3v4l.org

run code in 300+ PHP versions simultaneously
<?php $dom = new DOMDocument(); $dom->loadXml('<foo xmlns="urn:foo"/>'); var_dump($dom->documentElement->lookupNamespaceURI(NULL)); var_dump($dom->documentElement->lookupNamespaceURI(''));

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)
8.3.70.0070.00716.61
8.3.60.0100.00718.43
8.3.50.0160.00222.99
8.3.40.0110.00418.70
8.3.30.0090.00919.22
8.3.20.0040.00420.41
8.3.10.0040.00422.16
8.3.00.0070.00317.63
8.2.180.0090.00916.75
8.2.170.0000.01622.96
8.2.160.0060.00820.30
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0120.00626.16
8.2.120.0040.00421.30
8.2.110.0060.00322.20
8.2.100.0030.00719.41
8.2.90.0040.00419.30
8.2.80.0050.00317.97
8.2.70.0030.00517.63
8.2.60.0080.00018.16
8.2.50.0050.00318.07
8.2.40.0070.00018.22
8.2.30.0070.00018.28
8.2.20.0080.00017.93
8.2.10.0070.00018.09
8.2.00.0000.00817.90
8.1.280.0070.01025.92
8.1.270.0030.00524.09
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0030.00623.93
8.1.230.0060.00619.12
8.1.220.0060.00317.80
8.1.210.0040.00418.77
8.1.200.0030.00617.35
8.1.190.0040.00417.35
8.1.180.0040.00418.10
8.1.170.0050.00318.77
8.1.160.0050.00222.06
8.1.150.0040.00419.02
8.1.140.0040.00417.61
8.1.130.0030.00318.01
8.1.120.0000.00717.69
8.1.110.0000.00817.46
8.1.100.0040.00417.59
8.1.90.0000.00717.66
8.1.80.0050.00217.66
8.1.70.0030.00317.45
8.1.60.0040.00417.79
8.1.50.0050.00317.70
8.1.40.0000.00817.53
8.1.30.0030.00517.78
8.1.20.0070.00017.76
8.1.10.0030.00617.75
8.1.00.0040.00417.66
8.0.300.0050.00218.77
8.0.290.0000.00716.75
8.0.280.0070.00018.53
8.0.270.0030.00317.40
8.0.260.0030.00317.39
8.0.250.0070.00017.02
8.0.240.0000.00817.11
8.0.230.0000.00817.08
8.0.220.0040.00416.89
8.0.210.0040.00417.06
8.0.200.0030.00716.96
8.0.190.0030.00517.12
8.0.180.0040.00416.97
8.0.170.0030.00516.91
8.0.160.0030.00617.03
8.0.150.0000.00716.96
8.0.140.0050.00217.02
8.0.130.0030.00313.37
8.0.120.0070.00016.87
8.0.110.0080.00017.08
8.0.100.0070.00017.09
8.0.90.0040.00416.89
8.0.80.0100.01316.92
8.0.70.0000.00716.96
8.0.60.0040.00416.96
8.0.50.0040.00416.92
8.0.30.0140.00317.18
8.0.20.0140.00817.46
8.0.10.0000.00717.10
8.0.00.0110.01317.01
7.4.330.0050.00015.23
7.4.320.0030.00316.61
7.4.300.0030.00316.58
7.4.290.0080.00016.77
7.4.280.0000.00716.74
7.4.270.0030.00316.66
7.4.260.0000.00716.72
7.4.250.0070.00016.55
7.4.240.0020.00616.66
7.4.230.0000.00716.62
7.4.220.0140.00316.75
7.4.210.0070.01116.63
7.4.200.0000.00716.61
7.4.160.0150.00616.80
7.4.150.0040.01417.40
7.4.140.0100.00917.86
7.4.130.0150.00316.64
7.4.120.0030.01316.72
7.4.110.0080.01116.61
7.4.100.0090.00916.59
7.4.90.0090.00916.64
7.4.80.0130.00619.39
7.4.70.0100.01316.71
7.4.60.0060.01116.46
7.4.50.0000.00416.48
7.4.40.0090.01316.77
7.4.30.0100.00716.79
7.4.00.0060.00915.26
7.3.330.0030.00313.18
7.3.320.0030.00313.16
7.3.310.0000.00916.18
7.3.300.0000.00616.35
7.3.290.0070.00716.36
7.3.280.0100.00916.36
7.3.270.0070.01017.40
7.3.260.0130.00316.41
7.3.240.0120.00616.56
7.3.230.0100.01016.58
7.3.210.0140.01116.66
7.3.200.0060.01319.39
7.3.190.0100.00716.58
7.3.180.0080.00816.46
7.3.170.0060.01316.36
7.3.160.0110.00416.46
7.2.330.0130.00316.78
7.2.320.0070.01716.63
7.2.310.0120.00416.73
7.2.300.0130.01016.55
7.2.290.0060.01516.85
7.1.100.0040.00717.87
7.1.70.0050.00516.91
7.1.60.0030.02119.40
7.1.50.0090.00916.78
7.1.00.0100.07022.53
7.0.200.0040.00416.83
7.0.140.0030.07322.01
7.0.60.0070.08319.97
7.0.50.0000.07317.99
