Session – Blackbams Blog https://blog.blackbam.at development - digital arts - internet Wed, 05 Oct 2011 17:30:41 +0000 en-US hourly 1 https://wordpress.org/?v=6.8.1 Bypass usage of sessions by using $_POST and hidden fields with JSON https://blog.blackbam.at/2011/04/21/bypass-usage-of-sessions-by-using-post-and-hidden-fields-with-json/ https://blog.blackbam.at/2011/04/21/bypass-usage-of-sessions-by-using-post-and-hidden-fields-with-json/#respond Thu, 21 Apr 2011 21:05:02 +0000 https://blog.blackbam.at/?p=1326 Today we have been searching for an easy and fast way to store and reuse $_POST variables over 2 pages and more without using a session. This can save you a lot of work in some cases. This possiblity is completly browser based, so there is no need for the server to re-identify a user.

Save $_POST or some other array to a hidden field by converting it to the JSON-format. Use URL-encode to make sure that there will be no encoding problems.

Decode the hidden-fields’ value on the server-side. Replace the $_POST variables depending on your needs or take the new ones.

// We save previous POST values in the 'post_saver', to provide page navigation and so on
if(strlen($_POST['post_saver'])>0) {

	$previous_post_object = json_decode(urldecode($_POST['post_saver']));
	unset($_POST['post_saver']);
	
	foreach($previous_post_object as $pkey=>$pval) {
		if(strlen($_POST[$pkey]) <= 0) {
			$_POST[$pkey] = $pval;
		}
	}
}

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]]> https://blog.blackbam.at/2011/04/21/bypass-usage-of-sessions-by-using-post-and-hidden-fields-with-json/feed/ 0 Secure Sessions with PHP https://blog.blackbam.at/2010/01/26/session-sicherheit-in-php/ https://blog.blackbam.at/2010/01/26/session-sicherheit-in-php/#comments Tue, 26 Jan 2010 17:25:17 +0000 http://www.blackbam.at/blog/?p=468 Sorry, this entry is only available in Deutsch.

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