how do I order this result??
$range = 5; // you'll be selecting around this range.
$min = $rank - $range;
$max = $rank + $range;
$limit = 10; // max number of results you want.
$result = mysql_query("select * from table where rank between $min and $max limit $limit");
while($row = mysql_fetch_array($result))
{
echo $row['name']." - ".$row['rank']."<br>";
}
$result = mysql_query(
"select * from table where rank between $min and $max " .
"order by rank asc limit $limit"
);
Use the "order by"- clause:
mysql_query("select * from table where rank between $min and $max order by rank limit $limit");
This will order your result from little to big values.
Use "order by rank desc" to order in descendent direction. (big -> little)
Related
I have got this php code
$coma_count=substr_count($Hob,',');
if ($coma_count==0) {
$query="SELECT * FROM user_opt WHERE Interests='$Hob' LIMIT 80";
}else{
$expl=explode(',',$Hob);
for ($i=0; $i <=$coma_count; $i++) {
$query.=" UNION SELECT * FROM users WHERE Interests LIKE '%{$expl[$i]}%'";
}
}
$sql=$con->query($query." ORDER BY RAND()") or die($con->error);
Number of $coma_count varies from 0 to 112 and the problem is when $coma_count is 0 (means only country was selected) my query is going to look like this SELECT * FROM user_opt WHERE Country='$Countr' LIMIT 80 ORDER BY RAND() which is not accepted by SQL.What can i do?
Create a $limit variable, set it if need be, then append it:
$limit = '';
$coma_count=substr_count($Hob,',');
if ($coma_count==0) {
$query="SELECT * FROM user_opt WHERE Interests='$Hob'";
$limit = " LIMIT 80";
}else{
$expl=explode(',',$Hob);
for ($i=0; $i <=$coma_count; $i++) {
$query.=" UNION SELECT * FROM users WHERE Interests LIKE '%{$expl[$i]}%'";
}
}
$sql=$con->query($query." ORDER BY RAND()".$limit) or die($con->error);
On the memberpage its shows the first 16 members, they are all in alphabetical order.
How to change that into random.
<?php
$limit=48;
$stages ='none';
$page = isset($_GET['page'])?mysql_escape_string($_GET['page']):0;
$start = ($page !== 0)?($page - 1) * $limit:0;
$queryl ="select *, DATE_FORMAT(FROM_DAYS(TO_DAYS(NOW())-TO_DAYS(birthdate)), '%Y')+0 as age from user_profiles LIMIT ".$start.",".$limit;
$query = "SELECT count(*) as num FROM `user_profiles` ";
$targetpage = 'zoeken.php?'.rtrim($_SERVER['QUERY_STRING'],'&');
$dis = display($queryl);
$paginate = paginate2($page, $stages, $limit, $targetpage, $query, $start);//current page, stages, limit, query
echo $dis['thumbnail'];
?>
Select a random row with MySQL:
SELECT column FROM table
ORDER BY RAND()
LIMIT 1
select *, DATE_FORMAT(FROM_DAYS(TO_DAYS(NOW())-TO_DAYS(birthdate)), '%Y')+0 as age from user_profiles ORDER BY RAND() LIMIT ".$start.",".$limit;
is there a better way to return random entries from the TOP 200 bestselling tshirts (tshirt_sales from shop_tshirts) that could just query just 6 entries instead of 200 ?
$SQL = "SELECT * FROM shop_tshirts WHERE shop = 'nidieunimaitre' AND online='1' ORDER BY tshirt_sales DESC LIMIT 200";
$Result = mysql_query($SQL)
or die('A error occured: ' . mysql_error());
$Rows = array();
while ($Row = mysql_fetch_assoc($Result))
$Rows[] = $Row;
shuffle($Rows);
$i = 0;
foreach($Rows as $Data){
$i++;
if($i >= 6) { break; }
}
Try this:
SELECT *
FROM
(SELECT *
FROM shop_tshirts
WHERE shop = 'nidieunimaitre' AND online='1'
ORDER BY tshirt_sales DESC
LIMIT 200) as tableAlis
ORDER BY RAND()
LIMIT 6;
Return first 200 results and after order by rand and return only six results.
Is there any way to count and split results without doing 2 query,
im using a query something like this:
$result = mysqli_query($con,"SELECT * from articles WHERE category = '$category'");
$row = mysqli_fetch_row($result);
$rows = $row[0];
$page_rows = 20;
$last = ceil($rows/$page_rows);
$pagenum = 1;
$limit = 'LIMIT ' .($pagenum - 1) * $page_rows .',' .$page_rows;
$result2 = mysqli_query($con,"SELECT * FROM articles order by id desc $limit");
while($row = mysqli_fetch_array($result2)) {
$id = $row['id'];
}
this is working but i dont like that it has 2 queries, any better idea? thank you
$pagenum = 1;
$rows_on_page = 20;
$start = (($pagenum - 1) * $rows_on_page);
$end = ($pagenum * $rows_on_page);
$result = mysqli_query($con, "SELECT * from articles WHERE category = '$category' ORDER BY id DESC LIMIT $start, $end");
while ($row = mysqli_fetch_array($con,$result) {
... do stuff with articles ...
$pagenum++;
}
The while loop will protect you from going past the end of the records.
try this query,it will return count of records and pagination (title in query is a field name, change it based on your table):
SELECT aa.countt, title FROM articles , (SELECT COUNT(*) AS countt FROM articles WHERE category = '$category' ) AS aa ORDER BY id LIMIT 5,10
I need to combine the two queries if possible or make them process one after the other. I'm assuming the $Record_Count = $Record_Count + 1; doesn't need to be there twice since that's just for the pagination script. (thanks in advance)
$results = mysql_query("SELECT * load_test WHERE language = '".$lang."' ORDER BY Id DESC, creationdate DESC LIMIT $start, 5");
while ($data = mysql_fetch_array($results)) {
$Record_Count = $Record_Count + 1;
$rec_res = mysql_query("SELECT * FROM names WHERE com_id = '".$data[Id]."'");
while ($recdata = mysql_fetch_array($rec_res)) {
$Record_Count = $Record_Count + 1;
IF $Record_Count is just counting the number of returned rows you could always use mysql_num_rows()
$results = mysql_query("SELECT * FROM load_test WHERE language = '".$lang."' ORDER BY Id DESC, creationdate DESC LIMIT $start, 5");
$rec_res = mysql_query("SELECT * FROM names WHERE com_id = '".$data[Id]."'");
$Record_Count += mysql_num_rows($result) + mysql_num_rows($rec_res);