3v4l.org

run code in 300+ PHP versions simultaneously
<?php /** * The only reliable way of determining if a child exists * in SimpleXMLElement is to use count(). All other methods * do not work reliably in global or local NS. * * NOTE: Error suppresion on @count() is used to suppress * "PHP Warning: count(): Node no longer exists" */ if(!class_exists('SimpleXMLElement')) die("Bonkers"); $xml = new SimpleXMLElement(' <xml xmlns:abstract="urn:my.org:abstract"> <abstract:node>foo</abstract:node> <bar>123</bar> </xml> '); var_dump(gettype($xml->node)); var_dump(isset($xml->node)); var_dump(empty($xml->node)); var_dump(is_null($xml->node)); var_dump(@count($xml->node)); var_dump(@count($xml->node->children())); echo "----------------------\n"; var_dump(gettype($xml->bar)); var_dump(isset($xml->bar)); var_dump(empty($xml->bar)); var_dump(is_null($xml->bar)); var_dump(@count($xml->bar)); var_dump(@count($xml->bar->children())); echo "----------------------\n"; var_dump(gettype($xml->children('abstract',true)->node)); var_dump(isset($xml->children('abstract',true)->node)); var_dump(empty($xml->children('abstract',true)->node)); var_dump(is_null($xml->children('abstract',true)->node)); var_dump(@count($xml->children('abstract',true)->node)); var_dump(@count($xml->children('abstract',true)->node->children())); echo "----------------------\n"; var_dump(gettype($xml->children('abstract',true)->bar)); var_dump(isset($xml->children('abstract',true)->bar)); var_dump(empty($xml->children('abstract',true)->bar)); var_dump(is_null($xml->children('abstract',true)->bar)); var_dump(@count($xml->children('abstract',true)->bar)); var_dump(@count($xml->children('abstract',true)->bar->children()));

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)
8.3.60.0070.01518.81
8.3.50.0120.00921.28
8.3.40.0080.00818.95
8.3.30.0150.00618.88
8.3.20.0040.00420.54
8.3.10.0070.00023.77
8.3.00.0080.00019.92
8.2.180.0050.01016.75
8.2.170.0150.00022.96
8.2.160.0120.00320.76
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0030.00617.88
8.2.110.0030.00621.15
8.2.100.0090.00318.28
8.2.90.0030.00517.99
8.2.80.0030.00618.00
8.2.70.0040.00418.41
8.2.60.0080.00018.28
8.2.50.0030.00518.10
8.2.40.0050.00320.66
8.2.30.0040.00420.02
8.2.20.0040.00417.86
8.2.10.0020.00518.29
8.2.00.0040.00418.39
8.1.280.0090.00925.92
8.1.270.0000.00720.63
8.1.260.0050.00326.35
8.1.250.0080.00028.09
8.1.240.0030.00722.39
8.1.230.0090.00319.27
8.1.220.0060.00317.80
8.1.210.0050.00318.77
8.1.200.0050.00517.73
8.1.190.0000.00817.60
8.1.180.0000.00818.10
8.1.170.0000.00918.86
8.1.160.0040.00423.95
8.1.150.0050.00319.17
8.1.140.0000.00917.72
8.1.130.0030.00317.91
8.1.120.0050.00217.67
8.1.110.0040.00417.57
8.1.100.0030.00517.80
8.1.90.0040.00417.63
8.1.80.0030.00517.62
8.1.70.0040.00417.64
8.1.60.0000.00817.75
8.1.50.0050.00317.66
8.1.40.0000.00817.68
