How should I change the encapsulated paging function to this effect?

I don't want to display all the pages to show only five or ten pages. How can I change this code? {Code...} I don't want to display all the pages only five or ten pages. How should I change this code?

 "; Echo"
 
 

  
  
"; Echo'
  
  
'. $ Page.'/'. $ pagenum.' page |
'; If ($ page = 1) {echo'
  
  
Homepage |
'; Echo'
  
  
Previous Page |
';} Else {echo'
  
  
Homepage |
'; Echo'
  
  
Previous Page |
';} Echo'
  
  
'; Echo'
  
  

    '; For ($ I = 0; $ I <$ pagenum; $ I ++) {echo' 
   
'. ($ I + 1 ).'
';} Echo' 
  
'; Echo'
  
  
'; If ($ page = $ pagenum) {echo'
  
  
| Next page |
'; Echo'
  
  
Last page |
';} Else {echo'
  
  
| Next page |
'; Echo'
  
  
Last page |
';} Echo'
 
 
'; Echo'
';};?>

Reply content:

 "; Echo"
 
 

  
  
"; Echo'
  
  
'. $ Page.'/'. $ pagenum.' page |
'; If ($ page = 1) {echo'
  
  
Homepage |
'; Echo'
  
  
Previous Page |
';} Else {echo'
  
  
Homepage |
'; Echo'
  
  
Previous Page |
';} Echo'
  
  
'; Echo'
  
  

    '; $ Fp = ($ page-1) * $ dp + 1; // how many pages are displayed for $ dp = 3: homepage previous 1 2 3 next last page; // or $ dp = 8: homepage previous 1 2 3 4 5 6 7 8 next last page // $ fp: indicates the number of pages to be displayed. $ ep = $ fp + $ dp; // $ ep: indicates the number of pages to be displayed. for ($ I = $ fp; $ I <= $ pagenum; $ I ++) {// echo' 
   
'. $ I .'
';} Echo' 
  
'; Echo'
  
  
'; If ($ page = $ pagenum) {echo'
  
  
| Next page |
'; Echo'
  
  
Last page |
';} Else {echo'
  
  
| Next page |
'; Echo'
  
  
Last page |
';} Echo'
 
 
'; Echo'
';};?>

The above is the encapsulated paging function. How can this effect be changed? For more information, see the PHP Chinese website (www.php1.cn )!