Parsing text files with for loops

[Anon]

Hi,

I would like to program a script that will selectively parse out certain lines on a text file:

e.g:
Supposing we have a text file "text.txt" that contains 100 lines of text.

What I want to do is:

//open text file

if($page == "1"){
//for lines 1 to 10, print them;
for($i=1;$i<=10;$i++){
//print line of text
}
}
if($page == "2"){
//for lines 11 to 20, print them;
{
if($page == "3"){
//for lines 21 to 30, print them;
}
etc etc

I'm fairly new to PHP, but I program in Java. I know how to do this in Java, but when it comes to PHP I'm kinda lost due to the semantics...if anyone could give me a hint, that would be great!

Thanks and regards,

Leonard Teo

[Anon]

You can try this:

$filename="path/to/your/file.txt";
$fp=fopen($filename,'r');
while (!feof($fp))
{
$lines[]=fgets($fp,4096); // increase if any lines over 4Kb
}
fclose($fp);

// $lines starts indexing at 0
$start_index=$page*10-10;
$end_index=$start_index+10;

for ($i=$start_index;$i<=$end_index;$i++)
{
print $lines[$i];
print "<p>";
}

HTH

[Anon]

Ohhhhh nice code! I never woulda thought of it that way. I woulda counted the lines, worked backwards =). But then again, I like making strung out functions no one can read eh? =)