3v4l.org

run code in 300+ PHP versions simultaneously
<?php class BaseFunClass { const FIRST = 'first'; } class FunClass extends BaseFunClass { const SECOND = 'second'; } $class = 'FunClass'; $constantOne = 'FIRST'; $constantTwo = 'SECOND'; var_dump(constant("$class::$constantOne")); // Returns value! var_dump(constant("$class::$constantTwo")); // Says constant is not defined

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)
8.3.40.0140.00318.45
8.3.30.0030.01019.00
8.3.20.0040.00420.30
8.3.10.0040.00423.66
8.3.00.0080.00019.11
8.2.170.0140.00722.96
8.2.160.0100.01020.32
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00420.83
8.2.110.0130.00722.20
8.2.100.0080.00419.63
8.2.90.0070.00019.09
8.2.80.0000.00817.97
8.2.70.0000.00817.50
8.2.60.0060.00317.93
8.2.50.0100.00318.07
8.2.40.0030.00619.87
8.2.30.0000.00718.25
8.2.20.0090.00017.69
8.2.10.0020.00518.04
8.2.00.0040.00417.75
8.1.270.0040.00423.96
8.1.260.0050.00226.35
8.1.250.0030.00528.09
8.1.240.0070.00322.17
8.1.230.0100.00019.02
8.1.220.0090.00017.74
8.1.210.0030.00518.77
8.1.200.0100.00017.13
8.1.190.0000.00817.13
8.1.180.0040.00418.10
8.1.170.0040.00418.43
8.1.160.0000.00722.02
8.1.150.0000.00718.44
8.1.140.0040.00417.40
8.1.130.0070.00017.74
8.1.120.0030.00317.31
8.1.110.0070.00017.46
8.1.100.0040.00417.38
8.1.90.0030.00517.45
8.1.80.0040.00417.32
8.1.70.0030.00317.36
8.1.60.0030.00717.41
8.1.50.0040.00417.41
8.1.40.0040.00417.44
8.1.30.0050.00317.59
8.1.20.0080.00017.56
8.1.10.0040.00417.43
8.1.00.0000.00817.45
8.0.300.0040.00418.77
8.0.290.0040.00417.18
8.0.280.0050.00218.51
8.0.270.0030.00317.26
8.0.260.0000.00617.20
8.0.250.0000.00716.97
8.0.240.0030.00316.96
8.0.230.0030.00617.00
8.0.220.0070.00016.79
8.0.210.0000.00716.77
8.0.200.0050.00317.00
8.0.190.0030.00616.95
8.0.180.0030.00516.97
8.0.170.0040.00416.82
8.0.160.0030.00416.83
8.0.150.0040.00416.82
8.0.140.0040.00416.86
8.0.130.0050.00313.29
8.0.120.0000.00816.82
8.0.110.0000.00716.82
8.0.100.0000.00816.83
8.0.90.0040.00416.96
8.0.80.0130.00316.94
8.0.70.0000.00816.83
8.0.60.0000.00816.78
8.0.50.0080.00016.79
8.0.30.0090.00917.07
8.0.20.0070.01017.40
8.0.10.0070.00016.84
8.0.00.0080.01016.87
7.4.330.0020.00215.00
7.4.320.0000.00616.53
7.4.300.0040.00416.55
7.4.290.0000.00716.43
7.4.280.0000.00716.46
7.4.270.0030.00316.57
7.4.260.0000.00716.52
7.4.250.0000.00716.50
7.4.240.0040.00416.39
7.4.230.0020.00516.66
7.4.220.0040.01316.44
7.4.210.0090.00716.52
7.4.200.0040.00416.57
7.4.190.0030.00316.63
7.4.160.0150.00616.41
7.4.150.0090.00917.40
7.4.140.0110.00717.86
7.4.130.0090.00616.57
7.4.120.0090.00916.47
7.4.110.0100.01016.33
7.4.100.0060.01116.46
7.4.90.0060.01216.34
