3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = null; $bar = null; $what = $foo ?? $bar ?? 'DEFAULT'; var_dump($what);

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)
8.3.40.0120.00318.57
8.3.30.0110.00318.54
8.3.20.0040.00420.16
8.3.10.0040.00423.48
8.3.00.0000.00823.48
8.2.170.0070.00722.96
8.2.160.0130.00322.96
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0080.00021.11
8.2.120.0080.00026.35
8.2.110.0060.00620.45
8.2.100.0090.00317.78
8.2.90.0040.00419.14
8.2.80.0040.00417.97
8.2.70.0090.00017.38
8.2.60.0080.00017.80
8.2.50.0070.00318.07
8.2.40.0050.00322.32
8.2.30.0000.00720.62
8.2.20.0040.00417.60
8.2.10.0040.00417.92
8.2.00.0090.00018.07
8.1.270.0080.00020.20
8.1.260.0040.00428.09
8.1.250.0040.00428.09
8.1.240.0080.00422.03
8.1.230.0070.00420.88
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00617.23
8.1.190.0000.00817.10
8.1.180.0050.00318.10
8.1.170.0050.00318.45
8.1.160.0000.00720.66
8.1.150.0090.00018.80
8.1.140.0040.00419.61
8.1.130.0000.00717.63
8.1.120.0040.00417.43
8.1.110.0040.00417.30
8.1.100.0040.00417.27
8.1.90.0040.00417.38
8.1.80.0070.00017.35
8.1.70.0040.00417.41
8.1.60.0000.00717.39
8.1.50.0000.00817.41
8.1.40.0040.00417.46
8.1.30.0040.00417.41
8.1.20.0040.00417.46
8.1.10.0030.00617.50
8.1.00.0030.00617.48
8.0.300.0040.00418.77
8.0.290.0070.00016.63
8.0.280.0070.00018.41
8.0.270.0030.00317.18
8.0.260.0080.00017.22
8.0.250.0070.00016.89
8.0.240.0050.00316.85
8.0.230.0030.00316.79
8.0.220.0040.00416.80
8.0.210.0000.00816.84
8.0.200.0030.00316.86
8.0.190.0040.00416.87
8.0.180.0030.00616.89
8.0.170.0080.00016.84
8.0.160.0000.00716.70
8.0.150.0000.00716.63
8.0.140.0040.00716.79
8.0.130.0030.00613.25
8.0.120.0000.00816.76
8.0.110.0040.00416.75
8.0.100.0000.00716.70
8.0.90.0040.00416.69
8.0.80.0040.01116.70
8.0.70.0030.00616.76
8.0.60.0000.00716.69
8.0.50.0000.00816.75
8.0.30.0090.00716.98
8.0.20.0070.01217.40
8.0.10.0030.00316.82
8.0.00.0090.00916.71
7.4.330.0050.00016.84
7.4.320.0030.00316.42
7.4.300.0070.00016.44
7.4.290.0020.00516.48
7.4.280.0000.00816.52
7.4.270.0030.00316.52
7.4.260.0000.00716.43
7.4.250.0040.00416.55
7.4.240.0020.00516.48
7.4.230.0030.00316.53
7.4.220.0120.00416.55
7.4.210.0120.00916.47
7.4.200.0030.00316.60
7.4.160.0030.01716.21
7.4.150.0060.01217.40
7.4.140.0120.00617.86
7.4.130.0110.00816.40
7.4.120.0080.01416.27
7.4.110.0060.01616.58
7.4.100.0090.00916.45
7.4.90.0130.00416.43
7.4.80.0100.00719.39
7.4.70.0090.01216.55
7.4.60.0110.00616.41
7.4.50.0060.00916.33
7.4.40.0120.00616.50
7.4.30.0070.01516.57
7.4.10.0040.01416.40
7.4.00.0050.01015.63
7.3.330.0020.00212.92
7.3.320.0020.00312.95
7.3.310.0030.00616.16
7.3.300.0030.00316.28
7.3.290.0060.00816.18
7.3.280.0120.00716.19
7.3.270.0060.01017.40
7.3.260.0070.01416.21
7.3.250.0080.00916.41
7.3.240.0080.00916.39
7.3.230.0030.01716.39
7.3.210.0120.00616.48
7.3.200.0130.00316.11
7.3.190.0090.00616.30
7.3.180.0060.01116.50
7.3.170.0150.00616.27
7.3.160.0090.00616.06
7.3.130.0070.01016.33
7.3.120.0120.00616.10
7.3.110.0120.00316.41
7.3.100.0060.01016.29
7.3.90.0060.00916.37
7.3.80.0060.00916.38
7.3.70.0060.00616.26
7.3.60.0060.00316.16
7.3.50.0110.00416.18
7.3.40.0060.00616.10
7.3.30.0110.00416.09
7.3.20.0030.01017.81
7.3.10.0130.00317.75
7.3.00.0090.00517.18
7.2.330.0090.00916.66
7.2.320.0100.00716.36
7.2.310.0030.02116.35
7.2.300.0100.00716.58
7.2.290.0100.00616.20
7.2.260.0130.00616.45
7.2.250.0120.00916.25
7.2.240.0070.01016.21
7.2.230.0100.00716.23
7.2.220.0060.00916.59
7.2.210.0000.01216.09
7.2.200.0060.00616.51
7.2.190.0030.01016.31
7.2.180.0040.01116.48
7.2.170.0100.00316.37
7.2.160.0070.00716.30
