pcntl_signal_get_handler

(PHP 7 >= 7.1.0, PHP 8)

pcntl_signal_get_handlerGet the current handler for specified signal

Description

pcntl_signal_get_handler(int $signal): callable|int

The pcntl_signal_get_handler() function will get the current handler for the specified signal.

Parameters

signal

The signal number.

Return Values

This function may return an integer value that refers to SIG_DFL or SIG_IGN. If a custom handler has been set, that callable is returned.

Changelog

Version Description
7.1.0 pcntl_signal_get_handler() has been added.

Examples

Example #1 pcntl_signal_get_handler() example

<?php
var_dump
(pcntl_signal_get_handler(SIGUSR1)); // Outputs: int(0)

function pcntl_test($signo) {}
pcntl_signal(SIGUSR1'pcntl_test');
var_dump(pcntl_signal_get_handler(SIGUSR1)); // Outputs: string(10) "pcntl_test"

pcntl_signal(SIGUSR1SIG_DFL);
var_dump(pcntl_signal_get_handler(SIGUSR1)); // Outputs: int(0)

pcntl_signal(SIGUSR1SIG_IGN);
var_dump(pcntl_signal_get_handler(SIGUSR1)); // Outputs: int(1)
?>

See Also

Here you can write a comment


Please enter at least 10 characters.
Loading... Please wait.
* Pflichtangabe
There are no comments available yet.

PHP cURL Tutorial: Using cURL to Make HTTP Requests

cURL is a powerful PHP extension that allows you to communicate with different servers using various protocols, including HTTP, HTTPS, FTP, and more. ...

TheMax

Autor : TheMax
Category: PHP-Tutorials

Midjourney Tutorial - Instructions for beginners

There is an informative video about Midjourney, the tool for creating digital images using artificial intelligence, entitled "Midjourney tutorial in German - instructions for beginners" ...

Mike94

Autor : Mike94
Category: KI Tutorials

Basics of views in MySQL

Views in a MySQL database offer the option of creating a virtual table based on the result of an SQL query. This virtual table can be queried like a normal table without changing the underlying data. ...

admin

Autor : admin
Category: mySQL-Tutorials

Publish a tutorial

Share your knowledge with other developers worldwide

Share your knowledge with other developers worldwide

You are a professional in your field and want to share your knowledge, then sign up now and share it with our PHP community

learn more

Publish a tutorial