AdsTxt PHP Parser

Table of Contents

• Introduction
• Installation
• Usage
  • Parsing AdsTxt from File
  • Parsing AdsTxt from String
  • Parsing AdsTxt from URL
  • Working with AdsTxt Instance
• Available Line Types
  • Vendor Line
  • Variable Line
  • Comment Line
  • Invalid Line
  • Blank Line

Introduction

The AdsTxt Parser for PHP is a simple and easy-to-use library that allows you to work with the Authorized Digital Sellers (ads.txt) file format in your PHP applications.

Installation

You can install the library via Composer. Run the following command in your project directory:

composer require badraxas/adstxt

Usage

Parsing AdsTxt from File

<?php

use Badraxas\Adstxt\AdsTxtParser;

try {
    $adsTxt = (new AdsTxtParser())->fromFile('/path/to/ads.txt');
    // You can now work with the $adsTxt instance containing the parsed data.
} catch (\Badraxas\Adstxt\Exceptions\AdsTxtParser\FileOpenException $exception) {
    // Handle the file open exception here.
}

Parsing AdsTxt from String

<?php 

use Badraxas\Adstxt\AdsTxt;
use Badraxas\Adstxt\AdsTxtParser;

$adsTxtContent = <<<'EOD'
# Example ads.txt content
example.com, 123456, DIRECT, ABCD1234
domain.com, 987654, RESELLER
custom_variable=custom_value
# This is a comment
EOD;

$adsTxt = (new AdsTxtParser())->fromString($adsTxtContent);
// Now you have an instance of AdsTxt containing the parsed data from the ads.txt string.
// You can use the $adsTxt object to perform various operations on the ads.txt data.

Parsing AdsTxt from URL

<?php

use Badraxas\Adstxt\AdsTxtFetcher;
use Psr\Http\Client\ClientInterface;
use Psr\Http\Message\RequestFactoryInterface;

// Assuming $client and $requestFactory are instances of ClientInterface and RequestFactoryInterface
$fetcher = new AdsTxtFetcher($client, $requestFactory);

try {
    $adsTxt = $fetcher->fromUrl('https://example.com/ads.txt');
    // You can now work with the $adsTxt instance containing the parsed data from the URL.
} catch (\Badraxas\Adstxt\Exceptions\AdsTxtParser\UrlOpenException $exception) {
    // Handle the URL open exception here.
}

PSR-18 and PSR-17 Compliance

To ensure interoperability and standard-compliant HTTP messaging, the AdsTxtFetcher class requires a PSR-18 compliant HTTP client (ClientInterface) and a PSR-17 compliant HTTP request factory (RequestFactoryInterface).
This design choice allows for flexibility in integrating the AdsTxtFetcher with various HTTP client implementations that conform to these PSR standards, ensuring a broad compatibility and the ability to easily swap different client implementations as needed.

Working with AdsTxt Instance

<?php

use Badraxas\Adstxt\AdsTxt;
use Badraxas\Adstxt\Enums\Relationship;
use Badraxas\Adstxt\Lines\Record;
use Badraxas\Adstxt\Lines\Comment;
use Badraxas\Adstxt\Lines\Variable;

// Assuming $adsTxt is an instance of AdsTxt
$invalidLines = $adsTxt->getInvalidLines();
$isAdsTxtValid = $adsTxt->isValid();

// Add custom filtering using callback
$filteredAdsTxt = $adsTxt->filter(function ($line) {
    // Your custom filtering logic here
    return $line instanceof Record; // Return true if the line should be included, false otherwise
});

// Compare the current AdsTxt instance with another AdsTxt instance and return the lines that are missing.
     * in the other instance
$otherAdsTxt = AdsTxtParser::fromFile('/path/to/other_ads.txt');
$missingLines = $adsTxt->diff($otherAdsTxt);

// Create new AdsTxt and add lines
$newAdsTxt = new AdsTxt();
$newAdsTxt
    ->addLine(new Comment(' app-ads.txt file for vMVPD B:'))
    ->addLine(new Record('ssp.com', 'vwxyz', 'DIRECT'))
    ->addLine(new Variable('inventorypartnerdomain', 'programmerA.com'))

// display ads.txt as string
$newAdsTxt->__toString();

Available Line Types

Vendor Line

The Vendor line represents a line in the ads.txt file containing vendor information.

<?php

use Badraxas\Adstxt\Lines\Record;
use Badraxas\Adstxt\Enums\Relationship;

// Creating a Vendor line instance
$vendorLine = new Record(
  domain: 'example.com',
  publisherId: '123456',
  relationship: 'DIRECT',
  certificationId: 'ABCD1234',
  comment: null
);

Variable Line

The Variable line represents a line in the ads.txt file containing a variable with its name and value.

<?php

use Badraxas\Adstxt\Lines\Variable;

// Creating a Variable line instance
$variableLine = new Variable(
  name: 'custom_variable',
  value: 'custom_value',
  comment: null
);

Comment Line

The Comment line represents a comment line in the ads.txt file.

<?php

use Badraxas\Adstxt\Lines\Comment;

// Creating a Comment line instance
$commentLine = new Comment('This is a comment');

Note : you can associate a Comment instance to any instance of Vendor, Variable or Invalid.

use Badraxas\Adstxt\Lines\Comment;
use Badraxas\Adstxt\Lines\Variable;

new Variable(
    'variable',
    'value',
    new Comment('This is a comment')
);

Invalid Line

The Invalid line represents an invalid line in the ads.txt file.

<?php

use Badraxas\Adstxt\Lines\Invalid;

// Creating an Invalid line instance
$invalidLine = new Invalid('Invalid content');

Blank Line

The Blank line represent a blank line in the ads.txt.

<?php

use Badraxas\Adstxt\Lines\Blank;

// Creating an Invalid line instance
$blankLine = new Blank();