note 124555 added to class.splfixedarray

Memory usage for arrays of 1132766 ints (data derived from some 1kx1k img): Regular: 76453160B (67.5B/int) SplFixed: 18898744B (16.7B/int) In my application, SFA uses 75% less RAM, which is a life-saver. Speed comparison: Regular: 449ms SplFixed (resized before every element): 791ms SplFixed (fully preallocated): 392ms SplFixed (preall-d to 1M and then resized): 547ms Pros and cons: + much more efficient RAM-wise + a bit faster if max size is known ~ a bit slower if max size is only approximated - much slower if max size is not known - cannot be used with most array functions To sum up: SplFixedArray is a very good choice for storing giant amount of data, though only as long as you at least roughly know the size and can work without array functions. ---- Server IP: 45.112.84.4 Probable Submitter: 185.85.3.168 (proxied: 83.4.195.47) ---- Manual Page -- http://php.net/manual/en/class.splfixedarray.php Edit -- https://master.php.net/note/edit/124555 Del: integrated -- https://master.php.net/note/delete/124555/integrated Del: useless -- https://master.php.net/note/delete/124555/useless Del: bad code -- https://master.php.net/note/delete/124555/bad+code Del: spam -- https://master.php.net/note/delete/124555/spam Del: non-english -- https://master.php.net/note/delete/124555/non-english Del: in docs -- https://master.php.net/note/delete/124555/in+docs Del: other reasons-- https://master.php.net/note/delete/124555 Reject -- https://master.php.net/note/reject/124555 Search -- https://master.php.net/manage/user-notes.php