3v4l.org

run code in 300+ PHP versions simultaneously
<?php function uuid($c = 4) { $x = function($c) { for ($n = ''; strlen($n) < $c + 1; $n = $n.mt_rand()); return substr($n, -$c); }; return sprintf( '%s-%04d-%04d-%04d-%04d%04d%04d', time(), $x($c), $x($c), $x($c), $x($c), $x($c), $x($c), $x($c) ); } echo uuid();

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)
7.4.10.0080.01116.47
7.4.00.0120.00715.68
7.3.130.0000.01716.29
7.3.120.0070.01015.51
7.3.110.0080.00515.61
7.3.100.0050.01015.76
7.3.90.0090.00615.78
7.3.80.0070.00915.50
7.3.70.0070.00715.45
7.3.60.0070.00415.63
7.3.50.0070.00715.66
7.3.40.0060.00815.42
7.3.30.0050.00615.56
7.3.20.0020.01117.37
7.3.10.0090.00217.12
7.3.00.0060.00617.20
7.2.260.0150.00316.48
7.2.250.0070.01115.95
7.2.240.0130.00615.84
7.2.230.0050.01015.83
7.2.220.0030.01015.90
7.2.210.0110.00415.72
7.2.200.0060.00915.86
7.2.190.0100.00515.62
7.2.180.0070.01015.86
7.2.170.0100.00615.80
7.2.160.0030.00916.55
7.2.150.0070.01018.38
7.2.140.0030.01318.44
7.2.130.0050.00717.54
7.2.120.0040.00817.55
7.2.110.0070.00717.23
7.2.100.0040.00817.32
7.2.90.0030.01117.26
7.2.80.0060.00917.29
7.2.70.0060.01017.45
7.2.60.0090.00417.46
7.2.50.0050.01017.37
7.2.40.0070.00817.30
7.2.30.0060.00917.31
7.2.20.0040.00917.28
7.2.10.0060.00917.30
7.2.00.0060.00717.89
7.1.330.0030.00816.49
7.1.320.0070.00716.52
7.1.310.0050.00616.38
7.1.300.0040.01116.62
7.1.290.0080.00716.39
7.1.280.0080.00816.54
7.1.270.0050.00716.43
7.1.260.0030.01216.41
7.1.250.0070.00716.54
7.1.240.0100.00717.33
7.1.230.0030.00816.40
7.1.220.0050.00616.43
7.1.210.0120.00316.57
7.1.200.0100.00516.65
7.1.190.0100.00516.55
7.1.180.0060.00516.52
7.1.170.0020.01016.55
7.1.160.0060.00516.57
7.1.150.0050.01016.47
7.1.140.0070.00516.43
7.1.130.0080.00716.61
7.1.120.0040.00916.48
7.1.110.0050.01016.46
7.1.100.0050.00716.66
7.1.90.0070.00516.57
7.1.80.0040.00916.53
7.1.70.0050.00616.76
7.1.60.0080.01117.51
7.1.50.0060.01116.75
7.1.40.0100.00516.49
7.1.30.0090.00716.51
7.1.20.0070.00916.41
7.1.10.0060.00616.44
7.1.00.0060.03018.46
7.0.330.0040.01116.91
7.0.320.0000.01417.18
7.0.310.0090.00716.07
7.0.300.0050.01016.18
7.0.290.0060.00816.30
7.0.280.0020.01216.05
7.0.270.0000.01016.11
7.0.260.0090.00616.20
7.0.250.0050.01016.19
7.0.240.0080.00516.31
7.0.230.0030.01016.29
7.0.220.0020.00916.23
7.0.210.0080.00716.20
7.0.200.0030.00716.40
7.0.190.0050.00716.12
7.0.180.0070.00516.28
7.0.170.0090.00616.31
7.0.160.0070.00716.29
