PHP Manual: Returns the value of a configurable limit

intfalse posix_pathconf(string $path, int $name)

Warning

This function is currently not documented; only its argument list is available.

Returns the value of a configurable limit from name for a path

path: The name of the file whose limit you want to get.
name: The name of the configurable limit, one of the following. POSIX_PC_LINK_MAX, POSIX_PC_MAX_CANON, POSIX_PC_MAX_INPUT, POSIX_PC_NAME_MAX, POSIX_PC_PATH_MAX, POSIX_PC_PIPE_BUF, POSIX_PC_CHOWN_RESTRICTED, POSIX_PC_NO_TRUNC, POSIX_PC_ALLOC_SIZE_MIN, POSIX_PC_SYMLINK_MAX.

Returns the configurable limit or false.

Throws a ValueError when path is empty.

Example #1 posix_pathconf example

This example will get the max path name's length in bytes for the tmp dir.

<?php
echo posix_pathconf(sys_get_temp_dir(), POSIX_PC_PATH_MAX);
?>

The above example will output:

posix_pathconf