How to pass $_GET in pagination in php - php

Question

This code works perfectly if i am just running the pagination, but when there is a $_GET variable passed it shows the first page properly and when clicked on next it loads all the data in the db and runs from beginning.
I would like to know how can i pass a $_GET variable passed.
<?php
if ($currentpageRec > 1) {
echo " <a href='{$_SERVER['PHP_SELF']}?currentpageRec=1'>First Page</a> ";
prevpageRec = $currentpageRec - 1;
echo " <a href='{$_SERVER['PHP_SELF']}?currentpageRec=$prevpageRec'>Previous Page</a> ";
}
for ($x = ($currentpageRec - $rangeRec); $x < (($currentpageRec + $rangeRec) + 1); $x++) {
if (($x > 0) && ($x <= $totalpagesRec)) {
if ($x == $currentpageRec) {
echo " [<b>$x</b>] ";
} else {
echo " <a href='{$_SERVER['PHP_SELF']}?currentpageRec=$x'>$x</a> ";
}
}
}
if ($currentpageRec != $totalpagesRec) {
$nextpageRec = $currentpageRec + 1;
echo " <a href='{$_SERVER['PHP_SELF']}?currentpageRec=$nextpageRec'>Next Page</a> ";
echo " <a href='{$_SERVER['PHP_SELF']}?currentpageRec=$totalpagesRec'>Last Page</a> ";
}
?>

Answer 1

Based on your code, I am wondering whether you should register global variables
http://php.net/manual/en/security.globals.php
Your code could use the variables as globals, whereas in fact it should refer to the GET variables, e.g.
<?php
if ($_GET['currentpageRec'] > 1) {
//[etc]
?>
Further to the comment below: I tried to say: user $_GET (etcetera), as the code appears to be based on the (depreciated) global variabels.
--- edit ---
Further to the updated shared code: you have to pass each variable again when using the pagination, e.g. for your last line
<?
// code to define $totalpagesRec
// code to define $KeyWord
// personal preference to split the echo between static texts and variables
echo " <a href='".$_SERVER['PHP_SELF']."?currentpageRec=".$totalpagesRec."&keyword=".$KeyWord."'>Last Page</a> ";
?>
Hope this helps