3v4l.org

run code in 300+ PHP versions simultaneously
<?php $obj = new stdClass(); $obj->bar = "123"; $data = ["foo" => "bar"]; $key = "foo"; echo $obj->{ $data[$key] },"\n"; echo $obj->{ ${'data'}[$key] },"\n"; echo "{$obj->{ $data[$key] }}\n"; echo $obj->{ $data[$key]},"\n"; echo "{$obj->{ ${'data'}[$key] }}\n"; echo $obj->{ ${'data'}[$key] },"\n"; echo "{${'obj'}->{ ${'data'}[$key] }}\n"; echo ${'obj'}->{ ${'data'}[$key] },"\n"; 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)
8.3.60.0130.01016.88
8.3.50.0130.00621.14
8.3.40.0070.01118.86
8.3.30.0140.00018.80
8.3.20.0040.00420.08
8.3.10.0000.00823.38
8.3.00.0130.00623.55
8.2.180.0150.00418.16
8.2.170.0110.00722.96
8.2.160.0040.01119.23
8.2.150.0060.00324.18
8.2.140.0040.00424.66
8.2.130.0050.00519.96
8.2.120.0040.00426.35
8.2.110.0030.00721.18
8.2.100.0080.00418.04
8.2.90.0000.00819.31
8.2.80.0080.00017.97
8.2.70.0090.00017.38
8.2.60.0110.00017.91
8.2.50.0030.00518.07
8.2.40.0080.00420.59
8.2.30.0000.00719.39
8.2.20.0080.00017.87
8.2.10.0060.00318.13
8.2.00.0040.00418.24
8.1.280.0070.00725.92
8.1.270.0060.00323.99
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0060.00323.92
8.1.230.0070.00419.16
8.1.220.0000.00917.80
8.1.210.0000.00918.77
8.1.200.0000.00917.36
8.1.190.0070.00317.35
8.1.180.0040.00418.10
8.1.170.0000.00818.64
8.1.160.0040.00420.78
8.1.150.0000.00818.83
8.1.140.0040.00419.64
8.1.130.0040.00417.77
8.1.120.0030.00417.49
8.1.110.0060.00317.47
8.1.100.0040.00417.38
8.1.90.0000.00717.40
8.1.80.0070.00017.37
8.1.70.0030.00317.41
8.1.60.0040.00417.48
8.1.50.0050.00317.55
8.1.40.0040.00417.52
8.1.30.0030.00517.67
8.1.20.0050.00317.66
8.1.10.0050.00317.57
8.1.00.0000.00717.47
8.0.300.0000.00718.77
8.0.290.0040.00416.61
8.0.280.0030.00318.46
8.0.270.0080.00017.27
8.0.260.0030.00317.30
8.0.250.0040.00317.01
8.0.240.0030.00316.95
8.0.230.0070.00017.05
8.0.220.0040.00416.96
8.0.210.0040.00416.98
8.0.200.0020.00516.90
8.0.190.0040.00417.02
8.0.180.0070.00016.91
8.0.170.0000.00817.02
8.0.160.0030.00516.97
8.0.150.0030.00316.88
8.0.140.0040.00416.96
8.0.130.0030.00313.38
8.0.120.0000.00816.86
8.0.110.0000.00916.91
8.0.100.0050.00216.84
8.0.90.0000.00816.93
8.0.80.0000.01416.89
8.0.70.0070.00016.96
8.0.60.0040.00316.86
8.0.50.0040.00416.86
8.0.30.0110.01116.97
8.0.20.0100.00917.40
8.0.10.0070.00016.97
8.0.00.0040.01416.89
7.4.330.0000.00516.81
7.4.320.0080.00016.49
7.4.300.0040.00416.65
7.4.290.0040.00416.61
7.4.280.0000.01016.52
7.4.270.0030.00316.61
7.4.260.0030.00316.41
7.4.250.0030.00616.48
7.4.240.0010.00716.50
