What is the behaviour of imap_sort when $search_criteria are null?

Asked Feb 19 '19 at 07:56

Active Feb 19 '19 at 08:17

Viewed 39 times

The documentation of imap_sort can take $search_criteria as an argument, but by default, $search_criteria is set to NULL.

imap_sort ( resource $imap_stream , int $criteria , int $reverse [, int $options = 0 [, string $search_criteria = NULL [, string $charset = NULL ]]] ) : array

My question is:
what is the behaviour of imap_sort when $search_criteria is null?

The documentation refers to imap_search() but that doesn't help at all, because there isn't a null argument there.

I need to know this because my version of phpimap (https://github.com/barbushin/php-imap) doesn't take a search criteria argument and I need ALL mails, thus this would normally be 'ALL' as a search criterium.

So is NULL equal to 'ALL'?

edited Feb 19 '19 at 08:17

akshaypjoshi

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asked Feb 19 '19 at 07:56

L.A. Rabida

Have you tried using it? If you need **all** mails, why not omit any search parameter? – Nico Haase Feb 19 '19 at 08:27
Because that is not documented. I need to be certain. – L.A. Rabida Feb 19 '19 at 08:29

What is the behaviour of imap_sort when $search_criteria are null?

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