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($xml->node)); var_dump(($xml->node->count())); var_dump(@count($xml->node->children())); var_dump($xml->node->children()->count()); 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(($xml->bar->count())); var_dump(@count($xml->bar->children())); var_dump($xml->bar->children()->count()); echo "----------------------\n"; var_dump(gettype($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)
8.3.70.0130.00918.73
8.3.60.0060.00918.75
8.3.50.0160.00322.10
8.3.40.0150.00019.13
8.3.30.0030.01218.86
8.3.20.0040.00420.54
8.3.10.0040.00423.95
8.3.00.0000.00819.93
8.2.190.0130.00317.11
8.2.180.0090.00616.88
8.2.170.0090.00922.96
8.2.160.0070.00720.80
8.2.150.0000.00824.18
8.2.140.0060.00324.66
8.2.130.0120.00626.16
8.2.120.0090.00017.88
8.2.110.0030.00719.68
8.2.100.0040.00818.16
8.2.90.0060.00319.48
8.2.80.0000.00818.00
8.2.70.0000.00817.75
8.2.60.0030.00518.30
8.2.50.0090.00018.07
8.2.40.0000.00819.43
8.2.30.0040.00420.11
8.2.20.0030.00517.97
8.2.10.0030.00518.24
8.2.00.0070.00018.22
8.1.280.0150.00625.92
8.1.270.0050.01020.50
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00322.36
8.1.230.0090.00319.01
8.1.220.0000.00817.79
8.1.210.0030.00618.77
8.1.200.0090.00017.73
8.1.190.0040.00417.60
8.1.180.0040.00418.10
8.1.170.0040.00418.73
8.1.160.0040.00422.30
8.1.150.0030.00519.10
8.1.140.0040.00417.69
8.1.130.0070.00017.93
8.1.120.0040.00417.74
8.1.110.0000.00717.75
8.1.100.0040.00417.80
8.1.90.0040.00417.68
8.1.80.0000.00817.70
8.1.70.0030.00317.80
8.1.60.0080.00017.73
8.1.50.0040.00417.84
8.1.40.0080.00017.80
8.1.30.0060.00317.90
8.1.20.0030.00517.89
8.1.10.0050.00317.73
8.1.00.0050.00217.69
8.0.300.0000.00718.87
8.0.290.0040.00416.88
8.0.280.0040.00418.73
8.0.270.0070.00017.44
8.0.260.0030.00317.42
8.0.250.0000.00817.35
8.0.240.0030.00317.20
8.0.230.0100.00017.34
8.0.220.0030.00617.11
8.0.210.0030.00517.31
8.0.200.0000.00617.33
8.0.190.0070.00417.34
8.0.180.0030.00517.15
8.0.170.0040.00417.15
8.0.160.0040.00417.31
8.0.150.0070.00017.08
8.0.140.0050.00317.09
8.0.130.0030.00313.75
8.0.120.0060.00317.09
8.0.110.0040.00417.14
8.0.100.0000.00717.15
8.0.90.0040.00417.30
8.0.80.0060.01817.12
8.0.70.0030.00617.07
8.0.60.0080.00017.25
8.0.50.0080.00017.13
8.0.30.0120.00717.41
8.0.20.0130.01117.54
8.0.10.0030.00517.29
8.0.00.0120.00917.00
7.4.330.0070.00015.08
7.4.320.0030.00316.82
7.4.300.0030.00316.88
7.4.290.0020.00716.80
7.4.280.0060.00316.79
7.4.270.0000.00716.91
7.4.260.0000.00716.80
7.4.250.0040.00416.76
7.4.240.0000.00716.77
7.4.230.0070.00016.75
7.4.220.0060.00916.77
7.4.210.0100.00716.85
7.4.200.0040.00416.89
7.4.160.0170.00016.77
7.4.150.0150.00417.40
7.4.140.0100.00817.86
7.4.130.0140.00716.82
7.4.120.0100.00816.81
7.4.110.0040.02016.81
7.4.100.0070.01516.79
7.4.90.0070.01016.86
7.4.80.0050.01319.39
7.4.70.0170.00016.78
7.4.60.0080.00916.79
7.4.50.0000.00817.00
7.4.40.0060.01516.81
7.4.30.0110.00616.96
7.4.00.0000.01515.25
7.3.330.0000.00513.39
7.3.320.0030.00313.37
7.3.310.0000.00716.64
7.3.300.0070.00016.52
7.3.290.0100.00916.52
7.3.280.0110.00916.56
7.3.270.0090.01217.40
7.3.260.0120.00616.57
7.3.250.0080.01016.66
7.3.240.0110.00816.53
