# PHP SEO 
[![Build Status](https://github.com/melbahja/seo/workflows/Test/badge.svg)](https://github.com/melbahja/seo/actions?query=workflow%3ATest) [![GitHub license](https://img.shields.io/github/license/melbahja/seo)](https://github.com/melbahja/seo/blob/master/LICENSE) ![Packagist PHP Version Support](https://img.shields.io/packagist/php-v/melbahja/seo) ![Packagist Version](https://img.shields.io/packagist/v/melbahja/seo) [![Twitter](https://img.shields.io/twitter/url/https/github.com/melbahja/seo.svg?style=social)](https://twitter.com/intent/tweet?url=https%3A%2F%2Fgithub.com%2Fmelbahja%2Fseo)

Simple PHP library to help developers 🍻 do better on-page SEO optimization

### PHP SEO features:

- [[👷]](#-generate-schemaorg) **Generate schema.org ld+json**
- [[🛀]](#-meta-tags) **Generate meta tags with twitter and open graph support**
- [[🌐]](#-sitemaps) **Generate sitemaps xml and indexes (supports: 🖺 news, 🖼 images, 📽 videos)**
- [[📤]](#-send-sitemaps-to-search-engines) **Submit new sitemaps to search engines**
- [[📤]](#-indexing-api) **Indexing API**
- [[🙈]](https://github.com/melbahja/seo/blob/master/composer.json) **No dependencies**

## Installation:
```bash
composer require melbahja/seo
```

## Usage:
Check this simple examples. (of course the composer autoload.php file is required)


#### 👷 Generate schema.org
```php
use Melbahja\Seo\Schema;
use Melbahja\Seo\Schema\Thing;

$schema = new Schema(
    new Thing('Organization', [
        'url'          => 'https://example.com',
        'logo'         => 'https://example.com/logo.png',
        'contactPoint' => new Thing('ContactPoint', [
            'telephone' => '+1-000-555-1212',
            'contactType' => 'customer service'
        ])
    ])
);

echo $schema;
```

**Results:** (formatted)
```html
<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@graph": [
    {
      "url": "https://example.com",
      "logo": "https://example.com/logo.png",
      "contactPoint": {
        "telephone": "+1-000-555-1212",
        "contactType": "customer service",
        "@type": "ContactPoint",
        "@context": "https://schema.org/"
      },
      "@type": "Organization",
      "@context": "https://schema.org/"
    }
  ]
}
</script>
```

```php
use Melbahja\Seo\Schema;
use Melbahja\Seo\Schema\Thing;

$product = new Thing('Product');
$product->name  = "Foo Bar";
$product->sku   = "sk12";
$product->image = "/image.jpeg";
$product->description = "testing";
$product->offers = new Thing('Offer', [
    'availability' => 'https://schema.org/InStock',
    'priceCurrency' => 'USD',
    "price" => "119.99",
    'url' => 'https://gool.com',
]);

$webpage = new Thing("WebPage", [
    '@id' => "https://example.com/product/#webpage",
    'url' => "https://example.com/product",
    'name' => 'Foo Bar',
]);


$schema = new Schema(
    $product,
    $webpage,
);

echo json_encode($schema, JSON_PRETTY_PRINT);
```
**Results:**
```json
{
  "@context": "https://schema.org",
  "@graph": [
    {
      "name": "Foo Bar",
      "sku": "sk12",
      "image": "/image.jpeg",
      "description": "testing",
      "offers": {
        "availability": "https://schema.org/InStock",
        "priceCurrency": "USD",
        "price": "119.99",
        "url": "https://gool.com",
        "@type": "Offer",
        "@context": "https://schema.org/"
      },
      "@type": "Product",
      "@context": "https://schema.org/"
    },
    {
      "@id": "https://example.com/product/#webpage",
      "url": "https://example.com/product",
      "name": "Foo Bar",
      "@type": "WebPage",
      "@context": "https://schema.org/"
    }
  ]
}
```

#### 🛀 Meta Tags

```php
use Melbahja\Seo\MetaTags;

$metatags = new MetaTags();

$metatags
        ->title('PHP SEO')
        ->description('This is my description')
        ->meta('author', 'Mohamed Elabhja')
        ->image('https://avatars3.githubusercontent.com/u/8259014')
        ->mobile('https://m.example.com')
        ->canonical('https://example.com')
        ->shortlink('https://git.io/phpseo')
        ->amp('https://apm.example.com');

echo $metatags;

