3v4l.org

run code in 300+ PHP versions simultaneously
<?php $length = 10000; $arr = array(); for ($i = 0; $i < $length; $i++) { $arr[rand(0, 2) ? md5($i) : $i] = 'Some data'; } $start = microtime(1); for ($i = 0; $i < 100000; $i++) { isset($arr['abracadabra']); } $end = microtime(1); echo "Isset: ".($end - $start)."\n"; $start = microtime(1); for ($i = 0; $i < 100000; $i++) { array_key_exists('abracadabra', $arr); } $end = microtime(1); echo "array_key_exists: ".($end - $start)."\n";
Output for 7.3.12
Isset: 0.0024430751800537 array_key_exists: 0.0024940967559814
Output for 7.3.11
Isset: 0.0024740695953369 array_key_exists: 0.0025269985198975
Output for 7.3.10
Isset: 0.0025050640106201 array_key_exists: 0.0024898052215576
Output for 7.3.9
Isset: 0.0024120807647705 array_key_exists: 0.0024909973144531
Output for 7.3.8
Isset: 0.0024380683898926 array_key_exists: 0.0025320053100586
Output for 7.3.7
Isset: 0.0025510787963867 array_key_exists: 0.0025370121002197
Output for 7.3.6
Isset: 0.0026571750640869 array_key_exists: 0.0028359889984131
Output for 7.3.5
Isset: 0.002439022064209 array_key_exists: 0.0025360584259033
Output for 7.3.4
Isset: 0.0025491714477539 array_key_exists: 0.0026500225067139
Output for 7.3.3
Isset: 0.0023729801177979 array_key_exists: 0.0025899410247803
Output for 7.3.2
Isset: 0.0023980140686035 array_key_exists: 0.0025720596313477
Output for 7.3.1
Isset: 0.002471923828125 array_key_exists: 0.0025858879089355
Output for 7.3.0
Isset: 0.0025210380554199 array_key_exists: 0.0025711059570312
Output for 7.2.24
Isset: 0.002932071685791 array_key_exists: 0.0028910636901855
Output for 7.2.23
Isset: 0.0024740695953369 array_key_exists: 0.0027339458465576
Output for 7.2.22
Isset: 0.0024480819702148 array_key_exists: 0.0026860237121582
Output for 7.2.21
Isset: 0.0025110244750977 array_key_exists: 0.0028049945831299
Output for 7.2.20
Isset: 0.0024821758270264 array_key_exists: 0.0026760101318359
Output for 7.2.19
Isset: 0.0024039745330811 array_key_exists: 0.0026969909667969
Output for 7.2.18
Isset: 0.0033900737762451 array_key_exists: 0.0026960372924805
Output for 7.2.17
Isset: 0.0024199485778809 array_key_exists: 0.0026841163635254
Output for 7.2.16
Isset: 0.0028748512268066 array_key_exists: 0.0029411315917969
Output for 7.2.15
Isset: 0.0032069683074951 array_key_exists: 0.0029671192169189
Output for 7.2.14
Isset: 0.0024590492248535 array_key_exists: 0.0026590824127197
Output for 7.2.13
Isset: 0.0028729438781738 array_key_exists: 0.0026750564575195
Output for 7.2.12
Isset: 0.0029551982879639 array_key_exists: 0.0030679702758789
Output for 7.2.11
Isset: 0.0030391216278076 array_key_exists: 0.0026910305023193
Output for 7.2.10
Isset: 0.0030720233917236 array_key_exists: 0.0030720233917236
Output for 7.2.9
Isset: 0.0027608871459961 array_key_exists: 0.0029289722442627
Output for 7.2.8
Isset: 0.0032119750976562 array_key_exists: 0.0030438899993896
Output for 7.2.7
Isset: 0.0025300979614258 array_key_exists: 0.002824068069458
Output for 7.2.6
Isset: 0.0029280185699463 array_key_exists: 0.0029680728912354
Output for 7.2.5
Isset: 0.0033299922943115 array_key_exists: 0.0035300254821777
Output for 7.2.4
Isset: 0.002734899520874 array_key_exists: 0.0029571056365967
Output for 7.2.3
Isset: 0.0024569034576416 array_key_exists: 0.0026588439941406
Output for 7.2.2
Isset: 0.0030281543731689 array_key_exists: 0.0030210018157959
Output for 7.2.1
