3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo uniqid(), "\n"; echo uniqid('x'), "\n"; echo uniqid('x', true), "\n";
Output for 7.1.0
531f2eb700e9b x531f2eb700edd x531f2eb700ee28.21424365
Output for 7.0.14
531f2eb700f46 x531f2eb700f96 x531f2eb700f9b8.41749603
Output for 7.0.7
5746bcd95512f x5746bcd95516e x5746bcd9551704.56357515
Output for 7.0.6
5727c613a6bf2 x5727c613a6c38 x5727c613a6c3a2.35894113
Output for 7.0.5
56ffa65ec1de4 x56ffa65ec1e28 x56ffa65ec1e2b3.64173729
Output for 7.0.4
56e08c9706ef3 x56e08c9706f39 x56e08c9706f3b9.50578754
Output for 7.0.3
56eb1e6d0416b x56eb1e6d041b2 x56eb1e6d041b52.81294379
Output for 7.0.2
56efa9fb7cfa4 x56efa9fb7cfe8 x56efa9fb7cfec7.19150416
Output for 7.0.1
56f247e563527 x56f247e56356d x56f247e5635728.08577287
Output for 7.0.0
56f6699922ee0 x56f6699922f1e x56f6699922f215.81528344
Output for 5.6.21
57262f740b210 x57262f740b255 x57262f740b2591.61297543
Output for 5.6.20
57089f1219860 x57089f121989f x57089f12198a25.13294402
Output for 5.6.19
56dc6d6f48545 x56dc6d6f48587 x56dc6d6f4858b9.26071605
Output for 5.6.18
56e656dff3850 x56e656dff3895 x56e656dff389a0.90365730
Output for 5.6.17
56ecb0041815c x56ecb004181a5 x56ecb004181a91.46370739
Output for 5.6.16
56f7c5041dba7 x56f7c5041dbef x56f7c5041dbf31.76778631
Output for 5.6.15
56f92250119ad x56f92250119f3 x56f92250119fc8.86359137
Output for 5.6.14
56fe90fd5b083 x56fe90fd5b0c6 x56fe90fd5b0c91.10053676
Output for 5.6.13
570febf5b04fa x570febf5b053f x570febf5b05453.13810771
Output for 5.6.12
5715e8a6a0d34 x5715e8a6a0d7b x5715e8a6a0d7f2.32301194
Output for 5.6.11
571a4492aefbe x571a4492af008 x571a4492af00d3.02963922
Output for 5.6.10
571cfe646bc59 x571cfe646bc98 x571cfe646bc9c5.79438367
Output for 5.6.9
571fe6e5b13d3 x571fe6e5b141a x571fe6e5b141e3.54272459
Output for 5.6.8
5722f57f52515 x5722f57f52559 x5722f57f5255d6.03590189
Output for 5.6.7
574470cd076b2 x574470cd076f7 x574470cd076fb9.28621888
Output for 5.5.35
5740b931ad4ee x5740b931ad534 x5740b931ad5361.07566890
Output for 5.5.34
570a3c81d7491 x570a3c81d74d4 x570a3c81d74da9.88537648
Output for 5.5.33
56de8623c6ca2 x56de8623c6ce9 x56de8623c6cee0.79931099
Output for 5.5.32
56e8406f7fe65 x56e8406f7feac x56e8406f7feaf9.42141288
Output for 5.5.31
56ee2b149b50e x56ee2b149b555 x56ee2b149b5587.32577064
Output for 5.5.30
56fd35efada60 x56fd35efadaa5 x56fd35efadaa78.57034005
Output for 5.5.29
57120190a8eae x57120190a8ef6 x57120190a8ef92.24559587
Output for 5.5.28
57176524c9192 x57176524c91d7 x57176524c91dc8.04768564
Output for 5.5.27
5718ddfd12ae2 x5718ddfd12b2b x5718ddfd12b363.04102940
Output for 5.5.26
571e6f06bc530 x571e6f06bc576 x571e6f06bc57b0.71738350
Output for 5.5.25
