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($xml->node->children())); echo "----------------------\n"; var_dump(gettype($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($xml->bar->children())); echo "----------------------\n"; var_dump(gettype($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)
8.3.70.0160.00316.97
8.3.60.0130.00718.56
8.3.50.0190.01121.33
8.3.40.0090.00619.17
8.3.30.0120.00318.96
8.3.20.0070.00020.50
8.3.10.0040.00423.96
8.3.00.0080.00019.88
8.2.190.0040.01116.84
8.2.180.0120.00317.25
8.2.170.0160.00022.96
8.2.160.0100.00320.80
8.2.150.0030.00524.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0050.00317.75
8.2.110.0100.00319.70
8.2.100.0090.00318.09
8.2.90.0080.00018.34
8.2.80.0000.00818.13
8.2.70.0110.00017.88
8.2.60.0000.00818.13
8.2.50.0000.00818.07
8.2.40.0000.00819.56
8.2.30.0090.00020.11
8.2.20.0090.00018.04
8.2.10.0080.00018.43
8.2.00.0070.00018.29
8.1.280.0160.00625.92
8.1.270.0000.00820.76
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0030.00823.89
8.1.230.0130.00022.87
8.1.220.0050.00317.80
8.1.210.0000.00819.01
8.1.200.0060.00317.60
8.1.190.0060.00317.38
8.1.180.0030.00518.10
8.1.170.0040.00418.89
8.1.160.0050.00222.33
8.1.150.0040.00419.02
8.1.140.0040.00417.61
8.1.130.0040.00417.90
8.1.120.0000.00717.75
8.1.110.0040.00417.75
8.1.100.0040.00417.66
8.1.90.0000.00817.63
8.1.80.0080.00017.68
8.1.70.0000.00817.74
8.1.60.0000.00817.73
8.1.50.0050.00317.75
8.1.40.0000.00817.73
8.1.30.0030.00617.98
8.1.20.0000.00717.77
8.1.10.0040.00417.87
8.1.00.0040.00417.77
8.0.300.0000.00820.14
8.0.290.0000.00817.25
8.0.280.0000.00718.71
8.0.270.0000.00717.55
8.0.260.0030.00317.53
8.0.250.0060.00317.34
8.0.240.0040.00417.35
8.0.230.0070.00317.29
8.0.220.0030.00717.14
8.0.210.0000.00817.26
8.0.200.0030.00317.33
8.0.190.0070.00717.27
8.0.180.0040.00417.26
8.0.170.0000.00817.16
8.0.160.0000.00717.25
8.0.150.0000.00717.19
8.0.140.0000.00717.20
8.0.130.0040.00413.68
8.0.120.0030.00517.08
8.0.110.0040.00417.13
8.0.100.0000.00717.12
8.0.90.0000.00817.11
8.0.80.0120.00617.20
8.0.70.0030.00617.23
8.0.60.0040.00417.10
8.0.50.0050.00217.15
8.0.30.0120.00717.60
8.0.20.0110.01117.40
8.0.10.0000.00817.36
8.0.00.0120.00717.12
7.4.330.0000.00615.08
7.4.320.0000.00616.84
7.4.300.0070.00016.90
7.4.290.0000.01016.70
7.4.280.0030.00516.81
7.4.270.0070.00016.89
7.4.260.0000.00716.68
7.4.250.0040.00416.86
7.4.240.0020.00516.81
7.4.230.0030.00516.93
7.4.220.0070.01116.93
7.4.210.0110.01116.86
7.4.200.0000.00816.96
7.4.160.0100.01016.77
7.4.150.0090.01217.40
7.4.140.0130.00517.86
7.4.130.0080.01016.87
7.4.120.0060.01416.91
7.4.110.0090.01216.90
7.4.100.0030.01516.98
7.4.90.0110.00716.52
7.4.80.0090.00919.39
7.4.70.0100.00716.93
7.4.60.0130.00316.99
7.4.50.0080.00016.79
7.4.40.0160.00616.71
7.4.30.0070.01716.67
7.4.10.0070.00716.39
7.4.00.0080.00915.72
