Code sharing for a typical PHP paging instance

A typical PHP paging instance code sharing will surely be used by friends who are learning php, mainly for understanding their ideas. The code is as follows:




Php make page list

';
$ Key. = "$ page/$ pages"; // page
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 page number
If ($ page + $ pageoffset >=$ pages + 1 ){
$ Init = $ pages-$ page_len + 1;
} Else {
// Calculation when both the 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. ='

/** 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;// Determine the current page numberIf (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; // page number offset between left and right$ Key ='';?>

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