is_file(3) [php man page]

IS_FILE(3)								 1								IS_FILE(3)

is_file - Tells whether the filename is a regular file

SYNOPSIS

       bool is_file (string  $filename)

DESCRIPTION

	Tells whether the given file is a regular file.

PARAMETERS

	      o $filename
		- Path to the file.

RETURN VALUES

	Returns TRUE if the filename exists and is a regular file, FALSE otherwise.

       Note

	       Because PHP's integer type is signed and many platforms use 32bit integers, some filesystem functions may return unexpected results
	      for files which are larger than 2GB.

EXAMPLES

       Example #1

	      is_file(3) example

	      <?php
	      var_dump(is_file('a_file.txt')) . "
";
	      var_dump(is_file('/usr/bin/')) . "
";
	      ?>

	      The above example will output:

	      bool(true)
	      bool(false)

ERRORS
/EXCEPTIONS
	Upon failure, an E_WARNING is emitted.

NOTES

       Note

	      The results of this function are cached. See clearstatcache(3) for more details.

       Tip

	      As of PHP 5.0.0, this function can also be used with some URL wrappers. Refer to "Supported Protocols  and  Wrappers"  to  determine
	      which wrappers support stat(3) family of functionality.

SEE ALSO

       is_dir(3), is_link(3).

PHP Documentation Group 														IS_FILE(3)

IS_DIR(3)								 1								 IS_DIR(3)

is_dir - Tells whether the filename is a directory

SYNOPSIS

       bool is_dir (string  $filename)

DESCRIPTION

	Tells whether the given filename is a directory.

PARAMETERS

	      o $filename
		-  Path  to the file. If $filename is a relative filename, it will be checked relative to the current working directory. If $file-
		name is a symbolic or hard link then the link will be resolved and checked. If you have enabled safe mode, or open_basedir further
		restrictions may apply.

RETURN VALUES

	Returns TRUE if the filename exists and is a directory, FALSE otherwise.

EXAMPLES

       Example #1

	      is_dir(3) example

	      <?php
	      var_dump(is_dir('a_file.txt'));
	      var_dump(is_dir('bogus_dir/abc'));

	      var_dump(is_dir('..')); //one dir up
	      ?>

	      The above example will output:

	      bool(false)
	      bool(false)
	      bool(true)

ERRORS
/EXCEPTIONS
	Upon failure, an E_WARNING is emitted.

NOTES

       Note

	      The results of this function are cached. See clearstatcache(3) for more details.

       Tip

	      As  of  PHP  5.0.0,  this function can also be used with some URL wrappers. Refer to "Supported Protocols and Wrappers" to determine
	      which wrappers support stat(3) family of functionality.

SEE ALSO

       chdir(3), dir(3), opendir(3), is_file(3), is_link(3).

PHP Documentation Group 														 IS_DIR(3)