3v4l.org

run code in 300+ PHP versions simultaneously
<?php $obj = new stdClass(); $obj->bar = "xyz"; $data = array("foo" => "bar"); $key = "foo"; // the good: without and within a string echo $obj->{$data[$key]}; echo "{$obj->{$data[$key]}}"; // the bad: try { echo $obj->${data[$key]}; // syntax error } catch (ParseError $e){ echo $e->getMessage(),"\n"; } // complex curly brace syntax: without and within a string echo $obj->{${'data'}[$key]}; echo "{$obj->{${'data'}[$key]}}";

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)
8.3.60.0170.00316.88
8.3.50.0090.00916.16
8.3.40.0060.00918.84
8.3.30.0110.00418.82
8.3.20.0040.00420.12
8.3.10.0080.00023.65
8.3.00.0000.00823.44
8.2.180.0120.00316.75
8.2.170.0140.00422.96
8.2.160.0160.00320.44
8.2.150.0000.00824.18
8.2.140.0090.00024.66
8.2.130.0040.00419.83
8.2.120.0040.00426.35
8.2.110.0040.00720.97
8.2.100.0040.00718.05
8.2.90.0040.00419.20
8.2.80.0080.00017.97
8.2.70.0060.00317.88
8.2.60.0040.00417.93
8.2.50.0080.00518.07
8.2.40.0040.00422.01
8.2.30.0000.00819.50
8.2.20.0030.00517.84
8.2.10.0000.00818.14
8.2.00.0040.00418.02
8.1.280.0110.00425.92
8.1.270.0110.00323.83
8.1.260.0040.00428.09
8.1.250.0040.00428.09
8.1.240.0030.00722.55
8.1.230.0080.00419.16
8.1.220.0000.00817.74
8.1.210.0030.00518.77
8.1.200.0030.00617.35
8.1.190.0030.00617.22
8.1.180.0030.00518.10
8.1.170.0030.00518.65
8.1.160.0050.00320.82
8.1.150.0070.00018.93
8.1.140.0050.00319.45
8.1.130.0070.00017.57
8.1.120.0040.00417.43
8.1.110.0040.00417.42
8.1.100.0000.00717.52
8.1.90.0040.00417.47
8.1.80.0040.00417.44
8.1.70.0070.00017.30
8.1.60.0040.00417.47
8.1.50.0080.00017.50
8.1.40.0040.00417.41
8.1.30.0040.00417.56
8.1.20.0040.00417.49
8.1.10.0000.00717.60
8.1.00.0040.00417.38
8.0.300.0060.00318.77
8.0.290.0080.00016.72
8.0.280.0080.00018.43
8.0.270.0040.00417.16
8.0.260.0030.00317.16
8.0.250.0030.00317.04
8.0.240.0030.00316.98
8.0.230.0070.00016.97
8.0.220.0030.00316.92
8.0.210.0000.00717.01
8.0.200.0030.00316.99
8.0.190.0040.00416.87
8.0.180.0080.00016.96
8.0.170.0000.00716.96
8.0.160.0000.00716.95
8.0.150.0070.00316.88
8.0.140.0060.00316.96
8.0.130.0030.00313.41
8.0.120.0000.00816.93
8.0.110.0000.00717.00
8.0.100.0050.00216.82
8.0.90.0000.00716.84
8.0.80.0070.00716.93
8.0.70.0000.00817.00
8.0.60.0070.00016.77
8.0.50.0000.00716.82
8.0.30.0110.00816.91
8.0.20.0090.01217.40
8.0.10.0040.00416.96
8.0.00.0110.01116.81
7.4.330.0030.00316.67
7.4.320.0030.00316.50
7.4.300.0040.00416.38
7.4.290.0060.00316.36
7.4.280.0040.00416.52
7.4.270.0070.00016.59
7.4.260.0000.00816.54
