3v4l.org

run code in 300+ PHP versions simultaneously
<?php $i = 1000; $start = microtime(true); while ($i--) uniqid(); $elapsed = microtime(true) - $start; printf("%.3f\n", $elapsed * 1000); $i = 1000; $start = microtime(true); while ($i--) uniqid("", true); $elapsed = microtime(true) - $start; printf("%.3f\n", $elapsed * 1000);

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)
7.4.00.0070.01514.62
7.3.120.0150.00614.78
7.3.110.0030.01715.12
7.3.100.0000.01614.72
7.3.90.0040.00714.59
7.3.80.0120.00014.70
7.3.70.0030.01314.77
7.3.60.0000.01214.70
7.3.50.0100.00714.84
7.3.40.0080.01114.65
7.3.30.0090.00615.04
7.3.20.0030.01016.64
7.3.10.0060.00616.50
7.3.00.0000.01616.30
7.2.250.0130.00714.97
7.2.240.0100.01015.22
7.2.230.0080.01114.61
7.2.220.0030.01414.89
7.2.210.0040.01214.91
7.2.200.0070.01014.67
7.2.190.0090.00915.15
7.2.180.0100.00714.88
7.2.170.0090.00915.09
7.2.00.0060.00919.49
7.1.330.0140.01115.70
7.1.320.0060.01615.66
7.1.310.0040.01315.71
7.1.300.0000.02415.90
7.1.290.0040.01615.41
7.1.280.0040.01715.49
7.1.270.0090.01315.60
7.1.260.0080.01315.75
7.1.70.0030.00817.13
7.1.60.0270.00019.17
7.1.50.0090.01916.64
7.1.00.0000.04022.36
7.0.200.0090.00616.70
7.0.140.0100.07022.16
7.0.100.0200.07319.95
7.0.90.0330.08319.98
7.0.80.0400.08719.93
7.0.70.0370.07719.93
7.0.60.0370.08019.94
7.0.50.0370.09320.33
7.0.40.0170.07720.09
7.0.30.0130.08320.14
7.0.20.0100.09020.07
7.0.10.0070.09720.14
7.0.00.0130.07720.03
5.6.280.0030.08020.92
5.6.250.0100.08320.53
5.6.240.0070.06320.66
5.6.230.0070.09020.50
5.6.220.0200.07320.56
5.6.210.0070.08320.61
5.6.200.0230.06021.17
5.6.190.0130.08321.00
5.6.180.0130.08021.18
5.6.170.0070.08321.16
5.6.160.0130.08321.03
5.6.150.0100.08321.01
5.6.140.0100.05321.00
5.6.130.0170.07020.93
5.6.120.0170.08021.11
5.6.110.0170.07721.06
5.6.100.0300.06020.98
5.6.90.0100.07721.08
5.6.80.0130.05720.40
5.6.70.0030.08720.43
5.6.60.0270.07020.44
5.6.50.0230.06720.49
5.6.40.0100.08320.43
5.6.30.0100.07320.29
5.6.20.0200.06720.43
5.6.10.0100.08720.43
5.6.00.0100.08320.36
5.5.380.0100.07020.36
5.5.370.0130.08320.39
5.5.360.0100.08020.54
5.5.350.0300.06720.47
5.5.340.0070.07720.79
5.5.330.0130.07720.64
5.5.320.0070.09020.82
5.5.310.0200.04720.74
5.5.300.0170.07720.77
5.5.290.0130.06020.77
5.5.280.0100.05320.77
5.5.270.0070.09720.87
5.5.260.0030.09020.81
5.5.250.0130.08320.61
5.5.240.0070.08320.20
5.5.230.0100.08020.27
5.5.220.0170.07720.29
5.5.210.0130.08020.25
5.5.200.0100.07320.26
5.5.190.0100.08020.24
5.5.180.0100.07720.28
5.5.160.0100.06020.21
5.5.150.0100.08020.18
5.5.140.0130.08720.20
5.5.130.0130.08320.27
5.5.120.0070.08020.14
5.5.110.0300.07720.17
5.5.100.0030.08320.13
5.5.90.0100.07720.09
5.5.80.0100.08320.06
5.5.70.0030.09720.14
5.5.60.0130.07720.06
5.5.50.0100.04720.09
5.5.40.0100.07719.93
5.5.30.0170.07020.15
5.5.20.0100.08720.04
5.5.10.0270.06020.03
