PHP - Count Rows On A Select From Where Result

Hi. I having trouble with counting rows in phpmyadmin.

It works fine this way:
Code: [Select]
$result_rows = mysql_query("SELECT * FROM events");

But when i modify the code to this it doesnt work at all.
Code: [Select]
$result_rows = mysql_query("SELECT * FROM events WHERE category = 'adults' ORDER BY 'date'");

Any idea what is wrong?

I have a mysql table that holds data for cars - each car has it's own ID, name, and year. Some cars are repeated.

Example: (ID - year - car name)
0001 - 2009 - Honda Civic
0002 - 2008 - Toyota Prius
0003 - 2009 - Honda Civic
0004 - 2008 - Toyota Prius
0005 - 2008 - Toyota Prius
0006 - 2007 - Honda Civic

How would I count how many of the same type of cars I have in that table and then display the quantity next to the car name? Like for the above example it would be:

2009 Honda Civic: 2
2007 Honda Civic: 1
2008 Toyota Prius: 3

Thanks in advance for any help  :D

Hi

I'm not at all good at PHP and haven't really played with it for some years, so bare with me if code examples are old

I'm looking for a simple solution to count rows (MySQL), without using multiple queries.

The below code is quite simple, counting rows where 'Department' is 'Sales':

$sql ="SELECT * FROM DB WHERE Department ='Sales'";
$result=mysqli_query($con,$sql);
$rowcount=mysqli_num_rows($result);

But what If I need to count the rows for the different departments?:

$sql ="SELECT * FROM DB WHERE Department ='Sales'";
$result=mysqli_query($con,$sql);
$rowcount=mysqli_num_rows($result);

$sql ="SELECT * FROM DB WHERE Department ='Support'";
$result=mysqli_query($con,$sql);
$rowcount=mysqli_num_rows($result);

$sql ="SELECT * FROM DB WHERE Department ='Online'";
$result=mysqli_query($con,$sql);
$rowcount=mysqli_num_rows($result);

There must be a better / simpler way to this with a single query?

Hope for someone to show me the light

 

PS. Once this is resolved, I'll probably need further help, to accomplish my final result.

PHP/MYSQL - - -  Thank you in advance for any help.   Quick question.   I am calc'ing whether each line db output is a win/loss/tie below.   Outputting $res in each line.     Is there a simple way to COUNT the number of instances where $ res = "win" or loss or tie?

I'd like to put an "overall" record at the top of the output.   For example, for a given query, this chosen team's record is x WINS, Y Losses, Z TIES.   Win/Loss/Tie is NOT a field in the db table.

I know how to pull the total # of records pulled, but not this.

Example
User pulled a certain team to see game scores.

7 - 3 - 2 is their record. is what i'm trying to figure out

Game       Result       Score     Score opp     Date
game10     WIN *          7            2                blah
game11     LOSS*         2             3                ....
....

Code: [Select]
//winloss begin works * above is a result of this code
    if ($row['sch_uba_score'] > $row['sch_opp_score'])
        $res = 'Win';
    elseif ($row['sch_uba_score'] < $row['sch_opp_score'])
        $res = 'Loss';
    else
        $res = 'Tie';

