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. */ if(!class_exists('SimpleXMLElement')) die("Bonkers"); $xml = new SimpleXMLElement('<xml xmlns:abstract="urn:my.org:abstract"><abstract:node>foo</abstract:node><bar>123</bar></xml>'); var_dump($xml->node); 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)
8.3.60.0110.00417.00
8.3.50.0110.00718.31
8.3.40.0060.01019.04
8.3.30.0030.01019.34
8.3.20.0070.00020.46
8.3.10.0040.00423.78
8.3.00.0070.00321.04
8.2.180.0100.00717.00
8.2.170.0140.00722.96
8.2.160.0080.01220.45
8.2.150.0030.00524.18
8.2.140.0060.00324.66
8.2.130.0110.00726.16
8.2.120.0030.00522.33
8.2.110.0090.00021.18
8.2.100.0090.00317.84
8.2.90.0030.00519.34
8.2.80.0040.00417.97
8.2.70.0080.00017.88
8.2.60.0040.00418.05
8.2.50.0040.00418.07
8.2.40.0000.00818.41
8.2.30.0000.00718.21
8.2.20.0050.00317.91
8.2.10.0000.00818.13
8.2.00.0050.00317.96
8.1.270.0040.00422.31
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00321.49
8.1.230.0040.00717.77
8.1.220.0040.00417.80
8.1.210.0050.00318.77
8.1.200.0000.00917.60
8.1.190.0040.00417.61
8.1.180.0030.00618.10
8.1.170.0000.00918.93
8.1.160.0040.00422.23
8.1.150.0000.00818.79
8.1.140.0030.00617.60
8.1.130.0030.00317.94
8.1.120.0030.00517.79
8.1.110.0040.00417.62
8.1.100.0040.00717.70
8.1.90.0040.00417.70
8.1.80.0040.00417.78
8.1.70.0000.00717.62
8.1.60.0060.00317.91
8.1.50.0040.00417.83
8.1.40.0000.00817.74
8.1.30.0030.00517.90
8.1.20.0080.00017.83
8.1.10.0000.00817.89
8.1.00.0070.00317.62
8.0.300.0000.00718.77
8.0.290.0040.00417.00
8.0.280.0040.00418.66
8.0.270.0070.00017.46
8.0.260.0030.00317.15
8.0.250.0030.00317.22
8.0.240.0000.00717.12
8.0.230.0000.00717.22
8.0.220.0030.00317.14
8.0.210.0030.00617.06
8.0.200.0030.00317.27
8.0.190.0040.00417.31
8.0.180.0030.00717.11
8.0.170.0030.00517.12
8.0.160.0040.00417.11
8.0.150.0070.00016.98
8.0.140.0040.00417.14
8.0.130.0060.00013.61
8.0.120.0040.00417.14
8.0.110.0000.00817.04
8.0.100.0000.00717.13
8.0.90.0000.00717.18
8.0.80.0030.01317.22
8.0.70.0020.00517.09
8.0.60.0000.00817.25
8.0.50.0040.00417.17
8.0.30.0040.01617.46
8.0.20.0070.01117.43
8.0.10.0030.00517.40
8.0.00.0140.01117.21
7.4.330.0030.00315.17
7.4.320.0080.00016.65
7.4.300.0000.00716.87
7.4.290.0050.00316.85
7.4.280.0000.00816.89
7.4.270.0030.00416.84
7.4.260.0040.00416.74
7.4.250.0050.00216.83
7.4.240.0020.00516.79
7.4.230.0000.00816.78
7.4.220.0030.01316.87
7.4.210.0090.01116.89
7.4.200.0050.00316.58
7.4.190.0040.00416.73
7.4.160.0100.00716.78
7.4.150.0070.01117.40
7.4.140.0100.01017.86
7.4.130.0070.00916.75
7.4.120.0120.00716.85
7.4.110.0140.00316.78
7.4.100.0040.01516.82
7.4.90.0150.00316.75
7.4.80.0070.01719.39
