty($errors) === true)
{
user_reservation();
}
//
else if (empty($errors) === false)
{
echo output_errors($errors);
}
?>
<link rel="stylesheet" type="text/css" media="all" href="jsDatePick_ltr.min.css" />
<script type="text/javascript" src="js/jsDatePick.min.1.3.js"></script>
<script type="text/javascript">
window.onload = function(){
new JsDatePick({
useMode:2,
target:"dor",
dateFormat:"%Y-%m-%d"
});
new JsDatePick({
useMode:2,
target:"dco",
dateFormat:"%Y-%m-%d"
});
};
</script>
<h1>RESERVATION </h1>
<form action="" method="post">
<fieldset>
<legend>
<font size="6">Please input your information correctly</font>
</legend>
<p>
<form action="" method="post">
<ul>
<li>
Full name*: <br>
<input type="text" name="fullname">
</li>
<li>
Contact No.: <br>
<input type="text" name="contactno">
</li>
<li>
IC/Passport*: <br>
<input type="text" name="passport">
</li>
<li>
Room Type*: <br>
<select name="roomtype" id="roomtype">
<option value="">Select</option>
<option value="Single">Single (RM 100)</option>
<option value="Superior">Superior (RM 200)</option>
<option value="Deluxe">Deluxe (RM 300)</option>
</select>
</li>
<li>
Number of Rooms*:</li>
<select name="num_of_rooms" id="num_of_rooms">
<option value="">Select</option>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
</select>
<br>
<li>
Date of reservation*: <br>
<input type="text" size="12" id= "dor" name="dor"/>
</li>
<li>
Check-out Date*: <br>
<input type="text" size="12" id= "dco" name="dco"/>
</li>
<input type="submit" value="Submit">
<input type="reset" value="Clear" >
<li>
<br>
</ul>
</form>
<?php
}
include 'includes/overall/footer.php' ;
?>
及以下是插入mysql的功能
function user_reservation ()
{
// Connecting, selecting database
$link = mysql_connect('localhost', 'root', '') or die('Could not connect: ' . mysql_error());
//echo 'Connected successfully<br>';
mysql_select_db('hotel_reservation3') or die('Could not select database');
//echo 'Selected system database - user successfully<br>';
//determine roomprice based on roomtype
if($_POST['roomtype'] == "Deluxe"){
$roomprice = 300;
}
else if($_POST['roomtype'] == "Superior"){
$roomprice = 200;
}
else{
$roomprice = 100;
}
// Store query in variable
$query = "INSERT INTO reservation (user_id,fullname,contactno,passport,roomtype,roomprice,num_of_rooms,dor,dco,bookingdate,length_of_stay,payment)
VALUES
(
'".$_SESSION['user_id']."',
'".mysql_real_escape_string($_POST['fullname'])."',
'".mysql_real_escape_string($_POST['contactno'])."',
'".mysql_real_escape_string($_POST['passport'])."',
'".mysql_real_escape_string($_POST['roomtype'])."',
$roomprice,
'".mysql_real_escape_string($_POST['num_of_rooms'])."',
'".mysql_real_escape_string($_POST['dor'])."',
'".mysql_real_escape_string($_POST['dco'])."',
NOW(),
DATEDIFF(dco,dor),
(roomprice*num_of_rooms*length_of_stay)
)";
// Performing SQL query
$result = mysql_query($query)
or die('Query failed: ' . mysql_error());
//echo "Success inserting record!";
// Closing connection
mysql_close($link);
header("Location:reservation.php?success");
}