3v4l.org

run code in 300+ PHP versions simultaneously
<?php function guidv4() { $data = openssl_random_pseudo_bytes(16); $data[6] = chr(ord($data[6]) & 0x0f | 0x40); // set version to 0010 $data[8] = chr(ord($data[8]) & 0x3f | 0x80); // set bits 6-7 to 10 return vsprintf('%s%s-%s-%s-%s-%s%s%s', str_split(bin2hex($data), 4)); } echo guidv4(); ?>

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.40.0100.00718.85
8.3.30.0060.00919.05
8.3.20.0080.00020.33
8.3.10.0040.00423.66
8.3.00.0090.00317.63
8.2.170.0110.00422.96
8.2.160.0070.00720.46
8.2.150.0040.00424.18
8.2.140.0070.00024.66
8.2.130.0140.00426.16
8.2.120.0080.00022.15
8.2.110.0040.00422.05
8.2.100.0030.00917.72
8.2.90.0030.00619.00
8.2.80.0050.00318.04
8.2.70.0000.00817.63
8.2.60.0070.00017.93
8.2.50.0060.00318.07
8.2.40.0080.00018.09
8.2.30.0040.00417.96
8.2.20.0040.00417.60
8.2.10.0050.00217.95
8.2.00.0060.00317.61
8.1.270.0080.00023.91
8.1.260.0050.00326.35
8.1.250.0020.00528.09
8.1.240.0000.00923.77
8.1.230.0110.00018.95
8.1.220.0090.00017.74
8.1.210.0000.00818.77
8.1.200.0050.00517.23
8.1.190.0000.00817.29
8.1.180.0080.00018.10
8.1.170.0030.00618.59
8.1.160.0040.00421.98
8.1.150.0050.00318.59
8.1.140.0000.00717.28
8.1.130.0000.00717.70
8.1.120.0030.00317.34
8.1.110.0070.00317.38
8.1.100.0050.00517.36
8.1.90.0040.00317.27
8.1.80.0000.00817.36
8.1.70.0030.00617.24
8.1.60.0040.00417.63
8.1.50.0000.00817.38
8.1.40.0060.00317.50
8.1.30.0000.00817.56
8.1.20.0000.00817.66
8.1.10.0000.00717.53
8.1.00.0040.00417.39
8.0.300.0070.00018.77
8.0.290.0040.00417.18
8.0.280.0050.00318.42
8.0.270.0070.00017.27
8.0.260.0080.00017.27
8.0.250.0000.00616.87
8.0.240.0000.00716.98
8.0.230.0070.00017.03
8.0.220.0020.00516.82
8.0.210.0020.00516.94
8.0.200.0000.00716.90
8.0.190.0000.00816.89
8.0.180.0000.00916.93
8.0.170.0040.00416.86
8.0.160.0030.00516.96
8.0.150.0000.00816.82
8.0.140.0000.00716.79
8.0.130.0000.00713.41
8.0.120.0040.00416.78
8.0.110.0070.00016.82
8.0.100.0030.00516.93
8.0.90.0000.00716.82
8.0.80.0130.00916.86
8.0.70.0050.00216.93
8.0.60.0000.00716.92
8.0.50.0040.00416.81
8.0.30.0060.01216.99
8.0.20.0130.00517.40
8.0.10.0000.00816.85
8.0.00.0070.01016.71
7.4.330.0050.00015.00
7.4.320.0060.00016.31
7.4.300.0050.00316.42
7.4.290.0000.00716.48
7.4.280.0000.00716.59
7.4.270.0080.00016.49
7.4.260.0040.00416.39
7.4.250.0000.00716.47
7.4.240.0020.00516.53
7.4.230.0000.00716.45
7.4.220.0030.01216.53
7.4.210.0050.01016.54
7.4.200.0040.00416.38
7.4.190.0000.00716.33
7.4.160.0130.00316.26
7.4.150.0080.01217.40
7.4.140.0110.00917.86
7.4.130.0100.00616.42
