Briefing Zend Knowledge

Which of the following code snippets will you use to destroy a log if the variable $logger contains

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Which of the following code snippets will you use to destroy a log if the variable $logger contains
the log record?

A.
<php
remove($logger);

B.
<php
$logger=null;

C.
<php
delete($logger);

D.
<php
$logger->null;

Explanation: