3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace { const TEST_CONST1 = true; define("TEST_CONST2", true); function testExistConst() { var_dump(constant("TEST_CONST1")); var_dump(constant("TEST_CONST2")); var_dump(TEST_CONST1); var_dump(TEST_CONST2); } testExistConst(); }

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)
8.3.60.0070.01318.20
8.3.50.0130.00522.11
8.3.40.0090.00618.57
8.3.30.0140.00019.10
8.3.20.0050.00220.36
8.3.10.0080.00023.61
8.3.00.0070.00019.08
8.2.180.0100.01018.04
8.2.170.0070.00722.96
8.2.160.0070.01022.09
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0030.00519.56
8.2.110.0060.00319.17
8.2.100.0060.00617.91
8.2.90.0050.00319.75
8.2.80.0060.00317.97
8.2.70.0080.00017.79
8.2.60.0050.00318.21
8.2.50.0060.00318.10
8.2.40.0080.00019.25
8.2.30.0000.00819.06
8.2.20.0060.00317.56
8.2.10.0040.00417.95
8.2.00.0050.00317.57
8.1.280.0170.00325.92
8.1.270.0030.00618.88
8.1.260.0070.00426.35
8.1.250.0080.00028.09
8.1.240.0130.01022.37
8.1.230.0090.00320.92
8.1.220.0030.00617.74
8.1.210.0000.00818.77
8.1.200.0040.00417.10
8.1.190.0060.00317.29
8.1.180.0070.00318.10
8.1.170.0060.00320.77
8.1.160.0000.00718.91
8.1.150.0080.00018.82
8.1.140.0030.00517.36
8.1.130.0030.00317.69
8.1.120.0040.00417.45
8.1.110.0030.00617.47
8.1.100.0030.00317.36
8.1.90.0040.00417.43
8.1.80.0030.00317.43
8.1.70.0000.00717.41
8.1.60.0030.00617.51
8.1.50.0040.00417.34
8.1.40.0080.00017.43
8.1.30.0040.00417.63
8.1.20.0070.00017.59
8.1.10.0000.00717.29
8.1.00.0000.00717.34
8.0.300.0040.00419.89
8.0.290.0050.00216.75
8.0.280.0030.00318.32
8.0.270.0040.00417.21
8.0.260.0030.00317.11
8.0.250.0000.00716.84
8.0.240.0040.00416.94
8.0.230.0040.00316.86
8.0.220.0030.00316.72
8.0.210.0030.00316.72
8.0.200.0040.00416.91
8.0.190.0000.00716.89
8.0.180.0000.00716.82
8.0.170.0050.00216.75
8.0.160.0030.00316.83
8.0.150.0000.00716.81
8.0.140.0000.00716.80
8.0.130.0050.00013.30
8.0.120.0080.00016.80
8.0.110.0050.00216.84
8.0.100.0040.00416.66
8.0.90.0000.00816.78
8.0.80.0060.00916.75
8.0.70.0000.00716.87
8.0.60.0070.00016.65
8.0.50.0040.00416.89
8.0.30.0130.00917.07
8.0.20.0100.00917.40
8.0.10.0000.00816.98
8.0.00.0110.00816.61
7.4.330.0050.00015.03
7.4.320.0070.00016.49
7.4.300.0030.00316.34
7.4.290.0000.00816.52
7.4.280.0050.00316.46
7.4.270.0000.00716.47
7.4.260.0080.00316.32
7.4.250.0040.00416.39
7.4.240.0020.00516.51
7.4.230.0000.00716.36
7.4.220.0150.00916.54
7.4.210.0070.00716.50
7.4.200.0050.00316.38
7.4.160.0060.00916.55
7.4.150.0180.00017.40
7.4.140.0090.00917.86
7.4.130.0090.01016.40
7.4.120.0050.01516.49
7.4.110.0160.00616.50
7.4.100.0130.00716.44
7.4.90.0060.01116.42
7.4.80.0100.00719.39
7.4.70.0090.00916.50
7.4.60.0130.01016.57
7.4.50.0050.00316.62
7.4.40.0130.00316.39
7.4.30.0070.01016.64
7.4.00.0000.01214.95
7.3.330.0030.00313.23
7.3.320.0000.00513.26
7.3.310.0030.00316.33
7.3.300.0000.00716.25
7.3.290.0030.01116.19
7.3.280.0080.00816.21
7.3.270.0170.00717.40
7.3.260.0030.01616.33
7.3.250.0090.01116.21
7.3.240.0120.00616.32
7.3.230.0130.00616.39
7.3.210.0060.00916.33
7.3.200.0150.00619.39
7.3.190.0130.00316.49
7.3.180.0130.00616.22
7.3.170.0110.01116.45
7.3.160.0120.00916.31
7.2.330.0120.00616.78
7.2.320.0140.00816.64
7.2.310.0150.00416.71
7.2.300.0040.01216.59
7.2.290.0170.00616.66
7.2.60.0150.00016.72
7.2.00.0060.00919.26
7.1.200.0040.01115.58
7.1.100.0030.01017.99
7.1.70.0060.00316.80
7.1.60.0130.01019.22
7.1.50.0150.00616.78
7.1.00.0030.07322.37
7.0.200.0000.00716.68
7.0.140.0000.03722.07
7.0.60.0070.06719.83
