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)
8.3.60.0110.01117.13
8.3.50.0100.01022.16
8.3.40.0070.00719.09
8.3.30.0150.00019.20
8.3.20.0000.00820.54
8.3.10.0080.00023.91
8.3.00.0100.00019.63
8.2.180.0160.00318.66
8.2.170.0110.01122.96
8.2.160.0110.00320.46
8.2.150.0070.00724.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0000.00922.55
8.2.110.0030.00622.41
8.2.100.0080.00417.97
8.2.90.0040.00419.27
8.2.80.0050.00318.15
8.2.70.0040.00417.63
8.2.60.0050.00318.29
8.2.50.0030.00718.07
8.2.40.0080.00018.34
8.2.30.0000.00818.16
8.2.20.0050.00318.02
8.2.10.0060.00319.98
8.2.00.0050.00518.06
8.1.280.0110.00425.92
8.1.270.0040.00422.58
8.1.260.0070.00426.35
8.1.250.0040.00428.09
8.1.240.0070.00324.10
8.1.230.0060.00619.38
8.1.220.0060.00317.80
8.1.210.0000.00918.77
8.1.200.0030.00717.73
8.1.190.0030.00617.77
8.1.180.0040.00418.10
8.1.170.0040.00418.98
8.1.160.0000.00722.21
8.1.150.0040.00418.95
8.1.140.0000.00817.67
8.1.130.0030.00318.09
8.1.120.0040.00417.81
8.1.110.0040.00417.60
8.1.100.0040.00417.70
8.1.90.0000.00717.78
8.1.80.0030.00317.64
8.1.70.0040.00417.70
8.1.60.0000.00817.69
8.1.50.0000.00817.80
8.1.40.0040.00417.70
8.1.30.0000.00817.77
8.1.20.0000.00817.87
8.1.10.0040.00417.86
8.1.00.0030.00617.84
8.0.300.0000.00718.77
8.0.290.0000.00717.43
8.0.280.0000.00718.51
8.0.270.0070.00017.43
8.0.260.0000.00717.20
8.0.250.0000.00717.28
8.0.240.0070.00017.30
8.0.230.0070.00017.26
8.0.220.0090.00017.20
8.0.210.0000.00717.13
8.0.200.0060.00017.34
8.0.190.0030.00617.33
8.0.180.0050.00317.24
8.0.170.0000.00817.32
8.0.160.0000.00917.06
8.0.150.0000.00717.22
8.0.140.0030.00617.14
8.0.130.0000.00613.60
8.0.120.0060.00317.19
8.0.110.0050.00317.24
8.0.100.0040.00417.14
8.0.90.0040.00417.16
8.0.80.0070.00717.20
8.0.70.0040.00417.08
8.0.60.0040.00417.05
8.0.50.0000.00817.28
8.0.30.0130.00617.19
8.0.20.0110.00717.40
8.0.10.0000.00717.28
8.0.00.0180.00117.03
7.4.330.0000.00515.30
7.4.320.0000.00616.88
7.4.300.0060.00016.78
7.4.290.0030.00616.85
7.4.280.0000.00716.76
7.4.270.0030.00316.80
7.4.260.0000.00916.85
7.4.250.0000.00816.75
7.4.240.0010.00616.72
7.4.230.0000.00716.63
7.4.220.0130.00616.67
7.4.210.0100.00616.80
7.4.200.0000.00816.63
7.4.190.0080.00016.75
7.4.160.0070.01016.80
7.4.150.0070.01117.40
7.4.140.0080.01017.86
7.4.130.0110.00916.64
7.4.120.0050.01216.82
7.4.110.0130.00916.64
7.4.100.0070.01316.57
7.4.90.0040.01216.82
7.4.80.0080.01719.39
7.4.70.0080.00816.82
7.4.60.0070.01016.89
7.4.50.0000.00616.68
7.4.40.0070.01022.77
7.4.30.0160.00316.53
7.4.00.0050.01314.97
7.3.330.0000.00513.33
7.3.320.0000.00513.47
7.3.310.0040.00416.52
7.3.300.0080.00016.43
7.3.290.0070.00716.55
7.3.280.0090.01016.54
7.3.270.0120.00617.40
7.3.260.0070.01416.79
7.3.250.0120.00716.67
7.3.240.0070.01116.41
7.3.230.0080.00816.65