```

**Results:**
```html
<title>PHP SEO</title>
<meta name="title" content="PHP SEO" />
<meta name="description" content="This is my description" />
<meta name="author" content="Mohamed Elabhja" />
<link href="https://m.example.com" rel="alternate" media="only screen and (max-width: 640px)" />
<link rel="canonical" href="https://example.com" />
<link rel="shortlink" href="https://git.io/phpseo" />
<link rel="amphtml" href="https://apm.example.com" />
<meta property="twitter:title" content="PHP SEO" />
<meta property="twitter:description" content="This is my description" />
<meta property="twitter:card" content="summary_large_image" />
<meta property="twitter:image" content="https://avatars3.githubusercontent.com/u/8259014" />
<meta property="og:title" content="PHP SEO" />
<meta property="og:description" content="This is my description" />
<meta property="og:image" content="https://avatars3.githubusercontent.com/u/8259014" />
```


#### 🗺 Sitemaps
```php
$yourmap = new Sitemap(string $url, array $options = []): SitemapIndexInterface
```
| Option name   | Description                                       | Required ?    | Default       |
| ------------- | -------------                                     | ---------     | --------      |
| save_path     | Generated sitemaps storage path                   | YES           |               |
| sitemaps_url  | Sitemap index custom url for generated sitemaps   | NO            | $url          |
| index_name    | Custom sitemap index name                         | NO            | sitemap.xml   |

##### Simple Example
```php
use Melbahja\Seo\Sitemap;

$sitemap = new Sitemap('https://example.com', ['save_path' => '/path/to_save/files']);

$sitemap->links('blog.xml', function($map)
{
    $map->loc('/blog')->freq('daily')->priority('0.8')
        ->loc('/blog/my-new-article')->freq('weekly')->lastMod('2019-03-01')
        ->loc('/اهلا-بالعالم')->freq('weekly');
    $map->loc('/blog/hello')->freq('monthly');
});

// return bool
// throws SitemapException if save_path options not exists
$sitemap->save();
```

**Results:** (📂 in: /path/to_save/files/)

📁: sitemap.xml (formatted)
```xml
<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated by https://git.io/phpseo -->
<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
    <sitemap>
        <loc>https://example.com/blog.xml</loc>
        <lastmod>2019-03-01T14:38:02+01:00</lastmod>
    </sitemap>
</sitemapindex>
```

📁: blog.xml (formatted)
```xml
<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated by https://git.io/phpseo -->
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
    <url>
      <loc>https://example.com/blog</loc>
      <changefreq>daily</changefreq>
      <priority>0.8</priority>
    </url>
    <url>
      <loc>https://example.com/blog/my-new-article</loc>
      <changefreq>weekly</changefreq>
      <lastmod>2019-03-01T00:00:00+01:00</lastmod>
    </url>
    <url>
      <loc>https://example.com/%D8%A7%D9%87%D9%84%D8%A7-%D8%A8%D8%A7%D9%84%D8%B9%D8%A7%D9%84%D9%85</loc>
      <changefreq>weekly</changefreq>
    </url>
    <url>
      <loc>https://example.com/blog/hello</loc>
      <changefreq>monthly</changefreq>
    </url>
</urlset>
```

##### Multipe Sitemaps && Images
```php
use Melbahja\Seo\Sitemap;

$sitemap = new Sitemap('https://example.com');

// Instead of passing save_path to the factory you can set it later via setSavePath
// also $sitemap->getSavePath() method to get the current save_path
$sitemap->setSavePath('your_save/path');

// changing sitemap index name
$sitemap->setIndexName('index.xml');

// For images you need to pass a option images => true
$sitemap->links(['name' => 'blog.xml', 'images' => true], function($map)
{
    $map->loc('/blog')->freq('daily')->priority('0.8')
        ->loc('/blog/my-new-article')
            ->freq('weekly')
            ->lastMod('2019-03-01')
            ->image('/uploads/image.jpeg', ['caption' => 'My caption'])
        ->loc('/اهلا-بالعالم')->freq('weekly');

    // image(string $url, array $options = []), image options: caption, geo_location, title, license
    // see References -> images
    $map->loc('/blog/hello')->freq('monthly')->image('https://cdn.example.com/image.jpeg');
});

// another file
$sitemap->links('blog_2.xml', function($map)
{
    // Mabye you need to loop through posts form your database ?
    foreach (range(0, 4) as $i)
    {
        $map->loc("/posts/{$i}")->freq('weekly')->priority('0.7');
    }
});

$sitemap->save();

