next/prev links without sql

[packetMax]

Hi,

I would like to know if it's possible to create a script that will take a normal txt file, and generate next previous links, according to the amount of lines counted in the flat file..

Is this possible, and if so can you perhaps help me in this regard ?

many thanks in advance,

packetMax

[nashirak]

Of course this is possible 🙂. In essence, all a database is a flat file, its just wrapped in complicated algorithms, and the data is put into the files specially.

You would just want to know (say if you wanted to show 5 lines at a time) how many lines.

 

   $current = $_GET["current"] // the current line
   $lines = 5;

   if($end =="")
     $end = 0; 
   if($current=="")
     $current = 0;  

  $array = file("database.cvs");


   for($i =$current;$i<$lines;$i++) 
       echo $array[$i];      

  if($current==0) {
    $current = $current+$lines;
    echo "<a href=\"read.php?current=$current\">Next</a>";
}
else {
    $current = $current+$lines;

if($current > sizeof($array)) {
   $current = sizeof($array) -1;
   $end = 1;
  }
if (!$end)
    echo "<a href=\"read.php?current=$current\">Next</a>";
$current = $current - $lines;
echo "<a href=\"read.php?current=$current\">Prev</a>";

}

Warning this is probably full of holes but its a good start. BTW read.php is the name of this file, you just have it send in different variables all the time.

Hope this Helps!

[packetMax]

It works fine when I open read.php, but as soon as I click next it displays a blank page, whereas it should display the last 3 lines in the text file. Thanks very much for your effort, and reply.

packetMax

[metin]

Try the following code instead!

<?php
if (isset($_GET["line"]) && !empty($_GET["line"])){
	$line = $_GET["line"];
	}
else{
	$line = 0;
	}

$line_next = $line + 1;
$line_prev = $line - 1;

$array = file("database.cvs");
$line_total = count($array);

if ($line_prev < 0){
	echo "Prev"; 
	}
else{
	echo "<a href=\"".$_SERVER["PHP_SELF"]."?line=$line_prev\">Prev</a>"; 
	}
echo "&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp";
if ($line_next >= $line_total){
	echo "Next"; 
	}
else{
	echo "<a href=\"".$_SERVER["PHP_SELF"]."?line=$line_next\">Next</a>"; 
	}
echo "<BR>";
if (isset($array[$line])){
	echo $array[$line];
	}
?>

[packetMax]

Hey again,

That code worked perfectly, but it only displays 1 link at a time... Is there any way I can make it display 4 or 5 links on one page, and the rest on the next page etc etc...

Thanks for your help.

packetMax