PHP pathinfo() Function

The pathinfo() function returns an array that contains information about a path.If the options parameter is not passed, an associative array containing the following elements is returned: dirname, basename, extension (if any), and filename.

mixed pathinfo ( string $path [, int $options = PATHINFO_DIRNAME | PATHINFO_BASENAME | PATHINFO_EXTENSION | PATHINFO_FILENAME ] )

pathinfo() returns information about path: either an associative array or a string, depending on options.

The following array elements are returned : -

Example -

The above example will output : -

/www/htdocs/inc
lib.inc.php
php
lib.inc
Example #2 pathinfo() example showing difference between null and no extension

The above example will output something similar to : -

string(0) ""

Notice: Undefined index: extension in test.php on line 6
NULL

Example -

The above example will output something similar to : -

Array
(
    [dirname] => /some/path
    [basename] => .test
    [extension] => test
    [filename] => 
)