57216764ea80d x57216764ea84c x57216764ea84f9.90985453
Output for 5.5.24
572477816a254 x572477816a2c4 x572477816a2cc1.74445219
Output for 5.4.45
55f199e4b3e28 x55f199e4b3eae x55f199e4b3eb75.49347151
Output for 5.4.44
55e35e3407be6 x55e35e3407c71 x55e35e3407c8b4.83062101
Output for 5.4.43
55e35e30e3f75 x55e35e30e4029 x55e35e30e40493.39095808
Output for 5.4.42
55e35e2f9740c x55e35e2f974a1 x55e35e2f974c77.71927954
Output for 5.4.41
55e35e2d53c2f x55e35e2d53d06 x55e35e2d53d289.30712494
Output for 5.4.40
55e35e2ad25e7 x55e35e2ad269d x55e35e2ad26c07.57846309
Output for 5.4.39
55e35e2a6a903 x55e35e2a6a992 x55e35e2a6a9aa4.79044428
Output for 5.4.38
54f1bb1b8de0d x54f1bb1b8de9f x54f1bb1b8def35.25512735
Output for 5.4.37
54d28fb03b075 x54d28fb03b0c6 x54d28fb03b0ce8.43246762
Output for 5.4.36
54d28fafdff91 x54d28fafdffe3 x54d28fafdffea0.76247574
Output for 5.4.35
54672cfbaca4f x54672cfbacac1 x54672cfbacad21.45573275
Output for 5.4.34
54672cfb464da x54672cfb46555 x54672cfb4656b6.12444657
Output for 5.4.32
54009f7f42012 x54009f7f42094 x54009f7f420c56.85046394
Output for 5.4.31
54009f793ae53 x54009f793aee5 x54009f793af039.12331885
Output for 5.4.30
54009f741646a x54009f74164ec x54009f74164fd3.03298460
Output for 5.4.29
54009f739c780 x54009f739c7fe x54009f739c8160.23844049
Output for 5.4.28
54009f732d64c x54009f732d6b6 x54009f732d6c40.56618698
Output for 5.4.27
54009f7a64f91 x54009f7a65017 x54009f7a650334.01286387
Output for 5.4.26
531f2eb8af5b9 x531f2eb8af653 x531f2eb8af6781.31156824
Output for 5.4.25
531f2eb8bb19a x531f2eb8bb20d x531f2eb8bb21e6.84323943
Output for 5.4.24
531f2eb8c61af x531f2eb8c6221 x531f2eb8c623e1.50605811
Output for 5.4.23
531f2eb8d166d x531f2eb8d16e6 x531f2eb8d16fd1.58466361
Output for 5.4.22
531f2eb8dc50a x531f2eb8dc57c x531f2eb8dc5901.09236960
Output for 5.4.21
531f2eb8e7145 x531f2eb8e7194 x531f2eb8e71a71.58090688
Output for 5.4.20
531f2eb8f27ed x531f2eb8f2869 x531f2eb8f287d7.53742579
Output for 5.4.19
531f2eb9097e6 x531f2eb90985d x531f2eb9098708.37521928
Output for 5.4.18
531f2eb91413b x531f2eb9141b0 x531f2eb9141c42.39397672
Output for 5.4.17
531f2eb91f7d1 x531f2eb91f845 x531f2eb91f8584.11204858
Output for 5.4.16
531f2eb92ac98 x531f2eb92ad0d x531f2eb92ad204.44555877
Output for 5.4.15
531f2eb935843 x531f2eb9358bc x531f2eb9358da0.10550801
Output for 5.4.14
531f2eb940cee x531f2eb940d73 x531f2eb940d893.87991844
Output for 5.4.13
531f2eb94bfbb x531f2eb94c030 x531f2eb94c0444.81539460
Output for 5.4.12
531f2eb958966 x531f2eb9589f3 x531f2eb958a0e3.25656385
Output for 5.4.11
531f2eb965cf2 x531f2eb965d88 x531f2eb965dab9.15490118
Output for 5.4.10
531f2eb972884 x531f2eb9728fe x531f2eb9729117.53065493
Output for 5.4.9
531f2eb97dc40 x531f2eb97dcbd x531f2eb97dcd16.67055639
