Thread
PHP Manual

Thread::synchronized

(PECL pthreads >= 0.40)

Thread::synchronizedSynchronization

Descrição

final public mixed Thread::synchronized ( Closure $block [, mixed $... ] )

Executes the block while retaining the synchronization lock for the current context.

Parâmetros

block

The block of code to execute

...

Variable length list of arguments to use as function arguments to the block

Valor Retornado

The return value from the block

Exemplos

Exemplo #1 Synchronizing

<?php
class My extends Thread {
    public function 
run() {
        
$this->synchronized(function($thread){
            
$thread->wait();
        }, 
$this);
    }
}
$my = new My();
$my->start();
$my->synchronized(function($thread){
    
$thread->notify();
}, 
$my);
var_dump($my->join());
?>

O exemplo acima irá imprimir:

bool(true)


Thread
PHP Manual