Isset: 0.0029129981994629 array_key_exists: 0.0029909610748291
Output for 7.2.0
Isset: 0.0025041103363037 array_key_exists: 0.002863883972168
Output for 7.1.33
Isset: 0.0046248435974121 array_key_exists: 0.0082530975341797
Output for 7.1.32
Isset: 0.0057229995727539 array_key_exists: 0.0075609683990479
Output for 7.1.31
Isset: 0.0045700073242188 array_key_exists: 0.0075790882110596
Output for 7.1.30
Isset: 0.0046110153198242 array_key_exists: 0.0076529979705811
Output for 7.1.29
Isset: 0.005230188369751 array_key_exists: 0.0077309608459473
Output for 7.1.28
Isset: 0.0046348571777344 array_key_exists: 0.0081470012664795
Output for 7.1.27
Isset: 0.0045950412750244 array_key_exists: 0.0075838565826416
Output for 7.1.26
Isset: 0.0046288967132568 array_key_exists: 0.0078020095825195
Output for 7.1.25
Isset: 0.0045828819274902 array_key_exists: 0.0083670616149902
Output for 7.1.7
Isset: 0.0017910003662109 array_key_exists: 0.0028021335601807
Output for 7.1.6
Isset: 0.0035281181335449 array_key_exists: 0.0058479309082031
Output for 7.1.5
Isset: 0.0016069412231445 array_key_exists: 0.0028469562530518
Output for 7.1.0
Isset: 0.0032341480255127 array_key_exists: 0.0046858787536621
Output for 7.0.20
Isset: 0.0018329620361328 array_key_exists: 0.0028960704803467
Output for 7.0.14
Isset: 0.0027849674224854 array_key_exists: 0.0041630268096924
Output for 7.0.6
Isset: 0.0025379657745361 array_key_exists: 0.0041170120239258
Output for 7.0.5
Isset: 0.0017051696777344 array_key_exists: 0.0028641223907471
Output for 7.0.4
Isset: 0.0024271011352539 array_key_exists: 0.0038340091705322
Output for 7.0.3
Isset: 0.0023720264434814 array_key_exists: 0.0035169124603271
Output for 7.0.2
Isset: 0.0019509792327881 array_key_exists: 0.0030901432037354
Output for 7.0.1
Isset: 0.0025129318237305 array_key_exists: 0.0040299892425537
Output for 7.0.0
Isset: 0.0024580955505371 array_key_exists: 0.003619909286499
Output for 5.6.21
Isset: 0.0033760070800781 array_key_exists: 0.011389017105103
Output for 5.6.20
Isset: 0.0035078525543213 array_key_exists: 0.011692047119141
Output for 5.6.19
Isset: 0.0036869049072266 array_key_exists: 0.012261867523193
Output for 5.6.18
Isset: 0.0040810108184814 array_key_exists: 0.014006853103638
Output for 5.6.17
Isset: 0.003216028213501 array_key_exists: 0.012189149856567
Output for 5.6.16
Isset: 0.0033810138702393 array_key_exists: 0.011559963226318
Output for 5.6.15
Isset: 0.0048871040344238 array_key_exists: 0.016700029373169
Output for 5.6.14
Isset: 0.0039958953857422 array_key_exists: 0.013124942779541
Output for 5.6.13
Isset: 0.0044398307800293 array_key_exists: 0.019163131713867
Output for 5.6.12
Isset: 0.0039329528808594 array_key_exists: 0.013713121414185
Output for 5.6.11
Isset: 0.0037789344787598 array_key_exists: 0.013282060623169
Output for 5.6.10
Isset: 0.0032470226287842 array_key_exists: 0.010998010635376
Output for 5.6.9
Isset: 0.0047869682312012 array_key_exists: 0.015696048736572
Output for 5.6.8
Isset: 0.0051310062408447 array_key_exists: 0.016165018081665
Output for 5.5.35
Isset: 0.0040838718414307 array_key_exists: 0.01423192024231
Output for 5.5.34
Isset: 0.00325608253479 array_key_exists: 0.011684894561768
Output for 5.5.33
Isset: 0.0048840045928955 array_key_exists: 0.016685962677002
Output for 5.5.32
Isset: 0.0053780078887939 array_key_exists: 0.016896963119507
Output for 5.5.31
Isset: 0.0044560432434082 array_key_exists: 0.015362977981567
Output for 5.5.30
