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A class implemented by a page scroll bar

Usage example:

Class_Scroll::_Print($_SERVER['PHP_SELF'],1234,$_GET['Page'],10,$_SERVER['QUERY_STRING'],"Page" ,9,true);
?>

/**
* Class that implements the scroll bar
*
* Generates a page scroll bar for display/control based on page content and data volume.
* <br> * Class_Scroll: :_Print($_SERVER['PHP_SELF'],1234,$_GET['Page'],10,$_SERVER['QUERY_STRING'],"Page",9,true);<br> *
*
* @author Zhou Beichen 2006-7-16
* @version 2.1
*
* @todo Generate a page content scroll bar
*/
class Class_Scroll{
/**
* Output page scroll bar
*
* @param string $AScriptName The page to be scrolled
* @param integer $ATotalCount The total number of scrolling information
* @param integer $ANowPageID The current page Number
* @param integer $AInnerCount Number of information in each page
* @param string $AVar Other variables and their values that need to be attached
* @param string $APageKey The variable name used to specify the page number
* @param integer $APageBundle The maximum number of pages displayed in the scroll bar
* @param boolean $IncJump Whether to display the page jump drop-down list (default: true)
* @return string The page scroll bar HTML code
*/
function _Print( $AScriptName,$ATotalCount,$ANowPageID,$AInnerCount,$AVar,$APageKey="Page",$APageBundle=9,$IncJump = true){
// No items
if( $ATotalCount == 0 or $ATotalCount == "") return "No relevant content.";//"No Item Here.";
// Calculate the total number of pages
$PageCount = ceil($ATotalCount / $AInnerCount);
// Check and control the current page number value
if($ANowPageID < 1) $ANowPageID = 1;
if($ANowPageID > $PageCount) $ANowPageID = $PageCount;
// OK of course The numerical link value to be displayed
$StartNum = ($ANowPageID - floor($APageBundle / 2)) > 0 ? ($ANowPageID - floor($APageBundle / 2)) : 1;
$EndNum = ( $PageCount - $StartNum) < $APageBundle ? $PageCount : ($StartNum + $APageBundle - 1);
if((($EndNum - $StartNum) < $APageBundle)&&($PageCount > $APageBundle )) $StartNum = $EndNum - $APageBundle + 1;
// Get variable
if(strlen($AVar) > 0) $Vars = explode("&",$AVar);
if(count($Vars) > 0){
for($i=0;$i $v = explode("=",$Vars[ $i]);
if($v[0]!=$APageKey) $VarString.=sprintf("%s=%s&",$v[0],$v[1]);
}
}
// Home page link
$OutStringr = sprintf('%s%s', $AScriptName,$VarString,$APageKey,"1","Home","r");
// Previous page link
$OutStringr .= ($ANowPageID==1) ? " " : sprintf ('%s%s',$AScriptName,$VarString,$APageKey,$ANowPageID-1,"Previous page" ,"r");
// Middle page link
for($i = $StartNum; $i <= $EndNum; $i++)
$OutStringr .= ($i==$ANowPageID ) ? sprintf("%s%s",$i,"r") : sprintf('%s%s',$AScriptName,$VarString,$APageKey,$i,$i,"r");
// Next page link
$OutStringr. = ($ANowPageID==$PageCount) ? " " : sprintf('%s%s',$AScriptName,$VarString ,$APageKey,$ANowPageID+1,"Next page","r");
// Last page link
$OutStringr .= sprintf('%s Total %s pages %s items %s',$AScriptName,$VarString,$APageKey,$PageCount,"last page",$PageCount,$ATotalCount,"r" );
// Jump link
if ($IncJump){
$OutStringr .= sprintf("Jump to (J): ";
}
// Output
return $OutStringr;
}
}
?> ;