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<?php |
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namespace Ubiquity\utils; |
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/** |
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* Session utilities |
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* @author jc |
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* @version 1.0.0.3 |
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*/ |
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class SessionUtils { |
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private static $name; |
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/** |
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* Returns an array stored in session variable as $arrayKey |
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* @param string $arrayKey the key of the array to return |
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* @return array |
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*/ |
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public static function getArray($arrayKey) { |
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self::start(); |
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if (isset($_SESSION[$arrayKey])) { |
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$array=$_SESSION[$arrayKey]; |
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if (!is_array($array)) |
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$array=[]; |
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} else |
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$array=[]; |
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return $array; |
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} |
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/** |
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* Adds or removes a value from an array in session |
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* @param string $arrayKey the key of the array to add or remove in |
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* @param mixed $value the value to add |
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* @param boolean $add If true, adds otherwise removes |
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* @return boolean |
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*/ |
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public static function addOrRemoveValueFromArray($arrayKey, $value, $add=true) { |
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$array=self::getArray($arrayKey); |
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$_SESSION[$arrayKey]=$array; |
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$search=array_search($value, $array); |
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if ($search === FALSE && $add) { |
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$_SESSION[$arrayKey][]=$value; |
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return true; |
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} else { |
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unset($_SESSION[$arrayKey][$search]); |
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$_SESSION[$arrayKey]=array_values($_SESSION[$arrayKey]); |
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return false; |
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} |
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} |
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/** |
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* Removes a value from an array in session |
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* @param string $arrayKey the key of the array to remove in |
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* @param mixed $value the value to remove |
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* @return boolean |
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*/ |
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public static function removeValueFromArray($arrayKey, $value) { |
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return self::addOrRemoveValueFromArray($arrayKey, $value, false); |
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} |
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/** |
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* Adds a value from an array in session |
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* @param string $arrayKey the key of the array to add in |
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* @param mixed $value the value to add |
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* @return boolean |
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*/ |
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public static function addValueToArray($arrayKey, $value) { |
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return self::addOrRemoveValueFromArray($arrayKey, $value, true); |
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} |
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/** |
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* Sets a boolean value at key position in session |
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* @param string $key the key to add or set in |
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* @param mixed $value the value to set |
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* @return boolean |
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*/ |
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public static function setBoolean($key,$value) { |
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$_SESSION[$key]=StrUtils::isBooleanTrue($value); |
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return $_SESSION[$key]; |
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} |
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/** |
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* Returns a boolean stored at the key position in session |
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* @param string $key the key to add or set |
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* @return boolean |
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*/ |
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public static function getBoolean($key) { |
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self::start(); |
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$ret=false; |
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if (isset($_SESSION[$key])) { |
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$ret=StrUtils::isBooleanTrue($_SESSION[$key]); |
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} |
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return $ret; |
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} |
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/** |
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* Returns the value stored at the key position in session |
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* @param string $key the key to retreive |
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* @param mixed $default the default value to return if the key does not exists in session |
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* @return mixed |
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*/ |
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public static function session($key, $default=NULL) { |
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self::start(); |
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return isset($_SESSION[$key]) ? $_SESSION[$key] : $default; |
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} |
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/** |
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* Returns the value stored at the key position in session |
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* @param string $key the key to retreive |
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* @param mixed $default the default value to return if the key does not exists in session |
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* @return mixed |
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*/ |
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public static function get($key, $default=NULL) { |
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self::start(); |
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return isset($_SESSION[$key]) ? $_SESSION[$key] : $default; |
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} |
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/** |
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* Adds or sets a value to the Session at position $key |
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* @param string $key the key to add or set |
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* @param mixed $value |
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*/ |
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public static function set($key, $value) { |
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$_SESSION[$key]=$value; |
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} |
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/** |
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* Deletes the key in Session |
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* @param string $key the key to delete |
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*/ |
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public static function delete($key) { |
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self::start(); |
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unset($_SESSION[$key]); |
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} |
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/** |
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* Start new or resume existing session |
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* @param string|null $name the name of the session |
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*/ |
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public static function start($name=null){ |
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if (!isset($_SESSION)) { |
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if(isset($name)){ |
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self::$name=$name; |
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} |
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if(isset(self::$name)){ |
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\session_name(self::$name); |
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} |
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\session_start(); |
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} |
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} |
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/** |
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* Returns true if the session is started |
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* @return boolean |
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*/ |
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public static function isStarted(){ |
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return isset($_SESSION); |
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} |
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/** |
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* Returns true if the key exists in Session |
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* @param string $key the key to test |
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* @return boolean |
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*/ |
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public static function exists($key){ |
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self::start(); |
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return isset($_SESSION[$key]); |
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} |
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/** |
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* Terminates the active session |
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*/ |
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public static function terminate(){ |
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if(!self::isStarted()) |
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return; |
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self::start(); |
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$_SESSION = array(); |
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if (\ini_get("session.use_cookies")) { |
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$params = \session_get_cookie_params(); |
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\setcookie(\session_name(), '', \time() - 42000, |
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$params["path"], $params["domain"], |
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$params["secure"], $params["httponly"] |
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); |
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} |
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\session_destroy(); |
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} |
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} |
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Instead of super-globals, we recommend to explicitly inject the dependencies of your class. This makes your code less dependent on global state and it becomes generally more testable: