File comparison

Question

I have a php project for uploading files. If I upload a file it should compare with the uploaded file and should tell matching percentage.. Is there any php code available for that??

Answer 1

You can use this code to compare two filenames.
I've no Idea to compare the file contents too.
<?php
$var_1 = 'ab.txt';
$var_2 = 'ba.txt';

similar_text($var_1, $var_2, $percent);
echo $percent;

?>