What are the limitations of PHP when it comes to multicore CPU usage?

PHP has limitations when it comes to utilizing multiple cores efficiently due to its single-threaded nature. To overcome this limitation, you can use parallel processing libraries or extensions like pthreads or pcntl to enable multi-threading in PHP. By utilizing these tools, you can distribute tasks across multiple cores and improve performance.

// Example code using pthreads extension for multi-threading in PHP
class MyThread extends Thread {
    public function run() {
        // Task to be executed in parallel
    }
}

$thread = new MyThread();
$thread->start();
$thread->join();