Output for 5.4.8
531f2eb988ede x531f2eb988f5d x531f2eb988f717.48462215
Output for 5.4.7
531f2eb993fbc x531f2eb99404c x531f2eb99406c2.46368578
Output for 5.4.6
531f2eb9a2715 x531f2eb9a27a1 x531f2eb9a27c20.35721534
Output for 5.4.5
531f2eb9b078b x531f2eb9b080a x531f2eb9b081c1.19983498
Output for 5.4.4
531f2eb9bad18 x531f2eb9bad97 x531f2eb9badb56.63764766
Output for 5.4.3
531f2eb9c56ec x531f2eb9c575c x531f2eb9c576e7.36812186
Output for 5.4.2
531f2eb9cff96 x531f2eb9d000b x531f2eb9d001d1.94155673
Output for 5.4.1
531f2eb9ddbb2 x531f2eb9ddc44 x531f2eb9ddc658.11838235
Output for 5.4.0
531f2eb9ec0c5 x531f2eb9ec11e x531f2eb9ec1259.87337993
Output for 5.3.29
54009f7500bcc x54009f7500c51 x54009f7500c638.34870547
Output for 5.3.28
531f2eba03110 x531f2eba03193 x531f2eba031b02.41952000
Output for 5.3.27
531f2eba10862 x531f2eba108d8 x531f2eba108e84.51359805
Output for 5.3.26
531f2eba1c525 x531f2eba1c5aa x531f2eba1c5bf7.35983904
Output for 5.3.25
531f2eba2763f x531f2eba276c9 x531f2eba276da1.25260445
Output for 5.3.24
531f2eba3371a x531f2eba337a4 x531f2eba337bf0.93944130
Output for 5.3.23
531f2eba4017c x531f2eba4021b x531f2eba402367.83034910
Output for 5.3.22
531f2eba4c261 x531f2eba4c2dd x531f2eba4c2f00.57360330
Output for 5.3.21
531f2eba58ed1 x531f2eba58f5f x531f2eba58f7b5.61660905
Output for 5.3.20
531f2eba68240 x531f2eba682ef x531f2eba683122.57217355
Output for 5.3.19
531f2eba74eeb x531f2eba74f60 x531f2eba74f755.87385010
Output for 5.3.18
531f2eba7fabf x531f2eba7fb44 x531f2eba7fb562.44287713
Output for 5.3.17
531f2eba8aac0 x531f2eba8ab34 x531f2eba8ab470.19868398
Output for 5.3.16
531f2eba96585 x531f2eba96604 x531f2eba9661f1.15822661
Output for 5.3.15
531f2ebaa1dad x531f2ebaa1e28 x531f2ebaa1e3a6.58830407
Output for 5.3.14
531f2ebaae6c4 x531f2ebaae73b x531f2ebaae7621.27637525
Output for 5.3.13
531f2ebab9f75 x531f2ebab9ff1 x531f2ebaba0048.33042398
Output for 5.3.12
531f2ebac59b9 x531f2ebac5a2e x531f2ebac5a405.94047925
Output for 5.3.11
531f2ebad235f x531f2ebad23e5 x531f2ebad24014.15069927
Output for 5.3.10
531f2ebae3016 x531f2ebae30ab x531f2ebae30c96.16874276
Output for 5.3.9
531f2ebaf2934 x531f2ebaf29c0 x531f2ebaf29da8.50536067
Output for 5.3.8
531f2ebb0c9f6 x531f2ebb0ca98 x531f2ebb0cab00.42927985
Output for 5.3.7
531f2ebb18048 x531f2ebb184ba x531f2ebb185a58.81727349
Output for 5.3.6
531f2ebb2457e x531f2ebb24604 x531f2ebb246180.65823302
Output for 5.3.5
531f2ebb30127 x531f2ebb3019d x531f2ebb301b95.01257541
Output for 5.3.4
531f2ebb3e9d9 x531f2ebb3ea4b x531f2ebb3ea778.60009733
Output for 5.3.3
531f2ebb4c64f x531f2ebb4c6ea x531f2ebb4c7075.55201988
Output for 5.3.2
531f2ebb59c4c x531f2ebb59cd2 x531f2ebb59cef1.03650792
