PHP Manual
Socket 函数
Sets nonblocking mode for file descriptor fd

socket_set_nonblock

(PHP 4 >= 4.1.0, PHP 5, PHP 7)

socket_set_nonblock — Sets nonblocking mode for file descriptor fd

说明

socket_set_nonblock ( resource $socket ) : bool

The socket_set_nonblock() function sets the O_NONBLOCK flag on the socket specified by the socket parameter.

When an operation (e.g. receive, send, connect, accept, ...) is performed on a non-blocking socket, the script will not pause its execution until it receives a signal or it can perform the operation. Rather, if the operation would result in a block, the called function will fail.

参数

socket: A valid socket resource created with socket_create() or socket_accept().

返回值

成功时返回 TRUE，或者在失败时返回 FALSE。

范例

Example #1 socket_set_nonblock() example

 <?php
$socket = socket_create_listen(1223);
socket_set_nonblock($socket);

socket_accept($socket);
?>

This example creates a listening socket on all interfaces on port 1223 and sets the socket to O_NONBLOCK mode. socket_accept() will immediately fail unless there is a pending connection exactly at this moment.

参见

socket_set_block() - Sets blocking mode on a socket resource
socket_set_option() - Sets socket options for the socket
stream_set_blocking() - 为资源流设置阻塞或者阻塞模式

php eventbufferevent connect buffer event s file descriptor to given address or unix socket php eventutil returns numeric file descriptor of a socket or stream php direct io 函数 closes the file descriptor given by fd php direct io 函数 gets stat information about the file descriptor fd php direct io 函数 truncates file descriptor fd to offset bytes php eio 函数 duplicate a file descriptor php eio 函数 read from a file descriptor at given offset php libevent 函数 change a buffered event file descriptor php fdf 函数 sets version number for a fdf file php gnupg 函数 sets the mode for error reporting php gnupg 函数 sets the mode for signing php informix 函数 sets the current file or seek position php posix 函数 determine if a file descriptor is an interactive terminal php ps 函数 sets overprint mode php paradox 函数 sets the file where blobs are read from php socket 函数 sets blocking mode on a socket resource php socket 函数 sets nonblocking mode for file descriptor fd php socket 函数 sets socket options for the socket php ssh2 函数 changes file mode php stream 函数 sets write file buffering on the given stream