PHP code example of yusitnikov / php-diff

1. Go to this page and download the library: Download yusitnikov/php-diff library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

yusitnikov / php-diff example snippets


use Chameleon\PhpDiff\LevenshteinDiffCalculator;

$s1 = 'Levenshtein';
$s2 = 'Einstein';

$differ = new LevenshteinDiffCalculator();
var_dump($differ->calcDistance($s1, $s2));
var_dump($differ->calcDiff($s1, $s2));


use Chameleon\PhpDiff\LevenshteinDiffCalculator;
use Chameleon\PhpDiff\OperationCostCalculator;

$s1 = 'And now here is my secret,
a very simple secret:
it is only with the heart that one can see rightly,
what is essential is invisible to the eye.

"The Little Prince", Antoine de Saint-Exupéry';

$s2 = '> So here is my secret,
> its only with heart that somebody can see rightly,
> what is essential is always invisible to the eye.
> I can promise it to you.

- Le Petit Prince, Antoine Marie Jean-Baptiste Roger, comte de Saint-Exupéry';
$lineDiffer = new LevenshteinDiffCalculator(LevenshteinDiffCalculator::SPLIT_WORDS_REGEX);
$textDiffer = new LevenshteinDiffCalculator(
    LevenshteinDiffCalculator::SPLIT_LINES_REGEX,
    (new OperationCostCalculator())->setReplaceDistanceCalculator($lineDiffer),
    $lineDiffer
);
$result = $textDiffer->calcDiff($s1, $s2);

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