is are there any worng parameter s supplied to dnsgetrecord get..., PHP Advanced Concepts, PHP

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Question:Is/are there any worng parameter(s) supplied to dns_get_record() to get calling as shows in the following code fragment?
 
<?php
    
    $result=dns_get_record("example.com",DNS_A);
    print_r($result);

?>

A Yes 
B No

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Question:Is/are there any worng parameter(s) supplied to dns_get_record() to get calling as shows in the following code fragment? <?php $result=dns_get_record("example.com",DNS_A); print_r($result);?>

A Yes

B No

B

Question:Is/are there any worng parameter(s) supplied to dns_get_record() to get calling as shows in the following code fragment?

<?php

$result=dns_get_record("example.com",DNS_A);
print_r($result);

?>