3v4l.org

run code in 300+ PHP versions simultaneously
<?php $username = $a ?? $b ?? 'nobody';

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)
8.3.60.0080.00616.59
8.3.50.0160.00321.99
8.3.40.0120.00318.68
8.3.30.0100.00318.59
8.3.20.0080.00020.04
8.3.10.0080.00021.64
8.3.00.0080.00023.52
8.2.180.0080.00816.38
8.2.170.0060.00922.96
8.2.160.0110.00319.32
8.2.150.0060.00324.18
8.2.140.0070.00024.66
8.2.130.0040.00419.70
8.2.120.0000.00726.35
8.2.110.0030.00622.27
8.2.100.0060.00617.92
8.2.90.0000.00719.05
8.2.80.0060.00317.97
8.2.70.0090.00317.50
8.2.60.0000.00917.55
8.2.50.0040.00418.07
8.2.40.0000.00722.07
8.2.30.0070.00019.41
8.2.20.0040.00417.67
8.2.10.0040.00418.04
8.2.00.0040.00417.98
8.1.280.0070.00725.92
8.1.270.0070.01023.78
8.1.260.0030.00528.09
8.1.250.0000.00728.09
8.1.240.0030.00623.84
8.1.230.0070.00319.01
8.1.220.0040.00417.74
8.1.210.0060.00318.77
8.1.200.0000.00817.10
8.1.190.0000.00817.22
8.1.180.0070.00718.10
8.1.170.0040.00418.39
8.1.160.0070.00020.60
8.1.150.0080.00018.85
8.1.140.0060.00319.50
8.1.130.0000.00717.61
8.1.120.0000.00717.32
8.1.110.0030.00617.38
8.1.100.0000.00717.43
8.1.90.0000.00917.35
8.1.80.0000.00717.30
8.1.70.0030.00317.31
8.1.60.0080.00017.41
8.1.50.0000.00817.35
8.1.40.0000.00817.41
8.1.30.0030.00617.51
8.1.20.0040.00417.45
8.1.10.0080.00017.54
8.1.00.0000.00917.48
8.0.300.0070.00018.77
8.0.290.0000.00716.58
8.0.280.0000.00718.37
8.0.270.0070.00017.19
8.0.260.0030.00317.18
8.0.250.0030.00316.76
8.0.240.0000.00616.92
8.0.230.0070.00016.80
8.0.220.0070.00016.71
8.0.210.0080.00016.71
8.0.200.0000.00716.75
8.0.190.0000.00716.87
8.0.180.0070.00016.86
8.0.170.0040.00416.70
8.0.160.0050.00316.84
8.0.150.0000.00716.81
8.0.140.0000.00816.70
8.0.130.0050.00013.14
8.0.120.0000.00816.77
8.0.110.0000.00816.85
8.0.100.0000.00716.91
8.0.90.0000.00716.81
8.0.80.0070.00716.80
8.0.70.0030.00516.86
8.0.60.0040.00416.64
8.0.50.0070.00016.84
8.0.30.0110.00616.84
8.0.20.0080.01117.40
8.0.10.0030.00516.81
8.0.00.0060.01316.74
7.4.330.0020.00216.82
7.4.320.0000.00716.43
7.4.300.0000.00716.34
7.4.290.0000.00716.52
7.4.280.0030.00616.42
7.4.270.0040.00416.53
7.4.260.0000.00716.41
7.4.250.0030.00516.49
7.4.240.0020.00516.44
7.4.230.0060.00016.32
7.4.220.0060.01216.48
7.4.210.0060.00916.56
7.4.200.0030.00316.55
7.4.160.0040.01216.35
7.4.150.0130.00517.40
7.4.140.0100.00817.86
7.4.130.0110.00716.37
7.4.120.0110.00616.36
7.4.110.0000.01616.37
7.4.100.0030.01616.46
7.4.90.0100.00716.27
7.4.80.0130.00719.39
7.4.70.0130.00316.38
