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run code in 300+ PHP versions simultaneously
<?php namespace Foo; define ('Foo\null', 1); $start = microtime(true); for ($i=0;$i<10000;$i++) { $a = \is_null($i); } var_dump(microtime(true) - $start); $start = microtime(true); for ($i=0;$i<10000;$i++) { $a = null === $i; } var_dump(microtime(true) - $start);
Output for 8.0.11
float(0.00013589859008789062) float(0.00017404556274414062)
Output for 8.0.10
float(0.00013494491577148438) float(0.0001308917999267578)
Output for 8.0.9
float(0.00013589859008789062) float(0.00013303756713867188)
Output for 8.0.8
float(0.00017118453979492188) float(0.00015497207641601562)
Output for 8.0.7
float(0.00015020370483398438) float(0.00013399124145507812)
Output for 8.0.6
float(0.00013899803161621094) float(0.00013208389282226562)
Output for 8.0.5
float(0.00013589859008789062) float(0.0001327991485595703)
Output for 8.0.3
float(8.606910705566406E-5) float(9.417533874511719E-5)
Output for 8.0.2
float(0.00011086463928222656) float(0.00011301040649414062)
Output for 8.0.1
float(0.00013589859008789062) float(0.00013399124145507812)
Output for 8.0.0
float(0.00011801719665527344) float(0.00012111663818359375)
Output for 7.4.24
float(0.00016021728515625) float(0.00017905235290527)
Output for 7.4.23
float(0.00016117095947266) float(0.00017881393432617)
Output for 7.4.22
float(0.00016999244689941) float(0.00027799606323242)
Output for 7.4.21
float(0.00014710426330566) float(0.00018191337585449)
Output for 7.4.20
float(0.00016498565673828) float(0.00018906593322754)
Output for 7.4.16
float(0.00016403198242188) float(0.0001978874206543)
Output for 7.4.15
float(0.00013303756713867) float(0.00020885467529297)
Output for 7.4.14
float(0.00024199485778809) float(0.00039410591125488)
Output for 7.4.13
float(0.00015687942504883) float(0.00016880035400391)
Output for 7.4.12
float(0.00023603439331055) float(0.00015687942504883)
Output for 7.4.11
float(0.00021505355834961) float(0.00022792816162109)
Output for 7.4.10
float(0.00014996528625488) float(0.0001828670501709)
Output for 7.4.9
float(0.00014114379882812) float(0.00020599365234375)
Output for 7.4.8
float(0.00014209747314453) float(0.0002140998840332)
Output for 7.4.7
float(0.00014090538024902) float(0.00018119812011719)
Output for 7.4.6
float(0.00014281272888184) float(0.00017809867858887)
Output for 7.4.5
float(0.00020003318786621) float(0.0002291202545166)
Output for 7.4.4
float(0.00023293495178223) float(0.00016999244689941)
Output for 7.4.3
float(0.00016188621520996) float(0.00085783004760742)
Output for 7.4.1
float(0.00018405914306641) float(0.00027894973754883)
Output for 7.4.0
float(0.00018596649169922) float(0.00022006034851074)
Output for 7.3.30
float(0.00019192695617676) float(0.00017905235290527)
Output for 7.3.29
float(0.00017404556274414) float(0.00017905235290527)
Output for 7.3.28
float(0.00022196769714355) float(0.00019001960754395)
Output for 7.3.27
float(0.00019192695617676) float(0.00019598007202148)
Output for 7.3.26
float(0.00028800964355469) float(0.00030779838562012)
Output for 7.3.25
float(0.00022292137145996) float(0.00021600723266602)
Output for 7.3.24
float(0.00022697448730469) float(0.00025010108947754)
Output for 7.3.23
float(0.0003058910369873) float(0.00029993057250977)
Output for 7.3.21
float(0.00018811225891113) float(0.00020003318786621)
Output for 7.3.20
float(0.00018787384033203) float(0.00019288063049316)
Output for 7.3.19
float(0.0002899169921875) float(0.00029611587524414)
