3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace RN\Pitt { class Amt { } } namespace { $obj = new RN\Pitt\Amt(); var_dump($obj); $a = 'Pitt'; $b = 'Amt'; $class = 'RN\\' . $a . '\\' . $b; $obj = new $class(); var_dump($obj); }

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)
8.3.60.0100.00718.07
8.3.50.0120.00621.92
8.3.40.0110.00718.73
8.3.30.0140.00018.78
8.3.20.0070.00020.20
8.3.10.0050.00321.65
8.3.00.0090.00017.68
8.2.180.0100.00618.54
8.2.170.0130.00322.96
8.2.160.0110.00320.52
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0060.00321.00
8.2.110.0060.00321.07
8.2.100.0080.00317.84
8.2.90.0060.00318.09
8.2.80.0040.00420.55
8.2.70.0040.00417.50
8.2.60.0080.00017.93
8.2.50.0030.00618.07
8.2.40.0060.00318.22
8.2.30.0060.00317.98
8.2.20.0040.00417.55
8.2.10.0040.00418.07
8.2.00.0000.00717.79
8.1.280.0110.00725.92
8.1.270.0040.00423.97
8.1.260.0000.00726.35
8.1.250.0030.00628.09
8.1.240.0060.00320.86
8.1.230.0080.00320.91
8.1.220.0030.00617.74
8.1.210.0050.00318.97
8.1.200.0060.00317.35
8.1.190.0050.00317.23
8.1.180.0030.00518.10
8.1.170.0080.00018.66
8.1.160.0000.00821.97
8.1.150.0070.00018.95
8.1.140.0000.00817.46
8.1.130.0030.00317.86
8.1.120.0070.00017.37
8.1.110.0050.00317.29
8.1.100.0030.00317.39
8.1.90.0040.00317.44
8.1.80.0000.00717.34
8.1.70.0000.00717.31
8.1.60.0060.00317.63
8.1.50.0030.00517.38
8.1.40.0030.00517.40
8.1.30.0000.00917.61
8.1.20.0000.00817.65
8.1.10.0060.00317.43
8.1.00.0050.00217.36
8.0.300.0000.00820.09
8.0.290.0100.00316.58
8.0.280.0000.00718.44
8.0.270.0000.00717.25
8.0.260.0030.00317.20
8.0.250.0070.00016.92
8.0.240.0000.00716.84
8.0.230.0000.00716.92
8.0.220.0000.00716.88
8.0.210.0040.00416.77
8.0.200.0060.00316.95
8.0.190.0000.00816.86
8.0.180.0040.00416.94
8.0.170.0080.00016.92
8.0.160.0030.00516.93
8.0.150.0080.00016.72
8.0.140.0000.00716.73
8.0.130.0000.00513.37
8.0.120.0000.00716.88
8.0.110.0000.00716.78
8.0.100.0030.00516.94
8.0.90.0070.00016.88
8.0.80.0080.00816.85
8.0.70.0070.00016.79
8.0.60.0040.00416.79
8.0.50.0050.00316.75
8.0.30.0060.01317.05
8.0.20.0100.01017.40
8.0.10.0080.00016.88
8.0.00.0130.00716.57
7.4.330.0000.00515.14
7.4.320.0000.00616.40
7.4.300.0000.00616.48
7.4.290.0040.00416.58
7.4.280.0000.00716.50
7.4.270.0050.00316.50
7.4.260.0000.00716.55
7.4.250.0040.00416.53
7.4.240.0020.00516.61
7.4.230.0030.00316.32
7.4.220.0030.00316.63
7.4.210.0140.00316.38
7.4.200.0030.00516.64
7.4.160.0110.00516.53
7.4.150.0190.00617.40
7.4.140.0110.00617.86
7.4.130.0110.00816.59
7.4.120.0080.00816.38
7.4.110.0130.00316.45
7.4.100.0090.00916.28
7.4.90.0090.00916.33
7.4.80.0080.00819.39
7.4.70.0120.00416.41
7.4.60.0090.00916.53
7.4.50.0000.00616.56
7.4.40.0120.00416.50
7.4.30.0030.01316.48
7.4.00.0030.01414.98
7.3.330.0070.00013.13
7.3.320.0030.00313.13
7.3.310.0000.00716.39
7.3.300.0070.00016.32
7.3.290.0090.00616.43
7.3.280.0090.00816.36
7.3.270.0040.01317.40
7.3.260.0100.00716.42
7.3.250.0100.00816.33
7.3.240.0090.00816.45
7.3.230.0080.00816.46
7.3.210.0100.00716.30
7.3.200.0100.00619.39
7.3.190.0180.00516.53
7.3.180.0130.01016.64
7.3.170.0060.01016.44
7.3.160.0190.00316.52
7.3.120.0070.00714.56