Output for 5.3.1
531f2ebb6893a x531f2ebb689c0 x531f2ebb689dd0.26159104
Output for 5.3.0
531f2ebb7ab81 x531f2ebb7ac09 x531f2ebb7ac2b4.22811478
Output for 5.2.17
531f2ebb87da5 x531f2ebb87e37 x531f2ebb87e612.59432796
Output for 5.2.16
531f2ebb9402f x531f2ebb940b5 x531f2ebb940cf8.55120154
Output for 5.2.15
531f2ebba0d8c x531f2ebba0e11 x531f2ebba0e2b2.01112222
Output for 5.2.14
531f2ebbad337 x531f2ebbad3c6 x531f2ebbad3e36.53060673
Output for 5.2.13
531f2ebbb905e x531f2ebbb90f0 x531f2ebbb91048.41293779
Output for 5.2.12
531f2ebbc4904 x531f2ebbc498b x531f2ebbc49a66.59357040
Output for 5.2.11
531f2ebbcfec4 x531f2ebbcff4c x531f2ebbcff671.50117304
Output for 5.2.10
531f2ebbdbe8e x531f2ebbdbf1c x531f2ebbdbf426.75952068
Output for 5.2.9
531f2ebbe89e8 x531f2ebbe8a7f x531f2ebbe8a928.10308106
Output for 5.2.8
531f2ebc00e7e x531f2ebc00f0e x531f2ebc00f1f3.37046768
Output for 5.2.7
531f2ebc0cf7e x531f2ebc0d005 x531f2ebc0d01e2.82848509
Output for 5.2.6
531f2ebc18e8e x531f2ebc18f1b x531f2ebc18f379.48113797
Output for 5.2.5
531f2ebc25a9a x531f2ebc25b1e x531f2ebc25b4c3.77075756
Output for 5.2.4
531f2ebc31c33 x531f2ebc31cd1 x531f2ebc31cee9.20705324
Output for 5.2.3
531f2ebc3c2e3 x531f2ebc3c342 x531f2ebc3c3550.25856248
Output for 5.2.2
531f2ebc458c7 x531f2ebc45941 x531f2ebc459548.16465534
Output for 5.2.1
531f2ebc5026b x531f2ebc5031f x531f2ebc503343.76808573
Output for 5.2.0
531f2ebc5992b x531f2ebc599ca x531f2ebc599eb7.31138525
Output for 5.1.6
531f2ebc614f4 x531f2ebc61575 x531f2ebc615895.46548308
Output for 5.1.5
531f2ebc6924a x531f2ebc692d1 x531f2ebc692eb9.12486285
Output for 5.1.4
531f2ebc72f81 x531f2ebc73014 x531f2ebc730360.42812243
Output for 5.1.3
531f2ebc7c8b0 x531f2ebc7c941 x531f2ebc7c9629.32379665
Output for 5.1.2
531f2ebc867b3 x531f2ebc86844 x531f2ebc868679.14703605
Output for 5.1.1
531f2ebc92d02 x531f2ebc92d8e x531f2ebc92db04.72941118
Output for 5.1.0
531f2ebc9e0ca x531f2ebc9e170 x531f2ebc9e1aa5.01081959
Output for 5.0.5
531f2ebca72c9 x531f2ebca7357 x531f2ebca73772.53829060
Output for 5.0.4
531f2ebcb0a9a x531f2ebcb0b24 x531f2ebcb0b4a7.10871210
Output for 5.0.3
531f2ebcc5d13 x531f2ebcc5da2 x531f2ebcc5dc06.02421000
Output for 5.0.2
531f2ebcce322 x531f2ebcce39f x531f2ebcce3b11.76265367
Output for 5.0.1
531f2ebcd583d x531f2ebcd58cc x531f2ebcd58e87.93960995
Output for 5.0.0
531f2ebce1654 x531f2ebce16ce x531f2ebce16e03.08914117
Output for 4.4.9
Warning: uniqid() expects at least 1 parameter, 0 given in /in/vu1aq on line 3 x531f2ebce66a7 x531f2ebce66bd2.34754260
Output for 4.4.8
Warning: uniqid() expects at least 1 parameter, 0 given in /in/vu1aq on line 3 x531f2ebced1c6 x531f2ebced1e73.78606168
Output for 4.4.7
