posix_getrlimit

Description
Syntax
Examples
Links

Description

The posix_getrlimit of POSIX for PHP returns information about system resource limits.

Syntax

posix_getrlimit(
    ?int $resource = null
): array|false

Parameters

resource

If null all resource limits will be fetched. Otherwise, the only limits of the resource type provided will be returned.

Return

Returns an associative array of elements for each soft and hard limit that is defined on success. Returns false on failure.

Name	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.
data	The maximum size of the data segment for the process, in bytes.
stack	The maximum size of the process stack, in bytes.
totalmem	The maximum size of the memory of the process, 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

1 · void

<?

$return = posix_getrlimit();

print_r($return);

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
)

2 · resource · POSIX_RLIMIT_CORE

<?

$resource = POSIX_RLIMIT_CORE;

$return = posix_getrlimit($resource);

print_r($return);

Array
(
    [0] => 0
    [1] => unlimited
)

3 · resource · POSIX_RLIMIT_DATA

<?

$resource = POSIX_RLIMIT_DATA;

$return = posix_getrlimit($resource);

print_r($return);

Array
(
    [0] => unlimited
    [1] => unlimited
)

4 · resource · POSIX_RLIMIT_STACK

<?

$resource = POSIX_RLIMIT_STACK;

$return = posix_getrlimit($resource);

print_r($return);

Array
(
    [0] => 8388608
    [1] => unlimited
)

5 · resource · POSIX_RLIMIT_AS

<?

$resource = POSIX_RLIMIT_AS;

$return = posix_getrlimit($resource);

print_r($return);

Array
(
    [0] => unlimited
    [1] => unlimited
)

6 · resource · POSIX_RLIMIT_RSS

<?

$resource = POSIX_RLIMIT_RSS;

$return = posix_getrlimit($resource);

print_r($return);

Array
(
    [0] => unlimited
    [1] => unlimited
)

7 · resource · POSIX_RLIMIT_NPROC

<?

$resource = POSIX_RLIMIT_NPROC;

$return = posix_getrlimit($resource);

print_r($return);

Array
(
    [0] => unlimited
    [1] => unlimited
)

8 · resource · POSIX_RLIMIT_MEMLOCK

<?

$resource = POSIX_RLIMIT_MEMLOCK;

$return = posix_getrlimit($resource);

print_r($return);

Array
(
    [0] => unlimited
    [1] => unlimited
)

9 · resource · POSIX_RLIMIT_CPU

<?

$resource = POSIX_RLIMIT_CPU;

$return = posix_getrlimit($resource);

print_r($return);

Array
(
    [0] => unlimited
    [1] => unlimited
)

10 · resource · POSIX_RLIMIT_FSIZE

<?

$resource = POSIX_RLIMIT_FSIZE;

$return = posix_getrlimit($resource);

print_r($return);

Array
(
    [0] => unlimited
    [1] => unlimited
)

11 · resource · POSIX_RLIMIT_NOFILE

<?

$resource = POSIX_RLIMIT_NOFILE;

$return = posix_getrlimit($resource);

print_r($return);

Array
(
    [0] => 1024
    [1] => 1024
)