What is the method for obtaining a thread number in PHP?

To get the thread number in PHP, you can use the function getmypid(). This function returns the process ID of the current process, which can be considered as the thread number in most cases. It can be used to uniquely identify a running thread in PHP. Here is an example code:

$threadID = getmypid();
echo "当前线程号：".$threadID;

With this piece of code, you can retrieve the thread ID of the current thread and print it out.