```

**Results**

📁: index.xml
```xml
<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated by https://git.io/phpseo -->
<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
    <sitemap>
        <loc>https://example.com/blog.xml</loc>
        <lastmod>2019-03-01T15:13:22+01:00</lastmod>
    </sitemap>
    <sitemap>
        <loc>https://example.com/blog_2.xml</loc>
        <lastmod>2019-03-01T15:13:22+01:00</lastmod>
    </sitemap>
</sitemapindex>

```

📁: blog.xml
```xml
<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated by https://git.io/phpseo -->
<urlset
    xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
    xmlns:image="http://www.google.com/schemas/sitemap-image/1.1">
    <url>
        <loc>https://example.com/blog</loc>
        <changefreq>daily</changefreq>
        <priority>0.8</priority>
    </url>
    <url>
        <loc>https://example.com/blog/my-new-article</loc>
        <changefreq>weekly</changefreq>
        <lastmod>2019-03-01T00:00:00+01:00</lastmod>
        <image:image>
            <image:caption>My caption</image:caption>
            <image:loc>https://example.com/uploads/image.jpeg</image:loc>
        </image:image>
    </url>
    <url>
        <loc>https://example.com/%D8%A7%D9%87%D9%84%D8%A7-%D8%A8%D8%A7%D9%84%D8%B9%D8%A7%D9%84%D9%85</loc>
        <changefreq>weekly</changefreq>
    </url>
    <url>
        <loc>https://example.com/blog/hello</loc>
        <changefreq>monthly</changefreq>
        <image:image>
            <image:loc>https://cdn.example.com/image.jpeg</image:loc>
        </image:image>
    </url>
</urlset>
```

📁: blog_2.xml
```xml
<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated by https://git.io/phpseo -->
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
    <url>
        <loc>https://example.com/posts/0</loc>
        <changefreq>weekly</changefreq>
        <priority>0.7</priority>
    </url>
    <url>
        <loc>https://example.com/posts/1</loc>
        <changefreq>weekly</changefreq>
        <priority>0.7</priority>
    </url>
    <url>
        <loc>https://example.com/posts/2</loc>
        <changefreq>weekly</changefreq>
        <priority>0.7</priority>
    </url>
    <url>
        <loc>https://example.com/posts/3</loc>
        <changefreq>weekly</changefreq>
        <priority>0.7</priority>
    </url>
    <url>
        <loc>https://example.com/posts/4</loc>
        <changefreq>weekly</changefreq>
        <priority>0.7</priority>
    </url>
</urlset>
```

##### Sitemap with videos
```php
$sitemap = (new Sitemap('https://example.com'))
                ->setSavePath('./storage/sitemaps')
                ->setSitemapsUrl('https://example.com/sitemaps')
                ->setIndexName('index.xml');

$sitemap->links(['name' => 'posts.xml', 'videos' => true], function($map)
{
    $map->loc('/posts/clickbait-video')->video('My Clickbait Video title',
    [
        // or thumbnail_loc
        'thumbnail' => 'https://example.com/thumbnail.jpeg',
        'description' => 'My description',
        // player_loc or content_loc one of them is required
        'player_loc' => 'https://example.com/embed/81287127'

        // for all availabe options see References -> videos
    ]);

    $map->loc('posts/bla-bla');
});

$sitemap->save();
```
**Results**

📁: index.xml
```xml
<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated by https://git.io/phpseo -->
<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
    <sitemap>
        <loc>https://example.com/sitemaps/posts.xml</loc>
        <lastmod>2019-03-01T15:30:02+01:00</lastmod>
    </sitemap>
</sitemapindex>
```
**Note:** lastmod in sitemap index files are generated automatically

📁: posts.xml
```xml
<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated by https://git.io/phpseo -->
<urlset
    xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
    xmlns:video="http://www.google.com/schemas/sitemap-video/1.1">
    <url>
        <loc>https://example.com/posts/clickbait-video</loc>
        <video:video>
            <video:description>My description</video:description>
            <video:player_loc>https://example.com/embed/81287127</video:player_loc>
            <video:title>My Clickbait Video title</video:title>
            <video:thumbnail_loc>https://example.com/thumbnail.jpeg</video:thumbnail_loc>
        </video:video>
    </url>
    <url>
        <loc>https://example.com/posts/bla-bla</loc>
    </url>
</urlset>
```

