3v4l.org

run code in 300+ PHP versions simultaneously
<?php // $a is not set $b = 16; echo $a ?? 2; // outputs 2 echo $a ?? $b ?? 7; // outputs 16

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)
8.3.60.0070.01416.50
8.3.50.0140.00721.12
8.3.40.0070.01418.54
8.3.30.0110.00418.69
8.3.20.0000.00720.04
8.3.10.0080.00023.36
8.3.00.0030.00619.53
8.2.180.0000.02116.63
8.2.170.0000.01422.96
8.2.160.0100.00320.48
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0000.00817.38
8.2.110.0060.00322.12
8.2.100.0040.00817.63
8.2.90.0000.00919.09
8.2.80.0030.00617.97
8.2.70.0060.00317.50
8.2.60.0040.00417.80
8.2.50.0000.00918.07
8.2.40.0000.00719.05
8.2.30.0000.00919.72
8.2.20.0040.00417.55
8.2.10.0060.00318.00
8.2.00.0070.00017.98
8.1.280.0070.00725.92
8.1.270.0070.00720.20
8.1.260.0050.00226.35
8.1.250.0080.00028.09
8.1.240.0090.00022.50
8.1.230.0080.00417.42
8.1.220.0030.00617.74
8.1.210.0040.00418.77
8.1.200.0050.00517.35
8.1.190.0090.00017.10
8.1.180.0000.00918.10
8.1.170.0000.00818.55
8.1.160.0000.00721.95
8.1.150.0070.00018.73
8.1.140.0030.00717.26
8.1.130.0000.00717.62
8.1.120.0030.00317.42
8.1.110.0040.00417.26
8.1.100.0050.00317.22
8.1.90.0040.00417.38
8.1.80.0040.00417.45
8.1.70.0070.00017.34
8.1.60.0000.00917.41
8.1.50.0040.00417.47
8.1.40.0040.00417.38
8.1.30.0080.00017.48
8.1.20.0040.00417.46
8.1.10.0040.00417.52
8.1.00.0050.00217.46
8.0.300.0080.00018.77
8.0.290.0070.00016.63
8.0.280.0000.00718.32
8.0.270.0040.00417.17
8.0.260.0000.00617.18
8.0.250.0040.00417.00
8.0.240.0030.00317.00
8.0.230.0070.00016.87
8.0.220.0000.00716.86
8.0.210.0040.00416.81
8.0.200.0030.00316.77
8.0.190.0040.00416.76
8.0.180.0040.00416.78
8.0.170.0000.00716.90
8.0.160.0000.00716.88
8.0.150.0030.00316.71
8.0.140.0030.00316.80
8.0.130.0080.00013.26
8.0.120.0070.00016.79
8.0.110.0080.00016.71
8.0.100.0070.00016.78
8.0.90.0000.00716.77
8.0.80.0060.00916.78
8.0.70.0040.00416.70
8.0.60.0040.00416.64
8.0.50.0040.00416.85
8.0.30.0080.01017.05
8.0.20.0160.00717.40
8.0.10.0030.00516.84
8.0.00.0070.01016.61
7.4.330.0000.00615.08
7.4.320.0060.00016.46
7.4.300.0030.00316.43
7.4.290.0030.00316.43
7.4.280.0000.00816.32
7.4.270.0030.00316.43
7.4.260.0050.00316.54
7.4.250.0070.00016.52
7.4.240.0000.00716.48
7.4.230.0000.00716.63
7.4.220.0130.01316.48
7.4.210.0090.00616.47
7.4.200.0040.00416.54
7.4.160.0030.01316.41
7.4.150.0100.00717.40
7.4.140.0140.00817.86
7.4.130.0250.00316.41
7.4.120.0130.00516.48
7.4.110.0030.01416.61
7.4.100.0100.01016.35
7.4.90.0100.00716.34
7.4.80.0060.01119.39
7.4.70.0100.01016.53
7.4.60.0120.00916.51
7.4.50.0000.00616.30
7.4.40.0130.00316.48
7.4.30.0080.01116.48
7.4.00.0060.00614.71
7.3.330.0030.00513.09
7.3.320.0000.00513.18
7.3.310.0040.00416.07
7.3.300.0070.00016.24
7.3.290.0030.01216.25
7.3.280.0090.00616.22
7.3.270.0140.00517.40
7.3.260.0070.01116.46
7.3.240.0070.01016.29
7.3.230.0070.01016.39
7.3.210.0110.01316.54
7.3.200.0070.01016.18
7.3.190.0100.01016.16
7.3.180.0090.00616.18
7.3.170.0150.00316.28
7.3.160.0060.01316.11
7.3.10.0950.00014.74
7.2.330.0110.00716.32
7.2.320.0110.00716.65
7.2.310.0090.00616.64
7.2.300.0100.00716.61
7.2.290.0150.00716.63
7.2.60.0090.00616.51
7.1.200.0090.00315.32
