Search for a word

[Dizzee15]

Is there any function that would find specified word in another file. Lets say we got file called information.txt :

one=1|two=2|three=3

Now, first lets say I want to check if there is a word "two" in that file, then find it's number - "2". I need code.

[flyhoney]

<?php

// First, read file into an array

$lines = file('information.txt');

$information = array();

foreach ($lines as $line)
{
    $words = explode('|', $line);
    foreach ($words as $word)
    {
        list($term, $count) = explode('=', $word);
        if (isset($information[$term]))
        {
            $information[$term] += $count;
        }
        else
        {
            $information[$term] = $count;
        } 
    }
}

// And now you can search the array for words.
$word_to_find = 'two';

if (isset($information[$word_to_find]))
{
    echo "$word_to_find is in the file and it's count is {$information[$word_to_find]}";
}

[Dizzee15]

Thanks .

[Dizzee15]

Ohh and by the way.

echo "$word_to_find is in the file and it's count is {$information[$word_to_find]}";

Are "{}" really needed, what for ?