7.0.150.0050.00816.12
7.0.140.0060.02718.23
7.0.130.0050.00916.31
7.0.120.0040.01116.27
7.0.110.0140.03117.42
7.0.100.0080.03317.36
7.0.90.0100.02717.52
7.0.80.0060.03317.44
7.0.70.0080.02917.45
7.0.60.0080.03117.45
7.0.50.0030.02317.68
7.0.40.0050.03316.13
7.0.30.0100.02916.29
7.0.20.0090.02116.09
7.0.10.0090.02916.17
7.0.00.0050.02116.27
5.6.400.0030.01215.84
5.6.390.0030.01315.83
5.6.380.0020.01115.11
5.6.370.0080.00415.22
5.6.360.0090.00415.13
5.6.350.0050.00915.29
5.6.340.0050.00915.07
5.6.330.0050.00815.17
5.6.320.0070.00715.28
5.6.310.0050.00714.77
5.6.300.0060.00914.98
5.6.290.0080.00515.23
5.6.280.0040.02716.97
5.6.270.0090.00515.17
5.6.260.0040.01115.00
5.6.250.0060.03216.89
5.6.240.0050.03216.94
5.6.230.0060.03616.87
5.6.220.0110.02916.90
5.6.210.0060.02116.92
5.6.200.0080.03017.06
5.6.190.0070.03017.09
5.6.180.0050.03317.12
5.6.170.0050.03517.19
5.6.160.0050.03316.99
5.6.150.0080.03116.97
5.6.140.0050.03317.14
5.6.130.0040.03617.18
5.6.120.0100.02617.01
5.6.110.0060.03417.00
5.6.100.0060.03317.13
5.6.90.0040.03217.15
5.6.80.0060.03216.76
5.6.70.0060.03016.82
5.6.60.0090.03216.82
5.6.50.0060.03216.83
5.6.40.0100.02716.93
5.6.30.0080.02916.79
5.6.20.0060.02216.82
5.6.10.0060.03216.89
5.6.00.0110.02916.83
5.5.380.0090.02916.02
5.5.370.0030.03316.00
5.5.360.0040.03315.94
5.5.350.0070.03116.08
5.5.340.0080.02916.23
5.5.330.0070.02816.24
5.5.320.0040.02816.18
5.5.310.0050.03116.14
5.5.300.0060.03016.23
5.5.290.0090.02516.20
5.5.280.0070.03216.20
5.5.270.0090.02916.13
5.5.260.0070.02316.21
5.5.250.0060.03216.16
5.5.240.0030.03315.92
5.5.230.0060.03016.02
5.5.220.0070.03015.89
5.5.210.0030.03115.96
5.5.200.0070.03315.99
5.5.190.0050.03015.95
5.5.180.0080.01615.96
5.5.170.0050.00914.93
5.5.160.0050.02215.99
5.5.150.0070.03015.85
5.5.140.0110.02815.97
5.5.130.0070.03015.86
5.5.120.0080.03016.00
5.5.110.0060.03215.98
5.5.100.0010.03415.89
5.5.90.0030.03015.89
5.5.80.0030.03415.90
5.5.70.0010.03415.84
5.5.60.0040.03215.81
5.5.50.0030.03015.95
5.5.40.0040.03315.94
5.5.30.0070.02015.80
5.5.20.0050.02516.00
5.5.10.0050.03215.97
5.5.00.0050.02315.87
5.4.450.0050.03314.72
5.4.440.0060.02014.78
5.4.430.0060.03114.67
5.4.420.0010.03414.68
5.4.410.0040.02814.63
5.4.400.0030.03114.59
5.4.390.0070.03014.67
5.4.380.0050.03114.48
5.4.370.0080.02814.47
5.4.360.0050.03114.60
5.4.350.0060.01214.61
5.4.340.0080.02814.71
5.4.330.0020.00712.27
5.4.320.0050.02814.62
5.4.310.0030.03114.58
5.4.300.0070.02714.53
5.4.290.0050.02014.49
