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<?php function measure($c) { $start = hrtime(true); $c(); var_dump(hrtime(true) - $start); } const ITERS = 10000; measure(function () { $array = []; for ($i = 0; $i < ITERS; $i++) { $array[] = $i; } }); measure(function () { $array = []; for ($i = 0; $i < ITERS; $i++) { $copy = $array; $array[] = $i; } });
Output for 8.5.3
int(365190) int(91646438)
Output for 8.5.2
int(518732) int(92815474)
Output for 8.5.1
int(386372) int(88274950)
Output for 8.5.0
int(429389) int(93709463)
Output for 8.4.18
int(223396) int(79715196)
Output for 8.4.17
int(391852) int(80748645)
Output for 8.4.16
int(436478) int(87769527)
Output for 8.4.15
int(367649) int(65161191)
Output for 8.4.14
int(397691) int(80707220)
Output for 8.4.13
int(132201) int(34484048)
Output for 8.4.12
int(318729) int(49398969)
Output for 8.4.11
int(306288) int(55133525)
Output for 8.4.10
int(324298) int(51915840)
Output for 8.4.9
int(272488) int(53893905)
Output for 8.4.8
int(150969) int(39712794)
Output for 8.4.7
int(309867) int(43996521)
Output for 8.4.6
int(366977) int(43541424)
Output for 8.4.5
int(159460) int(42240836)
Output for 8.4.4
int(458296) int(56147351)
Output for 8.4.3
int(370438) int(72452227)
Output for 8.4.2
int(389947) int(48644151)
Output for 8.4.1
int(393504) int(89546356)
Output for 8.3.30
int(422588) int(83279463)
Output for 8.3.29
int(369506) int(62614127)
Output for 8.3.28
int(430619) int(79580532)
Output for 8.3.27
int(456269) int(81570086)
Output for 8.3.26
int(417976) int(51138195)
Output for 8.3.25
int(492637) int(57714396)
Output for 8.3.24
int(317159) int(49493711)
Output for 8.3.23
int(332237) int(52036690)
Output for 8.3.22
int(386638) int(49578907)
Output for 8.3.21
int(409947) int(55605078)
Output for 8.3.20
int(165049) int(37683796)
Output for 8.3.19
int(214760) int(52760780)
Output for 8.3.18
int(402377) int(51518329)
Output for 8.3.17
int(403747) int(54049384)
Output for 8.3.16
int(381666) int(58614098)
Output for 8.3.15
int(377377) int(45145217)
Output for 8.3.14
int(390726) int(67666266)
Output for 8.3.13
int(240461) int(37920731)
Output for 8.3.12
int(365352) int(72596486)
Output for 8.3.11
int(159861) int(37466622)
Output for 8.3.10
int(341555) int(62988665)
Output for 8.3.9
int(87783) int(37031260)
Output for 8.3.8
int(261761) int(72915308)
Output for 8.3.7
int(307132) int(106309725)
Output for 8.3.6
int(438821) int(75956917)
Output for 8.3.5
int(203667) int(70079771)
Output for 8.3.4
int(245169) int(98157595)
Output for 8.3.3
int(320161) int(81017386)
Output for 8.3.2
int(157918) int(69451699)
Output for 8.3.1
int(235565) int(98008422)
Output for 8.3.0
int(172219) int(88952014)
Output for 8.2.30
int(373715) int(78005424)
Output for 8.2.29
int(323157) int(44925219)
Output for 8.2.28
int(179049) int(44532651)
Output for 8.2.27
int(440817) int(63007874)
Output for 8.2.26
int(287406) int(46781986)
Output for 8.2.25
int(91938) int(37587918)
Output for 8.2.24
int(95204) int(42319231)
Output for 8.2.23
int(95695) int(55817883)
Output for 8.2.22
int(174112) int(37068951)
Output for 8.2.21
int(93971) int(55887890)
Output for 8.2.20
int(187932) int(49424898)
Output for 8.2.19
int(378531) int(90439994)
Output for 8.2.18
int(435255) int(87092024)
Output for 8.2.17
int(171758) int(69637879)
Output for 8.2.16
int(240342) int(91532652)
Output for 8.2.15
int(278720) int(89411305)
Output for 8.2.14
int(278230) int(101319932)
Output for 8.2.13
int(284048) int(80612637)
Output for 8.2.12
int(250889) int(87609911)
Output for 8.2.11
int(195585) int(70567309)
Output for 8.2.10
int(313272) int(89735284)
Output for 8.2.9
int(190056) int(69421443)
Output for 8.2.8
int(187412) int(70154657)
Output for 8.2.7
int(171058) int(69051234)
Output for 8.2.6
int(259271) int(80267186)
Output for 8.2.5
int(253382) int(97625654)
Output for 8.2.4
int(304920) int(78486704)
Output for 8.2.3
int(334253) int(103975513)
Output for 8.2.2
int(198429) int(69654735)
Output for 8.2.1
int(172320) int(80542432)
Output for 8.2.0
int(251138) int(87070198)
Output for 8.1.34
int(600085) int(93513050)
Output for 8.1.33
int(501226) int(82424780)
Output for 8.1.32
int(545074) int(71942443)
Output for 8.1.31
int(92149) int(57307980)
Output for 8.1.30
int(293893) int(57402504)
Output for 8.1.29
int(195807) int(78636302)
Output for 8.1.28
int(515687) int(116840558)
Output for 8.1.27
int(168845) int(116534198)
Output for 8.1.26
int(167953) int(110778345)
Output for 8.1.25
int(251228) int(119660029)
Output for 8.1.24
int(181414) int(110305793)
Output for 8.1.23
int(244088) int(116761040)
Output for 8.1.22
int(182997) int(108773013)
Output for 8.1.21
int(176936) int(111012447)
Output for 8.1.20
int(175564) int(109151193)
Output for 8.1.19
int(190889) int(112123472)
Output for 8.1.18
int(173611) int(131835416)
Output for 8.1.17
int(255244) int(133541579)
Output for 8.1.16
int(265199) int(136693879)
Output for 8.1.15
int(219450) int(112987224)
Output for 8.1.14
int(337578) int(136368378)
Output for 8.1.13
int(210408) int(126188297)
Output for 8.1.12
int(256856) int(141969237)
Output for 8.1.11
int(264850) int(128726582)
Output for 8.1.10
int(169415) int(130414526)
Output for 8.1.9
int(257437) int(118993874)
Output for 8.1.8
int(252409) int(136624523)
Output for 8.1.7
int(261675) int(128527181)
Output for 8.1.6
int(280433) int(128198506)
Output for 8.1.5
int(352422) int(129277271)
Output for 8.1.4
int(275986) int(118930900)
Output for 8.1.3
int(265480) int(132454550)
Output for 8.1.2
int(273372) int(116045073)
Output for 8.1.1
int(180422) int(108606993)
Output for 8.1.0
int(190247) int(109096501)

preferences:
47.26 ms | 982 KiB | 4 Q