07-31-2013
..., and apply the same ${dir} to the output file: > "${dir}/abc.txt"
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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)