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<?php function generate($array) { // 1 loop over data foreach ($array as $v) { yield 'key' . $v => 'value' . $v; } } function generator($array) { // 1 parent loop over data return iterator_to_array(generate($array)); } function construct($array) { // 1 loop over data $result = []; foreach ($array as $v) { $result['key' . $v] = 'value' . $v; } return $result; } function substrReplaceCombine($array) { return array_combine( substr_replace($array, 'key', 0, 0), substr_replace($array, 'value', 0, 0) ); } function mapCombine($array) { // 3 loops over data return array_combine( array_map( fn($v) => 'key' . $v, $array ), array_map( fn($v) => 'value' . $v, $array ), ); } function mapFlatten($array) { // 3 loops over data return array_merge( ...array_map( fn($v) => ['key' . $v => 'value' . $v], $array ), ); } function mapUncolumn($array) { // 2 loops over data return array_column( array_map( fn($v) => ['key' . $v, 'value' . $v], $array ), 1, 0 ); } function walk($array) { // 1 loop over data $result = []; array_walk( $array, function($v) use (&$result) { $result['key' . $v] = 'value' . $v; } ); return $result; } function reduce($array) { // 1 loop over data return array_reduce( $array, function($result, $v) { $result['key' . $v] = 'value' . $v; return $result; }, new ArrayObject() ); } function returnTime(callable $function, int $repeat = 20) { $tests = []; for ($i = 0; $i < $repeat; ++$i) { $startTime = microtime(true); $function(); $endTime = microtime(true); $tests[] = $endTime - $startTime; } // Representing the average return 1000 * array_sum($tests) / $repeat; } $array = range(0, 5000); foreach (['generator', 'construct', 'substrReplaceCombine', 'mapCombine', 'mapFlatten', 'mapUncolumn', 'walk', 'reduce'] as $test) { echo "Duration of $test: ", returnTime(fn() => $test($array)) . PHP_EOL; }
Output for 8.3.4
Duration of generator: 1.5499591827393 Duration of construct: 0.95775127410889 Duration of substrReplaceCombine: 0.71814060211182 Duration of mapCombine: 1.0146498680115 Duration of mapFlatten: 1.1467099189758 Duration of mapUncolumn: 1.1523962020874 Duration of walk: 1.2235164642334 Duration of reduce: 0.93705654144287
Output for 8.3.3
Duration of generator: 0.96194744110107 Duration of construct: 0.69766044616699 Duration of substrReplaceCombine: 0.70594549179077 Duration of mapCombine: 0.93833208084106 Duration of mapFlatten: 1.1225581169128 Duration of mapUncolumn: 1.1418104171753 Duration of walk: 1.1436939239502 Duration of reduce: 0.91025829315186
Output for 8.3.2
Duration of generator: 1.3946413993835 Duration of construct: 1.0244011878967 Duration of substrReplaceCombine: 1.0473847389221 Duration of mapCombine: 1.0363936424255 Duration of mapFlatten: 1.2630581855774 Duration of mapUncolumn: 1.147997379303 Duration of walk: 1.1513590812683 Duration of reduce: 0.9039044380188
Output for 8.3.1
Duration of generator: 0.92755556106567 Duration of construct: 0.73134899139404 Duration of substrReplaceCombine: 0.72489976882935 Duration of mapCombine: 0.96828937530518 Duration of mapFlatten: 1.154363155365 Duration of mapUncolumn: 1.1662364006042 Duration of walk: 1.1417508125305 Duration of reduce: 0.95266103744507
Output for 8.3.0
Duration of generator: 1.226019859314 Duration of construct: 0.82247257232666 Duration of substrReplaceCombine: 0.74851512908936 Duration of mapCombine: 0.93635320663452 Duration of mapFlatten: 1.2899875640869 Duration of mapUncolumn: 1.580286026001 Duration of walk: 1.6725182533264 Duration of reduce: 0.91180801391602
Output for 8.2.17
Duration of generator: 0.92439651489258 Duration of construct: 0.71184635162354 Duration of substrReplaceCombine: 0.71855783462524 Duration of mapCombine: 0.93580484390259 Duration of mapFlatten: 1.1694192886353 Duration of mapUncolumn: 1.174259185791 Duration of walk: 1.1564612388611 Duration of reduce: 0.93944072723389
