3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface I {} var_dump(class_exists('cI')); var_dump(class_exists('C')); class cI implements I {} class C {} var_dump(class_exists('cI')); var_dump(class_exists('C'));

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)
8.3.70.0090.00616.50
8.3.60.0150.00016.63
8.3.50.0090.00822.15
8.3.40.0070.00718.29
8.3.30.0100.01018.91
8.3.20.0050.00320.17
8.3.10.0000.00823.65
8.3.00.0040.00420.96
8.2.180.0090.00618.29
8.2.170.0070.00722.96
8.2.160.0100.00320.20
8.2.150.0080.00024.18
8.2.140.0030.00624.66
8.2.130.0040.00426.16
8.2.120.0040.00420.52
8.2.110.0080.00022.20
8.2.100.0110.00017.78
8.2.90.0040.00419.09
8.2.80.0040.00417.97
8.2.70.0000.00917.63
8.2.60.0000.00917.91
8.2.50.0040.00418.07
8.2.40.0000.00819.82
8.2.30.0000.00720.03
8.2.20.0020.00517.67
8.2.10.0000.00817.96
8.2.00.0030.00617.65
8.1.280.0140.00725.92
8.1.270.0000.00823.87
8.1.260.0080.00026.35
8.1.250.0000.00928.09
8.1.240.0080.00023.73
8.1.230.0110.00019.15
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0060.00317.11
8.1.190.0080.00017.23
8.1.180.0000.00918.10
8.1.170.0040.00418.43
8.1.160.0000.00722.06
8.1.150.0030.00518.65
8.1.140.0040.00417.42
8.1.130.0030.00317.76
8.1.120.0000.00717.45
8.1.110.0000.00817.29
8.1.100.0040.00417.28
8.1.90.0040.00417.28
8.1.80.0040.00417.35
8.1.70.0000.00717.35
8.1.60.0040.00417.54
8.1.50.0030.00517.41
8.1.40.0080.00017.35
8.1.30.0000.00817.51
8.1.20.0060.00317.50
8.1.10.0000.00717.36
8.1.00.0000.00717.34
8.0.300.0080.00018.77
8.0.290.0040.00417.05
8.0.280.0030.00318.38
8.0.270.0050.00317.18
8.0.260.0030.00317.10
8.0.250.0050.00216.94
8.0.240.0000.00716.86
8.0.230.0000.00716.79
8.0.220.0080.00016.83
8.0.210.0040.00416.71
8.0.200.0030.00316.89
8.0.190.0000.00716.77
8.0.180.0040.00416.70
8.0.170.0070.00016.73
8.0.160.0040.00416.80
8.0.150.0030.00316.66
8.0.140.0000.00716.77
8.0.130.0000.00513.22
8.0.120.0080.00016.77
8.0.110.0040.00416.83
8.0.100.0060.00316.64
8.0.90.0000.00716.83
8.0.80.0100.00716.81
8.0.70.0070.00016.88
8.0.60.0040.00416.84
8.0.50.0040.00416.93
8.0.30.0110.00716.91
8.0.20.0100.01217.40
8.0.10.0000.00716.96
8.0.00.0120.00516.62
7.4.330.0060.00015.00
7.4.320.0020.00516.53
7.4.300.0030.00616.42
7.4.290.0000.00716.51
7.4.280.0040.00416.43
7.4.270.0030.00516.45
7.4.260.0070.00016.54
7.4.250.0000.00716.49
7.4.240.0030.00416.41
7.4.230.0000.00716.27
7.4.220.0120.00916.34
7.4.210.0070.00816.46
7.4.200.0030.00316.54
7.4.190.0000.00716.56
7.4.160.0100.00716.28
7.4.150.0060.01017.40
7.4.140.0120.00917.86
7.4.130.0170.00516.29
7.4.120.0120.00616.33
7.4.110.0140.00816.35
7.4.100.0100.00716.50
7.4.90.0070.01016.30
7.4.80.0120.01019.39
7.4.70.0140.00316.46
7.4.60.0030.01516.42
7.4.50.0000.00816.61
7.4.40.0180.00316.38
7.4.30.0110.00616.60
7.4.00.0070.00715.12
7.3.330.0060.00012.95
7.3.320.0060.00013.11
7.3.310.0000.00716.17
7.3.300.0000.00716.02
7.3.290.0100.00416.14
7.3.280.0060.01216.14
7.3.270.0080.00817.40
7.3.260.0060.01616.43
7.3.250.0080.01216.26
7.3.240.0090.00916.48
7.3.230.0080.00816.39
7.3.210.0120.00416.43
7.3.200.0100.01019.39
7.3.190.0040.01616.35
7.3.180.0060.01316.32
7.3.170.0090.00616.27
7.3.160.0130.00316.44
7.3.120.0070.00414.64
7.2.330.0090.00916.42
7.2.320.0090.01216.39
7.2.310.0030.01516.52
7.2.300.0120.00616.64
7.2.290.0060.01016.30
7.2.00.0000.01319.42
7.1.100.0120.00817.86
7.1.70.0030.00617.04
7.1.60.0090.01519.46
7.1.50.0130.01616.77
7.1.00.0130.06722.48
7.0.200.0030.00616.48
7.0.140.0070.07022.19
7.0.60.0070.08021.77