// winloss end works

month   a0   a1   a2   a3   a4   a5   a6   a7   a8   a9   a10   a11   a12   a13   a14   a15   a16   a17   a18   a19   a20   a21   a22   a23   a24   a25   a26   a27   a28   a29   a30   a31
         1   puudu   01   02   03   04   05   06   07   08   09   10   11   12   13   14   15   16   17   18   19   [20]   [21]   22   23   24   25   [26]   27   28   29   30   31
         2   puudu   01   02   03   04   05   06   07   08   09   10   11   12   13   14   15   16   17   18   19   20   21   22   23   24   25   26   27   28           
         3   puudu   01   02   03   04   05   06   07   08   09   10   11   12   13   14   15   16   17   18   19   20   21   22   23   24   25   26   27   28   29   30   31
         4   puudu   01   02   03   04   05   06   07   08   09   10   11   12   13   14   15   16   17   18   19   20   21   22   23   24   25   26   27   28   29   30   
         5   puudu   01   02   03   04   05   06   07   08   09   10   11   12   13   14   15   16   17   18   19   20   21   22   23   24   25   26   27   28   29   30   31
         6   puudu   01   02   03   04   05   06   07   08   09   10   11   12   13   14   15   16   17   18   19   20   21   22   23   24   25   26   27   28   29   30   
         7   puudu   01   02   03   04   05   06   07   08   09   10   11   12   13   14   15   16   17   18   19   20   21   22   23   24   25   26   27   28   29   30   31
         8   puudu   01   02   03   04   05   06   07   08   09   10   11   12   13   14   15   16   17   18   19   20   21   22   23   24   25   26   27   28   29   30   31
         9   puudu   01   02   03   04   05   06   07   08   09   10   11   12   13   14   15   16   17   18   19   20   21   22   23   24   25   26   27   28   29   30   
         10   puudu   01   02   03   04   05   06   07   08   09   10   11   12   13   14   15   16   17   18   19   20   21   22   23   24   25   26   27   28   29   30   31
         11   puudu   01   02   03   04   05   06   07   08   09   10   11   12   13   14   15   16   17   18   19   20   21   22   23   24   25   26   27   28   29   30   
         12   puudu   01   02   03   04   05   06   07   08   09   10   11   12   13   14   15   16   17   18   19   20   21   22   23   24   25   26   27   28   29   30   31


;
i need help .. with calculating how many days are between example:  january = 1  ; day =23 to feb =2; day 23
in php ... how can i do that

It's late and I'm not thinking straight. I'm posting this question. Hopefully I get a reply in the morning.

I have two tables.

TABLE 1 - PRODUCTS

TABLE 2 - LIKES

I am a User who has posted these products. I want to find out ALL the Likes I have received for all my products. Here is my code.

$find_products = $db->prepare("SELECT product_id FROM products WHERE user_id = :user_id");
$find_products->bindParam(':user_id', $my_user_id);
$find_products->execute();
$result_products = $find_products->fetchAll(PDO::FETCH_ASSOC);
if(count($result_products) > 0) {
  foreach($result_products as $row) {
    $product_id = $row['product_id'];

    $find_likes = $db->prepare("SELECT like_id FROM product_likes WHERE product_id = :product_id");
    $find_likes->bindParam(':product_id', $product_id);
    $find_likes->execute();
    $result_likes = $find_likes->fetchAll(PDO::FETCH_ASSOC);
    if(count($result_likes) > 0) {
      $get_likes  = 0;
      foreach($result_likes as $row) {
        $get_likes++;
      }
    }
  }
}

The issue with the above code is that It only shows the Likes if I echo inside the foreach loop. And it'll show combined Likes from each of my products. But I want to actually combine ALL the Likes from ALL the products and be able show them as a single number, outside of the foreach loop.

How do I do that?

Edited August 17, 2019 by imgrooot

Hi Everyone,

I am working on implementing a blog comment system using the query below to display comments. My question is what is the best way to do a row count for the id column with this query or do I need to do a second db query to accomplish this? The purpose of this is to echo out the number of comments for that post, before displaying them.

Any help is appreciated.

Thanks in advance,

kaiman


<?php
// get url variables
$post_id = mysql_real_escape_string($_GET['id']);

include ("../../scripts/includes/nl2p.inc.php");

// connects to server and selects database
include ("../../scripts/includes/dbconnect.inc.php");

// table name
$tbl_name3="blog_comments";

// select info from comments database
$result3 = mysql_query ("SELECT count(*) FROM $table_name3 WHERE id='$post_id' ORDER BY id DESC LIMIT 1") 
or trigger_error("A mysql error has occurred!");
if (mysql_num_rows($result3) > 0 ) {
while($row = mysql_fetch_array($result3)) {
extract($row);

// display number of comments


// display date
$row_date = strtotime($row['date']);
putenv("TZ=America/Denver");
echo "<p class=\post\">On ".date('F, jS, Y', $row_date)." ";