Warning: uniqid() expects at least 1 parameter, 0 given in /in/vu1aq on line 3 x531f2ebcf2b8d x531f2ebcf2ba37.94333019
Output for 4.4.6
Warning: uniqid() expects at least 1 parameter, 0 given in /in/vu1aq on line 3 x531f2ebd0541d x531f2ebd054548.97443806
Output for 4.4.5
Warning: uniqid() expects at least 1 parameter, 0 given in /in/vu1aq on line 3 x531f2ebd0b9e4 x531f2ebd0ba077.73235788
Output for 4.4.4
Warning: uniqid() expects at least 1 parameter, 0 given in /in/vu1aq on line 3 x531f2ebd15136 x531f2ebd1515e1.13430588
Output for 4.4.3
Warning: uniqid() expects at least 1 parameter, 0 given in /in/vu1aq on line 3 x531f2ebd1bf93 x531f2ebd1bfa90.29730650
Output for 4.4.2
Warning: uniqid() expects at least 1 parameter, 0 given in /in/vu1aq on line 3 x531f2ebd240e0 x531f2ebd240f58.56227354
Output for 4.4.1
Warning: uniqid() expects at least 1 parameter, 0 given in /in/vu1aq on line 3 x531f2ebd2a6ad x531f2ebd2a6d02.74840753
Output for 4.4.0
Warning: uniqid() expects at least 1 parameter, 0 given in /in/vu1aq on line 3 x531f2ebd34e91 x531f2ebd34eb56.85188677
Output for 4.3.11
Warning: uniqid() expects at least 1 parameter, 0 given in /in/vu1aq on line 3 x531f2ebd3b7ea x531f2ebd3b8094.32953514
Output for 4.3.10
Warning: uniqid() expects at least 1 parameter, 0 given in /in/vu1aq on line 3 x531f2ebd421cb x531f2ebd421eb3.13616278
Output for 4.3.9
Warning: uniqid() expects at least 1 parameter, 0 given in /in/vu1aq on line 3 x531f2ebd4939f x531f2ebd493da4.81001313
Output for 4.3.8
Warning: uniqid() expects at least 1 parameter, 0 given in /in/vu1aq on line 3 x531f2ebd5300e x531f2ebd531c65.93905431
Output for 4.3.7
Warning: uniqid() expects at least 1 parameter, 0 given in /in/vu1aq on line 3 x531f2ebd59b74 x531f2ebd59b917.42284836
Output for 4.3.6
Warning: uniqid() expects at least 1 parameter, 0 given in /in/vu1aq on line 3 x531f2ebd5ef6f x531f2ebd5ef866.85602706
Output for 4.3.5
Warning: uniqid() expects at least 1 parameter, 0 given in /in/vu1aq on line 3 x531f2ebd63e15 x531f2ebd63e2a7.27813331
Output for 4.3.4
Warning: uniqid() expects at least 1 parameter, 0 given in /in/vu1aq on line 3 x531f2ebd6cf36 x531f2ebd6d1b37.01098705
Output for 4.3.3
Warning: uniqid() expects at least 1 parameter, 0 given in /in/vu1aq on line 3 x531f2ebd74d7c x531f2ebd74d975.75742703
Output for 4.3.2
Warning: uniqid() expects at least 1 parameter, 0 given in /in/vu1aq on line 3 x531f2ebd7a6d0 x531f2ebd7a6f40.62603194
Output for 4.3.1
Warning: uniqid() expects at least 1 parameter, 0 given in /in/vu1aq on line 3 x531f2ebd803ff x531f2ebd804140.48044953
Output for 4.3.0
Warning: uniqid() expects at least 1 parameter, 0 given in /in/vu1aq on line 3 x55f199e3841ec x55f199e3842138.48712852