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嗨，你能幫助我嗎？我正在開發一個高爾夫障礙網站。但我在PHP語言方面的知識並不多，我只是PHP的初學者。 我需要記錄每位高爾夫選手的所有比分，並計算20場比賽中的最佳10個比分來獲得差點評分。不是10個最低分，而是10個最高分。我一直在研究它一個月，但我無法得到高爾夫障礙的確切代碼和邏輯。請幫幫我。高爾夫障礙網站
<?php
include "class.agolfhandicap.php";
include "conn.php";
$gh=new agolfhandicap();
// Get the user name if submitted.
if(isset($_POST['user'])){
$user=$_POST['user'];
$gh->setuser($user);
}
if(isset($_POST['delete'])){ //delete the record
$id=$_POST['id'];
$gh->deleteGame($id);
}
if(isset($_POST['edit'])){ //edit the record
$id=$_POST['id'];
}
// If no user yet, ask for it.
if(!isset($_POST['user'])){
print "<form name='user' action='$_SERVER[PHP_SELF]' method='POST'>";
print "Enter your user name:<input type='text' name='user' size='20'>";
print "<input type='hidden' name='hid' value='true'>";
print "<input type='submit' value='Submit' name='submits'>";
print "</form>";
}else{
// We have a username, so get new game data and display handicap and all games.
print "<h2>Golf Game Database and Handicap Calculator for $user</h2>\n";
@$newgame=$gh->getnewgame($id);
@$id=($_POST['edit']=="")? "":$id;
$gh->showform($id);
$hc=$gh->gethcap();
print ($hc==0)?"<h3>You need at least 5 games for a handicap index.</h3>":"<h3>Handicap for $user is $hc</h3><br>";
// If you just want the data without displaying it, use next line.
//$al=$gh->getAll();
$gh->showall();
}
?><?php
include "conn.php";
class agolfhandicap
{
var $user; // Username of golfer
var $all = array(); // Array used to return all game information from database
var $use=array(0=>0,0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,8,9,10);
// $use is an array used to determine how many games
// to use to calculate the handicap index.
// Sets the player's name.
function setuser($user)
{
$this->user=$user;
return true;
}
// Retrieves the submitted new game information and stores it in the database.
function getnewgame($id="")
{
if(isset($_POST['submit'])){
// print "submit=".$_POST['submit'];
// $id=$_POST['id'];
$user=$_POST['user'];
$this->user=$user;
$date =$_POST['date1'];
$date=date('M/d/Y');
$score = $_POST['score1'];
$crat = $_POST['crat1'];
$srat = $_POST['srat1'];
$course = $_POST['course1'];
if(!$date || !$score || !$crat || !$srat || !$course){
return false;
}else{
$hcap=round(($score-$crat)*113/$srat,1);
if($id==""){
$queryInsert = "INSERT INTO `golfhcapu` (user,course,date,score,crating,srating,hcapdiff) VALUES ('$user','$course','$date','$score','$crat','$srat','$hcap')";
$resultGetPages = mysql_query($queryInsert) or die ("Query failed: error was ".mysql_error());
}else{
$upd="UPDATE `golfhcapu` SET user='$user',date='$date',course='$course',score='$score',crating='$crat',srating='$srat',hcapdiff='$hcap' WHERE id='$id'";
$result=mysql_query($upd);
}
$_POST['edit']="";
$_POST['id']="";
$_POST['date1']="";
$_POST['score1']="";
$_POST['crat1']="";
$_POST['srat1']="";
$_POST['course1']="";
return true;
}
}else{
return false;
}
}
// This function displays a form to fill out to input the following
// new game information:
// Date
// 18 hole score
// Course Rating
// Slope Rating of the course
// Name of the golf course
function showform($id="") //Give it the id number of a record to edit it.
{
if($id == ""){ //If not editing, get the POST data
$date=isset($_POST['date1']);
$score=isset($_POST['score1']);
$crat=isset($_POST['crat1']);
$srat=isset($_POST['srat1']);
$course=isset($_POST['course1']);
}else{ //If editing get the values from the database
$queryGetPages = "SELECT * FROM `golfhcapu` WHERE `id`='$id'";
$resultGetPages = mysql_query($queryGetPages) or die ("Query failed: error was ".mysql_error());
$row = mysql_fetch_array($resultGetPages);
$date=$row['date'];
$score=$row['score'];
$crat=$row['crating'];
$srat=$row['srating'];
$course=$row['course'];
}
print ($id=="")?"<h4>Enter a new game.</h4>":"<h4>Edit the game</h4>";
print "<style>table{border-collapse:collapse}</style>";
print "<table border=3 cellpadding=6 >";
print "<tr align='center'>";
print "<td>Date<br>(mm/dd/yyyy)</td>";
print "<td>Adjusted<br>Gross Score</td>";
print "<td>USGA Course<br>Rating</td>";
print "<td>USGA Slope<br>Rating</td>";
print "<td>Course Name</td>";
print "</tr>";
print "<tr align='center'>";
print "<form name='frm' action='$_SERVER[PHP_SELF]' method='POST'>\n";
print "<input type='hidden' name='user' value='$this->user'>\n";
print "<input type='hidden' name='id' value='$id'>\n";
print "<td><input type='text' size='20' name='date1' value='$date'></td>\n";
print "<td><input type='text' size='5' name='score1' value='$score'></td>\n";
print "<td><input type='text' size='5' name='crat1' value='$crat'></td>\n";
