A thread of execution is the smallest sequence of programmed instructions that can be managed independently by a scheduler, which is typically a part of the operating system. In the PHP, you can divide and conquer your planned process efficiently by Thread.
The below is the simple example of thread:
<?php
class workerThread extends Thread {
public function __construct($i){
$this->i=$i;
}
public function run(){
while(true){
echo $this->i;
sleep(1);
}
}
}
for($i=0;$i<50;$i++){
$workers[$i]=new workerThread($i);
$workers[$i]->start();
}
?>
To understand of the concept for Thread, below example will be super helpful:
<?php
class STD extends Thread{
public function put(){
$this->synchronized(function(){
for($i=0;$i<7;$i++){
printf("%d\n",$i);
$this->notify();
if($i < 6)
$this->wait();
else
exit();
sleep(1);
}
});
}
public function flush(){
$this->synchronized(function(){
for($i=0;$i<7;$i++){
flush();
$this->notify();
if($i < 6)
$this->wait();
else
exit();
}
});
}
}
class A extends Thread{
private $std;
public function __construct($std){
$this->std = $std;
}
public function run(){
$this->std->put();
}
}
class B extends Thread{
private $std;
public function __construct($std){
$this->std = $std;
}
public function run(){
$this->std->flush();
}
}
ob_end_clean();
echo str_repeat(" ", 1024);
$std = new STD();
$ta = new A($std);
$tb = new B($std);
$ta->start();
$tb->start();