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[nycphp-talk] Passing Objects Via Session in PHP 4

Joseph Crawford codebowl at gmail.com
Mon Sep 27 11:49:02 EDT 2004


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");
> >
> >
> > ?>
> >
> 
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-- 
Joseph Crawford Jr.
Codebowl Solutions
codebowl at gmail.com
802-558-5247

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