# Get_OGP_InWP
Get OGP information of external site by utilizing WordPress function.


## Usage

### ::get() method

Get OGP and metadata information from external sites.

```
require_once 'get_ogp_inwp.php';

$url  = 'https://example.com/hoge/';
$ogps = \Get_OGP_InWP::get( $url );
```

#### About the second argument

You can specify arguments to pass to wp_remote_get().


```
require_once 'get_ogp_inwp.php';

$url = 'https://example.com/hoge/';

// For example like this. (This is the default value)
$fetch_args = [
    'timeout'     => 15,
    'redirection' => 3,
    'sslverify'   => false,
];

$ogps = \Get_OGP_InWP::get( $url, $fetch_args );
```

#### About the 3rd argument

You can specify the OGP and metadata you want to acquire.


```
require_once 'get_ogp_inwp.php';

$url = 'https://example.com/hoge/';

// For example like this. (This is the default value)
$targets = [
    'title'    => true,
    'icon'     => true,
    'og'       => true,
    'fb'       => true,
    'twitter'  => true,
    'meta'     => [
        'description',
        'thumbnail',
    ],
];

$ogps = \Get_OGP_InWP::get( $url, null, $targets );
```

### ::extract_card_data() method

Extract the information required for the blog card from the acquired OGP data.

```
require_once 'get_ogp_inwp.php';

$url       = 'https://example.com/hoge/';
$ogps      = \Get_OGP_InWP::get( $url );
$card_data = \Get_OGP_InWP::extract_card_data( $ogps );
```

The following data will be returned.

- 'site_name'
- 'title'
- 'description'
- 'thumbnail'
- 'icon'

If the data for each element could not be obtained, an empty string is stored.