PHPのページUtil

PageUtils.php

<?php
class PageUtil {
    
    private $values = array();

    public function put($name, $value) {
        $this->values[$name] = $value;
    }

    public function val(...$names) {
        $val =  $this->values;
        foreach ($names as $name) {
            $val = $val[$name];
        }
        return new PageValue($val, true);
    }

    public function unescapeVal(...$names) {
        $val =  $this->values;
        foreach ($names as $name) {
            $val = $val[$name];
        }
        return new PageValue($val, false);
    }

}

class PageValue {

    private $value;
    private $isEscapeEnable;

    public function __construct($value, $isEscapeEnable = true) {
        $this->value = $value;
        $this->isEscapeEnable = $isEscapeEnable;
    }

    public function format($format) {
        return new PageValue(sprintf($format, $this->value), $this->isEscapeEnable);
    }

    public function dateFormat($format) {
        return new PageValue(date($format, $this->value), $this->isEscapeEnable);
    }

    public function __toString() {
        $str;
        if (method_exists($this->value, "__toString")) {
            $str = $this->value->__toString();
        } else {
            $str = (string)$this->value;
        }

        return $this->isEscapeEnable ? htmlspecialchars($str) : $str;
    }

}