Output for 8.2.16
Duration of generator: 1.3454079627991 Duration of construct: 0.89340209960938 Duration of substrReplaceCombine: 1.0189414024353 Duration of mapCombine: 1.0493636131287 Duration of mapFlatten: 1.1245012283325 Duration of mapUncolumn: 1.2155771255493 Duration of walk: 1.143753528595 Duration of reduce: 0.91471672058105
Output for 8.2.15
Duration of generator: 0.93175172805786 Duration of construct: 0.73344707489014 Duration of substrReplaceCombine: 0.72066783905029 Duration of mapCombine: 0.94231367111206 Duration of mapFlatten: 1.1351466178894 Duration of mapUncolumn: 1.1558771133423 Duration of walk: 1.1279106140137 Duration of reduce: 0.9020209312439
Output for 8.2.14
Duration of generator: 0.89817047119141 Duration of construct: 0.72411298751831 Duration of substrReplaceCombine: 0.82428455352783 Duration of mapCombine: 0.9118914604187 Duration of mapFlatten: 1.0695099830627 Duration of mapUncolumn: 1.1472344398499 Duration of walk: 1.2015581130981 Duration of reduce: 1.1887907981873
Output for 8.2.13
Duration of generator: 1.4305114746094 Duration of construct: 0.96582174301147 Duration of substrReplaceCombine: 0.82576274871826 Duration of mapCombine: 0.92051029205322 Duration of mapFlatten: 1.12224817276 Duration of mapUncolumn: 1.1491775512695 Duration of walk: 1.1486649513245 Duration of reduce: 0.92899799346924
Output for 8.2.12
Duration of generator: 1.5624403953552 Duration of construct: 1.1485457420349 Duration of substrReplaceCombine: 0.78475475311279 Duration of mapCombine: 1.1798739433289 Duration of mapFlatten: 1.3672351837158 Duration of mapUncolumn: 1.2043118476868 Duration of walk: 1.1397123336792 Duration of reduce: 0.90866088867188
Output for 8.2.11
Duration of generator: 0.91569423675537 Duration of construct: 0.68594217300415 Duration of substrReplaceCombine: 0.71315765380859 Duration of mapCombine: 0.91758966445923 Duration of mapFlatten: 1.1558055877686 Duration of mapUncolumn: 1.1644721031189 Duration of walk: 1.1474967002869 Duration of reduce: 0.89738368988037
Output for 8.2.10
Duration of generator: 0.88220834732056 Duration of construct: 0.70115327835083 Duration of substrReplaceCombine: 0.6961464881897 Duration of mapCombine: 0.90640783309937 Duration of mapFlatten: 1.068902015686 Duration of mapUncolumn: 1.329505443573 Duration of walk: 1.1785745620728 Duration of reduce: 0.90498924255371
Output for 8.2.9
Duration of generator: 1.3818979263306 Duration of construct: 1.0461568832397 Duration of substrReplaceCombine: 0.89821815490723 Duration of mapCombine: 0.93351602554321 Duration of mapFlatten: 1.1377453804016 Duration of mapUncolumn: 1.1400699615479 Duration of walk: 1.1986613273621 Duration of reduce: 0.91146230697632
Output for 8.2.8
Duration of generator: 1.3126373291016 Duration of construct: 0.84508657455444 Duration of substrReplaceCombine: 0.73291063308716 Duration of mapCombine: 0.94764232635498 Duration of mapFlatten: 1.0749459266663 Duration of mapUncolumn: 1.1313557624817 Duration of walk: 1.1215806007385 Duration of reduce: 0.93079805374146
Output for 8.2.7
Duration of generator: 0.9040355682373 Duration of construct: 0.73819160461426 Duration of substrReplaceCombine: 0.8232593536377 Duration of mapCombine: 0.93410015106201 Duration of mapFlatten: 1.1369585990906 Duration of mapUncolumn: 1.1510491371155 Duration of walk: 1.1460542678833 Duration of reduce: 0.92594623565674
Output for 8.2.6
Duration of generator: 1.4312386512756 Duration of construct: 0.82746744155884 Duration of substrReplaceCombine: 0.75894594192505 Duration of mapCombine: 0.96359252929688 Duration of mapFlatten: 1.1905550956726 Duration of mapUncolumn: 1.1914253234863 Duration of walk: 1.2083649635315 Duration of reduce: 0.94165802001953
Output for 8.2.5