7.0.50.0100.07017.96
7.0.40.0000.09319.96
7.0.30.0400.07020.23
7.0.20.0400.07020.09
7.0.10.0170.08020.20
7.0.00.0070.06720.25
5.6.280.0000.07720.78
5.6.210.0100.08020.61
5.6.200.0070.08718.23
5.6.190.0100.07720.48
5.6.180.0230.06720.57
5.6.170.0170.08720.58
5.6.160.0070.08320.49
5.6.150.0000.04318.27
5.6.140.0030.04018.23
5.6.130.0100.07318.21
5.6.120.0030.06721.12
5.6.110.0100.07721.02
5.6.100.0070.06321.02
5.6.90.0130.08020.96
5.6.80.0070.06020.35
5.5.350.4230.03720.44
5.5.340.0000.04317.98
5.5.330.0070.07020.21
5.5.320.0630.07320.38
5.5.310.0270.08020.51
5.5.300.0070.08317.97
5.5.290.0070.07717.98
5.5.280.0070.06020.88
5.5.270.0070.08720.96
5.5.260.0100.08020.76
5.5.250.0070.08720.66
5.5.240.0100.07320.25
5.4.450.4470.04319.59
5.4.440.3600.04019.55
5.4.430.4530.03719.55
5.4.420.4530.04019.39
5.4.410.4530.04319.34
5.4.400.4230.05019.16
5.4.390.3830.04019.20
5.4.380.3730.03719.04
5.4.370.3400.04018.93
5.4.360.3270.04019.18
5.4.350.3800.03719.23
5.4.340.3830.03319.15
5.4.320.3570.04019.27
5.4.310.3530.03719.23
5.4.300.3530.03719.14
5.4.290.3570.03319.06
5.4.280.3670.04019.14
5.4.270.4000.03719.05
5.4.260.3530.03719.23
5.4.250.4370.04319.05
5.4.240.3800.02719.12
5.4.230.4330.03718.95
5.4.220.4030.04719.04
5.4.210.4000.04019.14
5.4.200.4030.03319.22
5.4.190.4030.04018.96
5.4.180.3730.03319.22
5.4.170.4070.03719.21
5.4.160.4430.04019.11
5.4.150.4770.03319.02
5.4.140.4430.03316.41
5.4.130.4700.03016.49
5.4.120.4170.03016.54
5.4.110.0000.04316.42
5.4.100.1330.03716.49
5.4.90.2770.03016.43
5.4.80.3500.03316.54
5.4.70.3430.03716.59
5.4.60.3300.03016.49
5.4.50.3300.03316.22
5.4.40.3030.03716.52
5.4.30.3130.02716.23
5.4.20.3630.03716.19
5.4.10.3600.03716.49
5.4.00.2770.04315.80
5.3.290.3670.03714.67
5.3.280.3900.03014.66
5.3.270.4330.03714.59
5.3.260.4430.03714.59
5.3.250.4570.04014.74
5.3.240.4630.03714.65
5.3.230.3670.04314.59
5.3.220.1770.03714.72
5.3.210.0100.03014.72
5.3.200.0000.04014.55
5.3.190.2800.04714.45
5.3.180.3070.04714.55
5.3.170.3530.03714.57
5.3.160.2870.04014.58
5.3.150.3400.02714.62
5.3.140.2700.04014.62
5.3.130.3330.03714.69
5.3.120.3600.03314.70
5.3.110.2970.04014.55
5.3.100.3600.03014.02
5.3.90.3870.03714.16
5.3.80.3800.03714.06
5.3.70.0100.05314.17
5.3.60.0200.06014.00
5.3.50.0100.07014.01
5.3.40.4270.04313.96
5.3.30.4170.03713.94
5.3.20.4430.03313.73
5.3.10.3670.03713.65
5.3.00.3870.03313.69
5.2.170.1670.05011.02
5.2.160.3470.02711.20
5.2.150.3230.02711.16
5.2.140.3970.02011.11
5.2.130.3430.02711.25
5.2.120.3500.03011.06
5.2.110.3330.02711.25
5.2.100.3330.03311.19
5.2.90.3400.02311.13
5.2.80.2930.03011.25
5.2.70.3300.03011.27
5.2.60.3570.02711.09
5.2.50.3900.02311.02
5.2.40.3000.02711.14
5.2.30.2400.02711.13
5.2.20.2730.02710.94
5.2.10.2700.03010.74
5.2.00.2970.02310.77
5.1.60.2570.02710.16
5.1.50.2770.0179.97
5.1.40.2730.02310.04
5.1.30.2830.02310.25
5.1.20.2900.02310.24
5.1.10.3170.0179.97
5.1.00.3230.02010.02
5.0.50.1470.0238.56
5.0.40.1170.0208.42
5.0.30.1430.0378.16
5.0.20.1530.0208.16
5.0.10.1300.0178.16
5.0.00.1430.0308.22
4.4.90.1500.0176.07
4.4.80.1670.0136.07
4.4.70.1600.0176.07
4.4.60.1270.0136.07
4.4.50.1530.0136.07
4.4.40.1530.0306.07
4.4.30.1170.0176.07
4.4.20.1970.0136.07
4.4.10.1530.0206.07
4.4.00.1430.0276.07
4.3.110.1570.0206.07
4.3.100.1300.0206.07
4.3.90.1200.0136.07
4.3.80.1670.0236.07
4.3.70.1570.0176.07
4.3.60.1700.0136.07
4.3.50.1400.0176.07
4.3.40.1670.0276.07
4.3.30.0570.0276.07
4.3.20.0970.0236.07
4.3.10.0930.0236.07
4.3.00.1000.0236.07

preferences:
52.12 ms | 401 KiB | 5 Q