7.4.80.0030.01719.39
7.4.70.0100.00716.45
7.4.60.0090.00916.46
7.4.50.0080.00016.57
7.4.40.0070.01016.40
7.4.30.0040.01116.59
7.4.00.0060.00615.09
7.3.330.0000.00613.25
7.3.320.0000.00613.30
7.3.310.0080.00016.27
7.3.300.0040.00216.17
7.3.290.0090.00616.22
7.3.280.0090.00716.28
7.3.270.0150.00417.40
7.3.260.0070.01416.31
7.3.250.0090.00916.34
7.3.240.0100.00616.38
7.3.230.0090.01116.39
7.3.210.0060.01216.52
7.3.200.0060.01319.39
7.3.190.0100.00716.27
7.3.180.0100.00616.39
7.3.170.0100.00616.43
7.3.160.0040.01316.24
7.3.120.0120.00614.67
7.3.110.0130.00314.68
7.3.100.0030.01014.60
7.3.90.0060.00614.92
7.3.80.0030.00614.79
7.3.70.0000.00814.43
7.3.60.0030.01314.65
7.3.50.0000.01414.52
7.3.40.0000.01214.91
7.3.30.0100.00314.65
7.3.20.0060.01416.71
7.3.10.0100.00616.62
7.3.00.0070.00616.56
7.2.330.0090.01016.60
7.2.320.0100.00716.66
7.2.310.0110.00716.41
7.2.300.0100.00716.63
7.2.290.0140.00416.44
7.2.240.0100.00714.84
7.2.230.0080.00614.99
7.2.220.0000.01314.89
7.2.210.0000.01414.58
7.2.200.0090.00014.95
7.2.190.0060.00914.66
7.2.180.0060.01214.96
7.2.170.0080.00314.79
7.2.160.0040.01114.98
7.2.150.0100.00316.65
7.2.140.0060.00916.88
7.2.130.0050.01016.68
7.2.120.0060.00616.67
7.2.110.0120.00716.66
7.2.100.0070.00916.81
7.2.90.0040.01116.78
7.2.80.0070.00416.77
7.2.70.0080.00816.93
7.2.60.0060.01016.72
7.2.50.0060.00716.81
7.2.40.0060.00616.68
7.2.30.0090.00616.90
7.2.20.0030.01316.84
7.2.10.0030.01016.93
7.2.00.0040.01017.50
7.1.330.0060.00615.61
7.1.320.0000.01215.88
7.1.310.0060.00315.77
7.1.300.0100.00715.49
7.1.290.0060.00615.79
7.1.280.0060.00915.78
7.1.270.0040.01115.90
7.1.260.0090.00915.81
7.1.250.0050.00815.81
7.1.100.0030.00917.69
7.1.70.0070.00316.93
7.1.60.0040.01419.46
7.1.50.0240.01434.70
7.1.00.0070.07322.31
7.0.200.0040.00416.60
7.0.140.0000.07022.00
7.0.60.0030.07319.90
7.0.50.0100.06017.86
7.0.40.0070.06320.25
7.0.30.0470.07320.21
7.0.20.0300.05320.04
7.0.10.0130.07720.07
7.0.00.0070.05020.05
5.6.280.0000.07720.99
5.6.210.0100.08020.66
5.6.200.0070.04018.19
5.6.190.0170.08020.53
5.6.180.0200.04020.48
5.6.170.0430.07720.56
5.6.160.0000.04720.66
5.6.150.0100.07018.11
5.6.140.0000.05018.15
5.6.130.0030.04018.17
5.6.120.0030.08720.96
5.6.110.0000.07320.89
5.6.100.0070.08321.00
5.6.90.0030.08020.95
5.6.80.0100.07720.41
5.5.350.0030.08320.50
5.5.340.0000.05017.92
5.5.330.0070.04020.29
5.5.320.0430.04720.25
5.5.310.0300.04320.30
5.5.300.0070.05017.98
5.5.290.0130.07317.93
5.5.280.0100.08320.87
5.5.270.0030.06320.84
5.5.260.0100.08320.79
5.5.250.0100.05320.46
5.5.240.0230.07720.23
5.4.450.0630.06019.20
5.4.440.0500.05319.70
5.4.430.0730.05719.48
5.4.420.0630.05019.46
5.4.410.0570.05719.20
