vars.class.php

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<?php
final class http_vars {

        private static $instance;

        private function __construct() {}

        public static function getInstance() {
                if (is_null(self::$instance))
                        self::$instance = new http_vars();
                return self::$instance;
        }

        public function getVar($prm) {
                if (is_string($prm))
                        $p = array('name'=>$prm);
                else
                        $p = &$prm;
                $ret = null;
                if (config::initTab($p, array(
                                        'name'=>null,
                                        'nameIn'=>'',
                                        'method'=>array('post', 'get'),
                                        'trim'=>true
                                ))) {
                        $matches = explode('|', str_replace(
                                array('[]', '][', '[', ']'),
                                array('', '|', '|', ''),
                                $p['name']
                        ));
                        $name = empty($matches)? array($p['name']): $matches;
                        if (is_array($p['method'])) {
                                for($i = 0; $i < count($p['method']) && $ret === null; $i++) {
                                        $act = '_'.strtoupper($p['method'][$i]);
                                        $ret = utils::getValInArray($GLOBALS[$act], $name);
                                }
                        } else {
                                $act = '_'.strtoupper($p['method']);
                                $ret = utils::getValInArray($GLOBALS[$act], $name);
                        }
                        if ($act == '_GET' && !is_null($ret))
                                $ret = is_array($ret) ? array_map('urldecode', $ret) : urldecode($ret);
                        if ($p['trim'] && !is_null($ret) && !is_array($ret))
                                $ret = trim($ret);
                }
                $prm = array_merge(array('default'=>null), $p);
                if (is_array($prm['default'])) {
                        if (is_null($ret) || !in_array($ret, $prm['default'])) {
                                $ret = $prm['default'][0];
                        }
                } else if (is_null($ret))
                        $ret = $prm['default'];

                $ret = utils::htmlIn($ret);
                if (is_array($ret) && !empty($p['nameIn']))
                        return array_key_exists($p['nameIn'], $ret) ? $ret[$p['nameIn']] : null;
                else
                        return $ret;
        }

        public function post($name, $default=null) {
                return $this->getVar(array(
                        'name'=>$name,
                        'method'=>'post',
                        'default'=>$default));
        }

        public function getVars($method='post') {
                $act = '_'.strtoupper($method);
                return utils::htmlIn($GLOBALS[$act]);
        }

        public function posts() {
                return $this->getvars('post');
        }

        public function gets() {
                return $this->getvars('get');
        }

        public function get($name, $default=null) {
                return $this->getVar(array(
                        'name'=>$name,
                        'method'=>'get',
                        'default'=>$default));
        }

        public function session($name, $default=null) {
                return $this->getVar(array(
                        'name'=>$name,
                        'method'=>'session',
                        'default'=>$default));
        }

        public function cookie($name, $default=null) {
                return $this->getVar(array(
                        'name'=>$name,
                        'method'=>'cookie',
                        'default'=>$default));
        }

}