7.4.70.0060.01016.96
7.4.60.0130.00316.82
7.4.50.0000.00516.83
7.4.40.0110.00422.77
7.4.30.0090.00916.96
7.4.00.0090.00615.20
7.3.330.0050.00013.43
7.3.320.0000.00513.43
7.3.310.0060.00316.60
7.3.300.0040.00416.43
7.3.290.0060.00916.50
7.3.280.0110.01016.54
7.3.270.0100.01317.40
7.3.260.0090.00916.57
7.3.250.0120.00916.78
7.3.240.0120.01216.54
7.3.230.0090.01416.53
7.3.210.0130.00316.75
7.3.200.0090.01619.39
7.3.190.0030.01916.69
7.3.180.0090.00616.88
7.3.170.0100.00916.61
7.3.160.0080.00816.56
7.3.120.0000.01115.00
7.2.330.0160.00316.73
7.2.320.0090.00916.92
7.2.310.0120.00616.78
7.2.300.0100.00716.96
7.2.290.0130.00316.91
7.2.60.0000.01317.10
7.2.00.0060.00619.15
7.1.200.0040.01115.99
7.1.100.0070.00417.98
7.1.70.0030.00617.24
7.1.60.0130.01019.29
7.1.50.0030.02016.78
7.1.00.0000.08022.56
7.0.200.0000.01016.57
7.0.140.0030.07322.04
7.0.100.0170.07720.10
7.0.90.0070.05020.09
7.0.80.0430.07020.09
7.0.70.0170.04020.04
7.0.60.0270.08020.23
7.0.50.0170.06020.46
7.0.40.0070.08720.18
7.0.30.0070.07320.09
7.0.20.0070.08020.03
7.0.10.0070.08020.21
7.0.00.0100.05720.07
5.6.280.0030.07321.07
5.6.250.0070.05720.90
5.6.240.0130.03720.63
5.6.230.0070.07720.68
5.6.220.0030.05320.55
5.6.210.0000.07720.95
5.6.200.0130.06321.07
5.6.190.0100.06321.10
5.6.180.0100.05321.16
5.6.170.0070.07021.13
5.6.160.0130.07321.17
5.6.150.0230.06721.25
5.6.140.0030.06321.07
5.6.130.0070.08720.99
5.6.120.0130.07721.13
5.6.110.0070.08321.13
5.6.100.0070.07321.16
5.6.90.0130.08021.11
5.6.80.0100.07320.67
5.6.70.0000.06020.52
5.6.60.0070.05020.41
5.6.50.0070.09020.40
5.6.40.0000.06320.62
5.6.30.0100.04320.53
5.6.20.0030.07320.43
5.6.10.0100.06720.51
5.6.00.0130.06720.50
5.5.380.0030.06720.62
5.5.370.0130.07720.60
5.5.360.0070.06720.61
5.5.350.0100.07020.60
5.5.340.0100.05320.82
5.5.330.0000.06720.86
5.5.320.0200.06720.89
5.5.310.0070.08321.00
5.5.300.0070.09020.76
5.5.290.0100.07721.02
5.5.280.0100.07020.85
5.5.270.0130.06720.89
5.5.260.0170.06720.75
5.5.250.0070.08320.82
5.5.240.0030.05020.28
5.5.230.0070.08320.25
5.5.220.0030.08320.41
5.5.210.0170.07720.33
5.5.200.0030.05720.36
5.5.190.0100.05720.25
5.5.180.0130.07320.22
5.5.160.0100.03720.26
5.5.150.0100.06720.26
5.5.140.0100.04320.43
5.5.130.0070.04720.21
5.5.120.0000.08320.29
5.5.110.0130.07720.16
5.5.100.0100.04720.28
5.5.90.0070.07720.11
5.5.80.0100.07320.10
5.5.70.0100.07020.14
5.5.60.0130.05720.23
5.5.50.0100.06720.26
5.5.40.0070.05320.25
5.5.30.0030.08020.11
5.5.20.0130.04020.00
5.5.10.0070.07020.12
5.5.00.0100.06320.10
5.4.450.0030.06019.69
5.4.440.0070.04719.58
5.4.430.0170.07719.30
5.4.420.0130.06719.48
5.4.410.0100.07319.56
5.4.400.0130.07319.22
5.4.390.0100.07019.21