Output for 7.3.18
float(0.00029110908508301) float(0.00033688545227051)
Output for 7.3.17
float(0.0003211498260498) float(0.00041484832763672)
Output for 7.3.16
float(0.00019192695617676) float(0.00019001960754395)
Output for 7.3.13
float(0.00017690658569336) float(0.00017499923706055)
Output for 7.3.12
float(0.00024795532226562) float(0.00025606155395508)
Output for 7.3.11
float(0.00023007392883301) float(0.00023794174194336)
Output for 7.3.10
float(0.0002281665802002) float(0.00022792816162109)
Output for 7.3.9
float(0.00020980834960938) float(0.00022506713867188)
Output for 7.3.8
float(0.00016593933105469) float(0.00018501281738281)
Output for 7.3.7
float(0.00025105476379395) float(0.00024604797363281)
Output for 7.3.6
float(0.00019097328186035) float(0.00020289421081543)
Output for 7.3.5
float(0.00032496452331543) float(0.00034189224243164)
Output for 7.3.4
float(0.0001521110534668) float(0.0001518726348877)
Output for 7.3.3
float(0.00021505355834961) float(0.00021910667419434)
Output for 7.3.2
float(0.00023508071899414) float(0.00024509429931641)
Output for 7.3.1
float(0.00027799606323242) float(0.00027894973754883)
Output for 7.3.0
float(0.00016212463378906) float(0.00016188621520996)
Output for 7.2.33
float(0.0010249614715576) float(0.00039005279541016)
Output for 7.2.32
float(0.00024509429931641) float(0.00019001960754395)
Output for 7.2.31
float(0.00023388862609863) float(0.00021100044250488)
Output for 7.2.30
float(0.00028300285339355) float(0.00032687187194824)
Output for 7.2.29
float(0.00053691864013672) float(0.00033211708068848)
Output for 7.2.26
float(0.00025796890258789) float(0.00024604797363281)
Output for 7.2.25
float(0.00018882751464844) float(0.00020694732666016)
Output for 7.2.24
float(0.00017189979553223) float(0.00016117095947266)
Output for 7.2.23
float(0.00030398368835449) float(0.00034999847412109)
Output for 7.2.22
float(0.00024604797363281) float(0.00022101402282715)
Output for 7.2.21
float(0.00032711029052734) float(0.00032520294189453)
Output for 7.2.19 - 7.2.20
float(0.00017285346984863) float(0.00016117095947266)
Output for 7.2.18
float(0.00032615661621094) float(0.00029182434082031)
Output for 7.2.17
float(0.00038313865661621) float(0.00031113624572754)
Output for 7.2.16
float(0.00026702880859375) float(0.00025796890258789)
Output for 7.2.15
float(0.00034689903259277) float(0.00033116340637207)
Output for 7.2.14
float(0.00018596649169922) float(0.00016403198242188)
Output for 7.2.13
float(0.00018405914306641) float(0.00018310546875)
Output for 7.2.12
float(0.00017213821411133) float(0.00016117095947266)
Output for 7.2.11
float(0.00019288063049316) float(0.00016617774963379)
Output for 7.2.10
float(0.00016903877258301) float(0.00015997886657715)
Output for 7.2.9
float(0.00017786026000977) float(0.00016021728515625)
Output for 7.2.8
float(0.00017905235290527) float(0.00016117095947266)
Output for 7.2.7
float(0.00017309188842773) float(0.00015997886657715)
Output for 7.2.6
float(0.00027704238891602) float(0.00026607513427734)
Output for 7.2.5
float(0.00016999244689941) float(0.00016117095947266)
Output for 7.2.4
float(0.00018787384033203) float(0.00017881393432617)
Output for 7.2.3
float(0.00016999244689941) float(0.00017189979553223)
Output for 7.2.2
float(0.00040483474731445) float(0.00036883354187012)
Output for 7.2.1
float(0.00019598007202148) float(0.00016093254089355)
Output for 7.2.0
float(0.00022315979003906) float(0.0001978874206543)
Output for 7.1.33
