03-Apr-2023
.
Admin
Hi guys,
Today i will explained how to use php Network functions. This example is so easy to use in php.
This functions is provided to the default php language. So you can easily to use in your php code. Today i will explaind checkdnsrr(),closelog(),dns_check_record(),dns_get_mx(),dns_get_record(),fsockopen() to explainded.
So let's start to the example.
checkdnsrr() Function
The checkdnsrr() function checks DNS records for type corresponding to host.
<?php
$domain="w3schools.com";
if(checkdnsrr($domain,"MX")) {
echo "Passed";
} else {
echo "Failed";
}
?>
Output
Passed
closelog() Function
The closelog() functionoselog() Function
The closelog() function closes the connection of system logger
<?php
function _log($text) {
openlog("phperrors", LOG_PID | LOG_PERROR);
syslog(LOG_ERR, $text);
closelog();
}
?>
dns_check_record() Function
The dns_check_record() function is an alias of the checkdnsrr() function.
<?php
$domain="w3schools.com";
if(dns_check_record($domain,"MX")) {
echo "Passed";
} else {
echo "Failed";
}
?>
Output
Passed
dns_get_mx() Function
The dns_get_mx() function is an alias of the checkdnsrr() function.
<?php
$domain="w3schools.com";
if(dns_get_mx($domain,$mx_details)){
foreach($mx_details as $key=>$value){
echo "$key => $value <br>";
}
}
?>
Output
0 => alt2.aspmx.l.google.com
1 => alt1.aspmx.l.google.com
2 => feedback-smtp.eu-west-1.amazonses.com
3 => alt4.aspmx.l.google.com
4 => alt3.aspmx.l.google.com
5 => aspmx.l.google.com
dns_get_record() Function
The dns_get_record() function gets the DNS resource records associated with the specified hostname.
<?php
print_r(dns_get_record("w3schools.com", DNS_MX));
?>
Output
Array
(
[0] => Array
(
[host] => w3schools.com
[class] => IN
[ttl] => 32
[type] => MX
[pri] => 5
[target] => alt2.aspmx.l.google.com
)
[1] => Array
(
[host] => w3schools.com
[class] => IN
[ttl] => 32
[type] => MX
[pri] => 5
[target] => alt1.aspmx.l.google.com
)
[2] => Array
(
[host] => w3schools.com
[class] => IN
[ttl] => 32
[type] => MX
[pri] => 10
[target] => feedback-smtp.eu-west-1.amazonses.com
)
[3] => Array
(
[host] => w3schools.com
[class] => IN
[ttl] => 32
[type] => MX
[pri] => 10
[target] => alt4.aspmx.l.google.com
)
[4] => Array
(
[host] => w3schools.com
[class] => IN
[ttl] => 32
[type] => MX
[pri] => 10
[target] => alt3.aspmx.l.google.com
)
[5] => Array
(
[host] => w3schools.com
[class] => IN
[ttl] => 32
[type] => MX
[pri] => 1
[target] => aspmx.l.google.com
)
)
fsockopen() Function
The fsockopen() function opens an Internet or Unix domain socket connection.
<?php
$fp = fsockopen("www.w3schools.com", 80, $errno, $errstr, 20);
if (!$fp) {
echo "$errstr ($errno)<br>";
} else {
$out = "GET / HTTP/1.1\r\n";
$out .= "Host: www.w3schools.com\r\n";
$out .= "Connection: Close\r\n\r\n";
fwrite($fp, $out);
while (!feof($fp)) {
echo fgets($fp, 128);
}
fclose($fp);
}
?>
Output
Cache-Control: public
Content-Security-Policy: frame-ancestors 'self' https://mycourses.w3schools.com;
Content-Type: text/html; charset=UTF-8
Date: Thu, 15 Jul 2021 09:33:36 GMT
Location: https://www.w3schools.com/
Server: Microsoft-IIS/10.0
X-Content-Security-Policy: frame-ancestors 'self' https://mycourses.w3schools.com;
X-Powered-By: ASP.NET
Content-Length: 149
Connection: close
Object Moved
This document may be found here
Now you can check your own.
I hope it can help you...
#PHP 8
#PHP