7.4.250.0000.00816.46
7.4.240.0030.00416.51
7.4.230.0040.00416.71
7.4.220.0090.00916.57
7.4.210.0080.00916.61
7.4.200.0040.00416.55
7.4.160.0000.01716.61
7.4.150.0170.00717.40
7.4.140.0100.01017.86
7.4.130.0090.01016.65
7.4.120.0120.00516.44
7.4.110.0200.00416.49
7.4.100.0030.01416.58
7.4.90.0040.01316.42
7.4.80.0130.01019.39
7.4.70.0070.01016.43
7.4.60.0110.00716.54
7.4.50.0040.00916.60
7.4.40.0110.00516.48
7.4.30.0050.01116.56
7.4.10.0090.00614.85
7.4.00.0090.00914.94
7.3.330.0030.00313.27
7.3.320.0000.00513.09
7.3.310.0050.00216.47
7.3.300.0040.00416.35
7.3.290.0060.00016.35
7.3.280.0060.01216.31
7.3.270.0170.00017.40
7.3.260.0080.00816.56
7.3.240.0080.01116.52
7.3.230.0100.00716.39
7.3.210.0100.01316.34
7.3.200.0080.00819.39
7.3.190.0120.00616.28
7.3.180.0080.00816.30
7.3.170.0090.00916.34
7.3.160.0080.00816.41
7.3.130.0070.01114.81
7.3.120.0050.01014.72
7.3.110.0030.01514.90
7.3.100.0060.00714.73
7.3.90.0090.00414.85
7.3.80.0040.01014.71
7.3.70.0060.00814.81
7.3.60.0070.00814.89
7.3.50.0070.00714.63
7.3.40.0050.01014.78
7.3.30.0060.00814.69
7.3.20.0040.00916.78
7.3.10.0040.01016.59
7.3.00.0050.00716.64
7.2.330.0070.01116.86
7.2.320.0110.00716.66
7.2.310.0130.00316.50
7.2.300.0100.00716.84
7.2.290.0090.00616.51
7.2.260.0030.01715.26
7.2.250.0100.00715.33
7.2.240.0080.00915.25
7.2.230.0030.01115.18
7.2.220.0050.01115.13
7.2.210.0100.00515.06
7.2.200.0050.01015.05
7.2.190.0070.00915.02
7.2.180.0070.00915.07
7.2.170.0040.01114.92
7.2.160.0060.00614.79
7.2.150.0030.01016.62
7.2.140.0030.01016.61
7.2.130.0120.00316.95
7.2.120.0060.00816.75
7.2.110.0060.00816.68
7.2.100.0030.00816.97
7.2.90.0090.00616.79
7.2.80.0070.00716.92
7.2.70.0130.00916.93
7.2.60.0110.00916.97
7.2.50.0100.00816.94
7.2.40.0100.00817.02
7.2.30.0030.00916.83
7.2.20.0100.00516.67
7.2.10.0030.01116.96
7.2.00.0050.01117.77
7.1.330.0090.00515.80
7.1.320.0090.00515.67
7.1.310.0050.01015.57
7.1.300.0050.00815.81
7.1.290.0060.00715.83
7.1.280.0070.00615.76
7.1.270.0040.01015.83
7.1.260.0070.00615.70
7.1.250.0030.00815.72
7.1.240.0060.00915.80
7.1.230.0060.01215.71
7.1.220.0040.00415.49
7.1.210.0000.01315.94
7.1.200.0070.00915.69
7.1.190.0040.01115.96
7.1.180.0040.00815.56
7.1.170.0030.00615.72
7.1.160.0040.01115.61
7.1.150.0070.00415.75
7.1.140.0030.00615.71
7.1.130.0030.01015.47
7.1.120.0000.01415.82
7.1.110.0030.00615.91
7.1.100.0100.00616.64
7.1.90.0130.00315.55
7.1.80.0090.00315.87
7.1.70.0060.00516.51
7.1.60.0080.01017.45
7.1.50.0080.00816.29
7.1.40.0040.00415.54
7.1.30.0120.00015.86
7.1.20.0070.00715.94
7.1.10.0070.00315.69