5.4.400.0670.05019.29
5.4.390.0170.04718.84
5.4.380.0370.04318.51
5.4.370.0100.04318.77
5.4.360.0070.03718.56
5.4.350.0120.03712.02
5.4.340.0070.03912.01
5.4.320.0100.03212.50
5.4.310.0040.03912.50
5.4.300.0110.03412.50
5.4.290.0130.04612.49
5.4.280.0090.04612.39
5.4.270.0060.05012.39
5.4.260.0120.04612.39
5.4.250.0120.04812.39
5.4.240.0110.04712.39
5.4.230.0090.05112.38
5.4.220.0090.04412.38
5.4.210.0100.04212.39
5.4.200.0110.04712.39
5.4.190.0080.04412.38
5.4.180.0090.04712.38
5.4.170.0070.04812.39
5.4.160.0100.04412.38
5.4.150.0110.04612.38
5.4.140.0110.04712.07
5.4.130.0080.04612.05
5.4.120.0090.04212.01
5.4.110.0110.04112.01
5.4.100.0070.04212.01
5.4.90.0080.04312.01
5.4.80.0060.04912.01
5.4.70.0080.04712.01
5.4.60.0120.04412.00
5.4.50.0130.04012.00
5.4.40.0120.03811.99
5.4.30.0060.04311.98
5.4.20.0060.04511.99
5.4.10.0090.04311.99
5.4.00.0060.05011.48
5.3.290.0080.03712.80
5.3.280.0090.04912.70
5.3.270.0090.05212.73
5.3.260.0100.05112.72
5.3.250.0110.05312.72
5.3.240.0130.04712.71
5.3.230.0110.04812.71
5.3.220.0080.05312.68
5.3.210.0110.05212.68
5.3.200.0130.04812.68
5.3.190.0150.05912.68
5.3.180.0220.10412.68
5.3.170.0070.05612.67
5.3.160.0160.08312.67
5.3.150.0130.10512.67
5.3.140.0180.06312.66
5.3.130.0070.05612.66
5.3.120.0040.05612.66
5.3.110.0070.05512.66
5.3.100.0070.04512.12
5.3.90.0060.05212.09
5.3.80.0110.04612.09
5.3.70.0090.04812.08
5.3.60.0110.04612.07
5.3.50.0070.05112.02
5.3.40.0080.05112.02
5.3.30.0100.04911.98
5.3.20.0170.04311.76
5.3.10.0070.04711.72
5.3.00.0080.04211.71
5.2.170.0070.0389.21
5.2.160.0070.0389.21
5.2.150.0060.0419.21
5.2.140.0120.0449.21
5.2.130.0080.0459.17
5.2.120.0080.0419.17
5.2.110.0090.0399.18
5.2.100.0050.0419.18
5.2.90.0110.0359.17
5.2.80.0080.0439.17
5.2.70.0110.0399.17
5.2.60.0110.0389.12
5.2.50.0070.0409.09
5.2.40.0110.0339.07
5.2.30.0040.0429.04
5.2.20.0090.0369.03
5.2.10.0050.0308.94
5.2.00.0040.0298.80
5.1.60.0020.0298.08
5.1.50.0040.0318.08
5.1.40.0070.0248.06
5.1.30.0050.0268.41
5.1.20.0070.0248.43
5.1.10.0060.0248.15
5.1.00.0030.0278.16
5.0.50.0040.0246.64
5.0.40.0030.0196.49
5.0.30.0030.0436.30
5.0.20.0070.0286.27
5.0.10.0030.0266.25
5.0.00.0050.0386.24
4.4.90.0040.0204.78
4.4.80.0030.0224.76
4.4.70.0040.0204.75
4.4.60.0040.0214.76
4.4.50.0050.0204.77
4.4.40.0050.0304.71
4.4.30.0030.0224.76
4.4.20.0050.0204.84
4.4.10.0060.0204.84
4.4.00.0030.0324.76
4.3.110.0040.0204.66
4.3.100.0050.0194.66
4.3.90.0050.0184.63
4.3.80.0080.0534.58
4.3.70.0040.0184.63
4.3.60.0050.0204.63
4.3.50.0060.0184.63
4.3.40.0040.0324.53
4.3.30.0020.0223.30
4.3.20.0050.0193.28
4.3.10.0010.0223.24
4.3.00.0030.0207.45

preferences:
42.23 ms | 400 KiB | 5 Q