7.0.40.0070.08320.27
7.0.30.0230.05720.11
7.0.20.0300.06720.10
7.0.10.0130.08320.41
7.0.00.0100.08020.39
5.6.280.0030.07321.16
5.6.210.0070.05320.86
5.6.200.0070.04318.29
5.6.190.0130.08320.56
5.6.180.0270.08320.46
5.6.170.0300.06020.66
5.6.160.0030.08320.55
5.6.150.0100.08018.25
5.6.140.0030.04018.28
5.6.130.0030.06018.22
5.6.120.0170.07020.99
5.6.110.0070.08721.01
5.6.100.0070.08321.18
5.6.90.0100.05321.20
5.6.80.0070.08020.41
5.5.350.0300.07020.50
5.5.340.0070.03717.98
5.5.330.0170.05020.60
5.5.320.0130.06020.30
5.5.310.0200.04020.23
5.5.300.0130.07318.05
5.5.290.0100.05018.11
5.5.280.0130.08320.85
5.5.270.0030.08720.83
5.5.260.0130.07720.97
5.5.250.0030.04020.85
5.5.240.0070.07020.30
5.4.450.0800.06719.32
5.4.440.0570.06019.52
5.4.430.0470.06019.64
5.4.420.0600.06019.51
5.4.410.0430.04719.43
5.4.400.0400.05018.90
5.4.390.0470.04318.76
5.4.380.0100.06018.75
5.4.370.0070.05318.75
5.4.360.0070.05318.76
5.4.350.0140.04812.11
5.4.340.0110.04512.11
5.4.320.0100.03712.60
5.4.310.0060.04212.60
5.4.300.0110.04312.60
5.4.290.0050.04212.60
5.4.280.0070.03412.50
5.4.270.0070.03512.49
5.4.260.0050.03912.49
5.4.250.0060.04112.50
5.4.240.0070.04012.50
5.4.230.0060.03912.49
5.4.220.0050.03712.48
5.4.210.0020.04112.48
5.4.200.0070.04112.48
5.4.190.0060.04912.48
5.4.180.0060.03612.48
5.4.170.0110.03512.50
5.4.160.0080.03812.49
5.4.150.0070.03812.49
5.4.140.0100.03612.17
5.4.130.0070.03612.16
5.4.120.0090.04212.12
5.4.110.0110.04112.11
5.4.100.0060.04512.11
5.4.90.0070.03812.12
5.4.80.0140.04412.11
5.4.70.0090.04212.11
5.4.60.0050.04512.11
5.4.50.0060.04112.11
5.4.40.0070.04112.09
5.4.30.0060.04012.09
5.4.20.0080.04312.10
5.4.10.0110.03012.10
5.4.00.0060.04211.59
5.3.290.0060.03812.86
5.3.280.0070.05212.79
5.3.270.0080.04312.80
5.3.260.0120.05412.80
5.3.250.0060.04912.80
5.3.240.0080.03612.80
5.3.230.0090.03812.80
5.3.220.0090.03712.77
5.3.210.0080.03812.77
5.3.200.0100.03812.76
5.3.190.0050.03912.77
5.3.180.0070.03712.77
5.3.170.0060.04212.77
5.3.160.0100.04612.76
5.3.150.0090.04612.77
5.3.140.0100.04012.75
5.3.130.0090.05412.75
5.3.120.0060.04412.75
5.3.110.0080.03812.75
5.3.100.0070.04012.23
5.3.90.0070.04112.22
5.3.80.0080.03712.21
5.3.70.0100.03412.21
5.3.60.0110.03312.19
5.3.50.0030.04312.14
5.3.40.0050.03812.14
5.3.30.0060.03812.10
5.3.20.0070.04011.88
5.3.10.0040.03711.85
5.3.00.0050.03811.83
5.2.170.0060.0309.33
5.2.160.0050.0309.33
5.2.150.0060.0309.33
5.2.140.0060.0319.32
5.2.130.0070.0299.29
5.2.120.0100.0249.29
5.2.110.0050.0309.30
5.2.100.0060.0279.29
5.2.90.0060.0289.29
5.2.80.0070.0289.29
5.2.70.0040.0319.29
5.2.60.0050.0299.24
5.2.50.0030.0319.21
5.2.40.0030.0309.19
5.2.30.0050.0369.16
5.2.20.0030.0319.16
5.2.10.0080.0259.07
5.2.00.0050.0288.93
5.1.60.0040.0358.21
5.1.50.0030.0268.21
5.1.40.0030.0288.19
5.1.30.0060.0278.54
5.1.20.0030.0288.55
5.1.10.0070.0278.29
5.1.00.0020.0288.29
5.0.50.0010.0236.76
5.0.40.0020.0216.63
5.0.30.0040.0306.44
5.0.20.0040.0186.41
5.0.10.0050.0186.39
5.0.00.0020.0316.38
4.4.90.0020.0164.78
4.4.80.0030.0164.75
4.4.70.0020.0164.75
4.4.60.0030.0154.75
4.4.50.0020.0164.77
4.4.40.0040.0244.71
4.4.30.0020.0164.76
4.4.20.0030.0154.84
4.4.10.0020.0164.85
4.4.00.0040.0244.76
4.3.110.0010.0174.67
4.3.100.0040.0144.66
4.3.90.0020.0204.63
4.3.80.0040.0234.58
4.3.70.0020.0154.63
4.3.60.0010.0164.63
4.3.50.0020.0164.63
4.3.40.0050.0224.54
4.3.30.0020.0163.28
4.3.20.0020.0163.26
4.3.10.0040.0143.22
4.3.00.0170.0207.11

preferences:
45.52 ms | 401 KiB | 5 Q