Little PHP problem. Help please.

I have a numbers.txt file

like (inside of the numbers.txt) file:

NEED2921
SUDA9281
MUHEA921
LEHJA222
JJJKEL22
SUDA9281

I need a function that check the each line of numbers.txt file and show me same lines in the text.

Example as the datas below function should write:
SUDA9281

Thank you.

 

You may have to use fgets(). see http://www.php.net/fgets

 

hello thank you for your answer.

i'm not familiar with PHP. So this url will make no sense in my mind.

 

Using file() is better for line reading.

$file = file('numbers.txt');
print_r($file);

PHP:

 

But how to check if there are same values exist on the lines?

 

So you want to display duplicates? That is easy to implement.

$lines = file('numbers.txt');
$count = count($lines);
for ($i = 0; $i < $count; $i++) {
    $temp = $lines[$i];
    unset($lines[$i]);
    if (in_array($temp, $lines)) {
        echo $temp, '<br>';
    }
}

PHP:

Looks pretty straightforward, if you need explanation I will gladly do it.

 

You are so kind. as i am not familiar with PHP I don't need any explanations but to add the archive better to add explanations for further questions regarding to this. thank you.