3v4l.org

run code in 300+ PHP versions simultaneously
<?php $xml = new SimpleXMLElement('<root><elem>Text</elem></root>'); echo 'elem2 is: ' . ($xml->elem2 ?? 'backup string'); echo 'elem2 is: ' . (isset($xml->elem2) ? $xml->elem2 : 'backup string');

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)
8.3.60.0040.01116.63
8.3.50.0170.00222.05
8.3.40.0110.00418.88
8.3.30.0130.00318.91
8.3.20.0050.00319.27
8.3.10.0080.00021.90
8.3.00.0070.00022.63
8.2.180.0120.00318.66
8.2.170.0110.00722.96
8.2.160.0110.00420.60
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0080.00020.96
8.2.110.0100.00021.17
8.2.100.0040.00817.97
8.2.90.0000.00819.65
8.2.80.0080.00017.97
8.2.70.0030.00617.75
8.2.60.0050.00317.75
8.2.50.0050.00318.16
8.2.40.0040.00419.48
8.2.30.0000.00719.42
8.2.20.0040.00417.77
8.2.10.0000.00718.05
8.2.00.0100.00018.16
8.1.280.0140.00025.92
8.1.270.0050.00322.30
8.1.260.0040.00426.35
8.1.250.0150.00428.09
8.1.240.0060.00322.59
8.1.230.0110.00021.04
8.1.220.0060.00317.91
8.1.210.0030.00719.16
8.1.200.0030.00617.47
8.1.190.0050.00317.47
8.1.180.0030.00518.10
8.1.170.0000.00817.62
8.1.160.0000.00722.31
8.1.150.0040.00418.92
8.1.140.0000.00722.32
8.1.130.0070.00017.90
8.1.120.0000.00717.49
8.1.110.0040.00417.50
8.1.100.0000.00717.57
8.1.90.0050.00317.56
8.1.80.0030.00517.48
8.1.70.0050.00517.49
8.1.60.0050.00217.79
8.1.50.0030.00517.61
8.1.40.0080.00017.58
8.1.30.0100.00017.91
8.1.20.0000.00817.85
8.1.10.0000.00717.72
8.1.00.0040.00417.70
8.0.300.0030.00620.13
8.0.290.0000.00717.00
8.0.280.0030.00518.45
8.0.270.0030.00317.46
8.0.260.0040.00416.99
8.0.250.0000.00717.04
8.0.240.0030.00317.09
8.0.230.0000.00817.17
8.0.220.0000.00717.04
8.0.210.0070.00016.99
8.0.200.0060.00017.05
8.0.190.0000.00717.12
8.0.180.0000.00717.09
8.0.170.0080.00016.93
8.0.160.0000.00717.24
8.0.150.0030.00517.12
8.0.140.0040.00416.98
8.0.130.0060.00013.48
8.0.120.0000.00917.06
8.0.110.0050.00316.91
8.0.100.0040.00416.86
8.0.90.0000.00716.96
8.0.80.0090.00917.05
8.0.70.0000.00817.06
8.0.60.0000.00716.91
8.0.50.0000.00816.88
8.0.30.0090.00917.26
8.0.20.0100.01017.46
8.0.10.0040.00417.04
8.0.00.0060.01216.86
7.4.330.0000.00515.35
7.4.320.0030.00316.72
7.4.300.0030.00316.66
7.4.290.0000.00816.81
7.4.280.0060.00316.63
7.4.270.0030.00316.82
7.4.260.0000.00716.79
7.4.250.0040.00416.75
7.4.240.0040.00416.82
7.4.230.0070.00016.82
7.4.220.0160.01016.78
7.4.210.0090.01016.76
7.4.200.0000.00716.65
7.4.160.0120.00316.73
7.4.150.0140.00417.40
7.4.140.0110.01017.86
7.4.130.0110.00616.62
7.4.120.0100.00716.64
7.4.110.0090.01516.82
7.4.100.0130.00316.52
7.4.90.0130.01316.62
7.4.80.0200.00319.39
7.4.70.0170.00016.64
7.4.60.0050.01816.72
7.4.50.0040.00716.59
7.4.40.0070.01016.58
7.4.30.0060.01216.75
7.4.00.0100.00714.75
7.3.330.0020.00213.33
7.3.320.0030.00313.25
7.3.310.0040.00416.31
7.3.300.0040.00416.38
7.3.290.0000.00716.39
7.3.280.0100.00816.37
7.3.270.0200.00317.40
7.3.260.0110.00716.47
7.3.250.0100.01116.51
7.3.240.0050.01316.56
7.3.230.0090.01116.71
7.3.210.0190.00016.61
7.3.200.0060.01216.56
7.3.190.0090.00616.60
7.3.180.0160.00616.51
7.3.170.0080.00816.78
7.3.160.0090.00916.42
7.2.330.0030.01416.63
7.2.320.0100.00716.85
7.2.310.0100.00816.83
7.2.300.0140.00316.65
7.2.290.0090.00916.69
7.2.60.0100.00716.87
7.2.00.0080.00819.66
7.1.200.0280.00515.26
7.1.70.0030.00517.14
7.1.60.0260.00315.21
7.1.50.0070.01416.93
7.1.00.0030.07722.44
7.0.200.0030.01416.82
7.0.100.0130.07320.04
7.0.90.0300.07720.02
7.0.80.0230.04320.00
7.0.70.0200.04719.93
7.0.60.0170.03720.07
7.0.50.0130.04320.49
7.0.40.0000.04720.16
7.0.30.0070.06320.05
7.0.20.0070.05720.05
7.0.10.0030.06320.17
7.0.00.0070.07720.13
5.6.250.0130.07720.75
5.6.240.0000.04720.57
5.6.230.0170.04020.72
5.6.220.0070.03720.62
5.6.210.0030.04020.67
5.6.200.0030.04320.96
5.6.190.0100.03720.95
5.6.180.0030.04721.08
5.6.170.0030.04321.11
5.6.160.0070.06721.00
5.6.150.0000.06721.14
5.6.140.0030.04021.06
5.6.130.0070.08321.08
5.6.120.0070.04720.96
5.6.110.0070.05721.10
5.6.100.0030.08321.04
5.6.90.0070.04020.94
5.6.80.0000.06320.42
5.6.70.0100.04020.34
5.6.60.0070.03720.39
5.6.50.0030.04020.43
5.6.40.0030.03720.29
5.6.30.0030.05020.38
5.6.20.0070.04320.46
5.6.10.0000.05020.30
5.6.00.0130.03020.48

preferences:
61.17 ms | 401 KiB | 5 Q