3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace FirstNamespace { class TestClass {} } namespace AnotherNamespace { use FirstNamespace\Testclass; // wrong case in last segment var_dump(TestClass::class); var_dump(get_class(new TestClass())); } namespace YetAnotherNamespace { use Firstnamespace\TestClass; // wrong case in first segment var_dump(TestClass::class); var_dump(get_class(new TestClass())); }

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)
8.3.60.0060.01216.50
8.3.50.0120.00617.92
8.3.40.0030.01318.46
8.3.30.0070.00718.72
8.3.20.0040.00421.88
8.3.10.0080.00023.48
8.3.00.0040.00419.56
8.2.180.0040.01116.63
8.2.170.0090.00622.96
8.2.160.0150.00019.21
8.2.150.0040.00425.66
8.2.140.0070.00024.66
8.2.130.0060.00320.22
8.2.120.0040.00426.35
8.2.110.0060.00320.92
8.2.100.0090.00317.75
8.2.90.0060.00318.80
8.2.80.0050.00317.97
8.2.70.0000.00817.50
8.2.60.0030.00617.63
8.2.50.0090.00718.86
8.2.40.0040.00419.23
8.2.30.0090.00418.30
8.2.20.0120.00217.71
8.2.10.0080.00717.68
8.2.00.0060.00717.67
8.1.280.0040.01125.92
8.1.270.0050.00218.75
8.1.260.0000.00726.35
8.1.250.0070.00028.09
8.1.240.0000.00923.96
8.1.230.0080.00317.58
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0080.00017.11
8.1.190.0030.00617.00
8.1.180.0090.00018.10
8.1.170.0020.00517.62
8.1.160.0080.00518.02
8.1.150.0080.00418.06
8.1.140.0040.00818.38
8.1.130.0080.00218.04
8.1.120.0020.00617.29
8.1.110.0030.00517.35
8.1.100.0010.00617.40
8.1.90.0030.00517.38
8.1.80.0080.00417.32
8.1.70.0070.00417.34
8.1.60.0100.00417.42
8.1.50.0070.00517.38
8.1.40.0070.00617.39
8.1.30.0080.00717.49
8.1.20.0120.00217.47
8.1.10.0100.00317.40
8.1.00.0020.00717.36
8.0.300.0060.00318.77
8.0.290.0060.00316.63
8.0.280.0020.00517.48
8.0.270.0040.00316.95
8.0.260.0000.00717.02
8.0.250.0050.00416.88
8.0.240.0020.00716.79
8.0.230.0050.00416.70
8.0.220.0060.00516.65
8.0.210.0050.00616.69
8.0.200.0090.00216.73
8.0.190.0060.00516.67
8.0.180.0020.00816.82
8.0.170.0050.00716.67
8.0.160.0060.00616.69
8.0.150.0040.00816.68
8.0.140.0070.00416.61
8.0.130.0060.00514.90
8.0.120.0080.00316.72
8.0.110.0000.00916.74
8.0.100.0050.00516.69
8.0.90.0030.00716.64
8.0.80.0100.00416.69
8.0.70.0060.00516.69
8.0.60.0030.00716.68
8.0.50.0020.00716.71
8.0.30.0100.00916.75
8.0.20.0120.00617.25
8.0.10.0060.00416.69
8.0.00.0050.01116.76
7.4.330.0090.00015.36
7.4.320.0080.00316.31
7.4.300.0070.00416.42
7.4.290.0080.00416.29
7.4.280.0020.01016.41
7.4.270.0080.00316.32
7.4.260.0050.00916.42
7.4.250.0050.00716.37
7.4.240.0080.00416.37
7.4.230.0090.00316.35
7.4.220.0140.00616.42
7.4.210.0080.00816.45
7.4.200.0090.00216.37
7.4.190.0140.00016.38
7.4.180.0140.00016.28
7.4.160.0100.00616.38
7.4.150.0130.00316.84
7.4.140.0100.00817.46
7.4.130.0120.00716.27
7.4.120.0110.00816.37
7.4.110.0060.01016.31
7.4.100.0100.00716.33
7.4.90.0090.00716.32
7.4.80.0120.00417.80
7.4.70.0080.00716.31
7.4.60.0040.01216.39
7.4.50.0070.00816.16
7.4.40.0120.00716.20
7.4.30.0110.00516.24
7.4.20.0130.00016.20
7.4.10.0170.00015.46
7.4.00.0100.00715.36
7.3.330.0060.00414.59
7.3.320.0040.00714.67
7.3.310.0060.00516.03
7.3.300.0080.00316.06
7.3.290.0100.00616.23
7.3.280.0080.00816.14
7.3.270.0120.00316.78
7.3.260.0110.00616.28
7.3.250.0100.00916.22
7.3.240.0090.00716.21
7.3.230.0090.00616.13
7.3.220.0100.00716.05
7.3.210.0080.00816.02
7.3.200.0080.00716.13
7.3.190.0090.00616.18
7.3.180.0160.00116.21
7.3.170.0100.00616.23
7.3.160.0070.00816.04
7.3.150.0090.00516.08
7.3.140.0100.00416.05
7.3.130.0090.00715.36
