Php/docs/function.is-file

• PHP Manual
• Filesystem Functions
• Tells whether the filename is a regular file

is_file

(PHP 4, PHP 5, PHP 7)

is_file — Tells whether the filename is a regular file

Description

is_file ( string $filename ) : bool

Tells whether the given file is a regular file.

Parameters

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() example

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

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() 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() family of functionality.

See Also

• is_dir() - Tells whether the filename is a directory
• is_link() - Tells whether the filename is a symbolic link