这个是什么问题呢？

PHP Deprecated:  Methods with the same name as their class will not be constructors in a future version of PHP; Services_JSON has a deprecated constructor

class DataUtil
{
    function DataUtil($use = 0)
    {
        $this->use = $use;
    }

改成

class DataUtil
{
    function __construct($use = 0)
    {
        $this->use = $use;
    }