/home/kueuepay/public_html/vendor/sebastian/diff/README.md
# sebastian/diff

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Diff implementation for PHP, factored out of PHPUnit into a stand-alone component.

## Installation

You can add this library as a local, per-project dependency to your project using [Composer](https://getcomposer.org/):

```
composer require sebastian/diff
```

If you only need this library during development, for instance to run your project's test suite, then you should add it as a development-time dependency:

```
composer require --dev sebastian/diff
```

### Usage

#### Generating diff

The `Differ` class can be used to generate a textual representation of the difference between two strings:

```php
<?php
use SebastianBergmann\Diff\Differ;

$differ = new Differ;
print $differ->diff('foo', 'bar');
```

The code above yields the output below:
```diff
--- Original
+++ New
@@ @@
-foo
+bar
```

There are three output builders available in this package:

#### UnifiedDiffOutputBuilder

This is default builder, which generates the output close to udiff and is used by PHPUnit.

```php
<?php

use SebastianBergmann\Diff\Differ;
use SebastianBergmann\Diff\Output\UnifiedDiffOutputBuilder;

$builder = new UnifiedDiffOutputBuilder(
    "--- Original\n+++ New\n", // custom header
    false                      // do not add line numbers to the diff 
);

$differ = new Differ($builder);
print $differ->diff('foo', 'bar');
```

#### StrictUnifiedDiffOutputBuilder

Generates (strict) Unified diff's (unidiffs) with hunks,
similar to `diff -u` and compatible with `patch` and `git apply`.

```php
<?php

use SebastianBergmann\Diff\Differ;
use SebastianBergmann\Diff\Output\StrictUnifiedDiffOutputBuilder;

$builder = new StrictUnifiedDiffOutputBuilder([
    'collapseRanges'      => true, // ranges of length one are rendered with the trailing `,1`
    'commonLineThreshold' => 6,    // number of same lines before ending a new hunk and creating a new one (if needed)
    'contextLines'        => 3,    // like `diff:  -u, -U NUM, --unified[=NUM]`, for patch/git apply compatibility best to keep at least @ 3
    'fromFile'            => null,
    'fromFileDate'        => null,
    'toFile'              => null,
    'toFileDate'          => null,
]);

$differ = new Differ($builder);
print $differ->diff('foo', 'bar');
```

#### DiffOnlyOutputBuilder

Output only the lines that differ.

```php
<?php

use SebastianBergmann\Diff\Differ;
use SebastianBergmann\Diff\Output\DiffOnlyOutputBuilder;

$builder = new DiffOnlyOutputBuilder(
    "--- Original\n+++ New\n"
);

$differ = new Differ($builder);
print $differ->diff('foo', 'bar');
```

#### DiffOutputBuilderInterface

You can pass any output builder to the `Differ` class as longs as it implements the `DiffOutputBuilderInterface`.

#### Parsing diff

The `Parser` class can be used to parse a unified diff into an object graph:

```php
use SebastianBergmann\Diff\Parser;
use SebastianBergmann\Git;

$git = new Git('/usr/local/src/money');

$diff = $git->getDiff(
  '948a1a07768d8edd10dcefa8315c1cbeffb31833',
  'c07a373d2399f3e686234c4f7f088d635eb9641b'
);

$parser = new Parser;

print_r($parser->parse($diff));
```

The code above yields the output below:

    Array
    (
        [0] => SebastianBergmann\Diff\Diff Object
            (
                [from:SebastianBergmann\Diff\Diff:private] => a/tests/MoneyTest.php
                [to:SebastianBergmann\Diff\Diff:private] => b/tests/MoneyTest.php
                [chunks:SebastianBergmann\Diff\Diff:private] => Array
                    (
                        [0] => SebastianBergmann\Diff\Chunk Object
                            (
                                [start:SebastianBergmann\Diff\Chunk:private] => 87
                                [startRange:SebastianBergmann\Diff\Chunk:private] => 7
                                [end:SebastianBergmann\Diff\Chunk:private] => 87
                                [endRange:SebastianBergmann\Diff\Chunk:private] => 7
                                [lines:SebastianBergmann\Diff\Chunk:private] => Array
                                    (
                                        [0] => SebastianBergmann\Diff\Line Object
                                            (
                                                [type:SebastianBergmann\Diff\Line:private] => 3
                                                [content:SebastianBergmann\Diff\Line:private] =>      * @covers SebastianBergmann\Money\Money::add
                                            )

