Several classic PHP page-paging programs (1/4)

function _pageft ($totle, $displaypg = $url = ') {

Global $page, $firstcount, $pagenav, $_server;

$globals ["displaypg"] = $DISPLAYPG;

if (! $page)
$page = 1;
if (! $url) {
$url = $_server["Request_uri"];
}

  //url Analysis:
   $parse _url = Parse_url ($url);
   $url _query = $parse _url["Query "]; Query string
  if ($url _query) {
    $url _query = ereg_replace ("(^|&) page=$" for individual removal of URLs Page "," ", $url _query);
    $url = str_replace ($parse _url["Query"), $url _query, $url);
   if ($url _query)
     $url. = "&page";
   else
     $url. = "page";
  } else {
    $url. = "? page";
  }
   $lastpg = ceil ($totle /$DISPLAYPG); Last page, is also the total number of pages
   $page = min ($lastpg, $page);
   $PREPG = $page-1;//prev
  $ NEXTPG = ($page = = $LASTPG 0: $page + 1); Next page
   $firstcount = ($page-1) * $DISPLAYPG;

To start the pager bar code:
$pagenav = "Show <b>". ($totle? ($firstcount + 1): 0). "</b>-<b>". Min ($firstcount + $DISPLAYPG, $totle). "</b> Records, a total of $totle records";

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