they? how would I get the main thread to exit without the A thread exited while 3 threads were running warning?

You can't exit the main thread without exiting all threads. If you need the behavior where the children continue on after the parent dies, you need "fork and exec", not threads.

If you just want to make sure all threads finish , at the end of your main program put something like 

 while (threads->list()) {
        $_->join() foreach threads->list(threads::joinable);
        sleep(1); 
    }

[download]
that should wait for all threads to finish. Remeber, a thread cannot be joined unless it returns or hits the end of it's code block. In an emergency, you can use the fact that calling "exit" from any thread, will kill all threads.
I'm not really a human, but I play one on earth CandyGram for Mongo

In reply to Re^3: panic: regfree data code 'ð' during global destruction. error when joining threads by zentara
in thread panic: regfree data code 'ð' during global destruction. error when joining threads by somekindafreak

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