Asynchronous, non-blocking I/O, event based PHP library for writing custom TCP/IP client and server implementations. From it's previous versions, library inherits a full blown stable support for XMPP protocol stack. In v3.0, support for HTTP protocol stack was also added.
There are environments where pcntl_signal is disabled in php.ini but the pcntl extension itself is loaded. In these cases it is not enough to check that the pcntl extension is loaded. We must also check that pcntl_signal exists.
There are environments where
pcntl_signalis disabled inphp.inibut thepcntlextension itself is loaded. In these cases it is not enough to check that thepcntlextension is loaded. We must also check thatpcntl_signalexists.For example,
pcntl_signalis disabled by default on Debian and Ubuntu: https://www.apt-browse.org/browse/debian/jessie/main/amd64/php5-common/5.6.20+dfsg-0+deb8u1/file/usr/share/php5/php.ini-production