Swoole\Event::cycle
Declaration
<?php
Swoole\Event::cycle(callable $callback, bool $before = false)\:\ bool
Parameters
- callback
callback function to executed every event loop cycle
- before
before or after the event loop
Return
- success
If success, it returns TRUE, meaning the event listener was successfully added
- false
Otherwise it returns FALSE, meaning there was an issue registering the event
Description
Register a callback function which is executed every loop, you can set if this function or callable executes before or after the event loop round:
bool $before:
- false: Execute the function after the event loop round
- true: Execute the function before the start of the event loop round
You can have two cycle functions operating when setting the before and after parameters
Example
<?php
Swoole\Timer::tick(2000, function ($id) {
var_dump($id);
});
Swoole\Event::cycle(function () {
echo "hello [1]\n";
Swoole\Event::cycle(function () {
echo "hello [2]\n";
// Clear all cycle functions
Swoole\Event::cycle(null);
});
});
