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run code in 300+ PHP versions simultaneously
<?php $class_name = "class@anonymous"."\\0".'/in/foo'; class_alias($class_name, 'MyAlias'); $d = get_declared_classes(); end($d); var_dump(current($d)); var_dump(new MyAlias);

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)
8.3.60.0100.01016.75
8.3.50.0130.00821.89
8.3.40.0140.00418.69
8.3.30.0150.00418.70
8.3.20.0070.00020.29
8.3.10.0040.00423.49
8.3.00.0050.00319.38
8.2.180.0120.00316.88
8.2.170.0000.01422.96
8.2.160.0000.01420.39
8.2.150.0080.00024.18
8.2.140.0050.00224.66
8.2.130.0060.00317.50
8.2.120.0040.00426.35
8.2.110.0060.00320.96
8.2.100.0120.00017.66
8.2.90.0080.00018.96
8.2.80.0030.00617.97
8.2.70.0030.00517.50
8.2.60.0060.00317.80
8.2.50.0000.00818.07
8.2.40.0030.00519.47
8.2.30.0000.00720.57
8.2.20.0030.00617.55
8.2.10.0020.00518.11
8.2.00.0000.00718.14
8.1.280.0100.00625.92
8.1.270.0000.01023.99
8.1.260.0040.00428.09
8.1.250.0040.00428.09
8.1.240.0080.00022.20
8.1.230.0030.00719.01
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0060.00317.23
8.1.190.0030.00517.35
8.1.180.0000.00718.10
8.1.170.0070.00018.71
8.1.160.0040.00422.00
8.1.150.0000.00718.89
8.1.140.0060.00319.51
8.1.130.0070.00017.65
8.1.120.0000.00717.30
8.1.110.0000.00717.43
8.1.100.0040.00417.42
8.1.90.0040.00417.41
8.1.80.0000.00817.44
8.1.70.0070.00017.39
8.1.60.0030.00517.56
8.1.50.0000.00817.52
8.1.40.0050.00317.61
8.1.30.0080.00017.54
8.1.20.0040.00417.52
8.1.10.0040.00417.62
8.1.00.0040.00417.55
8.0.300.0040.00420.38
8.0.290.0000.00716.63
8.0.280.0000.00718.35
8.0.270.0040.00717.21
8.0.260.0030.00317.19
8.0.250.0070.00016.97
8.0.240.0030.00317.02
8.0.230.0050.00316.83
8.0.220.0030.00316.90
8.0.210.0050.00316.77
8.0.200.0000.00716.93
8.0.190.0000.00817.00
8.0.180.0080.00016.89
8.0.170.0040.00416.91
8.0.160.0000.00816.99
8.0.150.0000.00716.86
8.0.140.0040.00416.84
8.0.130.0000.00613.25
8.0.120.0040.00416.75
8.0.110.0050.00316.96
8.0.100.0020.00516.95
8.0.90.0040.00416.85
8.0.80.0090.00316.77
8.0.70.0030.00516.82
8.0.60.0040.00416.74
8.0.50.0080.00016.88
8.0.30.0100.00616.87
8.0.20.0100.00717.29
8.0.10.0080.00016.89
8.0.00.0090.00816.75
7.4.330.0020.00216.74
7.4.320.0040.00416.46
7.4.300.0060.00016.64
7.4.290.0030.00316.60
7.4.280.0040.00416.40
7.4.270.0000.00716.48
7.4.260.0030.00316.63
7.4.250.0040.00416.50
7.4.240.0030.00416.60
7.4.230.0070.00016.35
7.4.220.0050.01316.52
7.4.210.0070.00516.52
7.4.200.0080.00016.66
7.4.190.0020.00516.67
7.4.180.0040.00416.56
7.4.160.0100.00216.61
7.4.150.0070.00617.02
