3v4l.org

run code in 300+ PHP versions simultaneously
<?php $sxe = new SimpleXMLElement('<foo></foo>'); $sxe->addChild('bar'); $arrResults['empty node'] = $sxe->asXML(); $sxe = new SimpleXMLElement('<foo></foo>'); $sxe->addChild('bar', ''); $arrResults['empty string'] = $sxe->asXML(); $sxe = new SimpleXMLElement('<foo></foo>'); $sxe->addChild('bar'); $sxe->bar = ''; $arrResults['overwritten empty string'] = $sxe->asXML(); foreach($arrResults as $key => $strResult){ echo $key . ': ' . $strResult; }

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)
8.3.60.0070.01118.68
8.3.50.0070.00718.34
8.3.40.0090.00619.10
8.3.30.0070.00718.92
8.3.20.0040.00419.59
8.3.10.0000.00823.61
8.3.00.0080.00023.90
8.2.180.0100.01018.50
8.2.170.0140.00022.96
8.2.160.0160.00320.63
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0050.00326.16
8.2.120.0050.00319.47
8.2.110.0050.00521.25
8.2.100.0040.00818.16
8.2.90.0040.00418.41
8.2.80.0040.00418.00
8.2.70.0040.00418.29
8.2.60.0080.00018.18
8.2.50.0050.00318.10
8.2.40.0050.00319.77
8.2.30.0040.00420.78
8.2.20.0000.00818.32
8.2.10.0060.00318.30
8.2.00.0030.00319.62
8.1.280.0040.01225.92
8.1.270.0040.00422.39
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0030.00624.22
8.1.230.0090.00321.20
8.1.220.0040.00417.91
8.1.210.0050.00319.23
8.1.200.0030.00617.47
8.1.190.0040.00417.37
8.1.180.0050.00318.10
8.1.170.0080.00019.13
8.1.160.0000.00719.16
8.1.150.0000.00719.18
8.1.140.0000.00819.30
8.1.130.0030.00517.68
8.1.120.0040.00417.70
8.1.110.0040.00417.57
8.1.100.0040.00417.73
8.1.90.0000.00717.74
8.1.80.0030.00617.55
8.1.70.0000.00717.59
8.1.60.0000.00917.80
8.1.50.0000.00917.70
8.1.40.0050.00317.70
8.1.30.0040.00417.90
8.1.20.0070.00017.89
8.1.10.0060.00317.82
8.1.00.0000.00817.72
8.0.300.0040.00420.28
8.0.290.0030.00516.88
8.0.280.0030.00318.77
8.0.270.0070.00017.10
8.0.260.0030.00317.08
8.0.250.0000.00717.21
8.0.240.0000.00817.23
8.0.230.0050.00217.25
8.0.220.0000.00717.13
8.0.210.0000.00717.12
8.0.200.0070.00017.07
8.0.190.0060.00317.20
8.0.180.0040.00417.13
8.0.170.0040.00417.07
8.0.160.0070.00017.18
8.0.150.0000.00717.05
8.0.140.0000.00717.06
8.0.130.0040.00413.52
8.0.120.0050.00317.13
8.0.110.0000.00817.02
8.0.100.0040.00417.20
8.0.90.0040.00417.16
8.0.80.0050.01417.18
8.0.70.0040.00417.04
8.0.60.0040.00416.87
8.0.50.0000.00716.94
8.0.30.0150.00617.27
8.0.20.0090.00917.40
8.0.10.0000.00717.14
8.0.00.0100.00917.15
7.4.330.0050.00015.55
7.4.320.0030.00316.65
7.4.300.0000.00616.75
7.4.290.0030.00316.89
7.4.280.0050.00216.73
7.4.270.0000.00716.81
7.4.260.0070.00016.89
7.4.250.0000.00816.68
7.4.240.0070.00016.89
7.4.230.0000.00716.94
7.4.220.0030.00316.87
7.4.210.0070.00916.90
7.4.200.0000.00716.70
7.4.160.0090.00716.68
7.4.140.0070.01117.86
7.4.130.0110.00816.63
7.4.120.0100.00916.81
7.4.110.0080.00816.80
7.4.100.0070.01416.89
7.4.90.0090.00916.73
7.4.80.0000.01619.39
7.4.70.0090.00616.76
7.4.60.0090.01216.72
7.4.50.0040.01216.98
7.4.40.0080.01216.98
7.4.00.0110.00615.19
7.3.330.0000.00513.31
7.3.320.0030.00313.38
7.3.310.0020.00516.54
7.3.300.0070.00016.43
7.3.290.0000.00716.55
7.3.280.0080.00616.57
7.3.260.0120.00616.73
7.3.240.0130.00516.74
7.3.230.0100.00716.77
7.3.210.0120.00916.55
7.3.200.0090.00916.84
7.3.190.0070.01016.69
7.3.180.0090.01216.90
7.3.170.0110.01416.58
7.3.160.0110.00716.54
7.3.10.0030.01016.56
7.3.00.0130.00716.75
7.2.330.0100.01116.86
7.2.320.0070.01017.02
7.2.310.0100.01316.91
7.2.300.0030.01316.85
7.2.290.0000.01616.98
7.2.130.0110.00416.89
7.2.120.0100.00317.05
7.2.110.0100.00317.10
7.2.100.0030.01016.99
7.2.90.0080.00615.98
7.2.80.0470.01015.60
7.2.70.2220.00415.61
7.2.60.1460.00815.72
7.2.50.0550.00815.62
7.2.40.0920.00915.61
7.2.30.1920.00515.56
7.2.20.1460.01115.52
7.2.10.1870.01115.65
7.2.00.1310.01015.45
7.1.250.0110.00015.78
7.1.210.0910.01013.82
7.1.200.0460.01314.86
7.1.190.0960.00513.92
7.1.180.3000.00713.87
7.1.170.2210.00813.71
7.1.160.1260.00813.77
7.1.150.0780.00513.84
7.1.140.2890.01013.96
7.1.130.2730.00513.83
7.1.120.0650.00713.74
7.1.110.2370.01014.05
7.1.100.0660.01013.83
7.1.90.2290.00713.84
7.1.80.1470.00913.78
7.1.70.1030.00613.81
7.1.60.1040.01231.66
7.1.50.1250.01131.79
7.1.40.2280.01531.83
7.1.30.1730.00531.64
7.1.20.1520.01031.73
7.1.10.1150.00513.85
7.1.00.1390.01113.85

preferences:
32.16 ms | 400 KiB | 5 Q