Programming PHP

eaddir
string readdir(int handle)
Returns the name of the next file in the directory referenced by handle; the order in which
files in a directory are returned by calls to readdir( ) is undefined. If there are no more files
in the directory to return, readdir( ) returns false.
readfile
int readfile(string path[, bool include])
Reads the file at path and outputs the contents. If include is specified and is true, the
include path is searched for the file. If path begins with http://, an HTTP connection is
opened and the file is read from it. If path begins with ftp://, an FTP connection is opened
and the file is read from it; the remote server must support passive FTP.
This function returns the number of bytes output.
readlink
string readlink(string path)
Returns the path contained in the symbolic link file path. Ifpath does not exist or is not a
symbolic link file, or if any other error occurs, the function returns false.
realpath
string realpath(string path)
Expands all symbolic links, resolves references to /./ and /../, removes extra / characters
in path, and returns the result.
register_shutdown_function
void register_shutdown_function(string function)
Registers a shutdown function. The function is called when the page completes processing.
You can register multiple shutdown functions, and they will be called in the order in which
they were registered. If a shutdown function contains an exit command, functions registered
after that function will not be called.
Because the shutdown function is called after the page has completely processed, you
cannot add data to the page with print( ), echo( ), or similar functions or commands.
436 | Appendix A: Function Reference
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