How to make ranking system in PHP - php

Question

I have problem. .
In my case i make championship. . You know, the winner is determined by the highest value. .
Example :
$sql = "SELECT bla bla bla FROM `user` ORDER BY `point` DESC";
$result = mysql_query($sql);
$i=0;
while($row = mysql_fetch_array($result)) {
$1++;
echo "rank ".$i." is ".$row['name']." with point ".$row['point'].";
}
It's will show
rank 1 is abc with point 10
rank 2 is def with point 9
rank 3 is ghi with point 8
rank 4 is jkl with point 7
rank 5 is mno with point 7
rank 6 is pqr with point 3
rank 7 is stu with point 1
The question. .
look the result. . rank 4 and rank 5 have same point. . how to make
they in same possition ??
how to auto detect title of champions like rank 1 is the big boss, rank 2 is a boss, rank 7 is worker ??
how to tell ex: you in possition 6 ??

Answer 1

$sql = "SELECT bla bla bla FROM `user` ORDER BY `point` DESC";
$result = mysql_query($sql);
if( !$result ){
echo 'SQL Query Failed';
}else{
$rank = 0;
$last_score = false;
$rows = 0;
while( $row = mysql_fetch_array( $result ) ){
$rows++;
if( $last_score!= $row['point'] ){
$last_score = $row['point'];
$rank = $rows;
}
echo "rank ".$rank." is ".$row['name']." with point ".$row['point'].";
}
}
This code will also adjust the rankings properly - such as:
rank 1 is Adam Aarons with point 100
rank 2 is Barry Blue with point 90
rank 2 is Betty Boop with point 90
rank 4 is Charlie Chaplin with point 80
Note that there is no "rank 3", as "Charlie Chaplin" is actually the fourth-highest scorer.
If you do not want this behaviour, then simply replace $rank = $rows; with $rank++;

Answer 2

ad 1. group by point, add #curRow := \#curRow + 1 AS row_numbe to select the current row number which will be the rank position
ad 2. left join title_dict on row_number = title_dict.id
where title dictionary is table with title_id and title name dictionary
ad 3. select from your select on id = your id

Answer 3

Actually, a very easy way to order players with same amount of points is to add a column "points_last_update" containing the timestamp of the last update to the "points" column. Then you just add the "points_last_update" to the ORDER BY in your sql statement. That way, the player who has reached the points the first gets the higher ranking, wich is logic.

Answer 4

Save the last score and make sure it does not equal the current score before you increment.
$sql = "SELECT bla bla bla FROM `user` ORDER BY `point` DESC";
$result = mysql_query($sql);
$i=0;
$lastscore = NULL;
while($row = mysql_fetch_array($result)) {
if ($lastscore != $row['point']){
$i++;
}
echo "rank ".$i." is ".$row['name']." with point ".$row['point'];
$lastscore = $row['point'];
}