float(0.00061297416687012) float(0.00057697296142578)
Output for 7.1.32
float(0.00047111511230469) float(0.00047111511230469)
Output for 7.1.31
float(0.00048208236694336) float(0.00047707557678223)
Output for 7.1.30
float(0.0010488033294678) float(0.0010359287261963)
Output for 7.1.29
float(0.00098299980163574) float(0.00098085403442383)
Output for 7.1.28
float(0.00048303604125977) float(0.00047612190246582)
Output for 7.1.27
float(0.00081110000610352) float(0.00077199935913086)
Output for 7.1.26
float(0.00053691864013672) float(0.00052404403686523)
Output for 7.1.25
float(0.00058507919311523) float(0.00058698654174805)
Output for 7.1.24
float(0.00053501129150391) float(0.00051784515380859)
Output for 7.1.23
float(0.00047588348388672) float(0.00046300888061523)
Output for 7.1.22
float(0.00063109397888184) float(0.00061988830566406)
Output for 7.1.21
float(0.00058889389038086) float(0.00060200691223145)
Output for 7.1.20
float(0.00087308883666992) float(0.00076699256896973)
Output for 7.1.19
float(0.00047898292541504) float(0.00047397613525391)
Output for 7.1.18
float(0.001209020614624) float(0.0011270046234131)
Output for 7.1.17
float(0.00081396102905273) float(0.00057387351989746)
Output for 7.1.16
float(0.0012171268463135) float(0.001086950302124)
Output for 7.1.15
float(0.00050592422485352) float(0.00050210952758789)
Output for 7.1.14
float(0.00047898292541504) float(0.00046610832214355)
Output for 7.1.13
float(0.00047898292541504) float(0.00047802925109863)
Output for 7.1.12
float(0.00075602531433105) float(0.00076007843017578)
Output for 7.1.11
float(0.00047802925109863) float(0.0004730224609375)
Output for 7.1.10
float(0.00076889991760254) float(0.00073385238647461)
Output for 7.1.9
float(0.00048184394836426) float(0.00046896934509277)
Output for 7.1.8
float(0.00086617469787598) float(0.00090193748474121)
Output for 7.1.7
float(0.00064682960510254) float(0.00062298774719238)
Output for 7.1.6
float(0.00068807601928711) float(0.00067281723022461)
Output for 7.1.5
float(0.00085783004760742) float(0.00080013275146484)
Output for 7.1.4
float(0.00047492980957031) float(0.00046920776367188)
Output for 7.1.3
float(0.00047993659973145) float(0.00046420097351074)
Output for 7.1.2
float(0.00071406364440918) float(0.00070405006408691)
Output for 7.1.1
float(0.00085091590881348) float(0.0008540153503418)
Output for 7.1.0
float(0.00092196464538574) float(0.00092220306396484)
Output for 7.0.33
float(0.00050592422485352) float(0.00047898292541504)
Output for 7.0.32
float(0.00084090232849121) float(0.00082302093505859)
Output for 7.0.31
float(0.00078916549682617) float(0.00080013275146484)
Output for 7.0.30
float(0.00048089027404785) float(0.0004727840423584)
Output for 7.0.29
float(0.00048089027404785) float(0.00047397613525391)
Output for 7.0.28
float(0.00060415267944336) float(0.00057816505432129)
Output for 7.0.27
float(0.00090789794921875) float(0.00086784362792969)
Output for 7.0.26
float(0.00094294548034668) float(0.00091886520385742)
Output for 7.0.25
float(0.00093984603881836) float(0.00091695785522461)
Output for 7.0.24
float(0.00048208236694336) float(0.00047397613525391)
Output for 7.0.23
float(0.00092792510986328) float(0.00095891952514648)
Output for 7.0.22
float(0.00078082084655762) float(0.00075888633728027)
Output for 7.0.21
float(0.00065207481384277) float(0.00064301490783691)
Output for 7.0.20
float(0.0008089542388916) float(0.00078201293945312)
Output for 7.0.19
float(0.00090909004211426) float(0.00048303604125977)
