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Changes between Initial Version and Version 1 of Ticket #17019, comment 22

initial	v1
4	4	> Given that add_filter() and apply_filters() are called so many times throughout a request, I'd be very surprized if this "strategic application" would yield any speed improvements.
5	5	>
6		Yes, the is_array() check in add_filter was a mistake so I've removed that in the revised patch. apply_filters() is not affected, as the context check is in apply_filters_ref_array() - used mainly by WP_Query to the tune of 26 per typical query by my count.
	6	Yes, the is_array() check in add_filter() was a mistake so I've removed that in the revised patch. apply_filters() is not affected, as the context check is in apply_filters_ref_array() - used mainly by WP_Query to the tune of 26 per typical query by my count.
7	7
8	8	Assuming a new optional arg to add_filter would not be appreciated either, I'm instead proposing a new function: