socket_clear_error

(PHP 4 >= 4.2.0, PHP 5, PHP 7)

socket_clear_errorClears the error on the socket or the last error code

설명

void socket_clear_error ([ resource $socket ] )

This function clears the error code on the given socket or the global last socket error if no socket is specified.

This function allows explicitly resetting the error code value either of a socket or of the extension global last error code. This may be useful to detect within a part of the application if an error occurred or not.

인수

socket

A valid socket resource created with socket_create().

반환값

값을 반환하지 않습니다.

참고

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User Contributed Notes 2 notes

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0
ludvig dot ericson at gmail dot com
14 years ago
If you want to clear your error in a small amount of code, do a similar hack as to what most people do in SQL query checking,
<?php
$result
= mysql_query($sql) or die(/* Whatever code */);
?>

It could look like this:
<?php
if (!($socket = socket_create(/* Whatever code */)) {
    echo (
"Failed to create socket: " . socket_strerror(socket_last_error()) and socket_clear_error());
}
?>

As you can see, I use "and" here instead of "or" since the first part will always return true, thus if you use or PHP's lazy boolean checking will not execute the last part, which it will with an and if the first part is true.
up
-1
raphael at engenhosweb dot com dot br
8 years ago
You can do this too, with anonymous function:
<?php
$socket
= @socket_create(AF_INET, SOCK_STREAM, SOL_TCP) or function() {
           
$errstr = socket_strerror(socket_last_error());
            echo (
"Failed to create socket: " . $errstr);
           
socket_clear_error();
        };
?>
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