fixa fula filnamn wordpress frozzare style

fix-fugly-filenames-frozzare.php

<?php
add_filter( 'wp_handle_upload_prefilter', function ( $file ) {
    if ( ! is_array( $file ) && ! is_string( $file ) ) {
        return $file;
    }

    if ( ! is_array( $file ) ) {
        $file = [
            'name' => $file,
        ];
    }

    $search   = [ '/[^a-zA-Z0-9 \.\&\/_-]+/', '/[ \.\&\/-]+/' ];
    $replace  = [ '', '-' ];
    $path     = pathinfo( $file['name'] );
    $filename = preg_replace( '/.' . $path['extension'] . '$/', '', $file['name'] );
    $filename = html_entity_decode( $filename, ENT_QUOTES, 'UTF-8' );
    $filename = remove_accents( $filename );
    $filename = preg_replace( $search, $replace, $filename );
    $filename = trim( $filename, '-' );
    $filename = strtolower( $filename );

    $file['name'] = $filename . '.' . $path['extension'];

    return $file;
} );