7.3.330.0030.00313.45
7.3.320.0000.00513.38
7.3.310.0040.00416.56
7.3.300.0000.00716.51
7.3.290.0070.00916.50
7.3.280.0090.00816.58
7.3.270.0150.00617.40
7.3.260.0060.01216.82
7.3.250.0080.01016.58
7.3.240.0100.00616.61
7.3.230.0090.00916.74
7.3.210.0060.01116.74
7.3.200.0100.00716.58
7.3.190.0070.01116.71
7.3.180.0140.00316.81
7.3.170.0070.01016.82
7.3.160.0140.01516.78
7.3.130.0060.00916.49
7.3.120.0100.00615.73
7.3.110.0070.00915.62
7.3.100.0080.00915.69
7.3.90.0060.01015.86
7.3.80.0040.01015.70
7.3.70.0040.01115.78
7.3.60.0080.00715.67
7.3.50.0100.00515.68
7.3.40.0060.00815.81
7.3.30.0120.00515.59
7.3.20.0060.01117.55
7.3.10.0070.00717.13
7.3.00.0050.00817.08
7.2.330.0070.01016.99
7.2.320.0030.01517.13
7.2.310.0030.01416.86
7.2.300.0090.01217.07
7.2.290.0070.01116.77
7.2.260.0100.01016.81
7.2.250.0090.01115.92
7.2.240.0090.00615.88
7.2.230.0080.00816.03
7.2.220.0060.00916.02
7.2.210.0050.00715.99
7.2.200.0070.01115.93
7.2.190.0030.01315.88
7.2.180.0070.00716.05
7.2.170.0060.00715.99
7.2.160.0080.01116.85
7.2.150.0100.00718.71
7.2.140.0030.00718.46
7.2.130.0070.00817.91
7.2.120.0050.01017.72
7.2.110.0100.00317.71
7.2.100.0050.01017.70
7.2.90.0050.00817.60
7.2.80.0020.01217.85
7.2.70.0070.00817.74
7.2.60.0080.00617.47
7.2.50.0030.00717.88
7.2.40.0050.00617.72
7.2.30.0100.00517.75
7.2.20.0090.00317.87
7.2.10.0090.00617.56
7.2.00.0040.00918.29
7.1.330.0030.01216.74
7.1.320.0080.00516.60
7.1.310.0030.01116.82
7.1.300.0050.00716.68
7.1.290.0060.00716.72
7.1.280.0100.00316.80
7.1.270.0050.01416.57
7.1.260.0090.00516.63
7.1.250.0070.00716.53
7.1.240.0100.00017.33
7.1.230.0070.00417.38
7.1.220.0030.01317.54
7.1.210.0060.01017.60
7.1.200.0050.00716.49
7.1.190.0030.01317.41
7.1.180.0070.00717.58
7.1.170.0070.00317.27
7.1.160.0070.00417.64
7.1.150.0100.00717.55
7.1.140.0000.01017.53
7.1.130.0030.00917.62
7.1.120.0030.01017.43
7.1.110.0070.01017.34
7.1.100.0110.00317.97
7.1.90.0060.00617.36
7.1.80.0060.00317.39
7.1.70.0080.00217.23
7.1.60.0040.00718.29
7.1.50.0050.01317.36
7.1.40.0070.00717.44
7.1.30.0000.01217.62
7.1.20.0030.00817.36
7.1.10.0100.00317.54
7.1.00.0020.04519.98
7.0.330.0070.00717.08
7.0.320.0030.01317.17
7.0.310.0090.00317.22
7.0.300.0070.00717.16
7.0.290.0000.01217.25
7.0.280.0080.00317.25
7.0.270.0060.00917.05
7.0.260.0000.01417.17
7.0.250.0000.01317.25
7.0.240.0070.01117.18
7.0.230.0090.00617.24
7.0.220.0060.00617.08
7.0.210.0090.00317.25
7.0.200.0070.00716.95
7.0.190.0070.00317.24
7.0.180.0070.00717.22
7.0.170.0070.00717.24
7.0.160.0120.00317.22
7.0.150.0040.01117.04
7.0.140.0060.00617.29
7.0.130.0060.00917.29
7.0.120.0070.00717.22
7.0.110.0040.01117.06
7.0.100.0060.00617.17
7.0.90.0030.00917.06
7.0.80.0080.00317.20
7.0.70.0070.00717.06
7.0.60.0070.03718.53
7.0.50.0080.04217.60
7.0.40.0030.03017.81
7.0.30.0320.03517.64
7.0.20.0100.03717.79
