Pass $_GET variable to the next page - php

Question

Right now im trying to code read other codes and make it work, because some of the projects that i have are made by other developers and i really have to learn reading other code, I already made this one work but the problem is when i try to incorporate this pagination code to a $_GET variable an error occur, when it load the first page everything thing is smooth but when i click the other pages the $_GET variable dies. i already found a code in the site but i can't really get how to incorporate it with the other code.
here is the code that "MIGHT" solve the problem solving pagination $_GET
printf('Next',$targetpage,http_build_query(array('page' => 2) + $_GET));
here is the part of the code that make the link 1 2 3 4. . . and so on
$range = 3;
// if not on page 1, don't show back links
if ($currentpage > 1) {
// show << link to go back to page 1
echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=1?srId=$srdd'><<</a> ";
// get previous page num
$prevpage = $currentpage - 1;
// show < link to go back to 1 page
echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$prevpage?srId=$srdd'><</a> ";
} // end if
// loop to show links to range of pages around current page
for ($x = ($currentpage - $range); $x < (($currentpage + $range) + 1); $x++) {
// if it's a valid page number...
if (($x > 0) && ($x <= $totalpages)) {
// if we're on current page...
if ($x == $currentpage) {
// 'highlight' it but don't make a link
echo " [<b>$x</b>] ";
// if not current page...
} else {
// make it a link
echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$x?srId=$srdd'>$x</a> ";
} // end else
} // end if
} // end for
// if not on last page, show forward and last page links
if ($currentpage != $totalpages) {
// get next page
$nextpage = $currentpage + 1;
// echo forward link for next page
echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$nextpage?srId=$srdd'>></a> ";
// echo forward link for lastpage
//echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$totalpages?srId=$srdd'>>></a> ";
printf("<a href='{$_SERVER['PHP_SELF']}?currentpage=$totalpages?srId=$srdd'>>></a>");
} // end if
/****** end build pagination links ******/
?>

Answer 1

I already figured it out guys I saw lots for this problem on the web and also some on the forum here's how to solve it
<?php
session_start();
// store session data
if (isset($_GET["srId"]))
{
$_SESSION['variable']=$_GET["srId"];
$srdd = $_SESSION['variable'];
}
else
{
$srdd = $_SESSION['variable'];
$tableName = $srdd."r";
}
?>
thanks for your response guys.

Answer 2

You will need to use either session variables or cookies to pass them one page to another.
The $_GET global array will be a NEW array for every new page, assuming you're sending a GET request and it can be seen in the URL.
In general, the web is stateless which means it will not remember what you do from one page to another UNLESS you use cookies, sessions or a database for persistence.
Design your links
Page 1 | 2 | 3 | 4
to have the information in the link so they are ready for the next page
Page 1 = http://url?page=1&page_limit=25
Page 2 = http://url?page=2&page_limit=25
...
Etc
If the paginated links are in this format, these variables will be in the $_GET array.

Answer 3

Try replacing
echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=1?srId=$srdd'><<</a> ";
with
echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=1&srId=$srdd'><<</a> ";
After the initial '?' in a url, the following *'$_GET[]'* items should be separated from the preceeding one with an '&'. Note that your 'srId=$srdd' is preceeded by a '?'.
Example:
myurl.com?id=1234&page=help
Doing it this way will help you avoid having to store the information in the $_SESSION array, and keeps the URL secure.