Isset: 0.0034151077270508 array_key_exists: 0.012866020202637
Output for 5.5.29
Isset: 0.0051708221435547 array_key_exists: 0.016764879226685
Output for 5.5.28
Isset: 0.0046660900115967 array_key_exists: 0.016240835189819
Output for 5.5.27
Isset: 0.0039842128753662 array_key_exists: 0.014402866363525
Output for 5.5.26
Isset: 0.0046651363372803 array_key_exists: 0.015863180160522
Output for 5.5.25
Isset: 0.0047659873962402 array_key_exists: 0.016270875930786
Output for 5.5.24
Isset: 0.004270076751709 array_key_exists: 0.015131950378418
Output for 5.4.45
Isset: 0.0073540210723877 array_key_exists: 0.018321990966797
Output for 5.4.44
Isset: 0.0069680213928223 array_key_exists: 0.019021987915039
Output for 5.4.43
Isset: 0.0095019340515137 array_key_exists: 0.016681909561157
Output for 5.4.42
Isset: 0.0068769454956055 array_key_exists: 0.016238927841187
Output for 5.4.41
Isset: 0.012731075286865 array_key_exists: 0.028259038925171
Output for 5.4.40
Isset: 0.0069618225097656 array_key_exists: 0.01668906211853
Output for 5.4.39
Isset: 0.0079820156097412 array_key_exists: 0.044586896896362
Output for 5.4.38
Isset: 0.0093681812286377 array_key_exists: 0.042359828948975
Output for 5.4.37
Isset: 0.012754917144775 array_key_exists: 0.031038999557495
Output for 5.4.36
Isset: 0.013257026672363 array_key_exists: 0.018765926361084
Output for 5.4.35
Isset: 0.034747123718262 array_key_exists: 0.030503988265991
Output for 5.4.34
Isset: 0.01454496383667 array_key_exists: 0.025825977325439
Output for 5.4.32
Isset: 0.0080709457397461 array_key_exists: 0.028723001480103
Output for 5.4.31
Isset: 0.013599872589111 array_key_exists: 0.021148920059204
Output for 5.4.30
Isset: 0.010008096694946 array_key_exists: 0.036350965499878
Output for 5.4.29
Isset: 0.0076990127563477 array_key_exists: 0.020001173019409
Output for 5.4.28
Isset: 0.0075089931488037 array_key_exists: 0.035112857818604
Output for 5.4.27
Isset: 0.0081770420074463 array_key_exists: 0.029000043869019
Output for 5.4.26
Isset: 0.012207984924316 array_key_exists: 0.081646919250488
Output for 5.4.25
Isset: 0.01807713508606 array_key_exists: 0.052272081375122
Output for 5.4.24
Isset: 0.010668039321899 array_key_exists: 0.018132925033569
Output for 5.4.23
Isset: 0.0072507858276367 array_key_exists: 0.019993782043457
Output for 5.4.22
Isset: 0.0091919898986816 array_key_exists: 0.029680967330933
Output for 5.4.21
Isset: 0.0076131820678711 array_key_exists: 0.019852161407471
Output for 5.4.20
Isset: 0.0075299739837646 array_key_exists: 0.01701283454895
Output for 5.4.19
Isset: 0.0070919990539551 array_key_exists: 0.01792311668396
Output for 5.4.18
Isset: 0.0075709819793701 array_key_exists: 0.016901969909668
Output for 5.4.17
Isset: 0.0074450969696045 array_key_exists: 0.022752046585083
Output for 5.4.16
Isset: 0.0070521831512451 array_key_exists: 0.01634693145752
Output for 5.4.15
Isset: 0.0095770359039307 array_key_exists: 0.037648916244507
Output for 5.4.14
Isset: 0.0095980167388916 array_key_exists: 0.031491994857788
Output for 5.4.13
Isset: 0.007368803024292 array_key_exists: 0.032713174819946
Output for 5.4.12
Isset: 0.0072190761566162 array_key_exists: 0.017090082168579
Output for 5.4.11
Isset: 0.0069661140441895 array_key_exists: 0.016741991043091
Output for 5.4.10
Isset: 0.0069990158081055 array_key_exists: 0.017389059066772
Output for 5.4.9
Isset: 0.0071938037872314 array_key_exists: 0.017673015594482
Output for 5.4.8
