lotes.php

<?php

public function distribuirLotes($resultSet)
{   
    $lotes = [];

    foreach ($resultSet as $row) {
        $lotes = array_merge($lotes, $this->organizarIntervalos($row));
    }
    
    return $lotes;
}

private function organizarIntervalos($row)
{
    $sequencias = $row->sequencias;
    
    sort($sequencias);

    $ranges = [];
    $lastIndex = $sequencias[count($sequencias) - 1];

    $temp = [];
    for ($i = $sequencias[0]; $i <= $lastIndex; $i++) { 
        if (in_array($i, $sequencias)) {
            $temp[] = $i;
        } 

        if ((! in_array($i, $sequencias) || $i == $lastIndex) && ! empty($temp)) {
            $ranges[] = [
                'evento_tipo_id' => $row->evento_tipo_id,
                'evento_tipo' => $row->evento_tipo,
                'lote_inicial' => $temp[0], 
                'lote_final' => end($temp)
            ];
            $temp = [];
        }
    }

    return $ranges;
}

ranges.php

<?php

function findRanges($numbers)
{   
    sort($numbers);

    $ranges = [];
    $lastIndex = $numbers[count($numbers) - 1];

    $temp = [];
    for ($i = $numbers[0]; $i <= $lastIndex; $i++) { 
        if (in_array($i, $numbers)) {
            $temp[] = $i;
        } 

        if ((! in_array($i, $numbers) || $i == $lastIndex) && ! empty($temp)) {
            $ranges[] = ['min' => $temp[0], 'max' => end($temp)];
            $temp = [];
        }
    }

    return $ranges;
}