3v4l.org

run code in 300+ PHP versions simultaneously
<?php $b = 16; echo $a ?? 2; echo "/n"; echo $a ?? $b ?? 7;

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)
8.3.60.0150.00618.43
8.3.50.0120.01021.91
8.3.40.0040.01118.54
8.3.30.0070.00718.54
8.3.20.0110.00420.33
8.3.10.0080.00021.72
8.3.00.0040.00420.39
8.2.180.0160.00318.29
8.2.170.0100.01022.96
8.2.160.0100.01020.35
8.2.150.0050.00324.18
8.2.140.0000.00824.66
8.2.130.0080.00026.16
8.2.120.0090.00017.63
8.2.110.0060.00322.11
8.2.100.0060.00617.63
8.2.90.0000.00819.26
8.2.80.0030.00617.97
8.2.70.0030.00517.50
8.2.60.0030.00617.80
8.2.50.0080.00018.07
8.2.40.0070.00019.29
8.2.30.0000.00720.53
8.2.20.0070.00017.59
8.2.10.0000.00717.89
8.2.00.0000.00718.03
8.1.280.0120.00325.92
8.1.270.0040.00423.88
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0030.00622.53
8.1.230.0090.00317.42
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0000.00817.00
8.1.190.0000.01017.13
8.1.180.0040.00418.10
8.1.170.0080.00018.52
8.1.160.0000.00821.90
8.1.150.0040.00418.81
8.1.140.0040.00417.47
8.1.130.0000.00717.55
8.1.120.0070.00017.36
8.1.110.0040.00417.38
8.1.100.0040.00417.37
8.1.90.0000.00817.30
8.1.80.0040.00317.43
8.1.70.0000.00717.35
8.1.60.0040.00417.51
8.1.50.0040.00417.46
8.1.40.0040.00417.47
8.1.30.0030.00617.63
8.1.20.0040.00417.46
8.1.10.0070.00017.43
8.1.00.0050.00217.44
8.0.300.0000.00718.77
8.0.290.0000.00716.75
8.0.280.0070.00018.31
8.0.270.0000.00717.16
8.0.260.0000.00817.18
8.0.250.0000.00716.89
8.0.240.0060.00016.98
8.0.230.0050.00316.92
8.0.220.0030.00316.73
8.0.210.0000.00716.78
8.0.200.0000.00616.77
8.0.190.0000.00716.74
8.0.180.0040.00416.75
8.0.170.0070.00016.84
8.0.160.0030.00316.71
8.0.150.0000.00716.81
8.0.140.0070.00016.68
8.0.130.0030.00313.18
8.0.120.0070.00016.77
8.0.110.0000.00716.80
8.0.100.0030.00616.65
8.0.90.0050.00316.61
8.0.80.0090.01216.81
8.0.70.0040.00416.70
8.0.60.0000.00716.80
8.0.50.0040.00416.86
8.0.30.0130.00417.05
8.0.20.0110.00817.40
8.0.10.0040.00417.01
8.0.00.0100.00816.81
7.4.330.0020.00215.08
7.4.320.0000.00616.43
7.4.300.0000.00616.52
7.4.290.0030.00316.52
7.4.280.0040.00416.32
7.4.270.0030.00316.44
7.4.260.0020.00516.27
7.4.250.0030.00516.39
7.4.240.0030.00416.49
7.4.230.0050.00316.52
7.4.220.0130.01016.46
7.4.210.0140.00316.39
7.4.200.0050.00316.52
7.4.160.0100.00616.48
7.4.150.0100.00717.40
7.4.140.0110.01417.86
7.4.130.0090.01216.40
7.4.120.0160.00716.27
7.4.110.0090.00916.31
7.4.100.0030.01716.30
7.4.90.0090.00816.48
7.4.80.0090.00819.39
7.4.70.0060.01016.55
7.4.60.0000.01516.46
7.4.50.0030.00516.32
7.4.40.0090.00916.16
7.4.30.0130.00816.65
7.4.00.0070.00814.84
7.3.330.0030.00312.92
7.3.320.0030.00313.06
7.3.310.0030.00316.05
7.3.300.0000.00616.18
7.3.290.0060.01116.15
7.3.280.0070.01016.21
7.3.270.0150.00617.40
7.3.260.0070.01016.19
7.3.250.0100.00716.24
7.3.240.0090.01516.25