Isset: 0.0081398487091064 array_key_exists: 0.01917290687561
Output for 5.4.7
Isset: 0.0073959827423096 array_key_exists: 0.017703056335449
Output for 5.4.6
Isset: 0.0072438716888428 array_key_exists: 0.018191814422607
Output for 5.4.5
Isset: 0.009274959564209 array_key_exists: 0.019789934158325
Output for 5.4.4
Isset: 0.010131120681763 array_key_exists: 0.028512954711914
Output for 5.4.3
Isset: 0.0071439743041992 array_key_exists: 0.018584012985229
Output for 5.4.2
Isset: 0.010205030441284 array_key_exists: 0.017546892166138
Output for 5.4.1
Isset: 0.0074310302734375 array_key_exists: 0.016690969467163
Output for 5.4.0
Isset: 0.007483959197998 array_key_exists: 0.017168045043945
Output for 5.3.29
Isset: 0.0090570449829102 array_key_exists: 0.023091077804565
Output for 5.3.28
Isset: 0.0091869831085205 array_key_exists: 0.020885944366455
Output for 5.3.27
Isset: 0.011390924453735 array_key_exists: 0.033991098403931
Output for 5.3.26
Isset: 0.014122009277344 array_key_exists: 0.039475202560425
Output for 5.3.25
Isset: 0.010869026184082 array_key_exists: 0.021799087524414
Output for 5.3.24
Isset: 0.012574195861816 array_key_exists: 0.020190000534058
Output for 5.3.23
Isset: 0.010279893875122 array_key_exists: 0.039553880691528
Output for 5.3.22
Isset: 0.0093650817871094 array_key_exists: 0.023024082183838
Output for 5.3.21
Isset: 0.010962963104248 array_key_exists: 0.031187057495117
Output for 5.3.20
Isset: 0.013497114181519 array_key_exists: 0.037926197052002
Output for 5.3.19
Isset: 0.013927936553955 array_key_exists: 0.041512966156006
Output for 5.3.18
Isset: 0.0096261501312256 array_key_exists: 0.022184133529663
Output for 5.3.17
Isset: 0.0086209774017334 array_key_exists: 0.037899971008301
Output for 5.3.16
Isset: 0.013375997543335 array_key_exists: 0.046694040298462
Output for 5.3.15
Isset: 0.020591974258423 array_key_exists: 0.078124046325684
Output for 5.3.14
Isset: 0.010688066482544 array_key_exists: 0.039472103118896
Output for 5.3.13
Isset: 0.012033939361572 array_key_exists: 0.035206079483032
Output for 5.3.12
Isset: 0.015146017074585 array_key_exists: 0.054574966430664
Output for 5.3.11
Isset: 0.022382974624634 array_key_exists: 0.062469959259033
Output for 5.3.10
Isset: 0.016900062561035 array_key_exists: 0.060500860214233
Output for 5.3.9
Isset: 0.019782066345215 array_key_exists: 0.050729990005493
Output for 5.3.8
Isset: 0.026914834976196 array_key_exists: 0.045094966888428
Output for 5.3.7
Isset: 0.0093631744384766 array_key_exists: 0.021612882614136
Output for 5.3.6
Isset: 0.009631872177124 array_key_exists: 0.054811000823975
Output for 5.3.5
Isset: 0.010518074035645 array_key_exists: 0.050180196762085
Output for 5.3.4
Isset: 0.015844821929932 array_key_exists: 0.045647859573364
Output for 5.3.3
Isset: 0.019784927368164 array_key_exists: 0.052939176559448
Output for 5.3.2
Isset: 0.026776075363159 array_key_exists: 0.084549903869629
Output for 5.3.1
Isset: 0.02230978012085 array_key_exists: 0.067291021347046
Output for 5.3.0
Isset: 0.022320032119751 array_key_exists: 0.041616916656494
Output for 5.2.17
Isset: 0.023891925811768 array_key_exists: 0.03391695022583
Output for 5.2.16
Isset: 0.024530172348022 array_key_exists: 0.033355951309204
Output for 5.2.15
Isset: 0.01247501373291 array_key_exists: 0.021524906158447
Output for 5.2.14
Isset: 0.016215085983276 array_key_exists: 0.023024082183838
Output for 5.2.13
