Your logic is fine, just the limit to the for loop seems to be miscalculated.

Right now, for the variable group = (qty/limit)/limit, you have an extra division by limit here.

Whatever your need maybe for that division, you can simply use the value of tabs in your for loop condition, or assign it to another temporary variable its up to you.

for($i = 0; $i < $tabs; $i++) {
    echo "Group {$alphabet[$i]}".'<br>';
}

Cheers!

Maybe this could helps you

<?php

//$tabs = ($qty / $limit);
//$group = $tabs / $limit;


$alphabet   = array('A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z');
$return     = array('A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z');
$a          = array_chunk($return, 3);
//$a            = array_chunk($return, $limit);

$key        = 0;
$group      = array();
$r          = count($a);


foreach($alphabet as $v)
{
    if($key < $r)
    {
        if(!isset($group[$v]))
        {
            $group[$v] = array();
        }
        
        $group[$v] = $a[$key];
        
        $key++;
    }
}

print_r($group);

Here
https://www.tehplayground.com/bfmZOubIMdmBcjhu

I need to generate a dynamic text in accordance with the number of data that comes from the database.

In a html List, I need to display the following text as example:

• GROUP A
• GROUP B
• GROUP C

If the amount of records coming from the DB is only 1000, then only one item list is displayed. 1000 records equals 1 Item list.

The text must be dynamically changed as described above.
Each text in the list is displayed for 1000 records.

The code below statically displays 11 items

I’ve made a few tries on the code below but still to no avail.

This code is working, but it display only the static text.

$return .= "<div id='test_id'><ul>";    
    // $qty = 10424 / $limit = 1000 
    // $tabs = $qty / $limit = 10,424
    $tabs = $qty/$limit; 

    for ($i=0; $i < $tabs ; $i++) 
        { 
            $start = $i * $limit + 1;
            $end = ($i + 1) * $limit;            
                $color = 'classpA';
                $message = '<small>GROUP A</small>';
                if ($i < $tab_selected) {
                    $color = 'classB';
                    $message = 'RESERVED';
                }
                $active = $i == $tab_selected ? "active" : "";

                $return .= "<li class='tab {$color} {$active}' tab-id='#tab-".$i."'>

                <span class='available {$color}_text'><small>{$message}</small></span>

                <a href='#' class='{$color}_text'>".$start." - ".min($end,$qty)."</a></li>";
             
        }    
    $return .= "</ul></div>";

And this is that logic that i`m trying to apply

$qty = 18424;
$limit = 1000;
$tabs = ($qty / $limit);

$group = $tabs / $limit;

$alphabet = array('A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z');

for($i = 0; $i < $group; $i++) {
    echo "Group {$alphabet[$i]}".'<br>';
}

echo 'Qtd Group= '.$group.' Value Var Tabs= '.$tabs;

https://www.tehplayground.com/zyVzmaeYnTyyA4S9

How can I make the magic happen?