posix_pathconf
(PHP 8 >= 8.3.0)
posix_pathconf — Returns the value of a configurable limit
说明
本函数还未编写文档，仅有参数列表。
Returns the value of a configurable limit from name for a file
参数
-
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_CANONPOSIX_PC_MAX_INPUT,POSIX_PC_NAME_MAXPOSIX_PC_PATH_MAX,POSIX_PC_PIPE_BUFPOSIX_PC_CHOWN_RESTRICTED,POSIX_PC_NO_TRUNCPOSIX_PC_ALLOC_SIZE_MIN,POSIX_PC_SYMLINK_MAX
返回值
Returns the configurable limit or false.
错误／异常
Throws a ValueError
when path is empty.
示例
示例 #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);
?>以上示例会输出：
4096
注释
参见
- posix_fpathconf() - Returns the value of a configurable limit
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