7.3.10.0070.00416.38
7.3.00.0090.00716.30
7.2.330.0150.00316.37
7.2.320.0080.01216.72
7.2.310.0100.01016.63
7.2.300.0030.01316.59
7.2.290.0120.00816.66
7.2.130.0060.00916.80
7.2.120.0060.00816.78
7.2.110.0060.00916.93
7.2.100.0100.00516.75
7.2.90.0060.01016.68
7.2.80.0100.00616.80
7.2.70.0080.00616.80
7.2.60.0100.00516.94
7.2.50.0060.00616.77
7.2.40.0100.00316.79
7.2.30.0100.00716.63
7.2.20.0070.00916.65
7.2.10.0020.01016.67
7.2.00.0040.00817.76
7.1.250.0140.00315.66
7.1.240.0120.00615.84
7.1.230.0120.00615.61
7.1.220.0120.00415.59
7.1.210.0070.00715.75
7.1.200.0120.00015.94
7.1.190.0070.00715.69
7.1.180.0040.00815.72
7.1.170.0130.00315.79
7.1.160.0090.00915.83
7.1.150.0100.00315.83
7.1.140.0090.00315.49
7.1.130.0070.00715.60
7.1.120.0070.00715.81
7.1.110.0050.00615.83
7.1.100.0030.01017.11
7.1.90.0080.00315.70
7.1.80.0090.00615.68
7.1.70.0080.00216.38
7.1.60.0090.01017.48
7.1.50.0070.00916.37
7.1.40.0110.00415.52
7.1.30.0110.00415.85
7.1.20.0070.00715.82
7.1.10.0130.00015.74
7.1.00.0050.04219.10
7.0.330.0070.00715.09
7.0.320.0090.00615.61
7.0.310.0070.01015.34
7.0.300.0100.00715.04
7.0.290.0040.00815.55
7.0.280.0150.00015.22
7.0.270.0070.00715.38
7.0.260.0070.00715.19
7.0.250.0100.00715.10
7.0.240.0110.00315.25
7.0.230.0060.01015.30
7.0.220.0110.00415.41
7.0.210.0060.00915.24
7.0.200.0040.00816.16
7.0.190.0070.00715.15
7.0.180.0080.00315.29
7.0.170.0000.01415.16
7.0.160.0030.00915.33
7.0.150.0140.00415.30
7.0.140.0060.04018.65
7.0.130.0110.00415.22
7.0.120.0080.00415.54
7.0.110.0060.00915.34
7.0.100.0040.00815.30
7.0.90.0120.00015.21
7.0.80.0100.00315.45
7.0.70.0100.00315.50
7.0.60.0130.03317.78
7.0.50.0050.04316.64
7.0.40.0020.04816.83
7.0.30.0160.02716.82
7.0.20.0210.03516.81
7.0.10.0030.04516.84
7.0.00.0020.04716.78
5.6.380.0040.00814.32
5.6.370.0070.00713.88
5.6.360.0030.00914.02
5.6.350.0090.00013.98
5.6.340.0000.01114.39
5.6.330.0030.00614.25
5.6.320.0040.00814.46
5.6.310.0000.01014.02
5.6.300.0040.00814.61
5.6.290.0090.00314.30
5.6.280.0050.04017.81
5.6.270.0030.00914.58
5.6.260.0070.00314.08
5.6.250.0070.00414.39
5.6.240.0060.00313.97
5.6.230.0070.00314.10
5.6.220.0070.00714.34
5.6.210.0070.03717.29
5.6.200.0000.02616.06
5.6.190.0030.02517.26
5.6.180.0140.04217.46
5.6.170.0100.03617.25
5.6.160.0030.04517.43
5.6.150.0060.02216.27
5.6.140.0060.04516.37
5.6.130.0060.04316.00
5.6.120.0050.02217.58
5.6.110.0080.04717.59
5.6.100.0120.04017.67
5.6.90.0050.03317.60
5.6.80.0020.03217.11
5.6.70.0070.00714.44
5.6.60.0070.00713.89
5.6.50.0000.01513.93
5.6.40.0070.00713.86
5.6.30.0090.00314.00
5.6.20.0050.00314.41
5.6.10.0070.00714.11
5.6.00.0030.00914.32
5.5.380.0040.00811.14
5.5.370.0050.00311.09
5.5.360.0030.00311.38
5.5.350.0130.02715.78
5.5.340.0030.04214.54
5.5.330.0050.02315.72
5.5.320.0050.02715.78
5.5.310.0120.02715.65
5.5.300.0010.02814.54
5.5.290.0090.03814.48
5.5.280.0020.03016.06
5.5.270.0060.04316.11
5.5.260.0020.03415.96
5.5.250.0080.03815.88
5.5.240.0050.03615.74
5.5.230.0030.00311.18
5.5.220.0000.01111.04
5.5.210.0060.00311.14
5.5.200.0000.01111.00
5.5.190.0000.01111.01
5.5.180.0040.00711.00
5.5.170.0030.00611.00
5.5.160.0000.00511.05
