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Filesystem Functions

basename chgrp chmod chown clearstatcache copy dirname disk_free_space disk_total_space diskfreespace fclose fdatasync feof fflush fgetc fgetcsv fgets file file_exists file_get_contents file_put_contents fileatime filectime filegroup fileinode filemtime fileowner fileperms filesize filetype flock fnmatch fopen fpassthru fputcsv fputs fread fscanf fseek fstat fsync ftell ftruncate fwrite glob is_dir is_executable is_file is_link is_readable is_uploaded_file is_writable is_writeable lchgrp lchown link linkinfo lstat mkdir move_uploaded_file parse_ini_file parse_ini_string pathinfo pclose popen readfile readlink realpath realpath_cache_get realpath_cache_size rename rewind rmdir set_file_buffer stat symlink tempnam tmpfile touch umask unlink

chmod

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Supported Versions: PHP 4, PHP 5, PHP 7, PHP 8
Changes file mode
<?php chmod(string $filename, int $permissions): bool
<?php     private function setPermissions(string $location, int $visibility): void

    {

        error_clear_last();

        if ( ! @chmod($location, $visibility)) {

            $extraMessage = error_get_last()['message'] ?? '';

            throw UnableToSetVisibility::atLocation($this->prefixer->stripPrefix($location), $extraMessage);

        }
src/Local/LocalFilesystemAdapter.php