posix_getrlimit

(PHP 4, PHP 5, PHP 7, PHP 8)

posix_getrlimit — Return info about system resource limits

说明

posix_getrlimit(): array|false

posix_getrlimit() returns an array of information about the current resource's soft and hard limits.

Each resource has an associated soft and hard limit. The soft limit is the value that the kernel enforces for the corresponding resource. The hard limit acts as a ceiling for the soft limit. An unprivileged process may only set its soft limit to a value from 0 to the hard limit, and irreversibly lower its hard limit.

参数

此函数没有参数。

返回值

Returns an associative array of elements for each limit that is defined. Each limit has a soft and a hard limit.

**List of possible limits returned**
Limit name	Limit description
core	The maximum size of the core file. When 0, not core files are created. When core files are larger than this size, they will be truncated at this size.
totalmem	The maximum size of the memory of the process, in bytes.
virtualmem	The maximum size of the virtual memory for the process, in bytes.
data	The maximum size of the data segment for the process, in bytes.
stack	The maximum size of the process stack, in bytes.
rss	The maximum number of virtual pages resident in RAM
maxproc	The maximum number of processes that can be created for the real user ID of the calling process.
memlock	The maximum number of bytes of memory that may be locked into RAM.
cpu	The amount of time the process is allowed to use the CPU.
filesize	The maximum size of the data segment for the process, in bytes.
openfiles	One more than the maximum number of open file descriptors.

The function returns false on failure.

范例

示例 #1 Example use of posix_getrlimit()


<?php

$limits = posix_getrlimit();

print_r($limits);
?>

以上例程的输出类似于：

Array
(
    [soft core] => 0
    [hard core] => unlimited
    [soft data] => unlimited
    [hard data] => unlimited
    [soft stack] => 8388608
    [hard stack] => unlimited
    [soft totalmem] => unlimited
    [hard totalmem] => unlimited
    [soft rss] => unlimited
    [hard rss] => unlimited
    [soft maxproc] => unlimited
    [hard maxproc] => unlimited
    [soft memlock] => unlimited
    [hard memlock] => unlimited
    [soft cpu] => unlimited
    [hard cpu] => unlimited
    [soft filesize] => unlimited
    [hard filesize] => unlimited
    [soft openfiles] => 1024
    [hard openfiles] => 1024
)

参见

man page GETRLIMIT(2)
posix_setrlimit() - Set system resource limits

add a note

User Contributed Notes 1 note

down

petert at tebault dot org ¶

21 years ago


The array returned (on a RH6.2 box) is:

     soft core = 0

     hard core = unlimited

     soft data = unlimited

     hard data = unlimited

     soft stack = 8388608

     hard stack = unlimited

     soft totalmem = unlimited

     hard totalmem = unlimited

     soft rss = unlimited

     hard rss = unlimited

     soft maxproc = 2048

     hard maxproc = 2048

     soft memlock = unlimited

     hard memlock = unlimited

     soft cpu = unlimited

     hard cpu = unlimited

     soft filesize = unlimited

     hard filesize = unlimited

     soft openfiles = 1024

     hard openfiles = 1024

add a note

官方地址：https://www.php.net/manual/en/function.posix-getrlimit.php

有任何技术问题请点击这里网站运营推广招聘

IT PHP 编程语言 Linux 开发编程科技 Elasticsearch HTML/CSS/XML 网络 JAVA NoSQL 数据库面试 C/C++ Golang Git 算法操作系统正则表达式 Redis 互联网 MySql JavaScript 运维软件国际架构设计 Mac OS TCP/IP Excel Vim Windows Socket Oracle VR MongoDB Python 运营 MemCache 商业硬件电子娱乐设计 nginx 摄影游戏 WordPress HTTP 团建数码电器

php7 安装fileinfo扩展 preg_split — 通过一个正则表达式分隔字符串 php位值,解决 PHP 中 usort 在值相同时改变原始位置的问题 [PHP] inet_pton/inet_ntop IP地址转换函数 array_multisort() 多字段排序 PHPMailer设置utf8 PHPMailer字符集CharSet ADORecordSet对象 adodb手册 PHP 8.1 [鸟哥]PHP_INT_MIN 和 -9223372036854775808 opcache预加载 Composer的Packagist资源 mysql面试题 PHP7添加redis扩展 [鸟哥]PHP FFI详解 - 一种全新的PHP扩展方式 PHP获取指定函数定义在哪个文件中及行号 PHP mkdir()写出来的权限与mode值不符合 adodb连接mysql多个数据库的问题 composer基本用法利用PHP SOAP实现WEB SERVICE

略微加速

PHP官方手册 - 互联网笔记

posix_getrlimit

说明

参数

返回值

范例

参见

User Contributed Notes 1 note