5.5.150.0060.00611.05
5.5.140.0030.00611.26
5.5.130.0040.00411.12
5.5.120.0040.00711.05
5.5.110.0050.00311.00
5.5.100.0030.00911.00
5.5.90.0100.00011.04
5.5.80.0090.00311.09
5.5.70.0000.01211.00
5.5.60.0040.00711.14
5.5.50.0070.00211.09
5.5.40.0060.00611.21
5.5.30.0000.00811.00
5.5.20.0040.00411.00
5.5.10.0080.00011.14
5.5.00.0070.00311.17
5.4.450.0460.03115.24
5.4.440.0080.02815.24
5.4.430.0380.03015.29
5.4.420.0620.02615.15
5.4.410.0350.03715.10
5.4.400.0130.03614.77
5.4.390.0170.03014.89
5.4.380.0030.03514.89
5.4.370.0050.03214.74
5.4.360.0070.02214.89
5.4.350.0090.02211.54
5.4.340.0090.02211.53
5.4.330.0070.00711.00
5.4.320.0060.02211.75
5.4.310.0100.02111.75
5.4.300.0080.02311.76
5.4.290.0090.02311.76
5.4.280.0090.01811.70
5.4.270.0090.02411.70
5.4.260.0120.02011.70
5.4.250.0030.02711.73
5.4.240.0080.02111.70
5.4.230.0140.01711.69
5.4.220.0080.02511.74
5.4.210.0040.02611.73
5.4.200.0070.02611.70
5.4.190.0090.02611.69
5.4.180.0090.02211.69
5.4.170.0070.02211.70
5.4.160.0050.02411.70
5.4.150.0070.02711.69
5.4.140.0110.02111.54
5.4.130.0100.01911.53
5.4.120.0080.02111.51
5.4.110.0080.02611.57
5.4.100.0120.02111.51
5.4.90.0120.02111.51
5.4.80.0160.03211.54
5.4.70.0080.02011.62
5.4.60.0100.02911.57
5.4.50.0070.02211.55
5.4.40.0060.02511.56
5.4.30.0090.01911.50
5.4.20.0050.02311.49
5.4.10.0070.02011.53
5.4.00.0080.02211.32
5.3.290.0110.02211.90
5.3.280.0050.02511.86
5.3.270.0110.02211.87
5.3.260.0040.02511.86
5.3.250.0070.02011.86
5.3.240.0020.02911.86
5.3.230.0060.02311.86
5.3.220.0100.01811.84
5.3.210.0070.02211.84
5.3.200.0050.02511.84
5.3.190.0080.02211.84
5.3.180.0080.02611.84
5.3.170.0040.02511.84
5.3.160.0120.02011.84
5.3.150.0110.02311.84
5.3.140.0070.02211.83
5.3.130.0050.02711.83
5.3.120.0040.02511.83
5.3.110.0090.02611.83
5.3.100.0050.02311.56
5.3.90.0060.02011.55
5.3.80.0040.02311.54
5.3.70.0020.02411.54
5.3.60.0050.02211.54
5.3.50.0090.01911.51
5.3.40.0090.01811.51
5.3.30.0070.02211.49
5.3.20.0040.02511.38
5.3.10.0060.01811.37
5.3.00.0080.01811.36
5.2.170.0050.01710.09
5.2.160.0030.01910.09
5.2.150.0080.01410.09
5.2.140.0050.01910.09
5.2.130.0020.02010.07
5.2.120.0040.01710.07
5.2.110.0050.01610.08
5.2.100.0050.01710.07
5.2.90.0050.01810.07
5.2.80.0060.01610.07
5.2.70.0020.02010.07
5.2.60.0060.01610.05
5.2.50.0030.01910.03
5.2.40.0020.01710.02
5.2.30.0040.01810.01
5.2.20.0060.01710.00
5.2.10.0060.0179.96
5.2.00.0060.0169.89
5.1.60.0070.0129.54
5.1.50.0050.0149.53
5.1.40.0040.0159.53
5.1.30.0080.0149.70
5.1.20.0020.0189.71
5.1.10.0040.0159.57
5.1.00.0070.0119.57
5.0.50.0040.0118.81
5.0.40.0010.0158.74
5.0.30.0050.0188.65
5.0.20.0020.0168.63
5.0.10.0040.0108.62
5.0.00.0040.0178.62
4.4.90.0050.0097.89
4.4.80.0040.0087.88
4.4.70.0020.0117.88
4.4.60.0030.0117.88
4.4.50.0030.0097.89
4.4.40.0010.0157.86
4.4.30.0040.0087.88
4.4.20.0040.0087.92
4.4.10.0040.0107.93
4.4.00.0030.0157.88
4.3.110.0030.0107.84
4.3.100.0030.0107.83
4.3.90.0010.0127.82
4.3.80.0030.0147.79
4.3.70.0030.0097.82
4.3.60.0020.0117.81
4.3.50.0020.0107.81
4.3.40.0030.0147.77
4.3.30.0020.0117.14
4.3.20.0030.0107.13
4.3.10.0020.0127.11
4.3.00.0060.0149.08

preferences:
44.9 ms | 401 KiB | 5 Q