7.0.10.0060.04617.62
7.0.00.0110.02817.67
5.6.400.0000.01316.08
5.6.390.0070.00716.17
5.6.380.0030.01316.15
5.6.370.0050.00516.04
5.6.360.0080.00816.18
5.6.350.0030.01016.15
5.6.340.0100.00316.14
5.6.330.0090.00615.80
5.6.320.0070.00315.93
5.6.310.0060.01016.17
5.6.300.0030.00716.01
5.6.290.0090.00616.16
5.6.280.0060.02318.54
5.6.270.0000.01416.04
5.6.260.0060.00916.02
5.6.250.0090.00316.04
5.6.240.0090.00916.07
5.6.230.0080.00816.03
5.6.220.0070.00716.17
5.6.210.0030.04518.35
5.6.200.0060.02217.19
5.6.190.0050.04518.38
5.6.180.0170.04218.49
5.6.170.0220.03718.25
5.6.160.0020.02818.34
5.6.150.0030.03117.15
5.6.140.0080.04317.24
5.6.130.0070.03217.15
5.6.120.0060.02218.62
5.6.110.0030.05318.61
5.6.100.0060.03218.63
5.6.90.0080.03218.64
5.6.80.0060.02918.27
5.6.70.1740.02418.21
5.6.60.0100.00615.88
5.6.50.0060.01016.04
5.6.40.0030.00915.90
5.6.30.0120.00616.23
5.6.20.0000.01816.05
5.6.10.0070.00715.98
5.6.00.0040.01115.91
5.5.380.0040.00915.83
5.5.370.0040.01115.91
5.5.360.0080.00515.79
5.5.350.0050.03918.35
5.5.340.0080.04217.06
5.5.330.0050.03518.27
5.5.320.0130.04118.21
5.5.310.0100.02218.01
5.5.300.0060.03916.80
5.5.290.0080.04417.00
5.5.280.0060.02318.49
5.5.270.0070.04818.44
5.5.260.0060.04818.36
5.5.250.0080.04318.15
5.5.240.0060.03118.12
5.5.230.0120.00615.79
5.5.220.0130.00015.81
5.5.210.0040.00715.97
5.5.200.0030.00716.11
5.5.190.0040.01115.65
5.5.180.0110.00415.73
5.5.170.0080.00815.97
5.5.160.0060.01315.89
5.5.150.0060.01015.85
5.5.140.0000.01515.87
5.5.130.0030.01415.82
5.5.120.0030.01015.82
5.5.110.0030.01016.02
5.5.100.0110.00015.99
5.5.90.0000.01116.01
5.5.80.0030.01016.08
5.5.70.0100.00315.82
5.5.60.0040.00716.00
5.5.50.0090.00015.97
5.5.40.0000.00915.84
5.5.30.0090.00616.01
5.5.20.0070.01015.66
5.5.10.0060.00315.93
5.5.00.0070.00315.81
5.4.450.0350.02516.26
5.4.440.0330.04016.25
5.4.430.0370.03516.16
5.4.420.0280.02916.01
5.4.410.0300.02816.16
5.4.400.0270.03315.84
5.4.390.0280.03315.87
5.4.380.0350.03016.04
5.4.370.0350.03715.96
5.4.360.0300.03316.00
5.4.350.0280.03315.99
5.4.340.0260.03216.03
5.4.330.0040.00812.70
5.4.320.0300.03016.10
5.4.310.0300.03016.00
5.4.300.0310.02716.02
5.4.290.0250.03315.96
5.4.280.0270.03516.04
5.4.270.0390.03016.03
5.4.260.0350.02716.04
5.4.250.0330.02415.99
5.4.240.0250.03415.85
5.4.230.0280.03015.84
5.4.220.0280.03316.04
5.4.210.0270.03416.01
5.4.200.0290.03116.02
5.4.190.0310.02815.92
5.4.180.0300.03016.03
5.4.170.0320.02516.00
5.4.160.0270.03016.00
5.4.150.0360.02816.07
5.4.140.0390.03114.58
5.4.130.0250.03214.58
5.4.120.0320.03114.69
5.4.110.0430.02614.71
5.4.100.0390.03314.73
5.4.90.0470.03114.50
5.4.80.0330.02914.77
5.4.70.0120.03514.55
5.4.60.0120.03014.68
5.4.50.0030.04214.51
5.4.40.0050.02814.65
5.4.30.0020.03514.56
5.4.20.0030.02014.58
5.4.10.0030.00312.70
5.4.00.0070.00312.70

preferences:
56.26 ms | 401 KiB | 5 Q