7.4.120.0090.00816.53
7.4.110.0120.00616.52
7.4.100.0090.00916.32
7.4.90.0150.00416.45
7.4.80.0110.00719.39
7.4.70.0170.00716.61
7.4.60.0100.00716.27
7.4.50.0000.00816.69
7.4.40.0070.00722.77
7.4.30.0130.00216.52
7.3.330.0050.00013.18
7.3.320.0030.00313.30
7.3.310.0040.00416.28
7.3.300.0030.00316.23
7.3.290.0070.00716.35
7.3.280.0100.00916.33
7.3.270.0100.00717.40
7.3.260.0110.00816.59
7.3.250.0070.01016.26
7.3.240.0100.00616.20
7.3.230.0060.01216.39
7.3.210.0100.01016.33
7.3.200.0140.00619.39
7.3.190.0060.00916.52
7.3.180.0040.01216.18
7.3.170.0060.01016.47
7.3.160.0130.00316.32
7.2.330.0150.00316.56
7.2.320.0140.00616.59
7.2.310.0120.00916.33
7.2.300.0000.01716.52
7.2.290.0110.00616.24
7.1.70.0030.00617.42
7.1.60.0160.01019.46
7.1.50.0130.01317.07
7.1.00.0000.08022.48
7.0.200.0000.00716.54
7.0.140.0170.06022.12
7.0.70.0070.06721.73
7.0.60.0030.08321.89
7.0.50.0100.07022.23
7.0.40.0100.08320.13
7.0.30.0030.08320.14
7.0.20.0030.08720.10
7.0.10.0070.04720.14
7.0.00.0030.06020.12
5.6.280.0030.07320.89
5.6.220.0030.06020.71
5.6.210.0100.08020.68
5.6.200.0030.08321.05
5.6.190.0030.06721.07
5.6.180.0030.09021.07
5.6.170.0000.09021.00
5.6.160.0000.04321.00
5.6.150.0170.07320.97
5.6.140.0130.07721.14
5.6.130.0100.08020.95
5.6.120.0130.08021.08
5.6.110.0100.04321.03
5.6.100.0100.05021.07
5.6.90.0000.09020.99
5.6.80.0100.07720.54
5.6.70.0070.05020.59
5.6.60.0030.08720.53
5.6.50.0030.08020.49
5.6.40.0100.06720.52
5.6.30.0100.07320.30
5.6.20.0070.07320.39
5.6.10.0100.07020.50
5.6.00.0000.08320.42
5.5.360.0070.07020.43
5.5.350.0100.07720.46
5.5.340.0030.08720.77
5.5.330.0070.06720.80
5.5.320.0100.08020.87
5.5.310.0070.08020.90
5.5.300.0130.07320.87
5.5.290.0000.06720.79
5.5.280.0070.08720.82
5.5.270.0000.06720.76
5.5.260.0070.05720.76
5.5.250.0170.07320.70
5.5.240.0000.08320.32
5.5.230.0000.06720.18
5.5.220.0070.08020.33
5.5.210.0100.08020.02
5.5.200.0030.06720.21
5.5.190.0070.07320.16
5.5.180.0070.06720.27
5.5.160.0070.06020.28
5.5.150.0070.07320.30
5.5.140.0030.08719.99
5.5.130.0070.07720.27
5.5.120.0070.06020.21
5.5.110.0030.04720.30
5.5.100.0100.07720.21
5.5.90.0100.07320.18
5.5.80.0100.06720.15
5.5.70.0030.07720.12
5.5.60.0070.07320.04
5.5.50.0030.05720.12
5.5.40.0030.07720.01
5.5.30.0000.08720.11
5.5.20.0070.08020.03
5.5.10.0130.07320.10
5.5.00.0000.07720.07
5.4.450.0070.08319.43
5.4.440.0130.07019.36
5.4.430.0070.08019.41
5.4.420.0000.08319.46
5.4.410.0000.07019.23
5.4.400.0070.07719.23
5.4.390.0100.04319.24
5.4.380.0030.05719.22
5.4.370.0070.06719.05
5.4.360.0070.07719.27
5.4.350.0000.06018.92