7.4.230.0000.00716.62
7.4.220.0070.01116.67
7.4.210.0110.00416.50
7.4.200.0030.00316.46
7.4.160.0030.01216.34
7.4.150.0070.01117.40
7.4.140.0100.01017.86
7.4.130.0090.00816.58
7.4.120.0120.00916.70
7.4.110.0070.01116.48
7.4.100.0070.01016.69
7.4.90.0120.00616.66
7.4.80.0100.01019.39
7.4.70.0040.01316.61
7.4.60.0070.01316.71
7.4.50.0100.00216.47
7.4.40.0070.01016.55
7.4.30.0120.00616.36
7.4.00.0110.00614.95
7.3.330.0030.00313.27
7.3.320.0040.00313.07
7.3.310.0000.00716.29
7.3.300.0030.00316.24
7.3.290.0080.00816.34
7.3.280.0070.00916.36
7.3.270.0090.00917.40
7.3.260.0140.01016.56
7.3.250.0130.00616.45
7.3.240.0090.00816.52
7.3.230.0100.00716.39
7.3.210.0130.00316.63
7.3.200.0030.01519.39
7.3.190.0120.00416.31
7.3.180.0060.01016.45
7.3.170.0060.01516.37
7.3.160.0060.01116.39
7.3.120.0090.00914.43
7.3.110.0080.00314.60
7.3.100.0130.00614.57
7.3.90.0040.01415.04
7.3.80.0090.00914.98
7.3.70.0070.01114.97
7.3.60.0090.00314.61
7.3.50.0120.00314.43
7.3.40.0030.01414.93
7.3.30.0060.00914.64
7.3.20.0040.01116.75
7.3.10.0040.01216.30
7.3.00.0070.00716.75
7.2.330.0150.00316.53
7.2.320.0110.00616.52
7.2.310.0090.00816.46
7.2.300.0030.01316.40
7.2.290.0030.01416.69
7.2.250.0110.00715.01
7.2.240.0060.01315.03
7.2.230.0090.00914.86
7.2.220.0090.00915.07
7.2.210.0040.01515.22
7.2.200.0040.01114.95
7.2.190.0100.00614.78
7.2.180.0060.01315.05
7.2.170.0030.00614.86
7.2.60.0100.00317.04
7.2.00.0000.01619.41
7.1.330.0060.00915.73
7.1.320.0000.01315.62
7.1.310.0070.01115.95
7.1.300.0040.00815.61
7.1.290.0040.01515.45
7.1.280.0000.00915.76
7.1.270.0090.00315.75
7.1.260.0030.00915.68
7.1.200.0050.00515.86
7.1.100.0030.00917.52
7.1.70.0030.01317.28
7.1.60.0090.01519.30
7.1.50.0030.00716.72
7.1.00.0100.07022.30
7.0.200.0070.00316.72
7.0.60.0370.07319.91
7.0.50.0030.04317.82
7.0.40.0070.08319.90
7.0.30.0270.07020.30
7.0.20.0470.05720.00
7.0.10.0130.08320.09
7.0.00.0130.07020.00
5.6.280.0000.04321.09
5.6.210.0100.08020.69
5.6.200.0100.07018.12
5.6.190.0070.05320.41
5.6.180.0430.05320.60
5.6.170.0230.04320.38
5.6.160.0130.06020.54
5.6.150.0070.08018.18
5.6.140.0100.07718.15
5.6.130.0030.04018.18
5.6.120.0130.08021.14
5.6.110.0130.07720.89
5.6.100.0030.07321.03
5.6.90.0070.03721.03
5.6.80.0070.07720.50
5.5.350.0130.04020.40
5.5.340.0130.07317.95
5.5.330.0100.07320.23
5.5.320.0330.07320.41
5.5.310.0170.04020.20
5.5.300.0030.06318.00
5.5.290.0130.05017.95
5.5.280.0270.03020.84
5.5.270.0130.07720.73
5.5.260.0100.03320.85
5.5.250.0100.04320.64
5.5.240.0200.03020.36

preferences:
41.94 ms | 401 KiB | 5 Q