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php pagination navigation

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  1. /*
  2. $nr = number of results
  3. $pp = results per page
  4. $pnp = page navigation pages
  5. $pn = current page
  6. $url = base url to append navigation to
  7. $sr = starting row
  8. */
  9. function navLinks( $nr, $sr, $pp, $pnp, $pn, $url )
  10. {
  11.   $pnav = '';
  12.   $link = '';
  13.   $start = '';
  14.   $previous = '';
  15.   $next = '';
  16.   $end = '';
  17.  
  18.   if( $pn >= 2 )
  19.   {
  20.     $previous .= " <a href=\"" . $url . "sr=" . ( $sr - $pp );
  21.     $previous .= "&pp=" . $pp . "&cp=" . ( $pn - 1) . "\"><< Back</a> ... ";
  22.   }
  23.  
  24.   if( $pn < $nr and ( $pn * $pp) < $nr )
  25.   {
  26.     $next .= " ... <a href=\"" . $url . "sr=" . ( $sr + $pp );
  27.     $next .= "&pp=" . $pp . "&cp=" . ( $pn + 1) . "\">Next >></a> ";
  28.   }
  29.  
  30.   if( $nr > $pp )
  31.   {
  32.     $tp = $nr / $pp;
  33.  
  34.     if( $tp != intval( $tp ) )
  35.     {
  36.       $tp = intval( $tp) + 1;
  37.     }
  38.  
  39.     $cp = 0;
  40.  
  41.     while( $cp++ < $tp )
  42.     {
  43.       if( ( $cp < $pn - $pnp or $cp > $pn + $pnp) and $pnp != 0 )
  44.       {
  45.         if( $cp == 1 )
  46.         {
  47.           $start .= " <a href=\"" . $url;
  48.           $start .= "sr=0&";
  49.           $start .= "pp=" . $pp . "&cp=1\"><< Start</a> ... ";
  50.         }
  51.  
  52.         if( $cp == $tp )
  53.         {
  54.           $end .= " ... <a href=\"" . $url;
  55.           $end .= "sr=";
  56.           $end .= ( $tp - 1 ) * $pp . "&pp=" . $pp . "&cp=";
  57.           $end .= $tp . "\">End >></a> ... ";
  58.         }
  59.       }
  60.       else
  61.       {
  62.         if( $cp == $pn )
  63.         {
  64.           $link .= ' <span class="selNav">[ ' . $cp . ' ]</span> ';
  65.         }
  66.         else
  67.         {
  68.           $link .= " <a href=\"" . $url;
  69.           $link .= "sr=" . ( $cp - 1) * $pp;
  70.           $link .= "&pp=" . $pp . "&cp=" . $cp . "\">[ $cp ]</a> ";
  71.         }
  72.       }
  73.     }
  74.  
  75.     $pnav .= $start;
  76.     $pnav .= $previous;
  77.     $pnav .= $link;
  78.     $pnav .= $next;
  79.     $pnav .= $end;
  80.   }
  81.  
  82.   if( $nr == 0 )
  83.   {
  84.     $nom = 0;
  85.   }
  86.   else
  87.   {
  88.     $nom = 1;
  89.   }
  90.  
  91.   $pnav .= "  ... #" . ( $sr + $nom );
  92.  
  93.   if( $pp > 1 )
  94.   {
  95.     $pnav .= " - ";
  96.  
  97.     if( $sr + $nom + $pp < $nr )
  98.     {
  99.       $pnav .= ( $sr + $nom + $pp ) - 1;
  100.     }
  101.     else
  102.     {
  103.       $pnav .= $nr;
  104.     }
  105.   }
  106.  
  107.   $pnav .= " of " . $nr . " ";
  108.  
  109.   return $pnav;
  110. }

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