Disallow Video Mime Types

Property	Value
description	Disallow common video MIME types from Media Library uploads.
tags	lib, php, wp, oop
rating

Human: 3 - Mixed authorship

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

Overview

Disallow common video file types from WordPress media uploads.

The snippet removes MIME mappings for mp4, mov, webm, avi, mkv, wmv, and m4v through the upload_mimes filter. Use it when video files should live in a dedicated video host or storage workflow instead of the Media Library.

Variants

Procedural

Add Macro

Add wp-disallow-video-mime-types macro.

<?php
/**
 * Disallow common video MIME types from uploads.
 *
 * @param array<string,string> $mimes Allowed MIME types.
 * @return array<string,string>
 */
if ( ! function_exists( 'mac_disallow_video_mime_types' ) ) {

    function mac_disallow_video_mime_types( array $mimes ): array {

        /** @var string[] $blocked_extensions */
        $blocked_extensions = [
            'mp4',
            'mov',
            'webm',
            'avi',
            'mkv',
            'wmv',
            'm4v',
        ];

        foreach ( array_keys( $mimes ) as $key ) {

            $extensions = explode( '|', strtolower( (string) $key ) );

            if ( array_intersect( $extensions, $blocked_extensions ) ) {
                unset( $mimes[ $key ] );
            }
        }

        return $mimes;
    }
}

add_filter( 'upload_mimes', 'mac_disallow_video_mime_types' );

OOP

Add Macro

Add wp-disallow-video-mime-types--oop macro.

<?php
/**
 * Disallow common video MIME types from uploads.
 *
 * @package mac-core
 */

declare(strict_types=1);

namespace MacCore\Services\Media;

use MacCore\Contracts\Service;

final class DisallowVideoMimeTypes implements Service
{
    /**
     * Blocked video file extensions.
     *
     * @var array<int,string>
     */
    private const BLOCKED_EXTENSIONS = [
        'mp4',
        'mov',
        'webm',
        'avi',
        'mkv',
        'wmv',
        'm4v',
    ];

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

    public function disallow_video_mimes( array $mimes ): array
    {
        foreach ( array_keys( $mimes ) as $key ) {
            $extensions = \explode( '|', \strtolower( (string) $key ) );

            if ( \array_intersect( $extensions, self::BLOCKED_EXTENSIONS ) ) {
                unset( $mimes[ $key ] );
            }
        }

        return $mimes;
    }
}