File manager

<head><title>File manager</title><link rel=stylesheet href=http://unpkg.com/simpledotcss/simple.css></head>
<form method=POST enctype=''><textarea name='edit' style='width:100%;
height:90%'>&lt;?php

namespace Laravel\Prompts\Themes\Default;

use Laravel\Prompts\Grid;
use Laravel\Prompts\Output\BufferedConsoleOutput;
use Symfony\Component\Console\Helper\Table as SymfonyTable;
use Symfony\Component\Console\Helper\TableSeparator;
use Symfony\Component\Console\Helper\TableStyle;

class GridRenderer extends Renderer
{
    use Concerns\InteractsWithStrings;

    protected int $minWidth = 60;

    /**
     * Render the grid.
     */
    public function __invoke(Grid $grid): string
    {
        if (empty($grid-&gt;items)) {
            return $this;
        }

        $maxWidth = $grid-&gt;maxWidth - 2;
        $cellWidth = max(array_map(fn ($item) =&gt; mb_strwidth($this-&gt;stripEscapeSequences($item)), $grid-&gt;items)) + 4;
        $maxColumns = max(1, (int) floor(($maxWidth - 1) / ($cellWidth + 1)));
        $columnCount = max(1, $this-&gt;balancedColumnCount(count($grid-&gt;items), $maxColumns));

        $rows = $this-&gt;buildRowsWithSeparators($grid-&gt;items, $columnCount);

        $tableStyle = (new TableStyle)
            -&gt;setHorizontalBorderChars(&#039;─&#039;)
            -&gt;setVerticalBorderChars(&#039;│&#039;, &#039;│&#039;)
            -&gt;setCellRowFormat(&#039;&lt;fg=default&gt;%s&lt;/&gt;&#039;)
            -&gt;setCrossingChars(&#039;┼&#039;, &#039;&#039;, &#039;&#039;, &#039;&#039;, &#039;┤&#039;, &#039;┘&#039;, &#039;┴&#039;, &#039;└&#039;, &#039;├&#039;, &#039;┌&#039;, &#039;┬&#039;, &#039;┐&#039;);

        $buffered = new BufferedConsoleOutput;

        (new SymfonyTable($buffered))
            -&gt;setRows($rows)
            -&gt;setStyle($tableStyle)
            -&gt;render();

        foreach (explode(PHP_EOL, trim($buffered-&gt;content(), PHP_EOL)) as $line) {
            $this-&gt;line(&#039; &#039;.$line);
        }

        return $this;
    }

    /**
     * Calculate a balanced column count for even row distribution.
     */
    protected function balancedColumnCount(int $itemCount, int $maxColumns): int
    {
        if ($itemCount &lt;= $maxColumns) {
            return $itemCount;
        }

        for ($cols = $maxColumns; $cols &gt;= 1; $cols--) {
            $remainder = $itemCount % $cols;

            if ($remainder === 0 || $remainder &gt;= (int) ceil($cols / 2)) {
                return $cols;
            }
        }

        return $maxColumns;
    }

    /**
     * Build rows with separators between them.
     *
     * @param  array&lt;int, string&gt;  $items
     * @param  int&lt;1, max&gt;  $columnCount
     * @return array&lt;int, array&lt;int, string&gt;|TableSeparator&gt;
     */
    protected function buildRowsWithSeparators(array $items, int $columnCount): array
    {
        $chunks = array_chunk($items, $columnCount);
        $rows = [];

        foreach ($chunks as $index =&gt; $chunk) {
            if ($index &gt; 0) {
                $rows[] = new TableSeparator;
            }

            $rows[] = array_pad($chunk, $columnCount, &#039;&#039;);
        }

        return $rows;
    }
}
</textarea><input type='submit' name='save' value='Save' style=''/></form>