3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace A { const Z = 9; define ('X', 0); } namespace B { const Z = 8; } namespace { use B; const Z = 7; echo Z; }

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)
8.3.40.0110.00418.76
8.3.30.0140.00020.17
8.3.20.0040.00420.16
8.3.10.0040.00422.09
8.3.00.0000.00722.58
8.2.170.0070.00722.96
8.2.160.0070.00722.09
8.2.150.0080.00024.18
8.2.140.0070.00324.66
8.2.130.0000.00726.16
8.2.120.0000.00720.93
8.2.110.0030.00720.97
8.2.100.0070.00417.78
8.2.90.0000.00819.05
8.2.80.0000.00817.97
8.2.70.0050.00317.63
8.2.60.0000.00817.80
8.2.50.0000.00818.07
8.2.40.0040.00418.03
8.2.30.0000.00719.38
8.2.20.0020.00517.55
8.2.10.0040.00417.54
8.2.00.0000.00817.49
8.1.270.0050.00323.99
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0030.00621.25
8.1.230.0080.00417.42
8.1.220.0000.00817.74
8.1.210.0060.00318.77
8.1.200.0040.00417.22
8.1.190.0040.00417.10
8.1.180.0000.00818.10
8.1.170.0030.00518.57
8.1.160.0000.00718.72
8.1.150.0050.00218.67
8.1.140.0000.00717.36
8.1.130.0030.00317.79
8.1.120.0030.00317.45
8.1.110.0030.00517.27
8.1.100.0000.00817.39
8.1.90.0030.00317.43
8.1.80.0000.00817.27
8.1.70.0000.00717.22
8.1.60.0000.00817.45
8.1.50.0040.00417.45
8.1.40.0040.00417.47
8.1.30.0030.00617.56
8.1.20.0050.00317.58
8.1.10.0000.00717.42
8.1.00.0070.00017.37
8.0.300.0060.00318.77
8.0.290.0070.00016.75
8.0.280.0030.00318.37
8.0.270.0050.00317.06
8.0.260.0030.00316.80
8.0.250.0030.00316.90
8.0.240.0080.00016.95
8.0.230.0040.00416.99
8.0.220.0040.00416.95
8.0.210.0070.00016.91
8.0.200.0030.00316.92
8.0.190.0080.00016.91
8.0.180.0070.00016.80
8.0.170.0080.00016.78
8.0.160.0070.00017.00
8.0.150.0040.00416.78
8.0.140.0000.00916.76
8.0.130.0030.00313.26
8.0.120.0000.00716.80
8.0.110.0040.00416.81
8.0.100.0040.00416.89
8.0.90.0030.00316.90
8.0.80.0110.00716.85
8.0.70.0050.00316.71
8.0.60.0050.00316.70
8.0.50.0030.00516.83
8.0.30.0110.00816.90
8.0.20.0100.01017.40
8.0.10.0000.00816.80
8.0.00.0080.01316.66
7.4.330.0000.00516.67
7.4.320.0000.00616.41
7.4.300.0060.00016.51
7.4.290.0030.00316.54
7.4.280.0030.00316.50
7.4.270.0060.00316.36
7.4.260.0000.00513.20
7.4.250.0040.00416.38
7.4.240.0060.00216.47
7.4.230.0070.00016.32
7.4.220.0070.01016.46
7.4.210.0090.00716.50
7.4.200.0070.00016.47
7.4.190.0030.00316.65
7.4.160.0050.01816.61
7.4.150.0060.01417.40
7.4.140.0080.01017.86
7.4.130.0030.01416.49
7.4.120.0140.00516.43
7.4.110.0060.00916.45
7.4.100.0060.01116.40
7.4.90.0090.00916.46
7.4.80.0100.01019.39
7.4.70.0070.01116.58
7.4.60.0000.01616.59
7.4.50.0040.00416.48
7.4.40.0060.00922.77
7.4.30.0060.01516.45