5.4.380.0000.08319.18
5.4.370.0000.05019.16
5.4.360.0100.07319.21
5.4.350.0030.04319.21
5.4.340.0100.06319.01
5.4.320.0130.06019.19
5.4.310.0030.06719.03
5.4.300.0130.06719.18
5.4.290.0130.06319.18
5.4.280.0070.05319.19
5.4.270.0070.04719.19
5.4.260.0070.07019.23
5.4.250.0000.05019.16
5.4.240.0230.06319.36
5.4.230.0070.07719.15
5.4.220.0000.08319.19
5.4.210.0100.07719.20
5.4.200.0100.05019.14
5.4.190.0100.07319.04
5.4.180.0030.08019.20
5.4.170.0130.07019.20
5.4.160.0000.08319.16
5.4.150.0030.07719.09
5.4.140.0100.04316.56
5.4.130.0000.08016.51
5.4.120.0070.07316.52
5.4.110.0070.06716.51
5.4.100.0100.05316.63
5.4.90.0030.05316.46
5.4.80.0100.03716.50
5.4.70.0000.07716.41
5.4.60.0230.05316.36
5.4.50.0030.07016.43
5.4.40.0030.07316.30
5.4.30.0000.05716.57
5.4.20.0070.07016.45
5.4.10.0100.04716.57
5.4.00.0200.07015.93
5.3.290.0100.06714.61
5.3.280.0070.04314.52
5.3.270.0030.04314.72
5.3.260.0070.07014.55
5.3.250.0070.04314.62
5.3.240.0030.06014.78
5.3.230.0030.08714.68
5.3.220.0100.06714.66
5.3.210.0070.06014.62
5.3.200.0070.06314.67
5.3.190.0070.08014.65
5.3.180.0130.06714.58
5.3.170.0030.07014.65
5.3.160.0070.07014.73
5.3.150.0070.06014.65
5.3.140.0130.06014.70
5.3.130.0030.07714.63
5.3.120.0030.07714.46
5.3.110.0030.07714.66
5.3.100.0100.07314.09
5.3.90.0030.07014.17
5.3.80.0070.07714.08
5.3.70.0030.07714.08
5.3.60.0000.06714.12
5.3.50.0070.05714.03
5.3.40.0000.08314.03
5.3.30.0070.07714.00
5.3.20.0030.07313.64
5.3.10.0070.04013.70
5.3.00.0070.05013.49
5.2.170.0100.05012.39
5.2.160.0030.03012.39
5.2.150.0000.06312.39
5.2.140.0130.06312.39
5.2.130.0000.06312.39
5.2.120.0030.03312.39
5.2.110.0000.06312.39
5.2.100.0070.03712.39
5.2.90.0070.05312.39
5.2.80.0000.05712.39
5.2.70.0070.03312.39
5.2.60.0030.06312.39
5.2.50.0030.03712.39
5.2.40.0100.05312.39
5.2.30.0030.06012.39
5.2.20.0030.03312.39
5.2.10.0000.03012.39
5.2.00.0000.03012.39
5.1.60.0070.02012.39
5.1.50.0030.02712.39
5.1.40.0000.02712.39
5.1.30.0000.02312.39
5.1.20.0100.02312.39
5.1.10.0100.01712.39
5.1.00.0000.02712.39
5.0.50.0030.02012.39
5.0.40.0000.01712.39
5.0.30.0030.02312.39
5.0.20.0000.02312.39
5.0.10.0000.02012.39
5.0.00.0030.02312.39
4.4.90.0000.02012.39
4.4.80.0000.04012.39
4.4.70.0000.01712.39
4.4.60.0000.01712.39
4.4.50.0000.01712.39
4.4.40.0030.02712.39
4.4.30.0000.01712.39
4.4.20.0030.01312.39
4.4.10.0030.01312.39
4.4.00.0000.02312.39
4.3.110.0030.01712.39
4.3.100.0000.02712.39
4.3.90.0030.01012.39
4.3.80.0030.04012.39
4.3.70.0000.01312.39
4.3.60.0000.02712.39
4.3.50.0000.01312.39
4.3.40.0030.01712.39
4.3.30.0000.01712.39
4.3.20.0000.03012.39
4.3.10.0030.02012.39
4.3.00.0000.03312.39

preferences:
63.17 ms | 400 KiB | 5 Q