Bulgaria PHP Conference 2019

zookeeper_dispatch

(PECL zookeeper >= 0.4.0)

zookeeper_dispatchCalls callbacks for pending operations

Description

zookeeper_dispatch ( void ) : void

The zookeeper_dispatch() function calls the callbacks passwd by operations like Zookeeper::get() or Zookeeper::exists().

Caution

Since version 0.4.0, this function must be called manually to achieve asynchronous operations. If you want that to be done automatically, you also can declare ticks at the beginning of your program.

After PHP 7.1, you can ignore this function. This extension uses EG(vm_interrupt) to implement async dispatch.

Errors/Exceptions

This method emits PHP warning when callback could not be invoked.

Examples

Example #1 zookeeper_dispatch() example #1

Dispatch callbacks manually.

<?php
$client 
= new Zookeeper();
$client->connect('localhost:2181');
$client->get('/zookeeper', function() {
    echo 
"Callback was called".PHP_EOL;
});
while(
true) {
    
sleep(1);
    
zookeeper_dispatch();
}
?>

Example #2 zookeeper_dispatch() example #2

Declare ticks.

<?php
declare(ticks=1);

$client = new Zookeeper();
$client->connect('localhost:2181');
$client->get('/zookeeper', function() {
    echo 
"Callback was called".PHP_EOL;
});
while(
true) {
    
sleep(1);
}
?>

See Also

add a note add a note

User Contributed Notes

There are no user contributed notes for this page.
To Top