5.4.280.0000.03314.56
5.4.270.0060.02814.61
5.4.260.0060.02914.59
5.4.250.0060.02814.59
5.4.240.0060.02614.53
5.4.230.0050.03014.56
5.4.220.0040.02714.55
5.4.210.0050.03014.71
5.4.200.0070.02714.50
5.4.190.0080.02514.49
5.4.180.0080.02714.52
5.4.170.0080.02514.63
5.4.160.0060.02314.49
5.4.150.0080.01614.50
5.4.140.0070.02713.71
5.4.130.0070.01613.74
5.4.120.0070.02713.62
5.4.110.0070.02313.66
5.4.100.0050.02613.63
5.4.90.0050.01913.79
5.4.80.0040.02213.74
5.4.70.0050.02513.76
5.4.60.0060.02713.66
5.4.50.0050.02713.67
5.4.40.0080.02613.71
5.4.30.0040.02713.63
5.4.20.0070.02513.68
5.4.10.0050.02613.68
5.4.00.0030.02913.45
5.3.290.0030.04213.33
5.3.280.0110.03313.32
5.3.270.0080.04213.22
5.3.260.0070.02213.40
5.3.250.0030.04113.36
5.3.240.0070.04013.27
5.3.230.0050.03713.29
5.3.220.0100.03813.34
5.3.210.0080.03713.33
5.3.200.0030.03713.38
5.3.190.0090.03713.34
5.3.180.0080.03713.38
5.3.170.0070.03713.33
5.3.160.0060.03713.26
5.3.150.0050.03913.27
5.3.140.0060.03513.33
5.3.130.0090.03813.25
5.3.120.0080.03813.32
5.3.110.0050.04213.33
5.3.100.0070.03213.02
5.3.90.0070.03813.00
5.3.80.0100.03312.98
5.3.70.0050.04013.03
5.3.60.0100.03513.00
5.3.50.0090.03812.97
5.3.40.0070.03512.97
5.3.30.0070.03813.01
5.3.20.0080.03512.90
5.3.10.0060.03712.74
5.3.00.0050.02712.84
5.2.170.0020.03612.19
5.2.160.0020.03512.19
5.2.150.0050.03112.19
5.2.140.0050.03312.19
5.2.130.0030.03412.19
5.2.120.0050.03012.19
5.2.110.0020.03412.19
5.2.100.0050.03012.19
5.2.90.0020.03512.19
5.2.80.0020.03412.19
5.2.70.0070.03012.19
5.2.60.0030.03212.19
5.2.50.0100.02512.19
5.2.40.0030.03212.19
5.2.30.0050.03012.19
5.2.20.0080.01712.19
5.2.10.0050.03512.19
5.2.00.0050.03112.19
5.1.60.0030.02312.19
5.1.50.0030.03012.19
5.1.40.0050.02312.19
5.1.30.0030.03512.19
5.1.20.0000.03512.19
5.1.10.0070.02812.19
5.1.00.0050.03012.19
5.0.50.0000.02512.19
5.0.40.0050.01212.19
5.0.30.0060.03012.19
5.0.20.0030.01812.19
5.0.10.0030.02312.19
5.0.00.0030.02812.19
4.4.90.0020.01912.19
4.4.80.0020.02012.19
4.4.70.0000.02012.19
4.4.60.0030.01112.19
4.4.50.0000.02312.19
4.4.40.0060.02512.19
4.4.30.0060.01512.19
4.4.20.0030.01812.19
4.4.10.0020.01312.19
4.4.00.0000.02712.19
4.3.110.0030.01512.19
4.3.100.0030.01012.19
4.3.90.0020.02012.19
4.3.80.0020.02012.19
4.3.70.0000.01212.19
4.3.60.0020.01912.19
4.3.50.0020.02012.19
4.3.40.0000.03112.19
4.3.30.0060.01512.19
4.3.20.0050.01612.19
4.3.10.0020.01812.19
4.3.00.0030.01712.19

preferences:
37.87 ms | 400 KiB | 5 Q