7.4.140.0060.01117.42
7.4.130.0130.00116.48
7.4.120.0050.00916.49
7.4.110.0100.00316.48
7.4.100.0060.00716.64
7.4.90.0060.00616.53
7.4.80.0070.00517.88
7.4.70.0100.00616.44
7.4.60.0040.00916.40
7.4.50.0030.00816.47
7.4.40.0060.00716.41
7.4.30.0080.00416.29
7.4.20.0060.00316.37
7.4.10.0050.00316.57
7.4.00.0060.00515.70
7.3.330.0050.00013.12
7.3.320.0030.00313.15
7.3.310.0070.00016.40
7.3.300.0060.00016.30
7.3.290.0040.00416.27
7.3.280.0110.00516.24
7.3.270.0080.00416.78
7.3.260.0090.00516.41
7.3.250.0030.00516.30
7.3.240.0100.00616.29
7.3.230.0030.00916.33
7.3.220.0070.00016.04
7.3.210.0110.00416.16
7.3.200.0050.00716.29
7.3.190.0100.00516.34
7.3.180.0070.00516.15
7.3.170.0100.00416.16
7.3.160.0090.00316.19
7.3.150.0040.00416.14
7.3.140.0000.00716.22
7.3.130.0030.00516.25
7.3.120.0040.00915.57
7.3.110.0060.00515.33
7.3.100.0080.00315.55
7.3.90.0040.00615.66
7.3.80.0000.01015.61
7.3.70.0020.00715.46
7.3.60.0010.00915.52
7.3.50.0050.00315.50
7.3.40.0050.00515.44
7.3.30.0060.00215.57
7.3.20.0070.00417.45
7.3.10.0040.00717.34
7.3.00.0010.00817.25
7.2.340.0080.00016.32
7.2.330.0070.00516.31
7.2.320.0070.00616.45
7.2.310.0120.00416.56
7.2.300.0080.00516.45
7.2.290.0060.00916.51
7.2.280.0030.00616.27
7.2.270.0080.00016.18
7.2.260.0000.00716.26
7.2.250.0060.00316.33
7.2.240.0070.00515.43
7.2.230.0050.00615.58
7.2.220.0050.00515.70
7.2.210.0040.00715.60
7.2.200.0020.00815.58
7.2.190.0000.00915.70
7.2.180.0020.00915.53
7.2.170.0000.00815.67
7.2.160.0040.00715.65
7.2.150.0090.00417.44
7.2.140.0060.00517.65
7.2.130.0050.00417.54
7.2.120.0050.00817.55
7.2.110.0050.00917.48
7.2.100.0060.00817.52
7.2.90.0050.00517.69
7.2.80.0030.00617.62
7.2.70.0100.00117.52
7.2.60.0030.00817.19
7.2.50.0000.01117.58
7.2.40.0060.00417.58
7.2.30.0060.00617.54
7.2.20.0050.00617.71
7.2.10.0050.00417.55
7.2.00.0040.00817.62
7.1.330.0060.00616.67
7.1.320.0050.00516.44
7.1.310.0050.00516.57
7.1.300.0020.00916.52
7.1.290.0030.00716.31
7.1.280.0060.00216.33
7.1.270.0080.00416.55
7.1.260.0050.00316.43
7.1.250.0070.00316.41
7.1.240.0050.00217.25
7.1.230.0040.00417.15
7.1.220.0000.00717.11
7.1.210.0000.00817.23
7.1.200.0060.00416.57
7.1.190.0040.00417.20
7.1.180.0050.00317.11
7.1.170.0060.00317.11
7.1.160.0100.00017.26
7.1.150.0060.00317.26
7.1.140.0030.00617.09
7.1.130.0090.00017.20
7.1.120.0030.00517.29
7.1.110.0050.00317.25
7.1.100.0050.00317.23
7.1.90.0030.00517.21
7.1.80.0090.00017.32
7.1.70.0060.00217.08
7.1.60.0100.00518.30
7.1.50.0130.00217.08
7.1.40.0080.00017.37
7.1.30.0070.00317.30
7.1.20.0090.00217.29
7.1.10.0080.00317.20
