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<?php class PMXE_Input { protected $filters = array('stripslashes'); public function read($inputArray, $paramName, $default = NULL) { if (is_array($paramName) and ! is_null($default)) { throw new Exception('Either array of parameter names with default values as the only argument or param name and default value as seperate arguments are expected.'); } if (is_array($paramName)) { foreach ($paramName as $param => $def) { if (isset($inputArray[$param])) { $paramName[$param] = $this->applyFilters($inputArray[$param]); } } return $paramName; } else { return isset($inputArray[$paramName]) ? $this->applyFilters($inputArray[$paramName]) : $default; } } public function get($paramName, $default = NULL) { $this->addFilter('htmlspecialchars'); $this->addFilter('strip_tags'); $this->addFilter('esc_sql'); $this->addFilter('esc_js'); $result = $this->read($_GET, $paramName, $default); $this->removeFilter('htmlspecialchars'); $this->removeFilter('strip_tags'); $this->removeFilter('esc_sql'); $this->removeFilter('esc_js'); return $result; } public function post($paramName, $default = NULL) { return $this->read($_POST, $paramName, $default); } public function cookie($paramName, $default = NULL) { return $this->read($_COOKIE, $paramName, $default); } public function request($paramName, $default = NULL) { return $this->read($_GET + $_POST + $_COOKIE, $paramName, $default); } public function getpost($paramName, $default = NULL) { return $this->read($_GET + $_POST, $paramName, $default); } public function server($paramName, $default = NULL) { return $this->read($_SERVER, $paramName, $default); } public function addFilter($callback) { if ( ! is_callable($callback)) { throw new Exception(get_class($this) . '::' . __METHOD__ . ' parameter must be a proper callback function reference.'); } if ( ! in_array($callback, $this->filters)) { $this->filters[] = $callback; } return $this; } public function removeFilter($callback) { $this->filters = array_diff($this->filters, array($callback)); return $this; } protected function applyFilters($val) { if (is_array($val)) { foreach ($val as $k => $v) { $val[$k] = $this->applyFilters($v); } } else { foreach ($this->filters as $filter) { $val = call_user_func($filter, $val); } } return $val; } }