[nycphp-talk] Passing Objects Via Session in PHP 4
Phillip Powell
phillip.powell at adnet-sys.com
Mon Sep 27 11:58:02 EDT 2004
Isn't it a bit dangerous to pass an object not-serialized into a
session? Just an observation.
Phil
Joseph Crawford wrote:
>OMG dan i apoligise i cant believe i missed that on LOL
>
>
>On Mon, 27 Sep 2004 09:23:46 -0500, Dan Cech <dcech at phpwerx.net> wrote:
>
>
>>Hi Joe,
>>
>>I seem to recall some comment about 'i understand the use of sessions
>>thanks' a little while ago, but I'll help you out anyway.
>>
>>You need to change the second if statement in your getObject function.
>>It should read:
>>
>>function &getObject($class) {
>> if (!isset($_SESSION['objects'])) {
>> $_SESSION['objects'] = array();
>> }
>>
>> if (!isset($_SESSION['objects'][$class])) {
>> $_SESSION['objects'][$class] =& new $class;
>> }
>>
>> return $_SESSION['objects'][$class];
>>}
>>
>>Dan
>>
>>
>>
>>Joseph Crawford wrote:
>>
>>
>>>can anyone explain why this is not working? i have done passing
>>>objects via session before and i remember that the object class file
>>>had to be included before the session_start for it to work, but this
>>>doesnt seem to be working, i mean i have it set $db->test = 'page 1';
>>>on page 1 and provide a link to page 2, but it doesnt seem to retain
>>>the value for $test from page to page. :(
>>>
>>><?php
>>>
>>>// we will do our own error handling
>>>error_reporting(0);
>>>
>>>// include the const.php file that holds all the necessary constants
>>>include_once('const.php');
>>>
>>>include_once('class/mysql.class.php');
>>>include_once('class/template.class.php');
>>>
>>>session_start();
>>>
>>>function &getObject($class) {
>>> if (!isset($_SESSION['objects'])) {
>>> $_SESSION['objects'] = array();
>>> }
>>>
>>> if (!isset($_SESSION['_singleton'][$class])) {
>>> $_SESSION['objects'][$class] =& new $class;
>>> }
>>>
>>> return $_SESSION['objects'][$class];
>>>}
>>>
>>>$tpl = &getObject('template');
>>>
>>>// user defined error handling function
>>>// taken from the example on http://us2.php.net/errorfunc
>>>function myErrorHandler($errno, $errmsg, $filename, $linenum, $vars)
>>>{
>>> global $tpl;
>>> // timestamp for the error entry
>>> $dt = date("Y-m-d H:i:s (T)");
>>>
>>> // define an assoc array of error string
>>> // in reality the only entries we should
>>> // consider are E_WARNING, E_NOTICE, E_USER_ERROR,
>>> // E_USER_WARNING and E_USER_NOTICE
>>> $errortype = array (
>>> E_ERROR => "Error",
>>> E_WARNING => "Warning",
>>> E_PARSE => "Parsing Error",
>>> E_NOTICE => "Notice",
>>> E_CORE_ERROR => "Core Error",
>>> E_CORE_WARNING => "Core Warning",
>>> E_COMPILE_ERROR => "Compile Error",
>>> E_COMPILE_WARNING => "Compile Warning",
>>> E_USER_ERROR => "User Error",
>>> E_USER_WARNING => "User Warning",
>>> E_USER_NOTICE => "User Notice",
>>> E_STRICT => "Runtime Notice"
>>> );
>>> // set of errors for which a var trace will be saved
>>> $user_errors = array(E_USER_ERROR, E_USER_WARNING, E_USER_NOTICE);
>>>
>>> $err = "<errorentry>\n";
>>> $err .= "\t<datetime>" . $dt . "</datetime>\n";
>>> $err .= "\t<errornum>" . $errno . "</errornum>\n";
>>> $err .= "\t<errortype>" . $errortype[$errno] . "</errortype>\n";
>>> $err .= "\t<errormsg>" . $errmsg . "</errormsg>\n";
>>> $err .= "\t<scriptname>" . $filename . "</scriptname>\n";
>>> $err .= "\t<scriptlinenum>" . $linenum . "</scriptlinenum>\n";
>>>
>>> if (in_array($errno, $user_errors)) {
>>> $err .= "\t<vartrace>" . wddx_serialize_value($vars, "Variables") .
>>>"</vartrace>\n";
>>> }
>>> $err .= "</errorentry>\n\n";
>>>
>>> // for testing
>>> // echo $err;
>>>
>>> // save to the error log, and e-mail me if there is a critical user error
>>> error_log($err, 3, "D:/htdocs/NYPHPCode/error.log");
>>> if ($errno == E_USER_ERROR) {
>>> mail("jcrawford at codebowl.com", "Critical User Error", $err);
>>> $tpl->display('error.tpl');
>>> }
>>>}
>>>$old_error_handler = set_error_handler("myErrorHandler");
>>>
>>>
>>>?>
>>>
>>>
>>>
>>_______________________________________________
>>New York PHP Talk
>>Supporting AMP Technology (Apache/MySQL/PHP)
>>http://lists.nyphp.org/mailman/listinfo/talk
>>http://www.newyorkphp.org
>>
>>
>>
>
>
>
>
>
--
---------------------------------------------------------------------------------
Phil Powell
Multimedia Programmer
BPX Technologies, Inc.
#: (703) 709-7218 x107
Fax: (703) 709-7219
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