7.3.120.0050.01215.33
7.3.110.0110.00515.16
7.3.100.0090.00715.47
7.3.90.0120.00215.53
7.3.80.0090.00515.44
7.3.70.0050.00715.18
7.3.60.0070.00415.57
7.3.50.0070.00515.55
7.3.40.0120.00315.53
7.3.30.0110.00415.41
7.3.20.0060.00617.13
7.3.10.0120.00317.22
7.3.00.0080.00717.25
7.2.340.0090.00616.17
7.2.330.0110.00816.32
7.2.320.0090.00716.24
7.2.310.0070.00916.21
7.2.300.0060.00717.96
7.2.290.0120.00416.27
7.2.280.0070.00716.08
7.2.270.0060.00916.22
7.2.260.0090.00815.51
7.2.250.0120.00515.56
7.2.240.0060.00715.58
7.2.230.0080.00615.48
7.2.220.0070.00715.59
7.2.210.0080.00415.59
7.2.200.0070.00815.42
7.2.190.0050.00815.47
7.2.180.0070.00815.52
7.2.170.0100.00315.68
7.2.160.0110.00415.62
7.2.150.0120.00417.40
7.2.140.0110.00417.32
7.2.130.0100.00317.46
7.2.120.0080.00717.53
7.2.110.0080.00717.51
7.2.100.0080.00817.59
7.2.90.0090.00517.61
7.2.80.0110.00417.33
7.2.70.0090.00617.38
7.2.60.0020.01317.64
7.2.50.0120.00317.47
7.2.40.0080.00717.52
7.2.30.0130.00317.55
7.2.20.0070.00717.51
7.2.10.0030.01117.44
7.2.00.0090.00517.31
7.1.330.0120.00116.34
7.1.320.0070.00516.23
7.1.310.0060.00816.33
7.1.300.0060.00916.01
7.1.290.0060.00916.37
7.1.280.0080.00416.37
7.1.270.0090.00716.30
7.1.260.0120.00316.23
7.1.250.0080.00516.32
7.1.240.0090.00516.25
7.1.230.0110.00316.34
7.1.220.0070.00716.23
7.1.210.0100.00216.34
7.1.200.0080.00816.21
7.1.190.0030.01016.34
7.1.180.0070.00416.29
7.1.170.0050.00816.26
7.1.160.0070.00716.31
7.1.150.0100.00416.18
7.1.140.0120.00416.31
7.1.130.0090.00516.32
7.1.120.0040.00916.27
7.1.110.0100.00316.31
7.1.100.0100.00416.29
7.1.90.0050.00916.38
7.1.80.0070.00516.41
7.1.70.0070.00716.15
7.1.60.0260.00821.53
7.1.50.0300.00721.53
7.1.40.0310.00921.31
7.1.30.0220.00821.55
7.1.20.0180.00721.37
7.1.10.0070.00815.39
7.1.00.0130.00615.34
7.0.330.0130.00415.80
7.0.320.0070.00415.92
7.0.310.0080.00316.16
7.0.300.0050.00815.93
7.0.290.0100.00316.00
7.0.280.0070.00616.08
7.0.270.0070.00516.12
7.0.260.0030.00816.04
7.0.250.0090.00516.16
7.0.240.0110.00016.08
7.0.230.0080.00516.14
7.0.220.0070.00716.09
7.0.210.0090.00416.08
7.0.200.0240.00515.26
7.0.190.0270.00615.27
7.0.180.0220.00415.20
7.0.170.0110.00415.09
7.0.160.0230.00115.25
7.0.150.0160.00815.18
7.0.140.0170.00515.13
7.0.130.0070.00815.29
7.0.120.0080.00615.09
7.0.110.0190.00315.15
7.0.100.0080.01015.18
7.0.90.0240.00615.29
7.0.80.0340.00715.26
7.0.70.0210.00715.25
7.0.60.0240.00615.14
7.0.50.0240.00615.13
7.0.40.0130.00414.56
7.0.30.0150.00314.56
7.0.20.0410.00614.63
7.0.10.0240.00514.65
7.0.00.0160.00514.54
5.6.400.0110.00314.63
5.6.390.0080.00415.06
5.6.380.0070.00514.77
5.6.370.0110.00314.92
5.6.360.0120.00215.06
5.6.350.0120.00114.95
5.6.340.0100.00514.96
5.6.330.0090.00415.10
5.6.320.0080.00514.89
5.6.310.0060.00614.84
5.6.300.0100.00214.77
5.6.290.0050.00615.03
5.6.280.0120.00115.08
5.6.270.0080.00615.00
5.6.260.0100.00214.98
5.6.250.0080.00614.93
5.6.240.0040.01015.00
5.6.230.0110.00315.01
5.6.220.0040.01014.94
5.6.210.0120.00314.90
5.6.200.0050.00815.15
5.6.190.0090.00414.99
5.6.180.0050.00614.88
5.6.170.0050.00814.93
5.6.160.0090.00214.79
5.6.150.0070.00514.91
5.6.140.0070.00714.96
5.6.130.0030.01014.76
5.6.120.0060.00714.95
5.6.110.0070.00714.97
5.6.100.0070.00414.97
5.6.90.0080.00314.88
5.6.80.0070.00514.86
5.6.70.0080.00615.04
5.6.60.0040.01114.95
5.6.50.0110.00414.87
5.6.40.0060.00714.85
5.6.30.0130.00214.82
5.6.20.0070.00514.81
5.6.10.0080.00414.89
5.6.00.0060.00714.84

preferences:
53.29 ms | 400 KiB | 5 Q