HTMLべんりツールこんな感じ?

Html.php

<?php
/**
 * Html static functions
 */
class Html
{
    /**
     * @param string $template
     * @param array $values
     * @return string
     */
    public static function template($template, $values)
    {
        return preg_replace_callback('/\{\{\s*([A-Za-z0-9_]+?)\s*\}\}/', function ($m) use ($values) {
            $name = $m[1];
            if (isset($values[$name])) {
                return $values[$name];
            } else {
                return $m[0];
            }
        }, $template);
    }

    /**
     * @param string $tag
     * @param array $attributes
     * @param string $content
     * @param bool $single
     * @return string
     */
    public static function tag($tag, $attributes, $content = null, $single = false)
    {
        $tag = strtolower($tag);
        $as = [];
        foreach ($attributes as $name => $value) {
            if (is_bool($value)) {
                if ($value === false) {
                    continue;
                }
                $value = $name;
            } elseif (is_array($value)) {
                // class / style like attributes
                if (static::isArrayAssoc($value)) {
                    $avs = [];
                    foreach ($value as $k => $v) {
                        $avs[] = $k . ':' . $v;
                    }
                    $value = implode('; ', $avs);
                } else {
                    $value = implode(' ', $value);
                }
            }
            $as[] = $name . '=' . $value;
        }

        $ass = empty($as) ? '' : ' ' . implode(' ', $as);
        $begin = "<{$tag}{$ass}>";
        $end = "</{$tag}>";
        if ($single) {
            return $begin;
        } elseif ($content) {
            return $begin . $content . $end;
        } else {
            return $begin . $end;
        }
    }

    /**
     * @param string $tag
     * @param array $attributes
     * @return string
     */
    public static function singleTag($tag, $attributes)
    {
        return static::tag($tag, $attributes, null, true);
    }

    /**
     * @param array $array
     * @return bool
     */
    private static function isArrayAssoc($array)
    {
        foreach (array_keys($array) as $i => $k) {
            if (is_integer($k) && $i != $k) {
                return true;
            }
        }
        return false;
    }
}