Isset: 0.02701210975647 array_key_exists: 0.041007041931152
Output for 5.2.12
Isset: 0.025367975234985 array_key_exists: 0.050904035568237
Output for 5.2.11
Isset: 0.021765947341919 array_key_exists: 0.051272869110107
Output for 5.2.10
Isset: 0.033108949661255 array_key_exists: 0.050122976303101
Output for 5.2.9
Isset: 0.024391889572144 array_key_exists: 0.033996105194092
Output for 5.2.8
Isset: 0.020660877227783 array_key_exists: 0.042834997177124
Output for 5.2.7
Isset: 0.027978897094727 array_key_exists: 0.036789178848267
Output for 5.2.6
Isset: 0.022522926330566 array_key_exists: 0.045109033584595
Output for 5.2.5
Isset: 0.018706798553467 array_key_exists: 0.04566216468811
Output for 5.2.4
Isset: 0.036251068115234 array_key_exists: 0.042234897613525
Output for 5.2.3
Isset: 0.014440059661865 array_key_exists: 0.06295919418335
Output for 5.2.2
Isset: 0.018772125244141 array_key_exists: 0.053900003433228
Output for 5.2.1
Isset: 0.025087118148804 array_key_exists: 0.068197011947632
Output for 5.2.0
Isset: 0.052695989608765 array_key_exists: 0.12920880317688
Output for 5.1.6
Isset: 0.035623073577881 array_key_exists: 0.07223105430603
Output for 5.1.5
Isset: 0.033194065093994 array_key_exists: 0.074294090270996
Output for 5.1.4
Isset: 0.038137197494507 array_key_exists: 0.067318916320801
Output for 5.1.3
Isset: 0.034073114395142 array_key_exists: 0.078974008560181
Output for 5.1.2
Isset: 0.017883062362671 array_key_exists: 0.10051488876343
Output for 5.1.1
Isset: 0.026767015457153 array_key_exists: 0.089693069458008
Output for 5.1.0
Isset: 0.024904012680054 array_key_exists: 0.086080074310303
Output for 5.0.5
Isset: 0.07947301864624 array_key_exists: 0.0816810131073
Output for 5.0.4
Isset: 0.056183099746704 array_key_exists: 0.082978010177612
Output for 5.0.3
Isset: 0.040440082550049 array_key_exists: 0.077180862426758
Output for 5.0.2
Isset: 0.065836191177368 array_key_exists: 0.077988147735596
Output for 5.0.1
Isset: 0.051283121109009 array_key_exists: 0.091248035430908
Output for 5.0.0
Isset: 0.048879146575928 array_key_exists: 0.072681188583374
Output for 4.4.9
Isset: 0.041447 array_key_exists: 0.118251
Output for 4.4.8
Isset: 0.05409 array_key_exists: 0.079146
Output for 4.4.7
Isset: 0.039215 array_key_exists: 0.065318
Output for 4.4.6
Isset: 0.065396 array_key_exists: 0.146541
Output for 4.4.5
Isset: 0.079492 array_key_exists: 0.113349
Output for 4.4.4
Isset: 0.043925 array_key_exists: 0.083494
Output for 4.4.3
Isset: 0.055648 array_key_exists: 0.139722
Output for 4.4.2
Isset: 0.048229 array_key_exists: 0.077598
Output for 4.4.1
Isset: 0.046516 array_key_exists: 0.08563
Output for 4.4.0
Isset: 0.045739 array_key_exists: 0.117636
Output for 4.3.11
Isset: 0.046516 array_key_exists: 0.092604
Output for 4.3.10
Isset: 0.023402 array_key_exists: 0.0965
Output for 4.3.9
Isset: -0.933064 array_key_exists: 0.089886
Output for 4.3.8
Isset: 0.046705 array_key_exists: 0.065534
Output for 4.3.7
Isset: 0.040344 array_key_exists: 0.095343
Output for 4.3.6
Isset: -0.921754 array_key_exists: 0.073448
Output for 4.3.5
Isset: 0.038547 array_key_exists: 0.089467
Output for 4.3.4
Isset: 0.042273 array_key_exists: 0.067715
Output for 4.3.3
Isset: 0.023988 array_key_exists: 0.086189
Output for 4.3.2
Isset: 0.039944 array_key_exists: 0.052085
Output for 4.3.1
Isset: 0.039906 array_key_exists: 0.093492
Output for 4.3.0
Isset: 0.015001 array_key_exists: 0.02488

preferences:
180.11 ms | 401 KiB | 219 Q