<?php
class T {

    private $html;

    public function __call($tag, $args) {

        $html = '';
        $content = '';
        $attributes = [];
        $childs = [];

        foreach($args as $arg){
            if (is_string($arg)){
                $content = $arg;
            } elseif (is_array($arg)){
                if ($this->is_assoc_array($arg)){
                    $attributes = $arg;
                } else {
                    $childs = $arg;
                }
            } elseif (is_callable($arg)){
                $childs = $arg();
            }
        }

        $html .= "<{$tag}";

        if ($attributes) {
            $attr_str = ' ';
            foreach($attributes as $name=>$val){
                $attr_str .= "{$name}=\"{$val}\" ";
            }
            $html .= rtrim($attr_str);
        }

        $html .= '>';

        if ($content){
            if ($childs){
                $html .= "\n\t";
            }
            $html .= $content;
        }

        if ($childs){
            foreach($childs as $child){
                $child_rows = explode("\n", $child);
                foreach($child_rows as $row){
                    $html .= "\n\t" . $row;
                }
            }
            $html .= "\n";
        }

        if ($content || $childs) {
            $html .= "</{$tag}>";
        }

        return $html;

    }

    public function create($html){
        return $this->html = $html;
    }

    public function dump(){
        return $this->html;
    }

    private function is_assoc_array($array){
        return array_keys($array) !== range(0, count($array) - 1);
    }

}