> >>> Greetings everyone, I was wondering where I could find information on the > >>> status and possibilities of threads being included in PHP. Or if you are > >>> knowledge-able on the status of threads, if it is a planned addition or > >>> not > >>> and the reasons as such. I understand PHP is not thread safe, that the > >>> core > >>> is thread safe but many required extensions are not. Is there a road map > >>> to > >>> this? > >> Being thread safe and being able to use threads are two different things. > >> > >> PHP 5 *is* thread safe, but a great many extensions are not. > >> > >> PHP is never likely to support threads. Remember that the majority of > >> PHP usage is in the context of web requests. There are a great many > >> issues the crop up when you consider adding threading to an Apache > >> module, and I'm sure the same is true of most of the other SAPIs. > >> > >> Hope that helps. > > > > Hmm. I was looking into proc_open and pcntl_fork as a way to have a > > "Manager application" handle "Worker applications" (or worker threads -- so > > to speak). > > > > Actually as a quick way to develop in PHP instead of C++. Some of the > > worker processes are actually C++ and some are PHP. > > > > Can anyone expound on these alternatives to threads? I'm assuming that > > neither "blocks" execution of the spawned process. Is it merely the > > difference between processes and threads whereas threads have less > > overhead? This is for a command line PHP-GTK app (the Manager Application) > > and I'm not too concerned about running out of resources. > > > > I noticed the proc_* methods allow for getting the status and maybe the > > manager will kill off some workers if they do not behave as desired. > > proc_* will give you complete control over spawned/child processes at the OS > level. > overhead is not the only difference, but for your practical purposes child > process spawning > will cover your bases.
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