proc_close

proc_close

(PHP 4 >= 4.3.0, PHP 5)

proc_closeClose a process opened by proc_open() and return the exit code of that process

说明

int proc_close ( resource $process )

proc_close() is similar to pclose() except that it only works on processes opened by proc_open(). proc_close() waits for the process to terminate, and returns its exit code. If you have open pipes to that process, you should fclose() them prior to calling this function in order to avoid a deadlock - the child process may not be able to exit while the pipes are open.

参数

process

The proc_open() resource that will be closed.

返回值

Returns the termination status of the process that was run. In case of an error then -1 is returned.

注释

Note: Unix Only:

proc_close() is internally implemented using the waitpid(3) system call. To obtain the real exit status code the pcntl_wexitstatus() function should be used.


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