##### News Sitemaps

```php
use Melbahja\Seo\Factory;

$sitemap = Factory::sitemap('https://example.com',
[
    // You can also customize your options by passing array to the factory like this
    'save_path' => './path',
    'sitemaps_url' => 'https://example.com/maps',
    'index_name' => 'news_index.xml'
]);

$sitemap->news('my_news.xml', function($map)
{
    // publication: name, language
    // Google quote about the name: "It must exactly match the name as
    // it appears on your articles on news.google.com"
    $map->setPublication('PHP NEWS', 'en');

    $map->loc('/news/12')->news(
    [
       'title' => 'PHP 8 Released',
       'publication_date' => '2019-03-01T15:30:02+01:00',
    ]);

    $map->loc('/news/13')->news(
    [
        'title' => 'PHP 8 And High Performance',
        'publication_date' => '2019-04-01T15:30:02+01:00'
    ]);
});

$sitemap->save();
```

**Results**

📁: news_index.xml
```xml
<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated by https://git.io/phpseo -->
<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
    <sitemap>
        <loc>https://example.com/maps/my_news.xml</loc>
        <lastmod>2019-03-01T15:57:10+01:00</lastmod>
    </sitemap>
</sitemapindex>
```

📁: my_news.xml
```xml
<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated by https://git.io/phpseo -->
<urlset
    xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
    xmlns:news="https://www.google.com/schemas/sitemap-news/0.9">
    <url>
        <loc>https://example.com/news/12</loc>
        <news:news>
            <news:publication>
                <news:name>PHP NEWS</news:name>
                <news:language>en</news:language>
            </news:publication>
            <news:title>PHP 8 Released</news:title>
            <news:publication_date>2019-03-01T15:30:02+01:00</news:publication_date>
        </news:news>
    </url>
    <url>
        <loc>https://example.com/news/13</loc>
        <news:news>
            <news:publication>
                <news:name>PHP NEWS</news:name>
                <news:language>en</news:language>
            </news:publication>
            <news:title>PHP 8 And High Performance</news:title>
            <news:publication_date>2019-04-01T15:30:02+01:00</news:publication_date>
        </news:news>
    </url>
</urlset>
```

**Google quote:** ⚠ "If you submit your News sitemap before your site has been reviewed and approved by our team, you may receive errors." ⚠


#### 🤖 Send Sitemaps To Search Engines

According to the sitemaps protocol, search engines should have a url that allow you to inform them about your new sitemap files. like: <searchengine_URL>/ping?sitemap=sitemap_url

```php
use Melbahja\Seo\Ping;

$ping = new Ping;

// the void method send() will inform via CURL: google, bing and yandex about your new file
$ping->send('https://example.com/sitemap_file.xml');

```

## Indexing API

This is the first PHP library to support the new search engines indexing API (aka indexnow.org).

```php
use Melbahja\Seo\Indexing;

$indexer = new Indexing('www.example.cpm', [
    'bing.com' => 'your_api_key_here',
    'yandex.com' => 'your_api_key_here',
]);


// index single url.
$indexer->indexUrl('https://www.example.com/page');

// index multi urls.
$indexer->indexUrls(['https://www.example.com/page']);

```

## Sponsors:

Special thanks to friends who support this work financially:

[![EvoluData](https://www.evoludata.com/display208)](https://www.evoludata.com)


## References
- [Sitemaps protocol (https://www.sitemaps.org/protocol.html)](https://www.sitemaps.org/protocol.html)
- [Build Sitemaps (https://support.google.com/webmasters/answer/183668?hl=en)](https://support.google.com/webmasters/answer/183668?hl=en)
- [News Sitemaps (https://support.google.com/webmasters/answer/74288)](https://support.google.com/webmasters/answer/74288)
- [Image Sitempas (https://support.google.com/webmasters/answer/178636)](https://support.google.com/webmasters/answer/178636)
- [Video Sitemaps (https://support.google.com/webmasters/answer/80471)](https://support.google.com/webmasters/answer/80471)
- [Mobile (https://developers.google.com/search/mobile-sites/mobile-seo/other-devices)](https://developers.google.com/search/mobile-sites/mobile-seo/other-devices)


## License:
[MIT](https://github.com/melbahja/seo/blob/master/LICENSE) Copyright (c) 2019-present Mohamed Elbahja
