socket_strerror
(PHP 4 >= 4.1.0, PHP 5)
socket_strerror — Return a string describing a socket error
说明
string socket_strerror ( int $errno )socket_strerror() takes as its errno parameter a socket error code as returned by socket_last_error() and returns the corresponding explanatory text.
Note:
Although the error messages generated by the socket extension are in English, the system messages retrieved with this function will appear depending on the current locale (LC_MESSAGES).
参数
- errno
-
A valid socket error number, likely produced by socket_last_error().
返回值
Returns the error message associated with the errno parameter.
范例
Example #1 socket_strerror() example
The expected output from the above example (assuming the script
is not run with root privileges):
<?php
if (false == ($socket = @socket_create(AF_INET, SOCK_STREAM, SOL_TCP))) {
echo "socket_create() failed: reason: " . socket_strerror(socket_last_error()) . "
";
}
if (false == (@socket_bind($socket, '127.0.0.1', 80))) {
echo "socket_bind() failed: reason: " . socket_strerror(socket_last_error($socket)) . "
";
}
?>
socket_bind() failed: reason: Permission denied
参见
- socket_accept() - Accepts a connection on a socket
- socket_bind() - Binds a name to a socket
- socket_connect() - Initiates a connection on a socket
- socket_listen() - Listens for a connection on a socket
- socket_create() - Create a socket (endpoint for communication)