7.3.230.0070.01016.59
7.3.210.0100.00716.87
7.3.200.0040.01816.78
7.3.190.0100.01016.59
7.3.180.0070.01016.85
7.3.170.0030.01416.48
7.3.160.0110.00816.57
7.3.120.0060.01314.96
7.3.110.0040.01115.14
7.3.100.0000.01314.91
7.3.90.0060.00614.94
7.3.80.0100.00714.99
7.3.70.0100.00714.77
7.3.60.0040.00814.95
7.3.50.0030.00914.98
7.3.40.0100.00614.95
7.3.30.0090.00614.79
7.3.20.0060.00616.89
7.3.10.0080.00316.80
7.3.00.0140.00716.67
7.2.330.0140.01117.09
7.2.320.0080.00816.95
7.2.310.0080.00816.89
7.2.300.0130.01117.06
7.2.290.0090.00916.91
7.2.240.0030.00715.14
7.2.230.0040.01115.34
7.2.220.0140.00315.27
7.2.210.0060.01015.30
7.2.200.0030.01315.03
7.2.190.0030.00915.39
7.2.180.0090.00615.10
7.2.170.0070.01015.21
7.2.160.0040.01515.30
7.2.150.0070.00717.13
7.2.140.0060.00917.17
7.2.130.0070.00717.10
7.2.120.0060.01017.04
7.2.110.0030.01417.09
7.2.100.0080.00816.88
7.2.90.0030.01017.30
7.2.80.0030.01317.18
7.2.70.0150.00416.91
7.2.60.0060.00617.10
7.2.50.0110.01117.20
7.2.40.0030.01317.12
7.2.30.0090.00917.00
7.2.20.0040.00716.70
7.2.10.0090.00617.03
7.2.00.0120.00916.90
7.1.330.0000.01315.91
7.1.320.0100.00315.89
7.1.310.0070.01016.02
7.1.300.0110.00415.60
7.1.290.0030.00915.84
7.1.280.0000.01316.02
7.1.270.0040.01116.03
7.1.260.0070.01015.82
7.1.250.0150.00415.94
7.1.200.0040.00715.79
7.1.70.0030.00516.92
7.1.60.0050.00519.12
7.1.50.0130.00917.07
7.1.00.0030.07722.44
7.0.200.0230.00616.84
7.0.60.0000.07720.09
7.0.50.0170.06718.03
7.0.40.0070.09020.09
7.0.30.0230.04720.14
7.0.20.0230.03320.37
7.0.10.0030.09020.31
7.0.00.0070.03720.13
5.6.280.0100.05320.97
5.6.210.0230.07320.59
5.6.200.0030.06018.32
5.6.190.0070.04320.50
5.6.180.0230.07320.63
5.6.170.0130.04320.69
5.6.160.0030.04020.50
5.6.150.0000.04318.25
5.6.140.0070.07318.34
5.6.130.0000.06018.17
5.6.120.0070.08721.05
5.6.110.0100.06721.19
5.6.100.0070.08321.04
5.6.90.0030.09021.09
5.6.80.0070.06720.60
5.6.70.0270.05720.50
5.5.350.0330.07320.47
5.5.340.0030.08718.06
5.5.330.0000.04320.64
5.5.320.0400.07320.27
5.5.310.0270.06720.40
5.5.300.0130.07018.05
5.5.290.0130.05718.04
5.5.280.0070.08320.74
5.5.270.0030.04320.93
5.5.260.0100.07320.89
5.5.250.0000.06320.53
5.5.240.0270.04320.38
5.4.450.0530.05719.63
5.4.440.0570.05719.30
5.4.430.0600.04719.52
5.4.420.0530.05319.67
5.4.410.0570.05019.57
5.4.400.0700.04719.20
5.4.390.0730.05019.36
5.4.380.0730.04719.30
5.4.370.0670.05019.20
5.4.360.0700.05019.30
5.4.350.0470.05719.00
5.4.340.0770.04319.32
5.4.320.0670.05319.21
5.4.310.0630.05319.32
5.4.300.0630.05319.36
5.4.290.0670.05319.15
5.4.280.0670.05319.35
5.4.270.0630.05018.98
5.4.260.0630.05319.20
5.4.250.0700.05019.29
5.4.240.0600.05719.20
5.4.230.0700.04719.34
5.4.220.0730.06318.98
5.4.210.0630.05319.29
5.4.200.0670.04319.20
5.4.190.0570.05019.12
5.4.180.0670.05319.35
5.4.170.0670.05019.20
5.4.160.0670.05018.97
5.4.150.0700.04719.19
5.4.140.0670.05016.52
5.4.130.0700.04316.59
5.4.120.0630.05016.52
5.4.110.0530.05316.49
5.4.100.0570.04716.66
5.4.90.0530.05016.66
5.4.80.0670.03716.42
5.4.70.0300.04316.55
5.4.60.0300.07016.61
5.4.50.0030.06716.63
5.4.40.0000.07316.53
5.4.30.0070.05316.23
5.4.20.0070.06016.62

preferences:
52.51 ms | 401 KiB | 5 Q