print "<td><input type='text' size='5' name='srat1' value='$srat'></td>\n";
print "<td><input type='text' size='30' name='course1' value='$course'></td>\n";
print "</tr></table>\n";
print "<br><table><tr>";
print "<td><input type='submit' name='submit' value='Submit'>\n";
print "</form></td>";
print "<td><form name='frm' action='$_SERVER[PHP_SELF]' method='POST'>\n";
print "<input type='hidden' name='user' value='$this->user'><br>";
print "<input type='submit' name='cancel' value='Cancel'>";
print "</form></td></tr></table>";
return true;
}
// Displays a table of all the games played by user with the latest game first. The
// information displayed is:
// Game number
// Date of the game
// Adjusted Gross Score
// USGA Course Rating
// USGA Slope Rating of the course
// Handicap Differential of the game as calculated by this class
// Course name
function showall()
{
if($all=$this->getAll()){;
print "<style>table{border-collapse:collapse}</style>";
print "<table border=3 cellpadding=6 >";
print "<tr align='center'>";
print "<td>Game<br>Number</td>";
print "<td>Date</td>";
print "<td>Adjusted<br>Gross Score</td>";
print "<td>USGA Course<br>Rating</td>";
print "<td>USGA Slope<br>Rating</td>";
print "<td>Handicap<br>Differential</td>";
print "<td>Course Name</td>";
print "<td>Edit</td>";
print "<td>Delete</td>";
print "</tr>";
$n=count($all)-1;
for($i=$n;$i>=0;$i--){
$id=$all[$i]['id'];
$j=$i+1;
print "<tr align='center'>";
print "<form method='POST' action='$_SERVER[PHP_SELF]'>\n";
print "<input type='hidden' name='user' value='$this->user'>\n";
print "<input type='hidden' name='id' value='$id'>\n";
print "<td>$j</td>";
print "<td>".$all[$i]['date']."</td>";
print "<td>".$all[$i]['score']."</td>";
print "<td>".$all[$i]['crating']."</td>";
print "<td>".$all[$i]['srating']."</td>";
print "<td>".$all[$i]['hcapdiff']."</td>";
print "<td>".$all[$i]['course']."</td>";
print "<td><input type='submit' name='edit' value='Edit'></td>\n";
print "<td><input type='submit' name='delete' value='Delete'></td>\n";
print "</form>";
print "</tr>";
}
print "</table>";
}
}
// Retrieves the information for each game entered for 'user' in the database
// and returns it in an multidimensional array.
//
// Data for the first game:
// array[0]['id'] id number of record in database
// array[0]['date'] date game was played
// array[0]['score'] adjusted gross score of game
// array[0]['crating'] course rating
// array[0]['srating'] slope rating
// array[0]['hcapdiff'] handicap differential
// array[0]['course'] course name
// Data for the second game:
// array[1]['id']
// array[1]['date']
// array[1]['score']
// array[1]['crating']
// array[1]['srating']
// array[1]['hcapdiff']
// array[1]['course']
//
// etc
//
function getAll()
{
$queryGetPages = "SELECT * FROM `golfhcapu` WHERE `user`='$this->user' ORDER BY `date`";
$resultGetPages = mysql_query($queryGetPages) or die ("Query failed: error was ".mysql_error());
$n=mysql_num_rows($resultGetPages);
if($n > 0){
$i=0;
while ($row = mysql_fetch_array($resultGetPages)){
$this->all[$i]['id']=$row['id'];
$this->all[$i]['date']=$row['date'];
$this->all[$i]['score']=$row['score'];
$this->all[$i]['crating']=$row['crating'];
$this->all[$i]['srating']=$row['srating'];
$this->all[$i]['hcapdiff']=$row['hcapdiff'];
$this->all[$i]['course']=$row['course'];
$i=$i+1;
}
return $this->all;
}else{
return false;
}
}
// Reads the database and retrieves up to the last 20 games played.
// Determines how many of these games to use, and which ones, to calculate
// the handicap index.
// Using the chosen games, calculates the handicap index and returns it.
// If fewer than five games have been played, returns 0.
// A minimum of five games must have been played to determine the handicap index.
//
function gethcap()
{
$queryGetGames = "SELECT * FROM `golfhcapu` WHERE `user`='$this->user' ORDER BY `date` DESC LIMIT 20";
$resultGetGames = mysql_query($queryGetGames) or die ("Query failed: error was ".mysql_error());
$nr=mysql_num_rows($resultGetGames);
if($nr > 4){
$tot=0;
$n=$this->use[$nr];
for($i=0;$i<$nr;$i++){
$row = mysql_fetch_array($resultGetGames);
$hcd[$i]=$row['hcapdiff'];
}
sort($hcd);
for($i=0;$i<$n;$i++){
$tot=$tot+$hcd[$i];
}
$hcap=floor(10*(($tot/$n)*.96))/10;
return $hcap;
}else{
return 0;
}
}
function deleteGame($id)
{
$sql = "DELETE FROM golfhcapu WHERE id=$id";
$result = mysql_query($sql) or die ("Delete failed: error was ".mysql_error());
return;
}
}
// End of class
?>
Stackoverflow不是一個社區，您可以只問人們爲您推薦禮儀代碼。請向我們展示一些您已經嘗試過的代碼，並確認您遇到的具體問題 – ThomasVdBerge
目前尚不清楚導致問題的哪一部分。這聽起來像它可能只是一個簡單的數據庫查詢 - 按分數排序（降序）並獲得前10個結果。你有沒有嘗試過任何東西？發生了什麼？請在問題中包含您努力的成果。 –
我會在這裏等待我的代碼。 –