Output for 7.0.18
float(0.00048708915710449) float(0.00047588348388672)
Output for 7.0.17
float(0.00058197975158691) float(0.00060200691223145)
Output for 7.0.16
float(0.00077986717224121) float(0.00089597702026367)
Output for 7.0.15
float(0.00047492980957031) float(0.00047183036804199)
Output for 7.0.14
float(0.00047612190246582) float(0.00047588348388672)
Output for 7.0.13
float(0.0012011528015137) float(0.00049805641174316)
Output for 7.0.12
float(0.00064492225646973) float(0.00063896179199219)
Output for 7.0.11
float(0.0004878044128418) float(0.00048303604125977)
Output for 7.0.10
float(0.0013279914855957) float(0.00063514709472656)
Output for 7.0.9
float(0.0011320114135742) float(0.0011119842529297)
Output for 7.0.8
float(0.00076103210449219) float(0.00074195861816406)
Output for 7.0.7
float(0.00072097778320312) float(0.00070905685424805)
Output for 7.0.6
float(0.0011539459228516) float(0.0004727840423584)
Output for 7.0.5
float(0.00072097778320312) float(0.00046396255493164)
Output for 7.0.4
float(0.0015029907226562) float(0.00069808959960938)
Output for 7.0.3
float(0.00078177452087402) float(0.00068402290344238)
Output for 7.0.2
float(0.00092792510986328) float(0.00068807601928711)
Output for 7.0.1
float(0.00091290473937988) float(0.00070285797119141)
Output for 7.0.0
float(0.00069093704223633) float(0.00067710876464844)
Output for 5.6.40
float(0.0017340183258057) float(0.0012738704681396)
Output for 5.6.39
float(0.0018630027770996) float(0.0012638568878174)
Output for 5.6.38
float(0.0018961429595947) float(0.001338005065918)
Output for 5.6.37
float(0.0018298625946045) float(0.0012738704681396)
Output for 5.6.36
float(0.0024287700653076) float(0.0012691020965576)
Output for 5.6.35
float(0.0021710395812988) float(0.0013351440429688)
Output for 5.6.34
float(0.0022668838500977) float(0.0015959739685059)
Output for 5.6.33
float(0.0018529891967773) float(0.0013370513916016)
Output for 5.6.32
float(0.0017819404602051) float(0.0012810230255127)
Output for 5.6.31
float(0.0017499923706055) float(0.0012869834899902)
Output for 5.6.30
float(0.0017948150634766) float(0.0012550354003906)
Output for 5.6.29
float(0.0022408962249756) float(0.001723051071167)
Output for 5.6.28
float(0.0018689632415771) float(0.0012719631195068)
Output for 5.6.27
float(0.0024919509887695) float(0.0012879371643066)
Output for 5.6.26
float(0.0017871856689453) float(0.0012590885162354)
Output for 5.6.25
float(0.0018861293792725) float(0.0013458728790283)
Output for 5.6.24
float(0.0025858879089355) float(0.0018899440765381)
Output for 5.6.23
float(0.001737117767334) float(0.0012941360473633)
Output for 5.6.22
float(0.0034139156341553) float(0.0013010501861572)
Output for 5.6.21
float(0.0018448829650879) float(0.0012409687042236)
Output for 5.6.20
float(0.0024268627166748) float(0.0012929439544678)
Output for 5.6.19
float(0.0018520355224609) float(0.0012431144714355)
Output for 5.6.18
float(0.0034549236297607) float(0.0023279190063477)
Output for 5.6.17
float(0.0020279884338379) float(0.0012738704681396)
Output for 5.6.16
float(0.0017220973968506) float(0.0012950897216797)
Output for 5.6.15
float(0.0017490386962891) float(0.0012857913970947)
Output for 5.6.14
float(0.0017969608306885) float(0.0013620853424072)
Output for 5.6.13
float(0.0017850399017334) float(0.0012919902801514)
Output for 5.6.12
float(0.0019071102142334) float(0.0013608932495117)
Output for 5.6.11
float(0.0017478466033936) float(0.0013048648834229)
Output for 5.6.10
