# fam_monitor_file

(PHP 5 < 5.1.0)

fam_monitor_file — Monitor a regular file for changes

### 说明

fam_monitor_file ( resource `$fam` , string `$filename` ) : resource

Requests monitoring for a single file. A FAM event will be generated whenever the file status changes (i.e. the result of function stat() on that file).

The possible event codes are described in detail in the constants part of this section.

### 参数

`fam`

  A resource representing a connection to the FAM service returned by fam_open()

`filename`

  Path to the monitored file

### 返回值

Returns a monitoring resource or `FALSE` on errors.

### 参见

- fam_monitor_directory() - Monitor a directory for changes
- fam_monitor_collection() - Monitor a collection of files in a directory for changes
- fam_cancel_monitor() - Terminate monitoring
- fam_suspend_monitor() - Temporarily suspend monitoring
- fam_resume_monitor() - Resume suspended monitoring