The perfect page flip function with empty jumps

It can be said that this is the most complete page flip function you have ever seen. the detailed content is explained in the code! SyntaxHighlighter. all (); info & nbsp; | & nbsp; Security & nbsp; | & nbsp

It can be said that this is the most complete page flip function you have ever seen. the detailed content is explained in the code!

// Set the number of entries in the list
$ ListNum = 25;

// Set the start position
If ($ Start_Num = ""){
$ Start_Num = 0;
}

// Set the front flip
$ Begin_Num = $ Start_Num-$ ListNum;
// Set the suffix
$ End_Num = $ Start_Num + $ ListNum;


// Variable used to calculate the number of items during page turning
$ N = 0;

// The initial value of the generated list
$ ArtList = "";

// Connect to the database (ODBC is used in this example )!
$ Conn = ODBC_CONNECT ("DSN", "user", "password ");
$ SQL = "SELECT field FROM table ";
// Well, here all the select statements are available, which is inefficient and exaggerated. However, this is just to demonstrate our central content-turning pages!

$ Result = $ ODBC_DO ($ Conn, $ SQL );

While ($ odbc_fetch_row ($ Result )){
If ($ n <$ Start_Num + $ ListNum & $ n> = $ Start_Num ){
$ Thevalue = ODBC_RESULT ($ Result, "field ");
$ ArtList. = $ n. $ thevalue ."
";
}
$ N ++;
}

// Obtain the start item of the last page
If ($ n % $ ListNum = 0 ){
$ LastPage = $ n-$ ListNum;
} Else {
$ LastPage = $ n-$ n % $ ListNum;
}
// Always have the last page
$ ArtList. ="
| <最前一页　　";

// Only when Start_Num is greater than 0 can the previous page be available If ($ Start_Num> 0 ){ $ ArtList. = "< <上一页　　"; } Else { $ ArtList. = "< <上一页　　"; } // If Start_Num is already within the range of the last page, there cannot be a Next page If ($ Start_Num <$ n-$ ListNum ){ $ ArtList. = "next page> "; } Else { $ ArtList. = "next page> "; } // There is always the last page $ ArtList. = "Last Page> | "; Echo $ artList; ?>