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<?php
class Session
{
// Start a new session
// Syntax: $session = new session();
function Session()
{
session_start();
}
// Set a variable in a current session
// Syntax: $session->set_var("Var name", "Value");
function set_var($varname,$varvalue)
{
if(!isset($varname) || !isset($varvalue) )
{
die('Function setvar( String $varname, mixed $value ) expects two parameters!');
}
if(phpversion() >= "4.1.0")
{
$_SESSION[$varname] = $varvalue;
}
if(!isset($GLOBALS[$varname]) )
{
$GLOBALS[$varname] = $varvalue;
}else{
global $HTTP_SESSION_VARS;
session_register($varname);
$GLOBALS['HTTP_SESSION_VARS'][$varname] = $varvalue;
if(!isset($GLOBALS[$varname]) )
{
$GLOBALS[$varname] = $varvalue;
}
}
}
// Get a variable from current session
// Syntax: $variable = $session->get_var("var name");
// echo "$variable" to get grabbed session variable
function get_var( $varname )
{
if(!isset($varname))
{
die('Function getvar( String $varname ) expects a parameter!');
}
if( phpversion() >= "4.1.0" )
{
if (isset($GLOBALS[$varname]))
{
return $GLOBALS[$varname];
}
elseif (isset($GLOBALS['_SESSION'][$varname]))
{
$GLOBALS[$varname] = $GLOBALS['_SESSION'][$varname];
return $GLOBALS['_SESSION'][$varname];
}
}else{
if (isset($GLOBALS[$varname]))
{
return $GLOBALS[$varname];
}
elseif (isset($GLOBALS['HTTP_SESSION_VARS'][$varname]))
{
$GLOBALS[$varname] = $GLOBALS['HTTP_SESSION_VARS'][$varname];
return $GLOBALS['HTTP_SESSION_VARS'][$varname];
}
}
}
// Get a current session string (EXAMPLE: PHPSESSID=b188e8c9c45b347cdded2)
// Syntax: $sid = $session->get_sid_string();
// echo "$sid" to grab the string id. By default it uses PHPSESSID= variable
function get_sid_string()
{
return session_name() . "=" . session_id();
}
// Get current session ID (EXAMPLE: whatever=b188e8c9c45b347cdded2)
// Syntax: $sid = $session->get_sid();
function get_sid()
{
return session_id();
}
// Unset a current session variable
// Syntax: $session->var_unset("variable name");
function var_unset($varname)
{
if(!isset($varname))
{
die('Function var_unset( String $varname ) expects a parameter!');
}
if( phpversion() >= '4.1.0')
{
if(isset($GLOBALS[$varname]))
{
unset($GLOBALS[$varname] );
}
if (isset($GLOBALS['_SESSION'][$varname]))
{
unset($GLOBALS['_SESSION'][$varname]);
}
}else{
if (isset($GLOBALS[$varname]))
{
unset($GLOBALS[$varname] );
}
if (isset($GLOBALS['HTTP_SESSION_VARS'][$varname]))
{
unset($GLOBALS['HTTP_SESSION_VARS'][$varname]);
}
}
}
// Unset every variable in the current session
// Syntax: $session->ses_unset();
function ses_unset()
{
if(phpversion() >= '4.1.0')
{
if(isset($GLOBALS['_SESSION'])) $a = $GLOBALS['_SESSION'];
{
while(list($key,) = each($a))
{
$this->var_unset($key);
}
}
}else{
if(isset($GLOBALS['HTTP_SESSION_VARS']))
{
$a = $GLOBALS['HTTP_SESSION_VARS'];
while(list($key,) = each($a))
{
$this->var_unset($key);
}
}
}
}
// This will delete your current session and delete every session variable created
// Syntax: $session->destroy();
function destroy()
{
$this->ses_unset();
session_destroy();
}
// Display all variables in a current session
// Syntax: $session->show();
function show()
{
echo 'Variables set in current session:<br>';
if(phpversion() >= '4.1.0')
{
if(isset($GLOBALS['_SESSION']))
{
$a = $GLOBALS['_SESSION'];
while(list($key,$value) = each($a))
{
echo '<b>Variable:</b> '.$key.' - <b>Value:</b> '.$value.'<br>';
}
}
} else {
if(isset($GLOBALS['HTTP_SESSION_VARS']))
{
$a = $GLOBALS['HTTP_SESSION_VARS'];
while(list($key,$value) = each($a))
{
echo '<b>Variable:</b> '.$key.' - <b>Value:</b> '.$value.'<br>';
}
}
}
}
}
?>
learn more about some of the PHP functions used in this snippet: current, delete, die, each, echo, else, elseif, function, glob, global, isset, key, list, phpversion, return, session_destroy, session_id, session_name, session_register, session_start, unset, var, while
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