7.1.100.0060.00618.03
7.1.70.0000.00716.98
7.1.60.0000.01217.11
7.1.50.0100.00316.53
7.1.40.0080.00416.30
7.1.30.0080.00516.43
7.1.20.0040.00716.67
7.1.10.0070.00416.51
7.1.00.0070.00716.42
7.0.200.0030.00516.75
7.0.190.0040.00416.75
7.0.180.0060.00316.07
7.0.170.0040.00716.13
7.0.160.0030.00716.38
7.0.150.0060.00616.38
7.0.140.0030.01016.14
7.0.130.0060.00616.53
7.0.120.0090.00316.47
7.0.110.0040.00716.45
7.0.100.0070.01016.32
7.0.90.0050.00516.25
7.0.80.0040.00816.23
7.0.70.0060.00916.32
7.0.60.0060.00616.04
7.0.50.0040.00716.43
7.0.40.0000.01014.61
7.0.30.0080.00614.61
7.0.20.0030.00514.61
7.0.10.0030.00514.61
7.0.00.0000.00814.61
5.6.300.0070.04320.66
5.6.290.0000.04920.82
5.6.280.0030.05320.93
5.6.270.0060.04521.05
5.6.260.0000.05421.04
5.6.250.0070.04421.03
5.6.240.0030.08720.83
5.6.230.0040.04620.93
5.6.220.0070.03720.83
5.6.210.0030.04220.93
5.6.200.0040.04620.89
5.6.190.0030.04120.95
5.6.180.0070.04020.76
5.6.170.0030.04320.95
5.6.160.0070.04321.01
5.6.150.0030.04120.91
5.6.140.0100.03721.00
5.6.130.0060.03820.68
5.6.120.0100.06220.80
5.6.110.0070.07920.80
5.6.100.0070.04320.83
5.6.90.0030.04120.88
5.6.80.0070.03720.37
5.6.70.0030.06220.23
5.6.60.0030.03820.11
5.6.50.0030.04820.33
5.6.40.0070.07320.20
5.6.30.0070.04020.14
5.6.20.0070.03720.16
5.6.10.0100.03220.17
5.6.00.0130.03520.14
5.5.380.0030.06917.50
5.5.370.0100.04317.52
5.5.360.0030.04717.51
5.5.350.0000.04217.55
5.5.340.0070.04917.75
5.5.330.0000.06518.00
5.5.320.0030.04018.13
5.5.310.0030.04918.11
5.5.300.0030.04017.74
5.5.290.0030.06118.10
5.5.280.0030.06318.11
5.5.270.0030.04117.76
5.5.260.0000.05018.12
5.5.250.0030.04317.99
5.5.240.0030.03817.42
5.5.230.0070.03617.51
5.5.220.0030.03717.46
5.5.210.0030.04417.46
5.5.200.0130.03317.38
5.5.190.0030.04117.10
5.5.180.0000.04917.12
5.5.160.0060.03717.36
5.5.150.0000.04017.12
5.5.140.0040.04417.53
5.5.130.0430.02617.09
5.5.120.0070.04517.49
5.5.110.0000.04317.48
5.5.100.0030.03917.35
5.5.90.0070.05117.02
5.5.80.0000.04317.35
5.5.70.0000.04317.37
5.5.60.0140.03417.10
5.5.50.0000.06217.24
5.5.40.0030.04117.34
5.5.30.0040.04017.37
5.5.20.0040.03917.28
5.5.10.0000.04817.07
5.5.00.0030.05417.32
5.4.450.0090.06919.41
5.4.440.0060.03819.32
5.4.430.0000.04519.43
5.4.420.0000.04419.21
5.4.410.0090.03819.18
5.4.400.0030.03719.14
5.4.390.0030.04019.11
5.4.380.0030.04019.10
5.4.370.0000.03918.87
5.4.360.0170.03818.92
5.4.350.0030.04918.98
5.4.340.0070.04718.98
5.4.320.0060.03519.16
5.4.310.0030.03718.93
5.4.300.0040.06018.89
5.4.290.0030.03818.98
5.4.280.0000.04919.13
5.4.270.0070.03718.98
5.4.260.0040.03919.20
5.4.250.0030.03819.10
5.4.240.0030.04119.11
5.4.230.0030.03719.10
5.4.220.0030.06118.96
5.4.210.0030.03818.94
5.4.200.0030.04418.91
5.4.190.0000.04118.97
5.4.180.0030.03819.05
5.4.170.0060.03418.97
5.4.160.0070.03719.21
5.4.150.0030.04419.13
5.4.140.0090.03216.69
5.4.130.0030.03616.45
5.4.120.0030.03816.72
5.4.110.0030.04116.61
5.4.100.0030.04016.63
5.4.90.0100.03016.59
5.4.80.0070.03616.46
5.4.70.0030.04216.61
5.4.60.0060.04316.68
5.4.50.0030.03816.72
5.4.40.0060.03716.51
5.4.30.0040.03916.70
5.4.20.0000.05016.67
5.4.10.0040.03516.74
5.4.00.0030.03816.17

preferences:
33.64 ms | 401 KiB | 5 Q