Allow Font Mime Types

Property	Value
description	Allow common font MIME types for uploads.
tags	lib, php, wp, oop
rating

Human: 3 - Mixed authorship

Roughly half AI, half human. Core content reviewed, but minor risk remains.

Overview

Allow common font file types in WordPress media uploads.

The snippet adds MIME mappings for ttf, otf, woff, woff2, and eot through the upload_mimes filter. Use it when a site needs to upload custom fonts through the Media Library or a builder's font upload UI.

Variants

Procedural

Add Macro

Add wp-allow-font-mime-types macro.

<?php
/**
 * Allow common font MIME types for uploads.
 *
 * @param array<string,string> $mimes Allowed MIME types.
 * @return array<string,string>
 */
if ( ! function_exists( 'mac_allow_font_mime_types' ) ) {

    function mac_allow_font_mime_types( array $mimes ): array {

        /** @var array<string,string> $font_mimes */
        $font_mimes = [
            'ttf'   => 'font/sfnt',
            'otf'   => 'font/otf',
            'woff'  => 'font/woff',
            'woff2' => 'font/woff2',
            'eot'   => 'application/vnd.ms-fontobject',
        ];

        foreach ( $font_mimes as $ext => $mime ) {
            $mimes[ $ext ] = $mime;
        }

        return $mimes;
    }
}

add_filter( 'upload_mimes', 'mac_allow_font_mime_types' );

OOP

Add Macro

Add wp-allow-font-mime-types--oop macro.

<?php
/**
 * Allow common font MIME types for uploads.
 *
 * @package mac-core
 */

declare(strict_types=1);

namespace MacCore\Services\Media;

use MacCore\Contracts\Service;

final class AllowFontMimeTypes implements Service
{
    /**
     * Allowed font MIME types.
     *
     * @var array<string,string>
     */
    private const MIME_TYPES = [
        'ttf'   => 'font/sfnt',
        'otf'   => 'font/otf',
        'woff'  => 'font/woff',
        'woff2' => 'font/woff2',
        'eot'   => 'application/vnd.ms-fontobject',
    ];

    public function register(): void
    {
        \add_filter(
            'upload_mimes',
            [$this, 'allow_font_mimes']
        );
    }

    public function allow_font_mimes( array $mimes ): array
    {
        foreach ( self::MIME_TYPES as $ext => $mime ) {
            $mimes[ $ext ] = $mime;
        }

        return $mimes;
    }
}