5.5.00.0200.07720.04
5.4.450.0170.05019.11
5.4.440.0000.07719.45
5.4.430.0170.07319.30
5.4.420.0070.08019.22
5.4.410.0070.09019.16
5.4.400.0070.08018.81
5.4.390.0070.08018.95
5.4.380.0070.07719.13
5.4.370.0130.07719.11
5.4.360.0100.07318.96
5.4.350.0070.08019.07
5.4.340.0200.07018.95
5.4.320.0130.07319.12
5.4.310.0100.07719.22
5.4.300.0100.08318.95
5.4.290.0070.08018.96
5.4.280.0100.08319.11
5.4.270.0170.07319.03
5.4.260.0070.08018.96
5.4.250.0070.07719.04
5.4.240.0070.07718.78
5.4.230.0030.09019.06
5.4.220.0130.07718.89
5.4.210.0000.08719.05
5.4.200.0100.08019.14
5.4.190.0000.09018.80
5.4.180.0000.07019.06
5.4.170.0130.07718.96
5.4.160.0170.06019.12
5.4.150.0130.07718.96
5.4.140.0130.07016.35
5.4.130.0070.08316.36
5.4.120.0070.07716.05
5.4.110.0070.08016.35
5.4.100.0130.06716.33
5.4.90.0070.04316.33
5.4.80.0030.04716.44
5.4.70.0130.03716.39
5.4.60.0130.03016.42
5.4.50.0100.03016.32
5.4.40.0070.06716.29
5.4.30.0070.06316.40
5.4.20.0030.03716.41
5.4.10.0100.05316.19
5.4.00.0070.03715.73
5.3.290.0200.07014.61
5.3.280.0070.08014.57
5.3.270.0130.06314.58
5.3.260.0200.07014.54
5.3.250.0130.06714.46
5.3.240.0170.06714.43
5.3.230.0000.09314.59
5.3.220.0070.08714.40
5.3.210.0000.07314.53
5.3.200.0030.07714.55
5.3.190.0100.05314.40
5.3.180.0100.04014.55
5.3.170.0070.04314.51
5.3.160.0030.04014.40
5.3.150.0030.04014.55
5.3.140.0070.04014.54
5.3.130.0030.05014.41
5.3.120.0070.05314.55
5.3.110.0000.04014.54
5.3.100.0030.04014.02
5.3.90.0070.05014.01
5.3.80.0030.04314.00
5.3.70.0030.05013.95
5.3.60.0100.03313.96
5.3.50.0070.03313.85
5.3.40.0070.03713.76
5.3.30.0000.04713.80
5.3.20.0030.03313.46
5.3.10.0030.03313.63
5.3.00.0100.03713.40
5.2.170.0100.02712.37
5.2.160.0000.03312.37
5.2.150.0030.03012.37
5.2.140.0000.03312.37
5.2.130.0030.03012.37
5.2.120.0070.04012.37
5.2.110.0130.01712.37
5.2.100.0000.03012.37
5.2.90.0030.06012.37
5.2.80.0030.03012.37
5.2.70.0000.03712.37
5.2.60.0000.07312.37
5.2.50.0100.06012.37
5.2.40.0070.05712.37
5.2.30.0170.06012.37
5.2.20.0130.05712.37
5.2.10.0070.04312.37
5.2.00.0100.06012.37
5.1.60.0030.05712.37
5.1.50.0070.05312.37
5.1.40.0100.05312.37
5.1.30.0100.05712.37
5.1.20.0100.05012.37
5.1.10.0000.04012.37
5.1.00.0070.04712.37
5.0.50.0030.04712.37
5.0.40.0070.04712.37
5.0.30.0070.06312.37
5.0.20.0170.02312.37
5.0.10.0070.04312.37
5.0.00.0070.06712.37
4.4.90.0070.03312.37
4.4.80.0070.03312.37
4.4.70.0030.03712.37
4.4.60.0030.03712.37
4.4.50.0000.03012.37
4.4.40.0000.04712.37
4.4.30.0000.02312.37
4.4.20.0000.02312.37
4.4.10.0000.02012.37
4.4.00.0000.03712.37
4.3.110.0030.02012.37
4.3.100.0030.01712.37
4.3.90.0000.03712.37
4.3.80.0030.05312.37
4.3.70.0000.02712.37
4.3.60.0000.03712.37
4.3.50.0030.03712.37
4.3.40.0030.05712.37
4.3.30.0000.04012.37
4.3.20.0000.03012.37
4.3.10.0030.03312.37
4.3.00.0070.02712.37

preferences:
39.58 ms | 400 KiB | 5 Q