File System Functions

basename
dirname
expand_path
file_append
file_exists
file_get_contents
file_mtime
file_put_contents
cwd_get
ls
mkdir
path_join
cwd_set
shell_escape
shell_exec
shell_spawn
job_status
job_result
job_await
job_cancel
file_unlink
zip_create
zip_list
zip_read
zip_extract
gz_compress
gz_uncompress
server_start_http
server_stop
file_open
file_read
file_pread
file_write
file_pwrite
file_seek
file_tell
file_close
file_stat
dir_list
file_rename
file_copy
file_truncate
dir_remove
file_temp
file_chmod
file_symlink
file_fsync
path_is_within
path_real
process_start_directory
request_perf
runtime_safe_key