7.3.230.0100.01116.39
7.3.210.0080.00816.30
7.3.200.0060.00916.09
7.3.190.0110.00516.41
7.3.180.0090.00616.47
7.3.170.0060.01016.27
7.3.160.0110.00916.34
7.3.120.0100.01014.69
7.3.110.0100.01014.54
7.3.100.0060.00614.98
7.3.90.0000.01214.99
7.3.80.0030.01014.71
7.3.70.0100.00314.67
7.3.60.0060.00614.66
7.3.50.0030.00714.67
7.3.40.0080.00414.55
7.3.30.0080.00414.68
7.3.20.0000.01116.64
7.3.10.0060.00316.36
7.3.00.0040.01116.37
7.2.330.0140.00916.22
7.2.320.0070.01016.68
7.2.310.0090.00816.47
7.2.300.0120.00416.46
7.2.290.0100.00716.57
7.2.250.0070.01014.98
7.2.240.0000.01715.00
7.2.230.0080.00815.23
7.2.220.0120.00614.72
7.2.210.0100.00315.09
7.2.200.0030.00814.92
7.2.190.0100.00314.97
7.2.180.0000.01415.02
7.2.170.0040.01414.96
7.2.60.0040.01116.81
7.2.00.0000.01219.05
7.1.330.0070.00715.75
7.1.320.0090.00615.34
7.1.310.0030.01015.95
7.1.300.0040.01215.61
7.1.290.0040.00815.85
7.1.280.0080.00315.41
7.1.270.0000.01715.80
7.1.260.0030.01315.56
7.1.200.0030.01015.66
7.1.100.0000.01318.04
7.1.70.0000.00717.10
7.1.60.0100.01319.11
7.1.50.0060.01616.86
7.1.00.0130.06322.55
7.0.200.0040.00416.77
7.0.60.0170.06720.01
7.0.50.0030.04017.91
7.0.40.0070.08020.06
7.0.30.0370.07320.18
7.0.20.0270.06320.08
7.0.10.0030.09020.20
7.0.00.0030.08720.16
5.6.280.0070.05721.11
5.6.210.0000.06720.76
5.6.200.0100.04718.19
5.6.190.0000.08720.48
5.6.180.0330.04720.68
5.6.170.0300.03720.53
5.6.160.0130.07720.54
5.6.150.0030.06718.23
5.6.140.0170.05018.24
5.6.130.0000.08318.24
5.6.120.0070.08320.89
5.6.110.0130.07721.10
5.6.100.0130.07720.93
5.6.90.0100.04321.12
5.6.80.0100.08020.35
5.5.350.2400.02720.33
5.5.340.0100.03017.96
5.5.330.0100.06020.43
5.5.320.0230.07320.28
5.5.310.0270.07320.35
5.5.300.0200.07018.00
5.5.290.0070.07318.03
5.5.280.0070.04020.81
5.5.270.0070.04020.83
5.5.260.0030.06320.76
5.5.250.0030.04020.58
5.5.240.0070.03020.25
5.4.450.0100.07719.61
5.4.440.0130.08019.33
5.4.430.0830.07019.43
5.4.420.0670.06319.55
5.4.410.0270.04319.43
5.4.400.0100.05319.23
5.4.390.0270.07019.13
5.4.380.0730.05019.15
5.4.370.0930.04018.89
5.4.360.1030.06319.29
5.4.350.0800.06019.04
5.4.340.0770.06719.06
5.4.320.1070.05019.15
5.4.310.1070.05019.31
5.4.300.1000.06019.22
5.4.290.1170.05019.25
5.4.280.1030.05719.29
5.4.270.1000.05019.25
5.4.260.1070.05319.15
5.4.250.0830.04719.27
5.4.240.0070.06019.28
5.4.230.0600.06019.28
5.4.220.1170.06019.01
5.4.210.1100.05318.83
5.4.200.0870.06319.05
5.4.190.1270.06719.29
5.4.180.1100.06019.00
5.4.170.1000.07019.30
5.4.160.1200.05719.10
5.4.150.1070.05719.13
5.4.140.1000.05316.56
5.4.130.0900.06016.50
5.4.120.0830.05016.33
5.4.110.0770.06016.42
5.4.100.0670.06016.59
5.4.90.0770.04716.57
5.4.80.1130.07016.51
5.4.70.0070.03016.55
5.4.60.0170.03716.38
5.4.50.0170.05316.56
5.4.40.0300.05316.53
5.4.30.0100.04016.32
5.4.20.0000.03316.25
5.4.10.0200.03316.42

preferences:
55.42 ms | 401 KiB | 5 Q