7.4.60.0060.01016.27
7.4.50.0030.01016.28
7.4.40.0120.01016.27
7.4.30.0080.00816.37
7.4.00.0080.00714.60
7.3.330.0000.00813.17
7.3.320.0000.00613.12
7.3.310.0000.00716.15
7.3.300.0000.00716.21
7.3.290.0030.00315.97
7.3.280.0080.00916.20
7.3.270.0120.00417.40
7.3.260.0080.00816.10
7.3.250.0080.00916.40
7.3.240.0040.01316.28
7.3.230.0110.00616.39
7.3.210.0040.01216.32
7.3.200.0070.01119.39
7.3.190.0080.01016.26
7.3.180.0100.00616.49
7.3.170.0100.01016.27
7.3.160.0130.00316.37
7.3.120.0030.01414.77
7.3.110.0120.00614.53
7.3.100.0030.01214.72
7.3.90.0070.00414.69
7.3.80.0040.01114.38
7.3.70.0040.00414.65
7.3.60.0150.00014.71
7.3.50.0070.01314.54
7.3.40.0100.00314.57
7.3.30.0070.00714.61
7.3.20.0030.00616.23
7.3.10.0030.01116.54
7.3.00.0030.01116.49
7.2.330.0090.00916.18
7.2.320.0070.01016.65
7.2.310.0100.00616.66
7.2.300.0110.01116.56
7.2.290.0090.00616.25
7.2.250.0040.01115.11
7.2.240.0070.01114.70
7.2.230.0110.00414.81
7.2.220.0100.00014.94
7.2.210.0060.00914.74
7.2.200.0030.00914.98
7.2.190.0100.01014.93
7.2.180.0060.00914.62
7.2.170.0000.01214.96
7.2.130.0030.01216.63
7.2.120.0120.00616.64
7.2.110.0050.00916.75
7.2.100.0150.01216.57
7.2.90.0070.01316.76
7.2.80.0060.01816.49
7.2.70.0040.01516.58
7.2.60.0080.00416.50
7.2.50.0070.00716.54
7.2.40.0070.01016.64
7.2.30.0140.00316.76
7.2.20.0050.00516.44
7.2.10.0080.00816.70
7.2.00.0070.00618.09
7.1.330.0140.00015.50
7.1.320.0060.00315.65
7.1.310.0030.01015.63
7.1.300.0080.00815.26
7.1.290.0080.00515.76
7.1.280.0060.00615.61
7.1.270.0070.00715.41
7.1.260.0080.00515.58
7.1.250.0000.01515.18
7.1.200.0070.00715.28
7.1.100.0090.00617.96
7.1.70.0030.00516.73
7.1.60.0130.01019.30
7.1.50.0040.00716.77
7.1.00.0100.06722.48
7.0.200.0080.00816.67
7.0.60.0170.07721.63
7.0.50.0000.05317.80
7.0.40.0130.06320.20
7.0.30.0370.08320.04
7.0.20.0370.08020.16
7.0.10.0130.08320.00
7.0.00.0070.09020.00
5.6.280.0000.06020.89
5.6.210.0100.06320.56
5.6.200.0030.08018.29
5.6.190.0030.08320.48
5.6.180.0470.03720.33
5.6.170.0230.06720.55
5.6.160.0130.07720.39
5.6.150.0100.07718.16
5.6.140.0070.03718.14
5.6.130.0000.04318.15
5.6.120.0130.07020.99
5.6.110.0130.07321.10
5.6.100.0200.05321.00
5.6.90.0230.06021.07
5.6.80.0070.07020.37
5.5.350.0130.05020.31
5.5.340.0100.03718.04
5.5.330.0000.04720.27
5.5.320.0200.04020.30
5.5.310.0270.08020.23
5.5.300.0030.04718.03
5.5.290.0100.04017.94
5.5.280.0170.04720.88
5.5.270.0130.06020.75
5.5.260.0030.04020.64
5.5.250.0200.06720.57
5.5.240.0170.07320.24

preferences:
89.73 ms | 401 KiB | 5 Q