PHP: Code get links from X lines to Y Lines doesn't work

Question

This is code I used to get lines between X lines and Y lines:

$files = new SplFileObject($filename);
$fileIterator = new LimitIterator($files, 1800, 2000);

I want to get 200 lines from 1800 to 2000. However, when I print array, it shows 2000 lines. So, what wrong I do ?

Answer 1

The second parameter is a count, you want 200 not 2000

$fileIterator = new LimitIterator($files, 1799, 200);

You can check it from the LimitIterator ^Doc :

public __construct ( Iterator $iterator [, int $offset = 0 [, int $count = -1 ]] )

Also consider that offset starts from 0, so if you want the 1800th line, you need to use 1799

Answer 2

When you look at the documentation you can see that the second parameter is a count and not the ending line.

public __construct ( Iterator $iterator [, int $offset = 0 [, int $count = -1 ]] )

http://php.net/manual/en/class.limititerator.php

$fileIterator = new LimitIterator($files, 1800, 200);

So you need something like this.