7.1.00.0020.04019.69
7.0.330.0040.00416.98
7.0.320.0070.00016.98
7.0.310.0040.00416.95
7.0.300.0000.00716.99
7.0.290.0070.00016.98
7.0.280.0020.00517.01
7.0.270.0020.00516.86
7.0.260.0030.00316.98
7.0.250.0070.00017.02
7.0.240.0050.00317.02
7.0.230.0030.00617.15
7.0.220.0000.00916.92
7.0.210.0030.00316.86
7.0.200.0070.00715.91
7.0.190.0000.00717.09
7.0.180.0000.00717.05
7.0.170.0070.00017.15
7.0.160.0020.00416.99
7.0.150.0030.00516.95
7.0.140.0070.00016.83
7.0.130.0040.00416.98
7.0.120.0050.00216.90
7.0.110.0000.00716.99
7.0.100.0040.00216.80
7.0.90.0000.00816.80
7.0.80.0000.00816.78
7.0.70.0000.00816.91
7.0.60.0050.02718.50
7.0.50.0050.03017.35
7.0.40.0050.02418.56
7.0.30.0300.03518.55
7.0.20.0140.02518.55
7.0.10.0060.03818.61
7.0.00.0020.04718.53
5.6.400.0040.00415.68
5.6.390.0040.00415.90
5.6.380.0050.00215.94
5.6.370.0030.00515.88
5.6.360.0080.00015.74
5.6.350.0040.00415.87
5.6.340.0040.00415.70
5.6.330.0040.00415.79
5.6.320.0050.00315.67
5.6.310.0030.00615.74
5.6.300.0030.00615.62
5.6.290.0030.00315.75
5.6.280.0030.02218.42
5.6.270.0050.00215.77
5.6.260.0030.00315.63
5.6.250.0070.00015.75
5.6.240.0030.00315.65
5.6.230.0030.00315.81
5.6.220.0060.00015.74
5.6.210.0100.03018.08
5.6.200.0120.03816.94
5.6.190.0080.04118.13
5.6.180.0190.03618.13
5.6.170.0190.03918.13
5.6.160.0090.02018.27
5.6.150.0080.01816.99
5.6.140.0070.02217.01
5.6.130.0030.04316.96
5.6.120.0050.02818.40
5.6.110.0080.04118.40
5.6.100.0030.03818.44
5.6.90.0080.04018.37
5.6.80.0050.04018.07
5.6.70.0040.00415.88
5.6.60.0080.00016.01
5.6.50.0000.00815.66
5.6.40.0040.00415.76
5.6.30.0070.00015.80
5.6.20.0000.00715.84
5.6.10.0000.00615.84
5.6.00.0030.00515.58
5.5.380.0000.00716.00
5.5.370.0000.00715.76
5.5.360.0030.00315.70
5.5.350.1570.02218.03
5.5.340.0040.02016.80
5.5.330.0130.03818.16
5.5.320.0000.05017.94
5.5.310.0120.02317.88
5.5.300.0080.03716.79
5.5.290.0050.03216.86
5.5.280.0130.01718.34
5.5.270.0070.03518.22
5.5.260.0060.04218.18
5.5.250.0080.03718.06
5.5.240.0430.03317.93
5.5.230.0030.00315.77
5.5.220.0070.00015.61
5.5.210.0000.00715.76
5.5.200.0050.00215.59
5.5.190.0080.00015.55
5.5.180.0030.00515.59
5.5.170.0060.00015.59
5.5.160.0040.00415.56
5.5.150.0000.00715.32
5.5.140.0030.00515.46
5.5.130.0000.00715.42
5.5.120.0050.00315.43
5.5.110.0030.00315.42
5.5.100.0000.00815.77
5.5.90.0080.00015.48
5.5.80.0040.00415.66
5.5.70.0040.00415.83
5.5.60.0000.00615.75
5.5.50.0040.00415.75
5.5.40.0070.00015.52
5.5.30.0080.00015.70
5.5.20.0070.00015.66
5.5.10.0070.00015.65
5.5.00.0060.00015.44

preferences:
57.19 ms | 401 KiB | 5 Q