7.3.210.0090.00916.83
7.3.200.0150.00319.39
7.3.190.0090.00916.45
7.3.180.0100.00716.49
7.3.170.0140.00416.48
7.3.160.0030.01416.50
7.3.120.0060.01015.00
7.3.110.0060.01014.86
7.3.100.0150.00415.00
7.3.90.0040.01414.89
7.3.80.0030.01114.80
7.3.70.0120.00614.98
7.3.60.0040.00714.81
7.3.50.0060.01015.01
7.3.40.0030.00614.99
7.3.30.0030.00614.60
7.3.20.0070.00616.68
7.3.10.0060.00616.48
7.3.00.0000.01116.77
7.2.330.0100.01016.75
7.2.320.0040.01316.79
7.2.310.0070.01016.80
7.2.300.0100.00716.94
7.2.290.0070.01016.97
7.2.250.0070.01114.79
7.2.240.0060.01315.27
7.2.230.0070.01015.11
7.2.220.0070.00315.10
7.2.210.0040.01114.93
7.2.200.0070.00715.13
7.2.190.0030.00915.46
7.2.180.0060.00615.32
7.2.170.0110.00715.00
7.2.60.0030.01016.73
7.2.00.0030.01219.63
7.1.330.0080.00815.83
7.1.320.0030.00715.88
7.1.310.0030.01316.02
7.1.300.0070.00715.65
7.1.290.0070.00715.92
7.1.280.0030.00715.82
7.1.270.0060.00615.89
7.1.260.0060.00615.94
7.1.200.0030.00915.89
7.1.100.0000.01018.20
7.1.70.0060.00916.93
7.1.60.0070.01019.33
7.1.50.0120.00834.93
7.1.00.0030.07722.42
7.0.200.0040.00416.97
7.0.140.0000.07722.19
7.0.100.0070.07720.13
7.0.90.0530.08020.07
7.0.80.0370.08320.21
7.0.70.0100.04020.09
7.0.60.0130.07319.96
7.0.50.0070.07320.46
7.0.40.0100.03320.05
7.0.30.0030.07320.13
7.0.20.0100.05320.07
7.0.10.0070.05320.03
7.0.00.0030.04720.03
5.6.280.0070.07021.14
5.6.250.0030.08320.54
5.6.240.0130.08020.57
5.6.230.0100.07720.79
5.6.220.0030.04020.70
5.6.210.0030.04720.55
5.6.200.0100.04321.15
5.6.190.0070.04021.10
5.6.180.0070.05721.00
5.6.170.0030.04021.11
5.6.160.0030.04021.11
5.6.150.0170.03321.17
5.6.140.0070.08021.14
5.6.130.0000.05321.17
5.6.120.0000.04721.30
5.6.110.0030.04321.28
5.6.100.0070.06021.29
5.6.90.0070.04020.97
5.6.80.0070.03720.53
5.6.70.0070.03720.54
5.6.60.0100.03320.45
5.6.50.0030.04720.67
5.6.40.0000.04320.55
5.6.30.0100.03320.44
5.6.20.0000.04320.65
5.6.10.0000.04020.50
5.6.00.0100.03320.63
5.5.380.0070.08020.37
5.5.370.0070.07020.41
5.5.360.0030.06320.61
5.5.350.0070.04320.51
5.5.340.0030.04020.87
5.5.330.0000.04320.89
5.5.320.0070.03720.75
5.5.310.0000.08320.81
5.5.300.0070.05320.96
5.5.290.0100.03321.01
5.5.280.0100.03321.01
5.5.270.0000.05320.79
5.5.260.0000.06721.05
5.5.250.0000.04320.60
5.5.240.0130.02720.25
5.5.230.0070.03720.42
5.5.220.0030.04020.36
5.5.210.0000.04320.40
5.5.200.0070.03720.25
5.5.190.0070.04320.21
5.5.180.0030.04020.10
5.5.160.0000.04020.21
5.5.150.0000.04320.27
5.5.140.0070.03720.34
5.5.130.0100.03720.36
5.5.120.0070.04720.27
5.5.110.0030.09020.28
5.5.100.0030.07020.07
5.5.90.0230.05720.06
5.5.80.0000.08320.27
5.5.70.0130.07020.15
5.5.60.0100.07320.21
5.5.50.0070.08020.23
5.5.40.0070.07320.08
5.5.30.0070.07320.09
5.5.20.0100.05020.10
5.5.10.0100.07320.13
5.5.00.0030.05020.18
5.4.450.0000.04319.45
