Cuz we love seeing "Notice: Undefined index: ..." SOOOOO much!

demo.php

<?php

require 'ValueHelper.php';

$get = new ValueHelper($_GET);
$page = $get->options->page->value(1);
$pageSize = $get->options->pageSize->value(10);
$searchTerm = $get->options->searchTerm->value();

ValueHelper.php

<?php

class ValueHelper
{
    /**
     * Construct method
     *
     * @param mixed $value
     */
    public function __construct($value)
    {
        $this->value = $value;
    }

    /**
     * Returns array item or null wrapped in another ValueHelper
     *
     * @param string $name
     *
     * @return ValueHelper
     */
    public function __get($name)
    {
        if (is_array($this->value) && array_key_exists($name, $this->value)) {
            $value = $this->value[$name];
        } else {
            $value = null;
        }
        return new ValueHelper($value);
    }

    /**
     * Returns value, or default if value is null
     *
     * @param mixed $default
     *
     * @return mixed
     */
    public function value($default = null)
    {
        return ($this->value === null) ? $default : $this->value;
    }
}