7.1.00.0110.03619.04
7.0.330.0030.00615.47
7.0.320.0070.00415.41
7.0.310.0000.01315.13
7.0.300.0030.00915.51
7.0.290.0030.01015.22
7.0.280.0060.00615.20
7.0.270.0090.00315.44
7.0.260.0060.00315.44
7.0.250.0070.00715.50
7.0.240.0090.00615.33
7.0.230.0040.01115.60
7.0.220.0070.00715.54
7.0.210.0080.00315.54
7.0.200.0070.00516.01
7.0.190.0080.00415.46
7.0.180.0070.01015.44
7.0.170.0030.01015.49
7.0.160.0080.00415.57
7.0.150.0060.00915.39
7.0.140.0120.00315.64
7.0.130.0030.00715.61
7.0.120.0070.00715.42
7.0.110.0030.01315.33
7.0.100.0030.01015.45
7.0.90.0030.01215.60
7.0.80.0030.01015.11
7.0.70.0080.00415.59
7.0.60.0150.04318.55
7.0.50.0050.04516.45
7.0.40.0060.02516.93
7.0.30.0100.02516.83
7.0.20.0170.04316.75
7.0.10.0070.04316.66
7.0.00.0130.02516.79
5.6.400.0030.00713.97
5.6.390.0070.00714.40
5.6.380.0030.01014.54
5.6.370.0080.00614.52
5.6.360.0060.00614.07
5.6.350.0070.00714.50
5.6.340.0060.00614.47
5.6.330.0000.01314.43
5.6.320.0080.00814.36
5.6.310.0030.01014.53
5.6.300.0030.00514.28
5.6.290.0030.00614.36
5.6.280.0090.02717.71
5.6.270.0040.00414.40
5.6.260.0000.01314.39
5.6.250.0030.01214.09
5.6.240.0000.01514.44
5.6.230.0070.00414.38
5.6.220.0070.00714.28
5.6.210.0020.03717.38
5.6.200.0050.03716.26
5.6.190.0080.04217.54
5.6.180.0320.03517.31
5.6.170.0280.03617.45
5.6.160.0050.02517.46
5.6.150.0000.02616.33
5.6.140.0110.03916.28
5.6.130.0050.02616.20
5.6.120.0100.02517.92
5.6.110.0050.02217.78
5.6.100.0110.03617.67
5.6.90.0080.03017.82
5.6.80.0050.04217.48
5.6.70.0090.00014.27
5.6.60.0090.00614.30
5.6.50.0030.01014.41
5.6.40.0100.00314.46
5.6.30.0140.00014.24
5.6.20.0040.00414.42
5.6.10.0030.00814.13
5.6.00.0040.00414.57
5.5.380.0000.01013.84
5.5.370.0000.01314.20
5.5.360.0090.00014.07
5.5.350.0070.03517.30
5.5.340.0080.02016.08
5.5.330.0060.04117.23
5.5.320.0350.03317.21
5.5.310.0090.03017.02
5.5.300.0130.03715.91
5.5.290.0070.03415.85
5.5.280.0070.02817.36
5.5.270.0050.02317.49
5.5.260.0100.03517.65
5.5.250.0070.03717.26
5.5.240.0070.03517.15
5.5.230.0000.00913.92
5.5.220.0060.00614.03
5.5.210.0030.00514.20
5.5.200.0030.01313.78
5.5.190.0040.00413.92
5.5.180.0040.01114.13
5.5.170.0090.00413.89
5.5.160.0120.00313.91
5.5.150.0030.01013.95
5.5.140.0030.01013.84
5.5.130.0070.00714.21
5.5.120.0070.00713.89
5.5.110.0000.01213.85
5.5.100.0000.00814.03
5.5.90.0050.00514.17
5.5.80.0030.00813.79
5.5.70.0040.00414.05
5.5.60.0100.00713.82
5.5.50.0040.01113.71
5.5.40.0030.01013.91
5.5.30.0120.00314.02
5.5.20.0090.00614.18
5.5.10.0000.01213.68
5.5.00.0060.01014.16

preferences:
50.45 ms | 400 KiB | 5 Q