note 94179 added to class.splfixedarray

Though, object creation overhead means this method is slower for small arrays. for example, if the other posters benchmark script is changed to a more realistic: <?php $elements = 20; for($size = 1000; $size < 50000000; $size *= 2) { echo PHP_EOL . "Testing size: $size" . PHP_EOL; for($s = microtime(true), $i = 0; $i < $size; $i++) { for($j=0,$container=array();$j < $elements; $j++ ) { $container[$i] = NULL; } } echo "Array(): " . (microtime(true) - $s) . PHP_EOL; for($s = microtime(true), $i = 0; $i < $size; $i++) { for( $j=0,$container=new SplFixedArray($elements);$j<$elements;$j++) { $container[$i] = NULL; } } echo "SplArray(): " . (microtime(true) - $s) . PHP_EOL; } we get: Testing size: 1000 Array(): 0.0030221939086914 SplArray(): 0.0041899681091309 Testing size: 2000 Array(): 0.0060598850250244 SplArray(): 0.0083701610565186 Testing size: 4000 Array(): 0.012003898620605 SplArray(): 0.016681909561157 Testing size: 8000 Array(): 0.024173021316528 SplArray(): 0.033347129821777 Testing size: 16000 Array(): 0.048118829727173 SplArray(): 0.066897869110107 Testing size: 32000 Array(): 0.096546173095703 SplArray(): 0.13370203971863 Testing size: 64000 Array(): 0.1932430267334 SplArray(): 0.26755595207214 Testing size: 128000 Array(): 0.38473010063171 SplArray(): 0.5374698638916 Testing size: 256000 Array(): 0.77228307723999 SplArray(): 1.0708079338074 Testing size: 512000 Array(): 1.5438990592957 SplArray(): 2.1406710147858 Testing size: 1024000 Array(): 3.0910761356354 SplArray(): 4.3108429908752 Testing size: 2048000 Array(): 6.1561989784241 SplArray(): 8.612802028656 ...... ---- Server IP: 69.147.83.197 Probable Submitter: 119.75.43.62 ---- Manual Page -- http://www.php.net/manual/en/class.splfixedarray.php Edit -- https://master.php.net/note/edit/94179 Del: integrated -- https://master.php.net/note/delete/94179/integrated Del: useless -- https://master.php.net/note/delete/94179/useless Del: bad code -- https://master.php.net/note/delete/94179/bad+code Del: spam -- https://master.php.net/note/delete/94179/spam Del: non-english -- https://master.php.net/note/delete/94179/non-english Del: in docs -- https://master.php.net/note/delete/94179/in+docs Del: other reasons-- https://master.php.net/note/delete/94179 Reject -- https://master.php.net/note/reject/94179 Search -- https://master.php.net/manage/user-notes.php