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: echo $obj->${data[$key]}; // syntax error // 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
8.3.50.0110.00416.14
8.3.40.0040.01118.85
8.3.30.0140.00018.61
8.3.20.0080.00020.16
8.3.10.0080.00023.54
8.3.00.0000.00823.67
8.2.180.0120.00617.00
8.2.170.0100.01022.96
8.2.160.0130.00720.40
8.2.150.0000.00824.18
8.2.140.0080.00024.66
8.2.130.0000.00919.77
8.2.120.0030.00626.35
8.2.110.0100.00021.04
8.2.100.0110.00018.05
8.2.90.0080.00019.34
8.2.80.0050.00317.97
8.2.70.0030.00617.75
8.2.60.0060.00318.04
8.2.50.0080.00418.07
8.2.40.0080.00020.42
8.2.30.0000.00719.51
8.2.20.0000.00817.82
8.2.10.0000.00718.12
8.2.00.0040.00418.13
8.1.280.0040.01125.92
8.1.270.0100.01023.69
8.1.260.0060.00328.09
8.1.250.0070.00028.09
8.1.240.0030.00622.54
8.1.230.0070.00419.16
8.1.220.0090.00017.79
8.1.210.0050.00318.77
8.1.200.0090.00017.35
8.1.190.0080.00017.22
8.1.180.0040.00418.10
8.1.170.0080.00018.58
8.1.160.0000.00720.81
8.1.150.0040.00418.80
8.1.140.0030.00619.54
8.1.130.0030.00317.74
8.1.120.0040.00417.40
8.1.110.0000.00817.36
8.1.100.0040.00417.48
8.1.90.0000.00717.52
8.1.80.0040.00417.39
8.1.70.0050.00217.51
8.1.60.0090.00017.54
8.1.50.0000.00817.40
8.1.40.0030.00517.54
8.1.30.0030.00517.63
8.1.20.0040.00417.62
8.1.10.0040.00417.55
8.1.00.0070.00017.54
8.0.300.0040.00418.77
8.0.290.0050.00216.75
8.0.280.0000.00718.44
8.0.270.0000.00717.17
8.0.260.0000.00617.16
8.0.250.0040.00417.00
8.0.240.0000.00717.04
8.0.230.0000.00717.03
8.0.220.0000.00716.97
8.0.210.0030.00316.94
8.0.200.0000.00616.90
8.0.190.0050.00317.02
8.0.180.0100.00016.97
8.0.170.0000.00817.04
8.0.160.0050.00316.96
8.0.150.0000.00916.97
8.0.140.0030.00616.95
8.0.130.0050.00013.34
8.0.120.0030.00516.94
8.0.110.0080.00016.89
8.0.100.0000.00816.77
8.0.90.0040.00416.86
8.0.80.0090.00617.00
8.0.70.0040.00417.05
8.0.60.0040.00416.85
8.0.50.0030.00516.83
8.0.30.0100.00817.03
8.0.20.0150.00717.40
8.0.10.0000.00717.19
8.0.00.0080.01116.83
7.4.330.0020.00216.73
7.4.320.0060.00016.53
7.4.300.0030.00316.55
7.4.290.0030.00316.40
7.4.280.0030.00616.50
7.4.270.0070.00016.61
7.4.260.0030.00316.63
7.4.250.0000.00716.46
7.4.240.0020.00516.54
7.4.230.0000.00816.50
7.4.220.0100.00916.46
7.4.210.0110.00916.57
7.4.200.0000.00616.67
7.4.160.0070.01016.57
7.4.150.0130.01017.40
7.4.140.0100.01217.86
7.4.130.0120.00916.62
7.4.120.0060.01216.51
7.4.110.0180.00616.49
7.4.100.0150.00616.46
7.4.90.0140.00316.59
7.4.80.0110.01419.39
7.4.70.0090.00616.35
7.4.60.0090.00916.51
7.4.50.0070.00716.67
7.4.40.0060.01116.51
7.4.30.0080.01516.53
7.4.00.0040.00814.82
7.3.330.0050.00013.25
7.3.320.0030.00313.16
7.3.310.0040.00316.33
7.3.300.0070.00016.31
7.3.290.0030.00316.36
7.3.280.0080.00816.34
7.3.270.0030.02017.40
7.3.260.0100.01016.36
7.3.240.0090.01016.61
7.3.230.0100.01316.41
7.3.210.0090.00916.66
7.3.200.0100.01419.39
7.3.190.0080.01116.27
7.3.180.0060.00916.37
7.3.170.0100.00716.52
7.3.160.0120.01216.44
7.2.330.0130.00416.70
7.2.320.0120.00616.51
7.2.310.0100.00616.30
7.2.300.0090.00916.48
7.2.290.0030.01316.82
7.2.60.0050.00516.26
7.2.00.0030.00919.43
7.1.200.0070.00315.80
7.1.100.0130.00617.95
7.1.70.0090.00316.95
7.1.60.0070.01319.30
7.1.50.0070.01416.96
7.1.00.0030.07322.25
7.0.200.0080.00016.48
7.0.60.0270.07321.88
7.0.50.0130.07317.91
7.0.40.0100.04020.30
7.0.30.0130.04320.20
7.0.20.0300.07720.18
7.0.10.0000.09020.04
7.0.00.0070.05720.20
5.6.280.0000.06021.02
5.6.210.0030.04320.54
5.6.200.0100.06318.22
5.6.190.0000.09720.39
5.6.180.0500.06720.44
5.6.170.0430.03720.48
5.6.160.0200.07320.49
5.6.150.0030.04018.21
5.6.140.0030.05318.11
5.6.130.0070.08318.21
5.6.120.0200.07321.01
5.6.110.0070.03721.08
5.6.100.0030.09320.96
5.6.90.0130.06021.01
5.6.80.0170.07020.50
5.5.350.0230.07720.41
5.5.340.0030.04318.07
5.5.330.0100.04320.45
5.5.320.0530.08320.27
5.5.310.0230.03320.41
5.5.300.0070.06317.98
5.5.290.0100.05317.98
5.5.280.0070.04720.68
5.5.270.0100.03720.76
5.5.260.0030.08020.86
5.5.250.0130.07020.69
5.5.240.0130.06720.16

preferences:
55.19 ms | 401 KiB | 5 Q