Process text files using PHP

[Wuoshi]

I've been working on the following snippet:

$lines = file('http://www.example.com/thefile.txt');


foreach ($lines as $line_num => $line)
{
    echo substr($line,0,strpos($line,' ')), "<br/>\n";
}

The snippet fetches the first word on each line in the textfile.

What I need to do is to check if the word on the line is already collected, since I only want one occurance of each word. Anybody got any ideas?

Thank you!

 

[Dan]

<?php

$lines = file('file.txt');
$words = array();
foreach ($lines as $line)
{
  $line = explode(" ", $line);
  $word = $line[0];
  if (!in_array($word, $words)) $words[] = $word;
}

?>

 

[Wuoshi]

Thank you! Great solution!

 

[Kate]

If you are looking for distinct values you can apply array_unique() function to your array

 

[Wuoshi]

Wow! That was easy, thanks alot!