获取所有结果 MYSQL 表 - 每行 6 项。 如果存在少于 6 个结果，列出广告模板？

Question

I have a total of 8 results/users in my MYSQL table 'users'.

I want to display 6 results/user profiles per row. This is what I'm currently getting as the result:

1st Result.   2nd Result.  3rd Result.  4th Result.   5th Result.  6th Result

7th Result.   8th Result.    No More Results..... 

Not all users will have a profile image, so my code also checks for a profile image and if it can't find one it will use a template profile image instead.

It is a requirement for each row to be complete with a minimum of 6 results/profiles. Where there is not enough results/profiles to complete a row, then I am trying to fill in the remaining non existent profiles with an advert template 'advertise your profile here'.

The advert template image is stored in the following directory:

<div><img src="data/profile/0/main/advert.jpg" alt="Profile" height="100%" width="100%"></div>';

This is my desired result:

1st Result.   2nd Result.  3rd Result.  4th Result.   5th Result.  6th Result

7th Result.   8th Result.    9 Ad Here.  10 Ad Here.  11 Ad Here.  12 Ad Here.

Here is the code that I currently have.

   <?php $sql = "SELECT * FROM users WHERE status = 'active' AND usertype = 'advertiser'";
        $result = $conn->query($sql)->fetch_all(MYSQLI_ASSOC);


        $limit = 6; 
        $chunks = array_chunk($result, $limit);

        foreach($chunks as $chunk){
        echo '<div id="category_case_holder">';

        foreach($chunk as $chunkItem){



        $i = htmlspecialchars($chunkItem['user_id']);
        $filename = "data/profile/$i/main/profile.jpg"; 
        if (file_exists($filename)) {
        echo '<div id="prime"><a href="profile.php?id='.htmlspecialchars($chunkItem['user_id']).'"><img src="data/profile/'.htmlspecialchars($chunkItem['user_id']).'/main/profile.jpg" alt="Profile" height="100%" width="100%"></a></div>';
        }else{
        echo '<div id="prime"><a href="profile.php?id='.htmlspecialchars($chunkItem['user_id']).'"><img src="data/profile/0/main/profile.jpg" alt="Profile" height="100%" width="100%"></a></div>';

        } }

        echo '</div>';

        } ?> 

However, the code is still not giving the desired result. Please can someone help me improve/amend the code to get it to give me the result i require. Thank you.

Answer 1

I am copying your complete code because i change some formatting, which makes code more readable.

The inserted pieces of code use the variable $nrProfilesOnScreen

You might need to change the line that contains '?????'....

<?php    
    $conn = new mysqli("localhost", "root", "******", "test");
    $sql = "SELECT * FROM users WHERE status = 'active' AND usertype = 'advertiser'";
    $result = $conn->query($sql)->fetch_all(MYSQLI_ASSOC);

    $limit = 6; 
    $chunks = array_chunk($result, $limit);
    $nrProfilesOnScreen = 0;

    foreach($chunks as $chunk){
        echo '<div id="category_case_holder">';

        foreach($chunk as $chunkItem){

            $i = htmlspecialchars($chunkItem['user_id']);
            $filename = "data/profile/$i/main/profile.jpg"; 
            if (file_exists($filename)) {
                echo '<div id="prime"><a href="profile.php?id='.htmlspecialchars($chunkItem['user_id']).'"><img src="data/profile/'.htmlspecialchars($chunkItem['user_id']).'/main/profile.jpg" alt="Profile" height="100%" width="100%"></a></div>';
            }else{
                echo '<div id="prime"><a href="profile.php?id='.htmlspecialchars($chunkItem['user_id']).'"><img src="data/profile/0/main/profile.jpg" alt="Profile" height="100%" width="100%"></a></div>';
            } 
            $nrProfilesOnScreen++;
        }

        for (; $nrProfilesOnScreen % $limit !=0; ) {
            echo '<div id="prime"><a href="profile.php?id='.'?????'.'"><img src="data/profile/0/main/profile.jpg" alt="Profile" height="100%" width="100%"></a></div>' . PHP_EOL;
            $nrProfilesOnScreen++;
        }

       echo '</div>';

    }

?> 

The % operator is explained here:https://www.php.net/manual/en/language.operators.arithmetic.php

The for (;$nrProfilesOnScreen % $limit;) { } may seem strange, it's an alternative for while ($nrProfilesOnScreen % $limit !=0) {}