class-wp-filesystem-ftpext.php

--- /var/www/xxx/wp-admin/includes/class-wp-filesystem-ftpext.php.bak       2024-04-22 12:52:45.137057835 +0200
+++ /var/www/xxx/wp-admin/includes/class-wp-filesystem-ftpext.php   2024-10-17 16:31:32.583056600 +0200
@@ -135,6 +135,7 @@
         *                      or if the file couldn't be retrieved.
         */
        public function get_contents( $file ) {
+               if ( ! $this->link ) { return false; } // PHP 8.1 fix
                $tempfile   = wp_tempnam( $file );
                $temphandle = fopen( $tempfile, 'w+' );

@@ -227,6 +228,7 @@
         * @return string|false The current working directory on success, false on failure.
         */
        public function cwd() {
+               if ( ! $this->link ) { return false; } // PHP 8.1 fix
                $cwd = ftp_pwd( $this->link );

                if ( $cwd ) {
@@ -425,6 +427,7 @@
         * @return bool Whether $path exists or not.
         */
        public function exists( $path ) {
+               if ( ! $this->link ) { return false; } // PHP 8.1 fix
                /*
                 * Check for empty path. If ftp_nlist() receives an empty path,
                 * it checks the current working directory and may return true.
@@ -465,6 +468,7 @@
         * @return bool Whether $path is a directory.
         */
        public function is_dir( $path ) {
+               if ( ! $this->link ) { return false; } // PHP 8.1 fix
                $cwd    = $this->cwd();
                $result = @ftp_chdir( $this->link, trailingslashit( $path ) );

@@ -754,6 +758,7 @@
         * }
         */
        public function dirlist( $path = '.', $include_hidden = true, $recursive = false ) {
+               if ( ! $this->link ) { return false; } // PHP 8.1 fix
                if ( $this->is_file( $path ) ) {
                        $limit_file = basename( $path );
                        $path       = dirname( $path ) . '/';