7.2.150.0100.00718.22
7.2.140.0080.00418.27
7.2.130.0030.01217.36
7.2.120.0030.01017.47
7.2.110.0050.00917.27
7.2.100.0080.00817.42
7.2.90.0090.00617.39
7.2.80.0050.00817.09
7.2.70.0080.00817.30
7.2.60.0060.01017.18
7.2.50.0120.00617.32
7.2.40.0080.01017.40
7.2.30.0070.00717.49
7.2.20.0070.00917.25
7.2.10.0070.00917.45
7.2.00.0080.00817.98
7.1.330.0060.01317.30
7.1.320.0100.00317.22
7.1.310.0060.00617.16
7.1.300.0030.00717.27
7.1.290.0000.01017.34
7.1.280.0030.00917.07
7.1.270.0060.00617.32
7.1.260.0040.01117.15
7.1.250.0080.00516.48
7.1.240.0090.00516.27
7.1.230.0090.00216.37
7.1.220.0070.00716.45
7.1.210.0050.00716.41
7.1.200.0090.00516.17
7.1.190.0060.01016.25
7.1.180.0170.00016.23
7.1.170.0070.00716.52
7.1.160.0100.00816.35
7.1.150.0060.00616.35
7.1.140.0030.00816.27
7.1.130.0070.00716.29
7.1.120.0050.01216.49
7.1.110.0070.00916.54
7.1.100.0060.00716.96
7.1.90.0080.00616.32
7.1.80.0100.00516.38
7.1.70.0040.00816.66
7.1.60.0090.00517.50
7.1.50.0080.00816.51
7.1.40.0130.00316.34
7.1.30.0080.00516.44
7.1.20.0070.00816.46
7.1.10.0090.00716.34
7.1.00.0070.02918.38
7.0.330.0080.00615.90
7.0.320.0030.00715.86
7.0.310.0100.00715.92
7.0.300.0110.00415.76
7.0.290.0060.01215.96
7.0.280.0070.00716.02
7.0.270.0130.00415.90
7.0.260.0130.00816.12
7.0.250.0080.01016.16
7.0.240.0090.00915.96
7.0.230.0050.01016.04
7.0.220.0100.00616.21
7.0.210.0020.01016.04
7.0.200.0100.00416.14
7.0.190.0070.00816.03
7.0.180.0120.00115.76
7.0.170.0120.00115.83
7.0.160.0040.01115.93
7.0.150.0080.00315.99
7.0.140.0030.00915.96
7.0.130.0080.00516.09
7.0.120.0050.00816.05
7.0.110.0100.00516.04
7.0.100.0170.00616.12
7.0.90.0140.00616.16
7.0.80.0150.00616.17
7.0.70.0110.00515.90
7.0.60.0050.02417.23
7.0.50.0090.03116.60
7.0.40.0140.02916.04
7.0.30.0150.03016.20
7.0.20.0200.02616.09
7.0.10.0130.02016.19
7.0.00.0100.02016.24
5.6.400.0030.01015.52
5.6.390.0070.00715.81
5.6.380.0020.01214.75
5.6.370.0050.00714.99
5.6.360.0070.01014.92
5.6.350.0090.00914.69
5.6.340.0090.01014.79
5.6.330.0080.01014.99
5.6.320.0120.00514.92
5.6.310.0100.00814.75
5.6.300.0060.01114.84
5.6.290.0060.00314.68
5.6.280.0020.02417.02
5.6.270.0050.00514.99
5.6.260.0130.00514.98
5.6.250.0070.01515.00
5.6.240.0110.01014.83
5.6.230.0130.00614.86
5.6.220.0050.01414.94
5.6.210.0080.03216.71
5.6.200.0120.01416.15
5.6.190.0050.02116.83
5.6.180.0140.02916.68
5.6.170.0190.02716.79
5.6.160.0040.02916.66
5.6.150.0040.02015.88
5.6.140.0080.02115.83
5.6.130.0100.03215.78
5.6.120.0070.01716.79
5.6.110.0070.03316.90
5.6.100.0080.03316.78
5.6.90.0080.03016.69
5.6.80.0080.02516.64
5.6.70.0060.00814.67
5.6.60.0000.01514.80
5.6.50.0110.00514.62
5.6.40.0020.01414.62
5.6.30.0070.00614.41
5.6.20.0050.00814.64
5.6.10.0110.00614.91
5.6.00.0090.00914.72
5.5.380.0060.00813.16
5.5.370.0090.00513.28
5.5.360.0080.00313.36
5.5.350.0140.02715.67
5.5.340.0040.01914.77
5.5.330.0060.03215.58
5.5.320.0140.03215.55
5.5.310.0120.02315.56
5.5.300.0040.02414.83
5.5.290.0080.02214.88
5.5.280.0070.03215.84
5.5.270.0060.03315.66
5.5.260.0060.03115.73
5.5.250.0060.02815.68
5.5.240.0020.03215.55
5.5.230.0050.00813.19
5.5.220.0070.00313.15
5.5.210.0020.01013.18
5.5.200.0030.00813.15
5.5.190.0040.00713.17
5.5.180.0020.00713.08
5.5.170.0020.01113.19
5.5.160.0000.01413.13
5.5.150.0020.00913.19
5.5.140.0040.00613.17
5.5.130.0040.00713.15
5.5.120.0030.01113.29
5.5.110.0030.00613.16
5.5.100.0020.01113.22
5.5.90.0050.01013.23
5.5.80.0090.00613.21
5.5.70.0090.00513.26
5.5.60.0110.00513.23
5.5.50.0050.01113.26
5.5.40.0080.00613.22
5.5.30.0070.00713.23
5.5.20.0080.00813.18
5.5.10.0080.00613.23
5.5.00.0070.00713.25

preferences:
47.39 ms | 400 KiB | 5 Q