5.4.440.0070.03719.18
5.4.430.0030.05319.54
5.4.420.0070.05019.52
5.4.410.0070.03719.02
5.4.400.0070.05019.18
5.4.390.0070.03719.12
5.4.380.0030.04319.17
5.4.370.0030.03719.11
5.4.360.0030.04019.16
5.4.350.0030.03719.17
5.4.340.0000.04319.12
5.4.320.0000.04019.16
5.4.310.0070.03318.89
5.4.300.0070.06719.17
5.4.290.0100.07019.17
5.4.280.0100.06319.17
5.4.270.0030.05719.10
5.4.260.0130.07018.88
5.4.250.0200.06319.10
5.4.240.0130.05718.88
5.4.230.0200.06319.19
5.4.220.0170.06319.21
5.4.210.0130.07019.09
5.4.200.0070.07719.16
5.4.190.0030.08019.11
5.4.180.0070.04319.15
5.4.170.0130.07319.18
5.4.160.0070.06719.01
5.4.150.0100.04019.36
5.4.140.0100.07316.49
5.4.130.0030.07716.45
5.4.120.0130.06716.33
5.4.110.0030.08016.62
5.4.100.0030.07716.39
5.4.90.0070.04316.56
5.4.80.0030.07716.38
5.4.70.0070.07016.45
5.4.60.0130.05716.31
5.4.50.0030.04316.52
5.4.40.0100.06316.54
5.4.30.0070.06716.40
5.4.20.0030.06016.49
5.4.10.0030.07716.40
5.4.00.0070.07715.80
5.3.290.0030.06014.58
5.3.280.0100.07314.74
5.3.270.0030.08714.76
5.3.260.0100.06314.70
5.3.250.0070.05714.76
5.3.240.0130.07714.57
5.3.230.0130.07014.71
5.3.220.0000.05014.66
5.3.210.0200.06314.65
5.3.200.0070.07714.64
5.3.190.0170.06714.65
5.3.180.0070.07014.64
5.3.170.0170.06314.64
5.3.160.0100.06714.64
5.3.150.0170.06314.71
5.3.140.0100.07714.51
5.3.130.0100.07314.64
5.3.120.0030.03714.63
5.3.110.0100.07714.69
5.3.100.0130.07014.13
5.3.90.0070.06713.96
5.3.80.0100.07313.98
5.3.70.0070.07014.18
5.3.60.0030.08014.05
5.3.50.0000.05714.00
5.3.40.0130.05714.07
5.3.30.0130.06713.86
5.3.20.0100.06713.78
5.3.10.0100.06713.72
5.3.00.0030.07313.72
5.2.170.0000.07011.99
5.2.160.0000.04311.99
5.2.150.0100.05311.99
5.2.140.0100.06011.99
5.2.130.0030.06311.99
5.2.120.0070.03711.99
5.2.110.0100.02711.99
5.2.100.0030.06711.99
5.2.90.0070.05711.99
5.2.80.0030.06011.99
5.2.70.0030.05711.99
5.2.60.0100.05311.99
5.2.50.0000.04011.99
5.2.40.0070.06011.99
5.2.30.0070.06011.99
5.2.20.0030.03711.99
5.2.10.0070.05711.99
5.2.00.0030.03311.99
5.1.60.0100.04711.99
5.1.50.0070.05011.99
5.1.40.0100.04711.99
5.1.30.0030.05311.99
5.1.20.0030.05711.99
5.1.10.0030.03011.99
5.1.00.0030.05711.99
5.0.50.0070.04711.99
5.0.40.0030.04311.99
5.0.30.0030.06711.99
5.0.20.0000.03011.99
5.0.10.0100.02311.99
5.0.00.0030.06311.99
4.4.90.0070.01311.99
4.4.80.0030.03311.99
4.4.70.0000.04011.99
4.4.60.0070.03311.99
4.4.50.0000.03711.99
4.4.40.0030.03711.99
4.4.30.0000.02011.99
4.4.20.0100.02711.99
4.4.10.0070.01711.99
4.4.00.0000.05311.99
4.3.110.0070.03311.99
4.3.100.0030.03311.99
4.3.90.0070.03011.99
4.3.80.0000.05311.99
4.3.70.0030.02711.99
4.3.60.0030.03311.99
4.3.50.0000.03311.99
4.3.40.0030.05011.99
4.3.30.0000.03711.99
4.3.20.0000.03311.99
4.3.10.0000.03711.99
4.3.00.0030.03011.99

preferences:
37.65 ms | 401 KiB | 5 Q