8.1.30.0000.00817.95
8.1.20.0040.00417.88
8.1.10.0000.00817.71
8.1.00.0050.00317.77
8.0.300.0070.00019.98
8.0.290.0040.00417.00
8.0.280.0070.00018.67
8.0.270.0040.00317.43
8.0.260.0000.00617.48
8.0.250.0040.00417.25
8.0.240.0040.00417.32
8.0.230.0090.00017.33
8.0.220.0070.00317.23
8.0.210.0000.00817.28
8.0.200.0030.00317.21
8.0.190.0090.00317.26
8.0.180.0000.00817.29
8.0.170.0080.00017.16
8.0.160.0000.00717.11
8.0.150.0040.00417.09
8.0.140.0000.00817.05
8.0.130.0030.00313.73
8.0.120.0030.00617.09
8.0.110.0030.00517.24
8.0.100.0040.00417.05
8.0.90.0000.00817.16
8.0.80.0000.01717.12
8.0.70.0030.00617.02
8.0.60.0040.00417.15
8.0.50.0040.00417.10
8.0.30.0110.00317.51
8.0.20.0100.01017.51
8.0.10.0050.00317.17
8.0.00.0080.01217.15
7.4.330.0000.00815.08
7.4.320.0000.00716.79
7.4.300.0050.00216.79
7.4.290.0110.00016.70
7.4.280.0000.00916.91
7.4.270.0000.00716.70
7.4.260.0040.00416.78
7.4.250.0040.00416.70
7.4.240.0020.00516.86
7.4.230.0070.00016.86
7.4.220.0110.00716.79
7.4.210.0100.01116.70
7.4.200.0000.00816.83
7.4.160.0160.00717.00
7.4.150.0070.01417.40
7.4.140.0140.00517.86
7.4.130.0170.00416.73
7.4.120.0060.01316.80
7.4.110.0060.01616.79
7.4.100.0100.01417.00
7.4.90.0090.00916.95
7.4.80.0160.00019.39
7.4.70.0110.00516.85
7.4.60.0070.01016.83
7.4.50.0030.00616.75
7.4.40.0100.00616.80
7.4.30.0090.00916.95
7.4.00.0100.00315.20
7.3.330.0030.00313.49
7.3.320.0000.00513.34
7.3.310.0000.00816.37
7.3.300.0030.00316.37
7.3.290.0090.00716.54
7.3.280.0060.01116.56
7.3.270.0090.01217.40
7.3.260.0090.01216.74
7.3.250.0100.00916.53
7.3.240.0120.00616.57
7.3.230.0060.01216.74
7.3.210.0100.00616.84
7.3.200.0130.00616.46
7.3.190.0140.00816.70
7.3.180.0090.00916.41
7.3.170.0100.01316.59
7.3.160.0090.01416.48
7.3.120.0070.01314.65
7.3.110.0070.01114.89
7.3.100.0040.01115.12
7.3.90.0090.00615.20
7.3.80.0040.00414.95
7.3.70.0090.00615.00
7.3.60.0030.00915.06
7.3.50.0100.00614.74
7.3.40.0060.00914.90
7.3.30.0090.00314.98
7.3.20.0080.00616.74
7.3.10.0040.01116.63
7.3.00.0080.00416.75
7.2.330.0160.00817.05
7.2.320.0050.01116.94
7.2.310.0030.01316.79
7.2.300.0090.00917.00
7.2.290.0110.00716.82
7.2.250.0090.01215.21
7.2.240.0070.01015.06
7.2.230.0000.01415.11
7.2.220.0100.00715.11
7.2.210.0070.00715.08
7.2.200.0030.01314.91
7.2.190.0040.01415.21
7.2.180.0070.01315.25
7.2.170.0100.01014.92
7.2.60.0030.01316.78
7.2.00.0080.00819.56
7.1.330.0060.00915.86
7.1.320.0000.01015.71
7.1.310.0070.00716.06
7.1.300.0060.01016.02
7.1.290.0030.01315.96
7.1.280.0030.00715.90
7.1.270.0030.00715.65
7.1.260.0090.00615.79
7.1.200.0040.00815.86
7.1.100.0540.01316.33
7.1.70.0100.00317.14
7.1.60.0070.00717.29
7.1.50.0080.01616.95
7.1.40.0000.02216.50
7.1.30.0090.00616.66
7.1.20.0080.01616.79
7.1.10.0060.00816.67
7.1.00.0050.00316.71
7.0.200.0110.00016.70
7.0.190.0040.00816.83
7.0.180.0070.00516.29
7.0.170.0060.00616.29
7.0.160.0130.00016.43
7.0.150.0140.00516.27
