(PHP 8 >= 8.3.0)
posix_fpathconf — Returns the value of a configurable limit
Returns the value of a configurable limit from name
for file_descriptor.
file_descriptorThe file descriptor, which is expected to be either a file resource or an int . An int will be assumed to be a file descriptor that can be passed directly to the underlying system call.
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 resource is invalid.
Example #1 posix_fpathconf() example
This example will get the max path name's length in bytes for the current dir.
<?php
$fd = fopen(__DIR__, "r");
echo posix_fpathconf($fd, POSIX_PC_PATH_MAX);
?>The above example will output:
4096