posix_getrlimit
(PHP 4, PHP 5, PHP 7)
posix_getrlimit — Return info about system resource limits
Description
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.
Return Values
Returns an associative array of elements for each limit that is defined. Each limit has a soft and a hard limit.
| 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. |
Examples
Example #1 Example use of posix_getrlimit()
<?php
$limits = posix_getrlimit();
print_r($limits);
?>
The above example will output something similar to:
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
)
English translation
You have asked to visit this site in English. For now, only the interface is translated, but not all the content yet.If you want to help me in translations, your contribution is welcome. All you need to do is register on the site, and send me a message asking me to add you to the group of translators, which will give you the opportunity to translate the pages you want. A link at the bottom of each translated page indicates that you are the translator, and has a link to your profile.
Thank you in advance.
Document created the 30/01/2003, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/php-rf-function.posix-getrlimit.html
The infobrol is a personal site whose content is my sole responsibility. The text is available under CreativeCommons license (BY-NC-SA). More info on the terms of use and the author.
References
These references and links indicate documents consulted during the writing of this page, or which may provide additional information, but the authors of these sources can not be held responsible for the content of this page.
The author This site is solely responsible for the way in which the various concepts, and the freedoms that are taken with the reference works, are presented here. Remember that you must cross multiple source information to reduce the risk of errors.