7.0.140.0080.00816.41
7.0.130.0120.00016.69
7.0.120.0080.00416.70
7.0.110.0060.00616.55
7.0.100.0060.00616.40
7.0.90.0030.00916.49
7.0.80.0080.00616.60
7.0.70.0030.00916.41
7.0.60.0070.00416.22
7.0.50.0090.00316.45
7.0.40.0090.00314.79
7.0.30.0000.01314.79
7.0.20.0110.00314.79
7.0.10.0040.00814.79
7.0.00.0030.00714.79
5.6.300.0110.05120.79
5.6.290.0100.03820.88
5.6.280.0160.03921.09
5.6.270.0060.05121.14
5.6.260.0070.04220.87
5.6.250.0120.03820.98
5.6.240.0060.04520.99
5.6.230.0120.07521.25
5.6.220.0180.03221.06
5.6.210.0100.03820.66
5.6.200.0070.04620.95
5.6.190.0070.05020.80
5.6.180.0030.04620.94
5.6.170.0000.04720.80
5.6.160.0000.05620.94
5.6.150.0000.04821.05
5.6.140.0060.06520.92
5.6.130.0030.04821.05
5.6.120.0040.04620.80
5.6.110.0090.04621.08
5.6.100.0150.03721.06
5.6.90.0090.03820.94
5.6.80.0000.04420.43
5.6.70.0120.04020.45
5.6.60.0130.07720.41
5.6.50.0040.04920.21
5.6.40.0030.04720.41
5.6.30.0030.04120.39
5.6.20.0090.05420.18
5.6.10.0070.04620.45
5.6.00.0090.04020.32
5.5.380.0070.04117.61
5.5.370.0000.05217.65
5.5.360.0030.04517.61
5.5.350.0130.04717.79
5.5.340.0090.04418.15
5.5.330.0030.05117.97
5.5.320.0100.03818.19
5.5.310.0040.04018.16
5.5.300.0070.03618.13
5.5.290.0030.04618.14
5.5.280.0030.06517.93
5.5.270.0000.05918.17
5.5.260.0060.04717.83
5.5.250.0040.04017.97
5.5.240.0000.04817.39
5.5.230.0030.03817.31
5.5.220.0030.06317.48
5.5.210.0070.03817.31
5.5.200.0060.03917.42
5.5.190.0070.03717.36
5.5.180.0070.03617.46
5.5.160.0040.04217.51
5.5.150.0000.04517.22
5.5.140.0000.04117.44
5.5.130.0000.04317.45
5.5.120.0000.04117.48
5.5.110.0030.04017.45
5.5.100.0000.04217.32
5.5.90.0000.05217.44
5.5.80.0060.03917.36
5.5.70.0060.03817.09
5.5.60.0000.04417.38
5.5.50.0120.04217.34
5.5.40.0000.04317.36
5.5.30.0000.04317.43
5.5.20.0070.04717.42
5.5.10.0030.04017.34
5.5.00.0000.05117.36
5.4.450.0070.03819.54
5.4.440.0030.04519.46
5.4.430.0140.04719.41
5.4.420.0030.04219.28
5.4.410.0030.04019.28
5.4.400.0030.04319.05
5.4.390.0170.06318.99
5.4.380.0000.05219.13
5.4.370.0030.04419.22
5.4.360.0000.04519.14
5.4.350.0070.03419.12
5.4.340.0060.04019.12
5.4.320.0070.03719.27
5.4.310.0000.04018.96
5.4.300.0070.03419.26
5.4.290.0030.03718.96
5.4.280.0000.04219.08
5.4.270.0000.04319.23
5.4.260.0060.03518.98
5.4.250.0040.04719.11
5.4.240.0030.05019.10
5.4.230.0070.04319.13
5.4.220.0030.04219.20
5.4.210.0040.03619.26
5.4.200.0030.03619.25
5.4.190.0000.04419.11
5.4.180.0000.05118.94
5.4.170.0000.04119.00
5.4.160.0030.04319.10
5.4.150.0000.06819.09
5.4.140.0150.03916.55
5.4.130.0040.04716.63
5.4.120.0030.06516.63
5.4.110.0040.03616.74
5.4.100.0030.03416.70
5.4.90.0030.04116.70
5.4.80.0070.03416.67
5.4.70.0000.04116.75
5.4.60.0030.03416.45
5.4.50.0000.03716.71
5.4.40.0030.03516.72
5.4.30.0060.03416.74
5.4.20.0030.06016.45
5.4.10.0120.03016.66
5.4.00.0070.03016.17

preferences:
54.13 ms | 401 KiB | 5 Q