7.0.50.0030.04017.79
7.0.40.0070.08320.30
7.0.30.0170.07320.17
7.0.20.0270.05320.31
7.0.10.0070.04320.23
7.0.00.0170.07720.07
5.6.280.0000.07720.82
5.6.210.0100.03320.66
5.6.200.0070.07718.15
5.6.190.0100.07320.55
5.6.180.0400.07320.62
5.6.170.0230.04020.71
5.6.160.0030.09020.54
5.6.150.0070.08018.18
5.6.140.0070.05018.15
5.6.130.0100.04318.22
5.6.120.0070.05020.95
5.6.110.0070.04320.98
5.6.100.0170.08021.00
5.6.90.0130.08021.12
5.6.80.0100.08020.45
5.5.350.0270.04720.43
5.5.340.0070.06017.97
5.5.330.0100.08320.30
5.5.320.0300.06320.20
5.5.310.0230.03320.36
5.5.300.0170.06017.98
5.5.290.0030.04018.01
5.5.280.0030.06720.73
5.5.270.0130.07720.65
5.5.260.0130.06020.77
5.5.250.0070.07020.61
5.5.240.0000.09020.15
5.4.450.0330.05019.48
5.4.440.0070.06719.63
5.4.430.0070.06019.31
5.4.420.0200.05019.44
5.4.410.0130.05719.30
5.4.400.0130.05319.16
5.4.390.0100.06019.32
5.4.380.0270.04718.57
5.4.370.0300.05718.78
5.4.360.0100.06018.79
5.4.350.0300.04718.47
5.4.340.0300.05318.46
5.4.320.0130.06318.77
5.4.310.0170.06018.86
5.4.300.0270.04718.80
5.4.290.0200.05318.70
5.4.280.0130.05718.52
5.4.270.0130.05718.62
5.4.260.0200.06018.77
5.4.250.0130.06018.61
5.4.240.0130.06018.40
5.4.230.0300.04018.77
5.4.220.0200.05318.48
5.4.210.0300.04718.71
5.4.200.0130.05316.73
5.4.190.0170.05718.59
5.4.180.0170.05718.73
5.4.170.0170.05318.79
5.4.160.0100.06318.67
5.4.150.0300.04718.54
5.4.140.0130.06316.26
5.4.130.0330.04716.44
5.4.120.0270.05016.35
5.4.110.0270.05016.16
5.4.100.0270.05016.46
5.4.90.0270.05016.45
5.4.80.0300.05716.16
5.4.70.0200.05716.26
5.4.60.0230.05316.19
5.4.50.0230.05016.23
5.4.40.0100.06016.42
5.4.30.0300.05716.25
5.4.20.0200.06716.26
5.4.10.0200.06716.14
5.4.00.0100.05715.72
5.3.290.0270.04714.84
5.3.280.0170.05714.61
5.3.270.0200.06014.76
5.3.260.0330.04314.62
5.3.250.0230.05314.76
5.3.240.0170.06714.61
5.3.230.0300.04714.81
5.3.220.0170.06314.63
5.3.210.0230.05014.62
5.3.200.0270.05014.72
5.3.190.0100.06314.59
5.3.180.0230.05014.67
5.3.170.0230.04714.74
5.3.160.0230.04714.78
5.3.150.0300.04314.66
5.3.140.0200.05314.60
5.3.130.0270.05014.59
5.3.120.0170.08014.64
5.3.110.0400.06014.64
5.3.100.0330.05714.26
5.3.90.0200.05014.02
5.3.80.0200.05714.07
5.3.70.0200.05014.00
5.3.60.0230.05014.23
5.3.50.0330.04314.00
5.3.40.0200.05314.17
5.3.30.0130.06314.02
5.3.20.0170.05013.74
5.3.10.0200.04713.67
5.3.00.0200.06713.66
5.2.170.0200.03711.18
5.2.160.0200.03311.20
5.2.150.0200.03711.18
5.2.140.0100.05311.14
5.2.130.0170.04011.14
5.2.120.0130.04011.13
5.2.110.0130.04311.04
5.2.100.0100.04711.25
5.2.90.0130.04311.03
5.2.80.0170.04011.01
5.2.70.0230.03311.06
5.2.60.0170.04011.08
5.2.50.0200.04310.94
5.2.40.0130.04010.94
5.2.30.0100.04711.13
5.2.20.0130.04310.96
5.2.10.0100.04310.83
5.2.00.0200.04310.71
5.1.60.0200.03310.00
5.1.50.0070.04010.03
5.1.40.0130.03310.05
5.1.30.0030.04310.42
5.1.20.0100.05710.36
5.1.10.0070.05010.14
5.1.00.0170.04710.10
5.0.50.0170.0238.57
5.0.40.0100.0278.44
5.0.30.0030.0478.24
5.0.20.0030.0308.38
5.0.10.0130.0238.26
5.0.00.0070.0478.27
4.4.90.0100.0206.55
4.4.80.0100.0206.55
4.4.70.0130.0176.55
4.4.60.0070.0236.55
4.4.50.0000.0276.55
4.4.40.0030.0406.55
4.4.30.0030.0276.55
4.4.20.0070.0276.55
4.4.10.0070.0336.55
4.4.00.0130.0276.55
4.3.110.0130.0276.55
4.3.100.0100.0236.55
4.3.90.0070.0206.55
4.3.80.0100.0306.55
4.3.70.0230.0106.55
4.3.60.0100.0236.55
4.3.50.0070.0236.55
4.3.40.0030.0376.55
4.3.30.0030.0236.55
4.3.20.0030.0236.55
4.3.10.0030.0236.55
4.3.00.0070.0237.59

preferences:
80.41 ms | 401 KiB | 5 Q