3v4l.org

run code in 300+ PHP versions simultaneously
<?php $b = $a ?? 0; echo $b;

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)
8.3.60.0100.01318.43
8.3.50.0070.01016.58
8.3.40.0090.00618.54
8.3.30.0040.01118.51
8.3.20.0080.00019.02
8.3.10.0060.00321.75
8.3.00.0000.00819.41
8.2.180.0030.01418.53
8.2.170.0040.01122.96
8.2.160.0070.00720.38
8.2.150.0030.00525.66
8.2.140.0070.00024.66
8.2.130.0040.00420.43
8.2.120.0050.00226.35
8.2.110.0060.00320.56
8.2.100.0030.01017.70
8.2.90.0040.00419.21
8.2.80.0000.00818.04
8.2.70.0000.00817.50
8.2.60.0060.00317.80
8.2.50.0090.00018.10
8.2.40.0030.00522.27
8.2.30.0040.00420.92
8.2.20.0000.00717.93
8.2.10.0030.00318.12
8.2.00.0040.00418.04
8.1.280.0130.00325.92
8.1.270.0040.00423.92
8.1.260.0050.00226.35
8.1.250.0050.00228.09
8.1.240.0070.00320.90
8.1.230.0050.00519.10
8.1.220.0000.00817.74
8.1.210.0080.00018.77
8.1.200.0040.00417.10
8.1.190.0000.00817.23
8.1.180.0040.00418.10
8.1.170.0030.00518.59
8.1.160.0000.00819.05
8.1.150.0040.00418.76
8.1.140.0000.00719.50
8.1.130.0000.00718.73
8.1.120.0050.00217.43
8.1.110.0040.00417.40
8.1.100.0030.00617.45
8.1.90.0000.00817.44
8.1.80.0050.00317.41
8.1.70.0030.00317.27
8.1.60.0080.00017.59
8.1.50.0060.00317.46
8.1.40.0040.00717.34
8.1.30.0000.00717.51
8.1.20.0040.00417.54
8.1.10.0030.00617.43
8.1.00.0040.00417.32
8.0.300.0020.00518.77
8.0.290.0080.00016.75
8.0.280.0000.00718.30
8.0.270.0000.00717.16
8.0.260.0040.00416.72
8.0.250.0000.00616.94
8.0.240.0000.00716.93
8.0.230.0000.00716.92
8.0.220.0000.00616.82
8.0.210.0030.00316.82
8.0.200.0060.00016.77
8.0.190.0030.00516.88
8.0.180.0030.00516.76
8.0.170.0000.00716.85
8.0.160.0040.00416.80
8.0.150.0040.00316.77
8.0.140.0000.00816.66
8.0.130.0080.00013.27
8.0.120.0040.00416.70
8.0.110.0080.00016.66
8.0.100.0080.00016.84
8.0.90.0040.00416.85
8.0.80.0060.00916.77
8.0.70.0070.00016.70
8.0.60.0050.00316.69
8.0.50.0040.00416.85
8.0.30.0080.01016.97
8.0.20.0120.00817.40
8.0.10.0030.00316.92
8.0.00.0070.01016.61
7.4.330.0020.00215.55
7.4.320.0000.00916.53
7.4.300.0000.00716.39
7.4.290.0070.00016.55
7.4.280.0080.00016.42
7.4.270.0000.00716.58
7.4.260.0000.00613.23
7.4.250.0030.00316.30
7.4.240.0030.00316.46
7.4.230.0030.00316.59
7.4.220.0100.01616.46
7.4.210.0050.01316.53
7.4.200.0040.00416.59
7.4.160.0090.00616.52
7.4.150.0080.00917.40
7.4.140.0110.00817.86
7.4.130.0160.00616.57
7.4.120.0080.00916.42
7.4.110.0130.01016.37
7.4.100.0090.00916.36
7.4.90.0120.00916.41
7.4.80.0080.00819.39
7.4.70.0140.00716.49
7.4.60.0000.01516.43
7.4.50.0110.00416.60
7.4.40.0090.00916.53
7.4.30.0140.00316.47
7.4.10.0030.01714.97
7.4.00.0080.00914.82
7.3.330.0040.00312.93
7.3.320.0030.00313.04
7.3.310.0030.00316.13
7.3.300.0030.00316.14
7.3.290.0070.00016.23
7.3.280.0070.00916.18
7.3.270.0140.00717.40
7.3.260.0150.02216.43
7.3.250.0120.00816.34
7.3.240.0110.00616.33
7.3.230.0030.01316.55
7.3.210.0070.01016.20
7.3.200.0070.01016.56
7.3.190.0070.01116.19
7.3.180.0030.01216.22
7.3.170.0030.01716.25
7.3.160.0000.01616.08
7.3.130.0110.00714.71
7.3.120.0060.00814.77
7.3.110.0080.01114.62
7.3.100.0110.00314.98
7.3.90.0100.00714.78
7.3.80.0040.01014.54
7.3.70.0070.00714.86
7.3.60.0080.00514.74
7.3.50.0060.00514.64
7.3.40.0080.00814.80
