note 114557 added to function.session-id

Get a shared session. Sometimes is good can interchange messages and vars between one session and another, but PHP dont support this. I create this script that allows with session_id() change from current session to shared session (this is, info with scope to all sessions) for read and write info and back in to user session. The code: <?php ini_set('display_errors',1); error_reporting(E_ALL); function get_global($key){ //Get current session if(session_status()!=PHP_SESSION_ACTIVE)session_start(); $current_id=session_id(); session_write_close(); //Set a global session with session_id=1 session_id(1); session_start(); //Get superglobal value $value=null; if(isset($_SESSION[$key]))$value=$_SESSION[$key]; session_write_close(); //Set the before session session_id($current_id); session_start(); return $value; } function set_global($key,$value){ //Get current session if(session_status()!=PHP_SESSION_ACTIVE)session_start(); $current_id=session_id(); session_write_close(); //Set a global session with session_id=1 session_id(1); session_start(); //Set superglobal value $_SESSION[$key]=$value; session_write_close(); //Set the before session session_id($current_id); session_start(); } //Example //Begin my session normally session_start(); if(empty($_SESSION['count'])){ $_SESSION['count']=0; $_SESSION['color']="rgb(".rand(0,255).",".rand(0,255).",".rand(0,255).")"; } $_SESSION['count']++; $id=session_id(); //Get the superglobal $test=get_global("test"); //Set the superglobal test with empty array if this dont set if($test==null)$test=array(); //Get the superglobal $test=get_global("test"); //Set values for each reload page and save the session_id that create it $test[]="<span style='color:".$_SESSION['color']."'>Value: ".rand(0,100)." SessionID: $id</span><br>"; //Save the superglobal set_global("test",$test); //Show the superglobal foreach($test as $t){ echo $t; } echo "<b>Reloads = ".$_SESSION['count'].", <span style='color:".$_SESSION['color']."'>This my color</span></b>"; exit; ?> ---- Server IP: 194.8.30.16 Probable Submitter: 186.98.188.36 ---- Manual Page -- http://php.net/manual/en/function.session-id.php Edit -- https://master.php.net/note/edit/114557 Del: integrated -- https://master.php.net/note/delete/114557/integrated Del: useless -- https://master.php.net/note/delete/114557/useless Del: bad code -- https://master.php.net/note/delete/114557/bad+code Del: spam -- https://master.php.net/note/delete/114557/spam Del: non-english -- https://master.php.net/note/delete/114557/non-english Del: in docs -- https://master.php.net/note/delete/114557/in+docs Del: other reasons-- https://master.php.net/note/delete/114557 Reject -- https://master.php.net/note/reject/114557 Search -- https://master.php.net/manage/user-notes.php