// display commenter name
if($row['url'] == "") { 
echo $row['name']." wrote:</p>\n"; 
} 
     else { 
echo "<a href=\"".$row['url']."\" target=\"_blank\">".$row['name']."</a> wrote:</p>\n"; 
} 

// display content
$comments = $row['comment'];
echo nl2p($comments);
}
}
else {
echo "<p class=\"large_spacer\">No Comments</p>";
}
?>

Hey guys! I've been having trouble with this all day. I'm wanting to display my results in rows. Like, 4 results in 1 row, then another 4, then another 4, etc. like this:
IMAGE  IMAGE IMAGE IMAGE
IMAGE IMAGE IMAGE IMAGE
IMAGE IMAGE IMAGE IMAGE

I'm nto sure how to do that. I want to display pictures. Here is my code for the page:
bag.php:
Code: [Select]
<?php
session_start();
include("config536.php");
?>
<html>
<head>
<link rel="stylesheet" type="text/css" href="style.css" />
</head>

<?php
if(!isset($_SESSION['username'])) {
echo "<ubar><a href=login.php>Login</a> or <a href=register.php>Register</a></ubar><content><center><font size=6>Error!</font><br><br>You are not Logged In! Please <a href=login.php>Login</a> or <a href=register.php>Register</a> to Continue!</center></content><content><center><font size=6>Inventory</font><br><br></center></content>";
}

if(isset($_SESSION['username'])) {
echo "<nav>$shownavbar</nav><ubar><img src=/images/layout/player.gif><a href=status.php>$showusername</a>.......................<img src=/images/layout/coin.gif> $scredits</ubar><content><center><font size=6>Inventory</font><br><br>";

$action = $_GET['action'];
$gid = $_GET['itemid'];

$irow = "SELECT * FROM uitems WHERE username='$showusername'";
$iquery = mysql_query($irow);
while($ir = mysql_fetch_array($iquery)) {
$uid = $ir['uitemid'];
$iid = $ir['theitemid'];
$iun = $r['username'];
$il = $ir['location'];


$tirow = "SELECT * FROM items WHERE itemid='$iid'";
$tiquery = mysql_query($tirow);
while($tir = mysql_fetch_array($tiquery)) {
$tiid = $tir['itemid'];
$tin = $tir['name'];
$tiim = $tir['image'];
$tid = $tir['description'];
$tirr = $tir['rarity'];
$tit = $tir['type'];
$tiu = $tir['uses'];
$tis = $tir['strength'];
$tide = $tir['defense'];
$tih = $tir['heals'];

echo "<img src=/images/items/$tiim><br>$tin<br><br>";
}
}

}
?>

</html>I have no errors, everything works great! It's just I'm not sure how to display them the way I want them. Right now they are displayed like this:
IMAGE
IMAGE
IMAGE
IMAGE

Any help is greatly appreciated, thank you!

I have a html table displaying data from mysql database. I can count rows properly with mysql_num_rows but is there a way to echo which row number it is. What I want to do is count the rows ordered by cities and echo row number. Thanks for any help.

The following works, but I don't want to have to write 50 query statements for 50 states.  How can I just write one query (using a variable I presume) and then echo the variable count each time for each state?  I'm just trying to list the total number of rows for each state, that exist in the db. 

<?         
$result = mysql_query("SELECT * FROM mytable WHERE source = 'alabama'") 
or die(mysql_error());  
$num_rows = mysql_num_rows($result);

?>
 
href="/state/alabama/">alabama</a> (<?php echo("$num_rows");?>) <br>
 
 <?
$result = mysql_query("SELECT * FROM mytable WHERE source = 'alaska'") 
or die(mysql_error());  
$num_rows = mysql_num_rows($result);
?>
href="/state/alaska/">alaska</a>  (<?php echo("$num_rows");?>) <br>   

 
The above would give output such as:
alabama (122)
alaska (212)

Folks,

Having trouble here. Forgot how you use the COUNT. Not interested in the num_rows due to it being slow compared to COUNT.

I have users table like this:

id|username|sponsor_username

0|barand|requinix

1|phpsane|alison

2|mickey_mouse|requinix

Now, I want to check if a sponsor username exists or not. Such as does the entry "requinix" exists or not in one of the rows in the "sponsor_username" column.