7.3.30.0020.00914.71
7.3.20.0050.00716.55
7.3.10.0060.00716.67
7.3.00.0030.01216.64
7.2.330.0070.01016.73
7.2.320.0130.00316.56
7.2.310.0120.00616.59
7.2.300.0060.01216.64
7.2.290.0140.00316.55
7.2.260.0100.01014.85
7.2.250.0050.01414.81
7.2.240.0090.00615.00
7.2.230.0100.00314.66
7.2.220.0080.00914.75
7.2.210.0020.01014.87
7.2.200.0080.00614.98
7.2.190.0040.00914.93
7.2.180.0020.01314.98
7.2.170.0100.00514.97
7.2.160.0000.00914.95
7.2.150.0090.00616.89
7.2.140.0070.01116.65
7.2.130.0030.00616.93
7.2.120.0070.00716.91
7.2.110.0070.01016.82
7.2.100.0110.00316.57
7.2.90.0070.01016.51
7.2.80.0060.01216.96
7.2.70.0130.00016.93
7.2.60.0090.00516.73
7.2.50.0070.00716.79
7.2.40.0030.01016.83
7.2.30.0070.00716.93
7.2.20.0040.01116.80
7.2.10.0070.00716.84
7.2.00.0030.01118.12
7.1.330.0070.00715.79
7.1.320.0110.00515.55
7.1.310.0070.00815.81
7.1.300.0080.00915.63
7.1.290.0050.00815.56
7.1.280.0090.00515.62
7.1.270.0030.01015.63
7.1.260.0060.01015.58
7.1.250.0030.00915.71
7.1.240.0030.01015.64
7.1.230.0060.00915.62
7.1.220.0030.00615.35
7.1.210.0100.00315.57
7.1.200.0070.00915.76
7.1.190.0080.00415.68
7.1.180.0030.01115.73
7.1.170.0040.00415.78
7.1.160.0040.00715.66
7.1.150.0070.00715.75
7.1.140.0060.00815.61
7.1.130.0000.00915.46
7.1.120.0000.01415.68
7.1.110.0100.00315.68
7.1.100.0070.00617.02
7.1.90.0060.00915.51
7.1.80.0040.00415.65
7.1.70.0430.00815.38
7.1.60.0530.00924.36
7.1.50.0470.01524.16
7.1.40.0530.01224.00
7.1.30.0550.00724.03
7.1.20.0380.01324.14
7.1.10.0450.00915.04
7.1.00.0120.00615.17
7.0.330.0040.01115.30
7.0.320.0030.00615.33
7.0.310.0090.00315.43
7.0.300.0030.01015.07
7.0.290.0060.00615.37
7.0.280.0100.00315.24
7.0.270.0000.00915.21
7.0.260.0030.01015.18
7.0.250.0040.00415.17
7.0.240.0100.00615.28
7.0.230.0080.00415.41
7.0.220.0150.00015.12
7.0.210.0090.00315.50
7.0.200.0430.00814.98
7.0.190.0790.00514.84
7.0.180.0420.01114.88
7.0.170.0450.00814.86
7.0.160.0390.01414.74
7.0.150.0350.01214.85
7.0.140.0480.01014.80
7.0.130.0080.01015.04
7.0.120.0100.00614.86
7.0.110.0050.01014.76
7.0.100.0660.01014.78
7.0.90.0090.00714.79
7.0.80.0040.01414.99
7.0.70.0460.00914.87
7.0.60.0430.01414.61
7.0.50.0020.01314.92
7.0.40.0530.01113.95
7.0.30.0500.00913.96
7.0.20.0330.00913.89
7.0.10.0030.01213.79
7.0.00.0080.01013.86
5.6.400.0070.01014.09
5.6.390.0100.00314.34
5.6.380.0100.00014.41
5.6.370.0120.00314.15
5.6.360.0030.00914.16
5.6.350.0040.01114.21
5.6.340.0070.01014.10
5.6.330.0040.01113.98
5.6.320.0100.00313.95
5.6.310.0130.00314.18
5.6.300.0040.00814.34
5.6.290.0090.00614.16
5.6.280.0040.00713.80
5.6.270.0030.00714.20
5.6.260.0070.00713.97
5.6.250.0100.00714.21
5.6.240.0070.01114.21
5.6.230.0030.01414.12
5.6.220.0040.00814.08
5.6.210.0030.00914.33
5.6.200.0040.00814.08
5.6.190.0030.01314.17
5.6.180.0000.01414.20
5.6.170.0000.00914.02
5.6.160.0090.00314.05
5.6.150.0030.01014.12
5.6.140.0040.01113.81
5.6.130.0000.01414.38
5.6.120.0120.00313.85
5.6.110.0110.00314.23
5.6.100.0040.00413.95
5.6.90.0070.00313.99
5.6.80.0030.01013.80
5.6.70.0060.00613.92
5.6.60.0040.01113.83
5.6.50.0060.00614.01
5.6.40.0070.00414.00
5.6.30.0030.00713.92
5.6.20.0090.00613.98
5.6.10.0070.00713.82
5.6.00.0040.01114.14

preferences:
83.2 ms | 401 KiB | 5 Q