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 (Error $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)
8.3.60.0130.00718.31
8.3.50.0110.00821.21
8.3.40.0070.01018.92
8.3.30.0000.01418.79
8.3.20.0080.00020.16
8.3.10.0000.00823.40
8.3.00.0000.00823.65
8.2.180.0090.00916.38
8.2.170.0070.00722.96
8.2.160.0110.00720.56
8.2.150.0050.00324.18
8.2.140.0000.00824.66
8.2.130.0050.00319.95
8.2.120.0080.00026.35
8.2.110.0030.00621.04
8.2.100.0090.00317.93
8.2.90.0040.00419.20
8.2.80.0080.00017.97
8.2.70.0060.00317.74
8.2.60.0040.00417.93
8.2.50.0080.00318.07
8.2.40.0080.00022.36
8.2.30.0000.00819.41
8.2.20.0030.00617.89
8.2.10.0070.00318.00
8.2.00.0000.00918.00
8.1.280.0090.00625.92
8.1.270.0100.01023.81
8.1.260.0050.00228.09
8.1.250.0040.00428.09
8.1.240.0030.00622.46
8.1.230.0040.00819.00
8.1.220.0030.00517.74
8.1.210.0040.00418.77
8.1.200.0030.00617.35
8.1.190.0040.00417.35
8.1.180.0060.00318.10
8.1.170.0050.00318.59
8.1.160.0040.00420.86
8.1.150.0000.00818.96
8.1.140.0050.00319.59
8.1.130.0040.00417.64
8.1.120.0000.00717.43
8.1.110.0030.00517.48
8.1.100.0040.00417.42
8.1.90.0070.00017.49
8.1.80.0040.00417.45
8.1.70.0000.00717.38
8.1.60.0040.00717.49
8.1.50.0040.00417.45
8.1.40.0030.00517.55
8.1.30.0030.00517.69
8.1.20.0030.00617.51
8.1.10.0050.00217.56
8.1.00.0000.00717.55
8.0.300.0020.00518.77
8.0.290.0000.00716.63
8.0.280.0030.00318.45
8.0.270.0040.00417.26
8.0.260.0070.00017.14
8.0.250.0000.00717.04
8.0.240.0000.00616.91
8.0.230.0030.00317.03
8.0.220.0000.00716.99
8.0.210.0040.00416.85
8.0.200.0050.00316.98
8.0.190.0030.00616.90
8.0.180.0000.00817.04
8.0.170.0040.00417.02
8.0.160.0030.00316.95
8.0.150.0000.00716.93
8.0.140.0000.00916.88
8.0.130.0000.00613.42
8.0.120.0000.00816.91
8.0.110.0030.00516.95
8.0.100.0000.00716.99
8.0.90.0030.00316.85
8.0.80.0070.00716.95
8.0.70.0000.00716.98
8.0.60.0050.00316.74
8.0.50.0000.00716.92
8.0.30.0070.01017.19
8.0.20.0120.01017.40
8.0.10.0070.00016.96
8.0.00.0120.00916.73
7.4.330.0020.00216.71
7.4.320.0030.00316.49
7.4.300.0080.00016.50
7.4.290.0000.00916.57
7.4.280.0080.00016.55
7.4.270.0040.00416.50
7.4.260.0080.00016.45
7.4.250.0040.00416.38
7.4.240.0040.00316.46
7.4.230.0000.00716.56
7.4.220.0070.01316.70
7.4.210.0120.00616.55
7.4.200.0000.00716.49
7.4.160.0030.01216.59
7.4.150.0030.02117.40
7.4.140.0080.01117.86
7.4.130.0090.00916.48
7.4.120.0170.00416.55
7.4.110.0120.01216.57
7.4.100.0150.00616.48
7.4.90.0130.00416.49
7.4.80.0120.01119.39
7.4.70.0080.00816.45
7.4.60.0100.00616.69
7.4.50.0080.00216.43
7.4.40.0180.00316.48
7.4.30.0040.01416.57
7.4.10.0090.00614.94
7.4.00.0090.00814.90
7.3.330.0030.00313.09
7.3.320.0050.00013.20
7.3.310.0030.00316.40
7.3.300.0040.00416.19
7.3.290.0000.00616.33
7.3.280.0070.01016.36
7.3.270.0080.00817.40
7.3.260.0030.01316.27
7.3.250.0080.01016.31
7.3.240.0070.01016.34
7.3.230.0070.01016.60
7.3.210.0180.00316.66
7.3.200.0120.00619.39
7.3.190.0180.00016.48
7.3.180.0060.01016.50
7.3.170.0100.00716.38
7.3.160.0040.01216.53
7.3.130.0130.00614.99
7.3.120.0100.00815.10
7.3.110.0080.01014.66
7.3.100.0040.01014.94
7.3.90.0050.00915.05
7.3.80.0090.00514.92
7.3.70.0050.00514.80
7.3.60.0080.00214.92
7.3.50.0050.00914.72
7.3.40.0050.00514.62
7.3.30.0050.00914.71
7.3.20.0040.00816.54
7.3.10.0080.00516.60
7.3.00.0040.00616.66
7.2.330.0130.00416.70
7.2.320.0090.01216.78
7.2.310.0130.00316.79
7.2.300.0040.01216.77
7.2.290.0050.01116.75
7.2.260.0040.01514.99
7.2.250.0050.01015.14
7.2.240.0070.00815.17
7.2.230.0030.00914.90
7.2.220.0050.00715.15
7.2.210.0080.00415.00
7.2.200.0080.00815.11
7.2.190.0040.00715.01
7.2.180.0080.00314.98
7.2.170.0030.01115.18
7.2.160.0060.00915.00
