Get images from a dir and return HTML accordingly with passed template.

SiteImages.Class.php

<?php

    class SiteImages{

    public string $path = '';
    public string $template = '';

    public function __construct(string $path, string $template){
        $this->setPath($path);
        $this->setTemplate($template);
    }

    public function setPath(string $path) : void{
        if(empty($this->path)){
            if(is_dir($path)){
                $this->path = $path;
            }
        }
    }

    public function setTemplate($template){
        $this->template = $template;
    }

    public function getFiles() : array{
        if(!empty($this->path)){
            $files = scandir($this->path);
            $items = array_diff($files, array('.','..','.DS_Store')); 
            return array_values($items);
        }else{
            return [];
        }              
    }

    public function getImageRowsHtml(int $numColumns, array $items, string $vSpace='') : string{
        
        $output = '<div class="row">';
        $numItems = count($items);
        
        if($numItems>0){

            for ($i=0; $i<$numItems; $i++) {

                $image = $this->path.$items[$i];

                if($i > 0 && $i % $numColumns == 0){
                    $output .= '</div><div class="row '.$vSpace.'">';        
                }
                $output .= str_replace('#image#', $image, $this->template);
            }

            $output .= '</div>';
            return $output;   

        }else{
            return 'Empty items list provided. Cannot proceed.';
        } 
    }

}