3v4l.org

run code in 300+ PHP versions simultaneously
<?php $obj = new stdClass; $data = ["foo"=>"bar"]; $key = "foo"; $obj->data = $data; echo "{$obj->{ ${'data'}[$key] }}\n"; echo "{$obj->{ ${data}[$key] }}\n";

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)
8.3.60.0040.01118.56
8.3.50.0040.01118.24
8.3.40.0070.00718.76
8.3.30.0110.00418.90
8.3.20.0040.00420.18
8.3.10.0080.00021.91
8.3.00.0090.00023.66
8.2.180.0120.00318.41
8.2.170.0140.00422.96
8.2.160.0100.00320.39
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0080.00019.85
8.2.120.0000.00726.35
8.2.110.0060.00321.04
8.2.100.0090.00317.78
8.2.90.0000.00818.15
8.2.80.0040.00417.97
8.2.70.0000.00917.75
8.2.60.0040.00418.04
8.2.50.0040.00418.07
8.2.40.0050.00322.34
8.2.30.0070.00019.50
8.2.20.0000.00717.82
8.2.10.0050.00218.15
8.2.00.0090.00018.13
8.1.280.0180.00425.92
8.1.270.0000.00823.97
8.1.260.0070.00028.09
8.1.250.0040.00428.09
8.1.240.0090.00023.92
8.1.230.0070.00320.97
8.1.220.0030.00617.74
8.1.210.0040.00418.94
8.1.200.0000.00817.35
8.1.190.0060.00317.13
8.1.180.0040.00418.10
8.1.170.0050.00318.71
8.1.160.0040.00420.76
8.1.150.0040.00418.95
8.1.140.0030.00519.57
8.1.130.0040.00417.70
8.1.120.0000.00717.48
8.1.110.0030.00417.33
8.1.100.0020.00517.28
8.1.90.0000.00817.45
8.1.80.0040.00417.41
8.1.70.0030.00317.38
8.1.60.0000.00817.64
8.1.50.0120.00017.43
8.1.40.0000.00717.53
8.1.30.0040.00417.56
8.1.20.0000.00817.64
8.1.10.0000.00717.55
8.1.00.0040.00417.36
8.0.300.0000.00719.98
8.0.290.0040.00416.75
8.0.280.0040.00418.36
8.0.270.0070.00017.25
8.0.260.0030.00517.29
8.0.250.0000.01017.07
8.0.240.0090.00016.95
8.0.230.0070.00016.89
8.0.220.0000.00716.84
8.0.210.0000.00916.92
8.0.200.0000.00617.00
8.0.190.0060.00317.03
8.0.180.0000.00816.98
8.0.170.0050.00316.90
8.0.160.0070.00016.96
8.0.150.0040.00416.82
8.0.140.0040.00416.89
8.0.130.0040.00413.39
8.0.120.0000.00816.84
8.0.110.0050.00216.89
8.0.100.0000.00816.78
8.0.90.0040.00416.99
8.0.80.0120.00317.02
8.0.70.0040.00416.78
8.0.60.0000.00717.01
8.0.50.0000.00716.82
8.0.30.0100.01216.92
8.0.20.0100.01017.40
8.0.10.0000.00717.19
8.0.00.0080.01216.87
7.4.330.0000.00516.89
7.4.320.0030.00316.53
7.4.300.0040.00416.60
7.4.290.0040.00416.48
7.4.280.0050.00516.44
7.4.270.0000.00716.59
7.4.260.0030.00316.59
7.4.250.0080.00016.40
7.4.240.0060.00116.58
7.4.230.0000.00716.64
7.4.220.0130.01616.70
7.4.210.0000.01416.71
7.4.200.0030.00316.41
7.4.160.0080.00816.50
7.4.150.0300.01517.40
7.4.140.0100.01217.86
7.4.130.0090.00916.50
7.4.120.0030.01316.60
7.4.110.0070.01716.40
7.4.100.0080.00816.50
7.4.90.0200.00316.58
7.4.80.0090.00919.39
7.4.70.0150.01016.62
7.4.60.0190.00316.50
7.4.50.0040.01116.63
7.4.40.0130.00416.40
7.4.30.0140.00716.42
7.4.00.0110.00414.84
7.3.330.0000.00513.22
7.3.320.0050.00313.41
7.3.310.0080.00016.25
7.3.300.0000.00716.30
7.3.290.0100.00616.38
7.3.280.0060.01216.45
7.3.270.0080.01117.40
7.3.260.0100.00716.55
7.3.240.0120.00816.44
7.3.230.0080.00816.56
7.3.210.0160.00016.41
7.3.200.0080.00819.39
7.3.190.0130.00316.31
7.3.180.0110.01116.29
7.3.170.0170.00616.36
7.3.160.0150.00616.32
7.2.330.0170.00016.41
7.2.320.0090.00916.52
7.2.310.0060.01716.56
7.2.300.0030.01416.58
7.2.290.0030.01316.81
7.2.60.0040.00816.72
7.2.00.0060.00619.14
7.1.200.0040.00715.50
7.1.100.0040.01318.20
7.1.70.0040.00417.13
7.1.60.0100.01319.30
7.1.50.0040.01817.01
7.1.00.0100.08322.54
7.0.200.0000.00716.63
7.0.60.0170.08321.78
7.0.50.0070.03717.88
7.0.40.0030.04320.02
7.0.30.0230.04020.02
7.0.20.0300.08020.17
7.0.10.0070.04020.01
7.0.00.0000.07020.19
5.6.280.0070.04721.11
5.6.210.0130.05320.72
5.6.200.0030.05718.12
5.6.190.0030.04720.33
5.6.180.0530.04020.34
5.6.170.0270.08720.52
5.6.160.0130.07020.71
5.6.150.0070.07318.12
5.6.140.0000.04718.18
5.6.130.0070.04018.18
5.6.120.0070.07321.11
5.6.110.0100.07720.98
5.6.100.0070.06021.12
5.6.90.0070.03720.92
5.6.80.0070.07720.48
5.5.350.0170.03320.27
5.5.340.0130.07717.92
5.5.330.0100.07020.30
5.5.320.0530.04020.30
5.5.310.0300.07320.27
5.5.300.0000.06718.02
5.5.290.0100.06317.98
5.5.280.0070.05020.77
5.5.270.0070.07320.76
5.5.260.0100.04320.86
5.5.250.0130.07320.65
5.5.240.0170.06720.36

preferences:
48.49 ms | 400 KiB | 5 Q