float(0.0022540092468262) float(0.001533031463623)
Output for 5.6.9
float(0.0017268657684326) float(0.0012791156768799)
Output for 5.6.8
float(0.0018579959869385) float(0.0012829303741455)
Output for 5.6.7
float(0.001978874206543) float(0.001399040222168)
Output for 5.6.6
float(0.0041031837463379) float(0.0018460750579834)
Output for 5.6.5
float(0.0018420219421387) float(0.0012788772583008)
Output for 5.6.4
float(0.0018839836120605) float(0.0012490749359131)
Output for 5.6.3
float(0.0042009353637695) float(0.0012450218200684)
Output for 5.6.2
float(0.001906156539917) float(0.0012540817260742)
Output for 5.6.1
float(0.0018751621246338) float(0.0012669563293457)
Output for 5.6.0
float(0.0018939971923828) float(0.0013179779052734)
Output for 5.5.38
float(0.0031421184539795) float(0.002108097076416)
Output for 5.5.37
float(0.0033760070800781) float(0.0021870136260986)
Output for 5.5.36
float(0.0018830299377441) float(0.0013079643249512)
Output for 5.5.35
float(0.0019240379333496) float(0.0012950897216797)
Output for 5.5.34
float(0.0026519298553467) float(0.0017600059509277)
Output for 5.5.33
float(0.0019161701202393) float(0.0012989044189453)
Output for 5.5.32
float(0.0019059181213379) float(0.0012869834899902)
Output for 5.5.31
float(0.0028879642486572) float(0.001939058303833)
Output for 5.5.30
float(0.002830982208252) float(0.0012741088867188)
Output for 5.5.29
float(0.0038149356842041) float(0.0012619495391846)
Output for 5.5.28
float(0.0019819736480713) float(0.0012969970703125)
Output for 5.5.27
float(0.0031819343566895) float(0.0019259452819824)
Output for 5.5.26
float(0.0018131732940674) float(0.0012679100036621)
Output for 5.5.25
float(0.0018699169158936) float(0.0012681484222412)
Output for 5.5.24
float(0.0018489360809326) float(0.0012810230255127)
Output for 5.5.23
float(0.0028800964355469) float(0.0012979507446289)
Output for 5.5.22
float(0.0023341178894043) float(0.0016138553619385)
Output for 5.5.21
float(0.002918004989624) float(0.0020780563354492)
Output for 5.5.20
float(0.0026118755340576) float(0.0018541812896729)
Output for 5.5.19
float(0.0017879009246826) float(0.0012960433959961)
Output for 5.5.18
float(0.0028679370880127) float(0.0012719631195068)
Output for 5.5.17
float(0.0025229454040527) float(0.0013930797576904)
Output for 5.5.16
float(0.0031778812408447) float(0.0020990371704102)
Output for 5.5.15
float(0.0018489360809326) float(0.0012872219085693)
Output for 5.5.14
float(0.0029540061950684) float(0.0021131038665771)
Output for 5.5.13
float(0.0025949478149414) float(0.001845121383667)
Output for 5.5.12
float(0.0031740665435791) float(0.0022239685058594)
Output for 5.5.11
float(0.0029878616333008) float(0.0013298988342285)
Output for 5.5.10
float(0.0018329620361328) float(0.001291036605835)
Output for 5.5.9
float(0.0019230842590332) float(0.0013089179992676)
Output for 5.5.8
float(0.004127025604248) float(0.0012879371643066)
Output for 5.5.7
float(0.0027980804443359) float(0.0019009113311768)
Output for 5.5.6
float(0.001910924911499) float(0.0013060569763184)
Output for 5.5.5
float(0.0020120143890381) float(0.001288890838623)
Output for 5.5.4
float(0.0034048557281494) float(0.0018470287322998)
Output for 5.5.3
float(0.0026528835296631) float(0.0012991428375244)
Output for 5.5.2
float(0.0025231838226318) float(0.0012600421905518)
Output for 5.5.1
float(0.0022218227386475) float(0.0016129016876221)
Output for 5.5.0
float(0.002007007598877) float(0.0014009475708008)

preferences:
190.37 ms | 401 KiB | 245 Q