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Find the quick difference between two text files in PHP.

v1.0.3 2022-05-30 13:55 UTC

This package is auto-updated.

Last update: 2024-04-07 15:34:02 UTC


Find the quick difference between two text files in PHP.


The library compares two text files very quickly and returns the object with the differences.

The difference has numbered lines for easy display of changes to the user. You can also read an array of changed rows as an integer array from the Diff object as you browse for changes.

📦 Installation

It's best to use Composer for installation, and you can also find the package on Packagist and GitHub.

To install, simply use the command:

$ composer require baraja-core/simple-php-diff

You can use the package manually by creating an instance of the internal classes, or register a DIC extension to link the services directly to the Nette Framework.


Default theme

Diff can be rendered to HTML (with native method SimpleDiff::renderDiff($diff):

Default theme

How to use

Simply create a SimpleDiff instance and compare the two files:

$left = 'First text';
$right = 'Second text';

$diff = (new \Baraja\DiffGenerator\SimpleDiff)->compare($left, $right);

// simple render diff
echo '<code><pre>'
     . htmlspecialchars((string) $diff)
     . '</pre></code>';

The compare() method returns a complete object Diff with the results of the comparison, from which you can get much more.

For example, to get a list of changed rows:

echo 'Changed lines: ';
echo implode(', ', $diff->getChangedLines());

Display the Diff in HTML

Very often we need to display the differences directly in the browser, for this the native method renderDiff() is suitable.

$left = 'First text';
$right = 'Second text';

$simpleDiff = new \Baraja\DiffGenerator\SimpleDiff;
$diff = $simpleDiff->compare($left, $right);

echo $simpleDiff->renderDiff($diff);

The method accepts Diff and returns valid treated HTML that can be displayed directly to the user.

Comparison mode

This tool supports strict and basic comparison modes (strict mode is disabled by default). Strict mode also allows you to compare changes in different line wrapping methods (for example, "\n" and so on).

📄 License

baraja-core/simple-php-diff is licensed under the MIT license. See the LICENSE file for more details.