note 74436 added to reserved.variables
| From: | deceze at gmail dot YesThatsGoogleMail dot com | Date: | Wed, 11 Apr 2007 14:37:54 +0000 |
| Subject: | note 74436 added to reserved.variables | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-125295@lists.php.net to get a copy of this message | ||
If you're working with $_GET a lot and need to preserve already set variables in a link for the
next page, this function is pretty handy for simplifying the process of generating a new URL:
string setUrlVariables([string var, string value], [varN, valueN], ...)
<?php
function setUrlVariables() {
$arg = array();
$string = "?";
$vars = $_GET;
for ($i = 0; $i < func_num_args(); $i++)
$arg[func_get_arg($i)] = func_get_arg(++$i);
foreach (array_keys($arg) as $key)
$vars[$key] = $arg[$key];
foreach (array_keys($vars) as $key)
if ($vars[$key] != "") $string.= $key . "=" . $vars[$key] .
"&";
if (SID != "" && SID != "SID" && $_GET["PHPSESSID"]
== "")
$string.= htmlspecialchars(SID) . "&";
return htmlspecialchars(substr($string, 0, -1));
}
?>
You use it like this:
<a href="nextpage.php<?php echo setUrlVariables(); ?>">Link</a>
In this case setUrlVariables() will simply add all the $_GET variables of the current page/URL and
even takes care of the PHPSESSID if you use one (and didn't change the default variable name).
The above HREF would complete to e.g.:
"nextpage.php?var=21&PHPSESSID=BI89J"
If you supply arguments, do it like this:
<?php echo setUrlVariables("user", "foobar"); ?>
This would complete the HREF to e.g.:
"nextpage.php?user=foobar&var=21&PHPSESSID=BI89J"
Unsetting variables works by supplying an empty value:
<?php echo setUrlVariables("var", ""); ?>
"nextpage.php?user=foobar&PHPSESSID=BI89J"
setUrlVariables() also makes sure it produces "pretty URLs", so it doesn't output any
unnecessary garbage. ;)
<?php
session_destroy();
echo setUrlVariables("user", "");
?>
"nextpage.php"
----
Server IP: 61.195.146.164
Probable Submitter: 220.209.181.27
----
Manual Page -- http://www.php.net/manual/en/reserved.variables.php
Edit -- https://master.php.net/note/edit/74436
Del: integrated -- https://master.php.net/note/delete/74436/integrated
Del: useless -- https://master.php.net/note/delete/74436/useless
Del: bad code -- https://master.php.net/note/delete/74436/bad+code
Del: spam -- https://master.php.net/note/delete/74436/spam
Del: non-english -- https://master.php.net/note/delete/74436/non-english
Del: in docs -- https://master.php.net/note/delete/74436/in+docs
Del: other reasons-- https://master.php.net/note/delete/74436
Reject -- https://master.php.net/note/reject/74436
Search -- https://master.php.net/manage/user-notes.php