In our example it does twice and so the variable $sponsor_username_count should hold the value "2". Else hold "0".

I get error:

Fatal error: Uncaught mysqli_sql_exception: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '?' at line 1 

 

My code:

	$stmt_1 = mysqli_prepare($conn,"SELECT COUNT(sponsor_username) from users = ?"); 
            mysqli_stmt_bind_param($stmt_1,'s',$sponsor_username_count); 
            mysqli_stmt_execute($stmt_1); 
            
            //Show error if 'users' tbl was not successfully queried". 
            if (!$stmt_1) 
            { 
                echo "ERROR 1: Sorry! Our system is currently experiencing a problem loading this page!"; 
                exit(); 
            } 
            else 
            { 
                mysqli_stmt_bind_result($stmt_1,$sponsor_username_count);     
                mysqli_stmt_fetch($stmt_1); 
                mysqli_stmt_close($stmt_1); 
                
                //Check if Sponsor Username in Url ($_GET) is already registered or not. If not then show "Invalid Url" or Link message. 
                if ($sponsor_username_count < 1) 
                { 
                    echo "<b>Invalid Url or Link!<br> Invalid Sponsor: \"$sponsor_username\"!</b><?php "; 
                    exit(); 
                } 
            } 
	

Assuming I have a result object:

$result = mysqli_query($sql_string);

How can I get specific rows, i.e. multiple rows are returned 8 total, but I was rows 2-6. Thanks.

what Im basically trying to do is just like a phpmyadmin function... you select rows you want to update with a checkbox and then it takes you to a page where the rows that are clicked are shown in forms so that you can view and edit info in them... and then have 1 submit button to update them all at once.

I insert data in mysql table row using multiple method : 1#2#3 . 1 is ID of country, 2 is Id of state, 3 is ID of town . now i have this table for real estate listings. for each list(home) i have country/state/town (1#2#3). in country table i have list of country - in country table i have list of state - in country table i have list of town. i need to The number of houses in country / state / town . my mean is :
Code: [Select]
USA [ 13 ] <!-- This Is equal of alabama+alaska+arizona -->
----Alabama [8] <!-- This Is equal of Adamsville+Addison+Akron -->
-------Adamsville [2]
-------Addison[5]
-------Akron[1]
......(list of other City)
----Alaska [ 3 ]
-------Avondale[3]
......(list of other City)
----Arizona [ 2 ]
-------College[2]
......(list of other City)
Lisintg Table :

Code: [Select]
ID -- NAME -- LOCATION -- DATEJOIN -- ACTIVE
 1 -- TEST -- 1#2#3    -- 20110101 -- 1
 2 -- TEST1 -- 1#2#3    -- 20110101 -- 1
 3 -- TEST2 -- 1#3#5    -- 20110101 -- 1
 4 -- TEST3 -- 1#7#6    -- 20110101 -- 1
Country Table :

Code: [Select]
id       -- name 
 1        -- USA 
stats Table :

Code: [Select]
id        -- countryid -- name 
 1        -- 1             -- albama
 2        -- 1             -- alaska
 3        -- 1             -- akron
town Table :
Code: [Select]
id        -- countryid -- statsid -- name 
 1        -- 1             -- 1         -- adamsville
 2        -- 1             -- 1         -- addison
 3        -- 1             -- 1         -- akron
Thanks For Any Help.

I'm trying to write a php page that displays data from a JOIN query for a specific ID

table view

brandinfo

ID, brand, discounttype

1, antioni, no discount

brandproducts

brandID, producttype, price

1, Tshirt, 20.00
1, Pants, 30.00
1, Shoe, 40.00


the returned result is

1 antioni, no discount, Tshirt, 20.00,
2 antioni, no discount, Pants, 30.00
3 antioni, no discount, Shoe 40.00

The way I want the page to be displayed is

------------------


Antioni (at the top)

Table

1. Tshirt 20.00
2. Pants 30.00
3. Shoe 40.00


no discount (at the bottom)
----------------------------

How should I construct the PHP page from the result since they're retrieved as rows?