What piece of code would you use to obtain an array of response headers for...

Zend 200-530 Question Answer

What piece of code would you use to obtain an array of response headers for a given URL, indexed by their respective names?

get_headers($url);

get_header($url);

stream_context_get_headers($url);

get_headers($url, 1);

get_headers($url, ASSOC_HEADERS);

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