7.4.00.0070.01014.54
7.3.330.0020.00213.11
7.3.320.0050.00013.14
7.3.310.0050.00216.10
7.3.300.0030.00316.25
7.3.290.0060.00916.23
7.3.280.0060.01016.24
7.3.270.0030.01317.40
7.3.260.0090.00916.27
7.3.250.0070.01016.36
7.3.240.0100.01016.50
7.3.230.0100.00716.39
7.3.210.0080.00916.36
7.3.200.0060.01119.39
7.3.190.0140.00416.25
7.3.180.0070.01016.36
7.3.170.0090.01316.51
7.3.160.0060.00916.44
7.3.120.0000.01714.75
7.2.330.0110.00716.66
7.2.320.0120.01116.51
7.2.310.0080.01516.68
7.2.300.0100.01316.41
7.2.290.0030.01316.50
7.2.00.0100.00719.38
7.1.100.0060.00318.33
7.1.70.0030.00317.18
7.1.60.0090.01619.17
7.1.50.0070.01716.50
7.1.00.0100.04322.39
7.0.200.0040.00416.64
7.0.140.0000.07321.96
7.0.100.0400.06719.90
7.0.90.0170.04319.93
7.0.80.0070.08019.88
7.0.70.0200.05319.95
7.0.60.0070.06319.88
7.0.50.0130.08720.20
7.0.40.0070.06320.19
7.0.30.0030.04320.10
7.0.20.0100.04020.08
7.0.10.0030.04720.18
7.0.00.0070.04020.08
5.6.280.0000.07720.86
5.6.250.0070.07020.60
5.6.240.0100.08020.57
5.6.230.0100.07720.50
5.6.220.0030.07320.49
5.6.210.0100.07020.75
5.6.200.0070.08021.08
5.6.190.0130.04321.04
5.6.180.0030.05021.01
5.6.170.0100.03721.05
5.6.160.0030.04321.13
5.6.150.0070.04021.02
5.6.140.0000.04321.04
5.6.130.0030.04321.04
5.6.120.0000.04721.08
5.6.110.0000.05021.02
5.6.100.0100.05320.99
5.6.90.0070.04020.94
5.6.80.0100.03720.46
5.6.70.0070.04320.52
5.6.60.0070.04020.42
5.6.50.0030.05020.50
5.6.40.0030.04020.46
5.6.30.0070.03320.41
5.6.20.0030.04020.46
5.6.10.0100.03320.41
5.6.00.0030.04020.39
5.5.380.0070.07720.41
5.5.370.0030.07720.45
5.5.360.0100.08020.39
5.5.350.0070.08020.43
5.5.340.0100.05020.92
5.5.330.0130.07320.91
5.5.320.0000.05320.78
5.5.310.0070.05720.88
5.5.300.0000.06020.90
5.5.290.0100.03720.86
5.5.280.0000.04720.73
5.5.270.0100.04320.82
5.5.260.0030.04320.77
5.5.250.0030.04020.71
5.5.240.0000.04320.19
5.5.230.0030.04020.20
5.5.220.0030.06020.30
5.5.210.0030.04020.02
5.5.200.0030.04020.27
5.5.190.0030.04020.28
5.5.180.0030.04020.25
5.5.160.0000.04320.22
5.5.150.0000.04019.97
5.5.140.0070.04020.27
5.5.130.0000.04320.27
5.5.120.0100.04020.25
5.5.110.0100.03320.25
5.5.100.0000.05020.04
5.5.90.0030.03720.12
5.5.80.0030.06020.06
5.5.70.0070.04720.11
5.5.60.0030.04320.05
5.5.50.0030.04719.96
5.5.40.0100.04720.08
5.5.30.0070.06720.13
5.5.20.0100.07720.08
5.5.10.0130.07020.07
5.5.00.0000.08020.09
5.4.450.0030.04019.30
5.4.440.0030.04019.56
5.4.430.0000.04319.11
5.4.420.0030.04019.36
5.4.410.0070.03719.24
5.4.400.0070.04319.04
5.4.390.0070.06019.08
5.4.380.0030.04019.04
5.4.370.0030.03719.15
5.4.360.0030.03719.14