Duration of generator: 1.4050483703613 Duration of construct: 0.88344812393188 Duration of substrReplaceCombine: 0.76955556869507 Duration of mapCombine: 0.93158483505249 Duration of mapFlatten: 1.1734962463379 Duration of mapUncolumn: 1.2050986289978 Duration of walk: 1.2300729751587 Duration of reduce: 0.9742259979248
Output for 8.2.4
Duration of generator: 1.3767123222351 Duration of construct: 0.7825493812561 Duration of substrReplaceCombine: 0.72578191757202 Duration of mapCombine: 0.92489719390869 Duration of mapFlatten: 1.0555744171143 Duration of mapUncolumn: 1.3262867927551 Duration of walk: 1.1175274848938 Duration of reduce: 0.94219446182251
Output for 8.2.3
Duration of generator: 1.402759552002 Duration of construct: 1.0612487792969 Duration of substrReplaceCombine: 0.96509456634521 Duration of mapCombine: 0.93139410018921 Duration of mapFlatten: 1.1244893074036 Duration of mapUncolumn: 1.1457562446594 Duration of walk: 1.1483073234558 Duration of reduce: 0.91234445571899
Output for 8.2.2
Duration of generator: 1.4149785041809 Duration of construct: 1.0002374649048 Duration of substrReplaceCombine: 0.74664354324341 Duration of mapCombine: 0.91766119003296 Duration of mapFlatten: 1.1302947998047 Duration of mapUncolumn: 1.1410355567932 Duration of walk: 1.1372089385986 Duration of reduce: 0.90110301971436
Output for 8.2.1
Duration of generator: 1.3910531997681 Duration of construct: 0.77478885650635 Duration of substrReplaceCombine: 0.73364973068237 Duration of mapCombine: 0.92804431915283 Duration of mapFlatten: 1.1280536651611 Duration of mapUncolumn: 1.1258006095886 Duration of walk: 1.1385560035706 Duration of reduce: 0.91314315795898
Output for 8.2.0
Duration of generator: 1.3852477073669 Duration of construct: 0.80809593200684 Duration of substrReplaceCombine: 0.73089599609375 Duration of mapCombine: 0.9236216545105 Duration of mapFlatten: 1.1174559593201 Duration of mapUncolumn: 1.1399030685425 Duration of walk: 1.1190056800842 Duration of reduce: 0.91589689254761
Output for 8.1.27
Duration of generator: 0.9255051612854 Duration of construct: 0.69683790206909 Duration of substrReplaceCombine: 0.72489976882935 Duration of mapCombine: 0.93226432800293 Duration of mapFlatten: 1.1110424995422 Duration of mapUncolumn: 1.0453343391418 Duration of walk: 1.1965155601501 Duration of reduce: 0.91483592987061
Output for 8.1.26
Duration of generator: 0.93401670455933 Duration of construct: 0.67689418792725 Duration of substrReplaceCombine: 0.72934627532959 Duration of mapCombine: 0.93625783920288 Duration of mapFlatten: 1.1168241500854 Duration of mapUncolumn: 1.091730594635 Duration of walk: 1.2242674827576 Duration of reduce: 0.9213924407959
Output for 8.1.25
Duration of generator: 1.3998031616211 Duration of construct: 1.0444283485413 Duration of substrReplaceCombine: 1.0587811470032 Duration of mapCombine: 0.93065500259399 Duration of mapFlatten: 1.1209607124329 Duration of mapUncolumn: 1.0691523551941 Duration of walk: 1.2272834777832 Duration of reduce: 0.9552001953125
Output for 8.1.24
Duration of generator: 1.4724016189575 Duration of construct: 0.9419322013855 Duration of substrReplaceCombine: 1.0170459747314 Duration of mapCombine: 0.97370147705078 Duration of mapFlatten: 1.1422753334045 Duration of mapUncolumn: 1.0545253753662 Duration of walk: 1.2363910675049 Duration of reduce: 1.0592341423035
Output for 8.1.23
Duration of generator: 1.2417912483215 Duration of construct: 0.75812339782715 Duration of substrReplaceCombine: 0.72861909866333 Duration of mapCombine: 0.9498119354248 Duration of mapFlatten: 1.1391162872314 Duration of mapUncolumn: 1.0549306869507 Duration of walk: 1.2475490570068 Duration of reduce: 0.9096622467041
Output for 8.1.22
