Title: WP_Font_Face::validate_fonts
Published: November 8, 2023
Last modified: May 20, 2026

---

# WP_Font_Face::validate_fonts( array $fonts ): array

## In this article

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

[ Back to top](https://developer.wordpress.org/reference/classes/wp_font_face/validate_fonts/?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.

Validates each of the font-face properties.

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

 `$fonts`arrayrequired

The fonts to valid.

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

 array Prepared font-faces organized by provider and font-family.

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

    ```php
    private function validate_fonts( array $fonts ) {
    	$validated_fonts = array();

    	foreach ( $fonts as $font_faces ) {
    		foreach ( $font_faces as $font_face ) {
    			$font_face = $this->validate_font_face_declarations( $font_face );
    			// Skip if failed validation.
    			if ( false === $font_face ) {
    				continue;
    			}

    			$validated_fonts[] = $font_face;
    		}
    	}

    	return $validated_fonts;
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/fonts/class-wp-font-face.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.0/src/wp-includes/fonts/class-wp-font-face.php#L109)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/fonts/class-wp-font-face.php#L109-L125)

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

| Uses | Description | 
| [WP_Font_Face::validate_font_face_declarations()](https://developer.wordpress.org/reference/classes/wp_font_face/validate_font_face_declarations/)`wp-includes/fonts/class-wp-font-face.php` |

Validates each font-face declaration (property and value pairing).

  |

| Used by | Description | 
| [WP_Font_Face::generate_and_print()](https://developer.wordpress.org/reference/classes/wp_font_face/generate_and_print/)`wp-includes/fonts/class-wp-font-face.php` |

Generates and prints the `@font-face` styles for the given fonts.

  |

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

| Version | Description | 
| [6.4.0](https://developer.wordpress.org/reference/since/6.4.0/) | Introduced. |

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