Predefined Constants

The following list of signals are supported by the Process Control functions. Please see your systems signal(7) man page for details of the default behavior of these signals.

WNOHANG (integer)

WUNTRACED (integer)

SIG_IGN (integer)

SIG_DFL (integer)

SIG_ERR (integer)

SIGHUP (integer)

SIGINT (integer)

SIGQUIT (integer)

SIGILL (integer)

SIGTRAP (integer)

SIGABRT (integer)

SIGIOT (integer)

SIGBUS (integer)

SIGFPE (integer)

SIGKILL (integer)

SIGUSR1 (integer)

SIGSEGV (integer)

SIGUSR2 (integer)

SIGPIPE (integer)

SIGALRM (integer)

SIGTERM (integer)

SIGSTKFLT (integer)

SIGCLD (integer)

SIGCHLD (integer)

SIGCONT (integer)

SIGSTOP (integer)

SIGTSTP (integer)

SIGTTIN (integer)

SIGTTOU (integer)

SIGURG (integer)

SIGXCPU (integer)

SIGXFSZ (integer)

SIGVTALRM (integer)

SIGPROF (integer)

SIGWINCH (integer)

SIGPOLL (integer)

SIGIO (integer)

SIGPWR (integer)

SIGSYS (integer)

SIGBABY (integer)

SIG_BLOCK (integer)

Available since PHP 5.3.0.

SIG_UNBLOCK (integer)

Available since PHP 5.3.0.

SIG_SETMASK (integer)

Available since PHP 5.3.0.

SI_USER (integer)

Available since PHP 5.3.0.

SI_NOINFO (integer)

Available since PHP 5.3.0.

SI_KERNEL (integer)

Available since PHP 5.3.0.

SI_QUEUE (integer)

Available since PHP 5.3.0.

SI_TIMER (integer)

Available since PHP 5.3.0.

SI_MSGGQ (integer)

Available since PHP 5.3.0.

SI_ASYNCIO (integer)

Available since PHP 5.3.0.

SI_SIGIO (integer)

Available since PHP 5.3.0.

SI_TKILL (integer)

Available since PHP 5.3.0.

CLD_EXITED (integer)

Available since PHP 5.3.0.

CLD_KILLED (integer)

Available since PHP 5.3.0.

CLD_DUMPED (integer)

Available since PHP 5.3.0.

CLD_TRAPPED (integer)

Available since PHP 5.3.0.

CLD_STOPPED (integer)

Available since PHP 5.3.0.

CLD_CONTINUED (integer)

Available since PHP 5.3.0.

TRAP_BRKPT (integer)

Available since PHP 5.3.0.

TRAP_TRACE (integer)

Available since PHP 5.3.0.

POLL_IN (integer)

Available since PHP 5.3.0.

POLL_OUT (integer)

Available since PHP 5.3.0.

POLL_MSG (integer)

Available since PHP 5.3.0.

POLL_ERR (integer)

Available since PHP 5.3.0.

POLL_PRI (integer)

Available since PHP 5.3.0.

POLL_HUP (integer)

Available since PHP 5.3.0.

ILL_ILLOPC (integer)

Available since PHP 5.3.0.

ILL_ILLOPN (integer)

Available since PHP 5.3.0.

ILL_ILLADR (integer)

Available since PHP 5.3.0.

ILL_ILLTRP (integer)

Available since PHP 5.3.0.

ILL_PRVOPC (integer)

Available since PHP 5.3.0.

ILL_PRVREG (integer)

Available since PHP 5.3.0.

ILL_COPROC (integer)

Available since PHP 5.3.0.

ILL_BADSTK (integer)

Available since PHP 5.3.0.

FPE_INTDIV (integer)

Available since PHP 5.3.0.

FPE_INTOVF (integer)

Available since PHP 5.3.0.

FPE_FLTDIV (integer)

Available since PHP 5.3.0.

FPE_FLTOVF (integer)

Available since PHP 5.3.0.

FPE_FLTUND (integer)

Available since PHP 5.3.0.

FPE_FLTRES (integer)

Available since PHP 5.3.0.

FPE_FLTINV (integer)

Available since PHP 5.3.0.

FPE_FLTSUB (integer)

Available since PHP 5.3.0.

SEGV_MAPERR (integer)

Available since PHP 5.3.0.

SEGV_ACCERR (integer)

Available since PHP 5.3.0.

BUS_ADRALN (integer)

Available since PHP 5.3.0.

BUS_ADRERR (integer)

Available since PHP 5.3.0.

BUS_OBJERR (integer)

Available since PHP 5.3.0.