Duration of generator: 1.404869556427 Duration of construct: 0.9853720664978 Duration of substrReplaceCombine: 0.9657621383667 Duration of mapCombine: 0.92488527297974 Duration of mapFlatten: 1.1190056800842 Duration of mapUncolumn: 1.0529041290283 Duration of walk: 1.186990737915 Duration of reduce: 0.90817213058472
Output for 8.1.21
Duration of generator: 1.3387560844421 Duration of construct: 0.86175203323364 Duration of substrReplaceCombine: 0.79379081726074 Duration of mapCombine: 0.92744827270508 Duration of mapFlatten: 1.144003868103 Duration of mapUncolumn: 1.0452747344971 Duration of walk: 1.2885093688965 Duration of reduce: 0.91408491134644
Output for 8.1.20
Duration of generator: 1.0306596755981 Duration of construct: 0.6865382194519 Duration of substrReplaceCombine: 0.75429677963257 Duration of mapCombine: 1.02379322052 Duration of mapFlatten: 1.1708974838257 Duration of mapUncolumn: 1.0465621948242 Duration of walk: 1.2685060501099 Duration of reduce: 1.0263919830322
Output for 8.1.19
Duration of generator: 1.464056968689 Duration of construct: 0.99946260452271 Duration of substrReplaceCombine: 0.85419416427612 Duration of mapCombine: 0.90543031692505 Duration of mapFlatten: 1.1236429214478 Duration of mapUncolumn: 1.0374784469604 Duration of walk: 1.315176486969 Duration of reduce: 0.88807344436646
Output for 8.1.18
Duration of generator: 1.3582706451416 Duration of construct: 1.0942697525024 Duration of substrReplaceCombine: 1.0071992874146 Duration of mapCombine: 0.92124938964844 Duration of mapFlatten: 1.142144203186 Duration of mapUncolumn: 1.0826468467712 Duration of walk: 1.2742519378662 Duration of reduce: 0.91699361801147
Output for 8.1.17
Duration of generator: 1.3790488243103 Duration of construct: 1.0152816772461 Duration of substrReplaceCombine: 0.9906530380249 Duration of mapCombine: 0.94585418701172 Duration of mapFlatten: 1.126766204834 Duration of mapUncolumn: 1.0542750358582 Duration of walk: 1.2392640113831 Duration of reduce: 0.90271234512329
Output for 8.1.16
Duration of generator: 0.94640254974365 Duration of construct: 0.69049596786499 Duration of substrReplaceCombine: 0.77846050262451 Duration of mapCombine: 0.92536211013794 Duration of mapFlatten: 1.1483192443848 Duration of mapUncolumn: 1.0562896728516 Duration of walk: 1.2464284896851 Duration of reduce: 0.91785192489624
Output for 8.1.15
Duration of generator: 0.93129873275757 Duration of construct: 0.70129632949829 Duration of substrReplaceCombine: 0.77837705612183 Duration of mapCombine: 0.92096328735352 Duration of mapFlatten: 1.1150121688843 Duration of mapUncolumn: 1.0534524917603 Duration of walk: 1.2381434440613 Duration of reduce: 0.94724893569946
Output for 8.1.14
Duration of generator: 0.98594427108765 Duration of construct: 0.85091590881348 Duration of substrReplaceCombine: 0.9465217590332 Duration of mapCombine: 1.1874914169312 Duration of mapFlatten: 1.2704014778137 Duration of mapUncolumn: 1.064658164978 Duration of walk: 1.2277603149414 Duration of reduce: 0.92462301254272
Output for 8.1.13
Duration of generator: 0.9590744972229 Duration of construct: 0.71450471878052 Duration of substrReplaceCombine: 0.80316066741943 Duration of mapCombine: 0.98570585250854 Duration of mapFlatten: 1.1082649230957 Duration of mapUncolumn: 1.0538697242737 Duration of walk: 1.2029767036438 Duration of reduce: 0.94213485717773
Output for 8.1.12
Duration of generator: 1.3391971588135 Duration of construct: 1.0002613067627 Duration of substrReplaceCombine: 0.95134973526001 Duration of mapCombine: 0.94561576843262 Duration of mapFlatten: 1.0971546173096 Duration of mapUncolumn: 1.0396003723145 Duration of walk: 1.199209690094 Duration of reduce: 0.89024305343628
Output for 8.1.11
Duration of generator: 0.9350061416626 Duration of construct: 0.6969690322876 Duration of substrReplaceCombine: 0.79275369644165 Duration of mapCombine: 0.91913938522339 Duration of mapFlatten: 1.1144042015076 Duration of mapUncolumn: 1.0889768600464 Duration of walk: 1.2739062309265 Duration of reduce: 0.93510150909424
