Title: WP_Font_Collection::load_from_file
Published: April 3, 2024
Last modified: May 20, 2026

---

# WP_Font_Collection::load_from_file( string $file ): array|󠀁[WP_Error](https://developer.wordpress.org/reference/classes/wp_error/)󠁿

## In this article

 * [Parameters](https://developer.wordpress.org/reference/classes/wp_font_collection/load_from_file/?output_format=md#parameters)
 * [Return](https://developer.wordpress.org/reference/classes/wp_font_collection/load_from_file/?output_format=md#return)
 * [Source](https://developer.wordpress.org/reference/classes/wp_font_collection/load_from_file/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/classes/wp_font_collection/load_from_file/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/classes/wp_font_collection/load_from_file/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/classes/wp_font_collection/load_from_file/?output_format=md#wp--skip-link--target)

This function’s access is marked private. This means it is not intended for use 
by plugin or theme developers, only by core. It is listed here for completeness.

Loads the font collection data from a JSON file path.

## 󠀁[Parameters](https://developer.wordpress.org/reference/classes/wp_font_collection/load_from_file/?output_format=md#parameters)󠁿

 `$file`stringrequired

File path to a JSON file containing the font collection data.

## 󠀁[Return](https://developer.wordpress.org/reference/classes/wp_font_collection/load_from_file/?output_format=md#return)󠁿

 array|[WP_Error](https://developer.wordpress.org/reference/classes/wp_error/) An
array containing the font collection data on success, else an instance of [WP_Error](https://developer.wordpress.org/reference/classes/wp_error/)
on failure.

## 󠀁[Source](https://developer.wordpress.org/reference/classes/wp_font_collection/load_from_file/?output_format=md#source)󠁿

    ```php
    private function load_from_file( $file ) {
    	$data = wp_json_file_decode( $file, array( 'associative' => true ) );
    	if ( empty( $data ) ) {
    		return new WP_Error( 'font_collection_decode_error', __( 'Error decoding the font collection JSON file contents.' ) );
    	}

    	return $this->sanitize_and_validate_data( $data, array( 'font_families' ) );
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/fonts/class-wp-font-collection.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.0/src/wp-includes/fonts/class-wp-font-collection.php#L158)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/fonts/class-wp-font-collection.php#L158-L165)

## 󠀁[Related](https://developer.wordpress.org/reference/classes/wp_font_collection/load_from_file/?output_format=md#related)󠁿

| Uses | Description | 
| [WP_Font_Collection::sanitize_and_validate_data()](https://developer.wordpress.org/reference/classes/wp_font_collection/sanitize_and_validate_data/)`wp-includes/fonts/class-wp-font-collection.php` |

Sanitizes and validates the font collection data.

  | 
| [wp_json_file_decode()](https://developer.wordpress.org/reference/functions/wp_json_file_decode/)`wp-includes/functions.php` |

Reads and decodes a JSON file.

  | 
| [__()](https://developer.wordpress.org/reference/functions/__/)`wp-includes/l10n.php` |

Retrieves the translation of $text.

  | 
| [WP_Error::__construct()](https://developer.wordpress.org/reference/classes/wp_error/__construct/)`wp-includes/class-wp-error.php` |

Initializes the error.

  |

[Show 2 more](https://developer.wordpress.org/reference/classes/wp_font_collection/load_from_file/?output_format=md#)
[Show less](https://developer.wordpress.org/reference/classes/wp_font_collection/load_from_file/?output_format=md#)

| Used by | Description | 
| [WP_Font_Collection::load_from_json()](https://developer.wordpress.org/reference/classes/wp_font_collection/load_from_json/)`wp-includes/fonts/class-wp-font-collection.php` |

Loads font collection data from a JSON file or URL.

  |

## 󠀁[Changelog](https://developer.wordpress.org/reference/classes/wp_font_collection/load_from_file/?output_format=md#changelog)󠁿

| Version | Description | 
| [6.5.0](https://developer.wordpress.org/reference/since/6.5.0/) | Introduced. |

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