PHP fsockopen, Pfsockopen functions are disabled by the host vendor, Fsockopen function _php Tutorial

PHP fsockopen, Pfsockopen functions are disabled by the host vendor, Fsockopen function

Perhaps Fsockopen, Pfsockopen function There is a security risk, but we have no research, this is the IDC business, whatever the reason, anyway, they are to disable the two functions, then how to solve, the following is a small compilation method, Hope to use the students have a certain reference.

Here's how to fix it:

First, using stream_socket_client () instead

The server also disables Fsockopen, Pfsockopen, and other functions instead, such as stream_socket_client (). Note: The parameters for Stream_socket_client () and Fsockopen () are different.

Specific operation:

Search for the string in the program Fsockopen (replace with Stream_socket_client (, then, the port parameter "80" in the original Fsockopen function is deleted and added to the $host.

Examples are as follows:

Before modification:

Copy the Code code as follows: $fp = Fsockopen ($host, $errno, $errstr, 30);

Or

Copy the code as follows: $fp = Fsockopen ($host, $port, $errno, $errstr, $connection _timeout);

After modification:

Copy the code as follows: $fp = Stream_socket_client ("tcp://". $host. " 80″, $errno, $errstr, 30);

Or

Copy the code as follows: $fp = Stream_socket_client ("tcp://". $host. ":". $port, $errno, $errstr, $connection _timeout);

Second, rewrite the law

What if the PHP version is lower than 5.0,fsockopen is disabled and no stream_socket_client ()? Write a function to implement Fsockopen function, reference code:
Copy the Code code as follows:
function B_fsockopen ($host, $port, & $errno, & $errstr, $timeout)
{
$ip = gethostbyname ($host);
$s = socket_create (af_inet, sock_stream, 0);

if (Socket_set_nonblock ($s))
{
$r = @socket_connect ($s, $ip, $port);

if ($r | | socket_last_error () = = einprogress)
{
$errno = einprogress; return $s;
}
}

$errno = Socket_last_error ($s);

$errstr = Socket_strerror ($errno);

Socket_close ($s);

return false;

}

Specific operation:

1. First locate the code snippet that uses the Fsockopen function, add the above code to its upper end, and search for the string fsockopen in the snippet (replace with B_fsockopen (.

2. Because the Fsockopen function returns a file pointer so it can be manipulated by the file function, but this b_fsockopen function does not return the file pointer, you need to continue to modify the code snippet: with Socket_read (replace Fread (, with Socket_write ( Replace the fwrite (, with Socket_close (replace the fclose (.

In the above method, I use Stream_socket_client () instead of solving the problem, the second method did not try.

Win's host disabled the function Fsockopen and Pfsockopen, can not invoke the API, how to solve?

I'll give you the address.

How does the WordPress program installed on the virtual host change the Fsockopen pfsockopen function to disable?

Modify Fsockopen Pfsockopen is required to modify the PHP configuration file php.ini, the file is a PHP program files, placed in the PHP directory, not a wordpress file.

WordPress is the use of PHP parsing of a web-based program, he relies on the function must be supported by PHP, to change the configuration of PHP, please go to the directory where PHP found php.ini to modify.

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