5.4.340.0030.05719.19
5.4.320.0070.07319.23
5.4.310.0100.07319.24
5.4.300.0100.07318.91
5.4.290.0100.07019.27
5.4.280.0000.08019.18
5.4.270.0100.07019.15
5.4.260.0070.06019.04
5.4.250.0000.08019.18
5.4.240.0130.04318.89
5.4.230.0030.08019.27
5.4.220.0000.08319.13
5.4.210.0030.07718.90
5.4.200.0030.08318.91
5.4.190.0070.06718.90
5.4.180.0100.07319.21
5.4.170.0030.07318.90
5.4.160.0070.06019.20
5.4.150.0030.08019.13
5.4.140.0130.07016.25
5.4.130.0000.07716.41
5.4.120.0000.07716.45
5.4.110.0030.04716.43
5.4.100.0000.05016.43
5.4.90.0070.07716.38
5.4.80.0030.06016.45
5.4.70.0070.07316.45
5.4.60.0030.07316.40
5.4.50.0030.06316.40
5.4.40.0130.04016.45
5.4.30.0200.06016.48
5.4.20.0000.07016.27
5.4.10.0030.08016.38
5.4.00.0030.07015.87
5.3.290.0030.08014.58
5.3.280.0000.08014.65
5.3.270.0000.08014.58
5.3.260.0000.08014.62
5.3.250.0000.08014.59
5.3.240.0030.08014.72
5.3.230.0030.05314.72
5.3.220.0000.06014.65
5.3.210.0100.07014.59
5.3.200.0000.06014.61
5.3.190.0070.07314.49
5.3.180.0030.06014.63
5.3.170.0030.07314.65
5.3.160.0070.06314.68
5.3.150.0000.06714.57
5.3.140.0070.07314.50
5.3.130.0070.07714.65
5.3.120.0070.07714.68
5.3.110.0070.07014.51
5.3.100.0000.08013.99
5.3.90.0000.05013.95
5.3.80.0000.07014.00
5.3.70.0030.07314.04
5.3.60.0070.07014.06
5.3.50.0030.07313.95
5.3.40.0100.05713.88
5.3.30.0030.06713.99
5.3.20.0030.04013.80
5.3.10.0000.05713.56
5.3.00.0070.07013.70
5.2.170.0000.06312.12
5.2.160.0070.05712.12
5.2.150.0100.05012.12
5.2.140.0000.05312.12
5.2.130.0000.06012.12
5.2.120.0070.05312.12
5.2.110.0030.06012.12
5.2.100.0070.05712.12
5.2.90.0070.05712.12
5.2.80.0030.05712.12
5.2.70.0030.05712.12
5.2.60.0000.06012.12
5.2.50.0030.06312.12
5.2.40.0070.05312.12
5.2.30.0000.06312.12
5.2.20.0030.06312.12
5.2.10.0070.05712.12
5.2.00.0070.05712.12
5.1.60.0030.05012.12
5.1.50.0070.04712.12
5.1.40.0030.05312.12
5.1.30.0070.03312.12
5.1.20.0030.05312.12
5.1.10.0030.05012.12
5.1.00.0030.05012.12
5.0.50.0000.04012.12
5.0.40.0000.04312.12
5.0.30.0070.06312.12
5.0.20.0030.04312.12
5.0.10.0030.04712.12
5.0.00.0000.05012.12
4.4.90.0000.03312.12
4.4.80.0000.04012.12
4.4.70.0070.02012.12
4.4.60.0000.04012.12
4.4.50.0000.03712.12
4.4.40.0000.05712.12
4.4.30.0030.03712.12
4.4.20.0000.03712.12
4.4.10.0000.03712.12
4.4.00.0030.05312.12
4.3.110.0000.03712.12
4.3.100.0000.03312.12
4.3.90.0000.03012.12
4.3.80.0000.05312.12
4.3.70.0000.02312.12
4.3.60.0000.03312.12
4.3.50.0000.03012.12
4.3.40.0000.05712.12
4.3.30.0030.02312.12
4.3.20.0000.03712.12
4.3.10.0000.03712.12
4.3.00.0000.03012.12

preferences:
36.47 ms | 400 KiB | 5 Q