Output for 8.1.10
Duration of generator: 1.2305736541748 Duration of construct: 0.66454410552979 Duration of substrReplaceCombine: 0.72129964828491 Duration of mapCombine: 0.91276168823242 Duration of mapFlatten: 1.1073470115662 Duration of mapUncolumn: 1.0531187057495 Duration of walk: 1.192581653595 Duration of reduce: 0.89510679244995
Output for 8.1.9
Duration of generator: 0.94388723373413 Duration of construct: 0.68581104278564 Duration of substrReplaceCombine: 0.74989795684814 Duration of mapCombine: 0.9203314781189 Duration of mapFlatten: 1.2719988822937 Duration of mapUncolumn: 1.0482549667358 Duration of walk: 1.2439846992493 Duration of reduce: 0.91159343719482
Output for 8.1.8
Duration of generator: 0.93021392822266 Duration of construct: 0.70195198059082 Duration of substrReplaceCombine: 0.75225830078125 Duration of mapCombine: 0.92869997024536 Duration of mapFlatten: 1.1101841926575 Duration of mapUncolumn: 1.0512948036194 Duration of walk: 1.3063192367554 Duration of reduce: 0.91102123260498
Output for 8.1.7
Duration of generator: 0.91785192489624 Duration of construct: 0.66784620285034 Duration of substrReplaceCombine: 0.72845220565796 Duration of mapCombine: 0.92945098876953 Duration of mapFlatten: 1.0966420173645 Duration of mapUncolumn: 1.0385513305664 Duration of walk: 1.2090682983398 Duration of reduce: 0.89774131774902
Output for 8.1.6
Duration of generator: 1.3713240623474 Duration of construct: 0.81979036331177 Duration of substrReplaceCombine: 0.76029300689697 Duration of mapCombine: 0.91885328292847 Duration of mapFlatten: 1.049542427063 Duration of mapUncolumn: 1.0616898536682 Duration of walk: 1.2496590614319 Duration of reduce: 0.93110799789429
Output for 8.1.5
Duration of generator: 1.3149976730347 Duration of construct: 0.77345371246338 Duration of substrReplaceCombine: 0.72675943374634 Duration of mapCombine: 0.90293884277344 Duration of mapFlatten: 1.0977268218994 Duration of mapUncolumn: 1.0275483131409 Duration of walk: 1.1809110641479 Duration of reduce: 0.87541341781616
Output for 8.1.4
Duration of generator: 1.4174699783325 Duration of construct: 1.0191440582275 Duration of substrReplaceCombine: 0.94265937805176 Duration of mapCombine: 0.91291666030884 Duration of mapFlatten: 1.1033535003662 Duration of mapUncolumn: 1.0370373725891 Duration of walk: 1.1945366859436 Duration of reduce: 0.89964866638184
Output for 8.1.3
Duration of generator: 1.3556003570557 Duration of construct: 0.79081058502197 Duration of substrReplaceCombine: 0.81864595413208 Duration of mapCombine: 0.97150802612305 Duration of mapFlatten: 1.1502385139465 Duration of mapUncolumn: 1.0642051696777 Duration of walk: 1.1898398399353 Duration of reduce: 0.94974040985107
Output for 8.1.2
Duration of generator: 0.90286731719971 Duration of construct: 0.69940090179443 Duration of substrReplaceCombine: 0.7555365562439 Duration of mapCombine: 0.96681118011475 Duration of mapFlatten: 1.1539101600647 Duration of mapUncolumn: 1.1146545410156 Duration of walk: 1.1998295783997 Duration of reduce: 0.88731050491333
Output for 8.1.1
Duration of generator: 1.4237999916077 Duration of construct: 1.0079026222229 Duration of substrReplaceCombine: 0.9992241859436 Duration of mapCombine: 0.93671083450317 Duration of mapFlatten: 1.0942697525024 Duration of mapUncolumn: 1.0305523872375 Duration of walk: 1.1849403381348 Duration of reduce: 0.88592767715454
Output for 8.1.0
Duration of generator: 0.90764760971069 Duration of construct: 0.70011615753174 Duration of substrReplaceCombine: 0.75391530990601 Duration of mapCombine: 0.91140270233154 Duration of mapFlatten: 1.1004090309143 Duration of mapUncolumn: 1.0550141334534 Duration of walk: 1.1963129043579 Duration of reduce: 0.88633298873901
preferences:
77.24 ms | 490 KiB | 5 Q