PHP basename() Function: Description, Parameters, Return Value, and Examples

The basename() function in PHP returns the base name of a given path, optionally removing a specified suffix.

Parameters

path : The full path to a file; both forward (/) and backslashes (\) are accepted on Windows, while only forward slashes are used on other systems.

suffix (optional): If the filename ends with this suffix, it will be stripped from the result.

Return value

Returns the base name component of $path as a string.

Example

<?php
echo "1) " . basename("/etc/sudoers.d", ".d") . PHP_EOL;
echo "2) " . basename("/etc/passwd") . PHP_EOL;
echo "3) " . basename("/etc/") . PHP_EOL;
echo "4) " . basename(".") . PHP_EOL;
echo "5) " . basename("/") . PHP_EOL;
?>

Output:

1) sudoers
2) passwd
3) etc
4) .
5)