7.2.150.0060.00317.04
7.2.140.0080.00416.76
7.2.130.0050.01116.92
7.2.120.0060.00517.01
7.2.110.0050.00716.87
7.2.100.0090.00616.88
7.2.90.0030.00817.01
7.2.80.0080.00516.96
7.2.70.0040.00716.83
7.2.60.0090.00816.91
7.2.50.0050.00717.01
7.2.40.0090.00716.98
7.2.30.0050.00916.82
7.2.20.0060.00816.94
7.2.10.0050.00817.05
7.2.00.0050.00817.53
7.1.330.0060.00915.85
7.1.320.0040.01115.74
7.1.310.0100.00315.71
7.1.300.0070.00715.71
7.1.290.0070.00415.67
7.1.280.0080.00515.71
7.1.270.0080.00315.78
7.1.260.0050.00615.55
7.1.250.0070.00615.68
7.1.240.0080.00315.72
7.1.230.0010.00915.87
7.1.220.0050.00515.51
7.1.210.0060.00615.61
7.1.200.0020.01015.80
7.1.190.0050.00815.57
7.1.180.0070.00515.64
7.1.170.0040.00615.67
7.1.160.0040.01015.60
7.1.150.0040.00815.65
7.1.140.0110.00315.82
7.1.130.0060.00415.67
7.1.120.0080.00815.64
7.1.110.0020.00815.83
7.1.100.0080.00916.48
7.1.90.0100.00315.75
7.1.80.0020.01115.86
7.1.70.0050.00716.10
7.1.60.0090.00716.91
7.1.50.0070.00716.13
7.1.40.0050.00715.84
7.1.30.0070.00415.71
7.1.20.0100.00215.76
7.1.10.0050.00815.61
7.1.00.0060.02817.96
7.0.330.0020.01215.28
7.0.320.0060.00615.46
7.0.310.0090.00515.39
7.0.300.0050.00715.13
7.0.290.0020.01115.46
7.0.280.0080.00615.43
7.0.270.0070.00715.54
7.0.260.0040.01215.34
7.0.250.0050.00615.46
7.0.240.0070.00615.23
7.0.230.0060.00815.13
7.0.220.0050.00715.38
7.0.210.0060.00615.31
7.0.200.0030.00815.83
7.0.190.0030.00815.13
7.0.180.0030.00915.31
7.0.170.0050.00715.44
7.0.160.0030.00915.26
7.0.150.0000.01315.42
7.0.140.0030.00515.28
7.0.130.0030.00815.43
7.0.120.0100.00215.29
7.0.110.0100.00415.40
7.0.100.0080.00315.47
7.0.90.0020.01115.28
7.0.80.0020.01315.32
7.0.70.0050.00615.37
7.0.60.0080.03217.41
7.0.50.0080.03116.26
7.0.40.0020.02315.70
7.0.30.0090.02515.71
7.0.20.0100.02715.61
7.0.10.0090.03315.73
7.0.00.0080.02015.74
5.6.400.0090.00614.49
5.6.390.0000.01414.42
5.6.380.0090.00214.45
5.6.370.0020.01014.38
5.6.360.0030.00814.29
5.6.350.0090.00714.46
5.6.340.0030.00914.53
5.6.330.0070.00814.48
5.6.320.0030.01114.39
5.6.310.0040.00614.45
5.6.300.0100.00114.55
5.6.290.0070.00714.45
5.6.280.0040.02816.58
5.6.270.0030.00614.26
5.6.260.0030.01114.31
5.6.250.0040.00614.21
5.6.240.0070.00614.47
5.6.230.0040.00614.51
5.6.220.0100.00514.14
5.6.210.0130.02416.31
5.6.200.0080.03015.68
5.6.190.0070.02416.33
5.6.180.0200.01916.38
5.6.170.0120.03516.44
5.6.160.0060.01616.39
5.6.150.0030.02015.54
5.6.140.0070.03115.72
5.6.130.0120.01815.57
5.6.120.0080.02916.57
5.6.110.0070.01516.59
5.6.100.0070.03116.58
5.6.90.0060.03016.65
5.6.80.0100.02516.37
5.6.70.0050.01014.28
5.6.60.0090.00214.52
5.6.50.0030.01514.20
5.6.40.0060.00914.20
5.6.30.0010.01214.29
5.6.20.0070.00814.32
5.6.10.0040.01114.34
5.6.00.0070.00814.22
5.5.380.0080.00812.41
5.5.370.0060.00812.48
5.5.360.0050.00612.49
5.5.350.0080.03315.16
5.5.340.0050.03214.27
5.5.330.0090.03315.00
5.5.320.0240.02215.17
5.5.310.0090.01914.91
5.5.300.0100.02714.32
5.5.290.0070.02814.22
5.5.280.0080.03315.12
5.5.270.0100.01815.09
5.5.260.0070.02215.18
5.5.250.0070.03115.02
5.5.240.0090.03014.98
5.5.230.0050.00812.25
5.5.220.0040.00912.37
5.5.210.0040.01212.36
5.5.200.0060.00612.42
5.5.190.0050.00912.40
5.5.180.0060.00312.14
5.5.170.0030.01112.24
5.5.160.0060.00612.39
5.5.150.0030.00812.36
5.5.140.0060.00612.35
5.5.130.0050.00712.42
5.5.120.0030.00912.21
5.5.110.0000.01012.26
5.5.100.0020.00712.32
5.5.90.0080.00312.23
5.5.80.0030.00612.52
5.5.70.0020.01212.12
5.5.60.0030.00712.26
5.5.50.0070.00512.37
5.5.40.0030.00912.34
5.5.30.0040.00812.26
5.5.20.0020.00712.32
5.5.10.0080.00312.17
5.5.00.0070.00412.32

preferences:
65.94 ms | 401 KiB | 5 Q