A typical PHP paging example code_PHP tutorial

  
    
    
  
/*
* Created on 2010-4-17
*
* Order by Kove Wong
*/
$link=MySQL_connect(’localhost’,’root’,’haoxiazai1987’);
mysql_select_db(’pagelist’);
mysql_query(’set names gbk’);

$Page_size=10;

$result=mysql_query(’select * from v_char’);
$count = mysql_num_rows($result);
$page_count = ceil($count/$Page_size);

$init=1;
$page_len=7;
$max_p=$page_count;
$pages=$page_count;

//判断当前页码
if(empty($_GET[’page’])||$_GET[’page’]<0){
$page=1;
}else {
$page=$_GET[’page’];
}

$offset=$Page_size*($page-1);
$sql="select * from v_char limit $offset,$Page_size";
$result=mysql_query($sql,$link);
while ($row=mysql_fetch_array($result)) {
?>
  
    
    

}
$page_len = ($page_len%2)?$page_len:$pagelen+1;//Number of page numbers
$pageoffset = ($page_len-1)/2;//Offset to the left and right of the page number

$key=’

’;
$key.="$page/$pages "; //Number of pages, total number of pages
if($page!=1){
$key.="First page "; //First page
$key.="Previous page"; // Previous page
}else {
$key.="First page";//First page
$key.="Previous page"; //Previous page
}
if($pages>$page_len){
//If the current page is less than or equal to the left offset
if($page<=$pageoffset){
$init=1;
$max_p = $page_len;
}else{//If the current page is greater than the left offset
//If the right offset of the current page number exceeds the maximum number of pages
if($page+$pageoffset>=$pages+1){
$init = $pages-$page_len+1;
}else{
//Calculation when both left and right offsets exist
$init = $page-$pageoffset;
$max_p = $page+$pageoffset;
}
}
}
for($i=$init;$i<=$max_p;$i++){
if($i==$page){
$key.=’ ’.$i.’’;
} else {
$key.=" ".$i."";
}
}
if($page!=$pages){
$key.=" Next page ";// Next page
$key.="Last page"; //Last page
}else {
$key.="Next page ";//Next page
$key.="Last page"; //Last page
}
$key.=’

’;
?>

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