PHP | dns_get_mx() Function
The dns_get_mx() function is an inbuilt function in PHP which returns MX records for the specified internet host name. This function is an alias of the getmxrr() function.
Syntax:
bool dns_get_mx( $host, $mxhosts, $weight );
Parameter: This function accepts three parameters as mentioned above and described below:
- $host: It is required parameter. It specifies the host name whose MX records to be found.
- $mxhosts: It is required parameter. An array specifies MX host names found.
- $weight: It is optional parameter. An array filled with weight information gathered.
Return Value: This function returns TRUE if any record(s) found, otherwise returns FALSE.
Note: This function is available for PHP 5.0.0 and newer version.
Below programs illustrate the dns_get_mx() function in PHP:
Program 1:
<?php
$domain = "geeksforgeeks.org" ;
if (dns_get_mx( $domain , $mx_details )) {
foreach ( $mx_details as $key => $value ) {
echo "$key => $value <br>" ;
}
}
?>
|
Output:
0 => alt3.aspmx.l.google.com
1 => alt4.aspmx.l.google.com
2 => aspmx.l.google.com
3 => alt2.aspmx.l.google.com
4 => alt1.aspmx.l.google.com
Program 2:
<?php
$domain = "yahoo.com" ;
if (dns_get_mx( $domain , $mx_details )) {
foreach ( $mx_details as $key => $value ) {
echo "$key => $value <br>" ;
}
}
?>
|
Output:
0 => mta5.am0.yahoodns.net
1 => mta6.am0.yahoodns.net
2 => mta7.am0.yahoodns.net
Reference: https://www.php.net/manual/en/function.dns-get-mx.php
Last Updated :
03 Sep, 2019
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