                                        [1] => SebastianBergmann\Diff\Line Object
                                            (
                                                [type:SebastianBergmann\Diff\Line:private] => 3
                                                [content:SebastianBergmann\Diff\Line:private] =>      * @covers SebastianBergmann\Money\Money::newMoney
                                            )

                                        [2] => SebastianBergmann\Diff\Line Object
                                            (
                                                [type:SebastianBergmann\Diff\Line:private] => 3
                                                [content:SebastianBergmann\Diff\Line:private] =>      */
                                            )

                                        [3] => SebastianBergmann\Diff\Line Object
                                            (
                                                [type:SebastianBergmann\Diff\Line:private] => 2
                                                [content:SebastianBergmann\Diff\Line:private] =>     public function testAnotherMoneyWithSameCurrencyObjectCanBeAdded()
                                            )

                                        [4] => SebastianBergmann\Diff\Line Object
                                            (
                                                [type:SebastianBergmann\Diff\Line:private] => 1
                                                [content:SebastianBergmann\Diff\Line:private] =>     public function testAnotherMoneyObjectWithSameCurrencyCanBeAdded()
                                            )

                                        [5] => SebastianBergmann\Diff\Line Object
                                            (
                                                [type:SebastianBergmann\Diff\Line:private] => 3
                                                [content:SebastianBergmann\Diff\Line:private] =>     {
                                            )

                                        [6] => SebastianBergmann\Diff\Line Object
                                            (
                                                [type:SebastianBergmann\Diff\Line:private] => 3
                                                [content:SebastianBergmann\Diff\Line:private] =>         $a = new Money(1, new Currency('EUR'));
                                            )

                                        [7] => SebastianBergmann\Diff\Line Object
                                            (
                                                [type:SebastianBergmann\Diff\Line:private] => 3
                                                [content:SebastianBergmann\Diff\Line:private] =>         $b = new Money(2, new Currency('EUR'));
                                            )
                                    )
                            )
                    )
            )
    )
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Enhancing Payment Security: The Role of Encryption and Tokenization in Digital Transactions

As digital transactions proliferate, ensuring robust payment security is more critical than ever. Two foundational technologies that are pivotal in this effort are encryption and tokenization.
Encryption is a process that transforms data into a secure format, known as ciphertext, which can only be deciphered using a specific decryption key. This means that even if data is intercepted during transmission, it remains unreadable and protected from unauthorized access. Encryption is essential in safeguarding sensitive payment information, such as credit card details and personal data, during online transactions.
Tokenization, on the other hand, involves substituting sensitive data with unique identifiers or "tokens." These tokens serve as placeholders and have no value outside of the specific transaction context. If intercepted, tokens are meaningless and cannot be used to access the original sensitive data. This method significantly reduces the risk of fraud and data breaches, as the actual payment information is not stored or transmitted.
Together, encryption and tokenization form a powerful security framework. Encryption ensures that data is protected during transmission, while tokenization minimizes the risk of exposing sensitive information by replacing it with secure, non-sensitive tokens.
These technologies are integral to modern payment platforms, providing a robust defense against cyber threats. By implementing advanced encryption and tokenization techniques, businesses can enhance the security of digital transactions, ensuring that users' financial and personal information remains safe. This comprehensive approach not only builds user trust but also fortifies the overall security infrastructure of digital payment systems. As cyber threats evolve, the continued advancement of encryption and tokenization will be crucial in maintaining secure and reliable payment processes.

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