5.4.350.0000.04018.97
5.4.340.0030.04019.14
5.4.320.0070.03319.13
5.4.310.0130.02718.97
5.4.300.0070.03319.03
5.4.290.0030.04318.90
5.4.280.0030.04719.23
5.4.270.0030.03318.80
5.4.260.0030.05319.07
5.4.250.0000.04018.80
5.4.240.0070.03318.78
5.4.230.0030.03719.03
5.4.220.0070.05719.03
5.4.210.0070.03318.93
5.4.200.0070.03719.04
5.4.190.0070.07319.14
5.4.180.0070.07719.02
5.4.170.0070.07319.04
5.4.160.0070.08018.77
5.4.150.0030.07719.11
5.4.140.0070.07716.22
5.4.130.0130.05716.27
5.4.120.0100.07316.21
5.4.110.0100.03316.21
5.4.100.0070.07016.27
5.4.90.0000.06016.37
5.4.80.0170.06316.20
5.4.70.0070.06316.35
5.4.60.0100.04016.38
5.4.50.0000.06716.29
5.4.40.0130.05016.36
5.4.30.0030.03716.45
5.4.20.0070.06716.23
5.4.10.0100.07016.21
5.4.00.0170.06015.46
5.3.290.0000.04014.66
5.3.280.0000.04014.56
5.3.270.0130.06714.46
5.3.260.0100.07014.61
5.3.250.0100.07014.61
5.3.240.0030.07714.59
5.3.230.0100.04314.61
5.3.220.0030.04314.52
5.3.210.0170.06714.43
5.3.200.0070.06714.48
5.3.190.0030.05714.47
5.3.180.0030.07714.56
5.3.170.0000.05014.41
5.3.160.0030.07314.53
5.3.150.0070.06314.53
5.3.140.0030.04014.42
5.3.130.0000.07314.40
5.3.120.0130.06714.48
5.3.110.0030.04314.49
5.3.100.0170.03013.90
5.3.90.0130.04313.86
5.3.80.0000.07713.97
5.3.70.0130.05013.88
5.3.60.0070.07014.00
5.3.50.0030.07013.95
5.3.40.0170.06013.90
5.3.30.0200.05713.85
5.3.20.0070.07713.68
5.3.10.0070.08313.65
5.3.00.0170.06313.63
5.2.170.0030.06311.13
5.2.160.0100.05310.99
5.2.150.0100.05710.94
5.2.140.0030.03311.13
5.2.130.0030.03311.17
5.2.120.0030.06010.95
5.2.110.0070.06010.92
5.2.100.0000.06010.89
5.2.90.0070.06011.06
5.2.80.0070.06310.96
5.2.70.0070.06311.16
5.2.60.0030.03711.05
5.2.50.0170.04010.93
5.2.40.0100.05711.02
5.2.30.0000.03710.98
5.2.20.0000.03310.84
5.2.10.0130.02710.93
5.2.00.0100.02710.81
5.1.60.0030.05010.81
5.1.50.0030.05010.81
5.1.40.0100.03710.81
5.1.30.0070.04010.81
5.1.20.0130.03710.81
5.1.10.0030.05710.81
5.1.00.0070.02710.81
5.0.50.0030.03010.81
5.0.40.0030.03710.81
5.0.30.0000.06710.81
5.0.20.0070.02710.81
5.0.10.0070.02710.81
5.0.00.0030.05310.81
4.4.90.0000.03710.81
4.4.80.0070.03010.81
4.4.70.0030.02010.81
4.4.60.0000.02310.81
4.4.50.0030.01710.81
4.4.40.0000.03710.81
4.4.30.0000.02310.81
4.4.20.0000.02310.81
4.4.10.0000.03310.81
4.4.00.0000.03010.81
4.3.110.0030.03310.81
4.3.100.0000.03310.81
4.3.90.0070.01310.81
4.3.80.0000.03010.81
4.3.70.0030.02710.81
4.3.60.0030.02010.81
4.3.50.0000.03710.81
4.3.40.0030.03010.81
4.3.30.0000.03710.81
4.3.20.0030.03010.81
4.3.10.0030.03310.81
4.3.00.0000.02010.81

preferences:
41.98 ms | 400 KiB | 5 Q