3v4l.org

run code in 300+ PHP versions simultaneously
<?php $attachments = array('a',2=>'b',3=>'c'); $id = (key($attachments)); echo $id;

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)
8.3.60.0070.01316.50
8.3.50.0050.01022.06
8.3.40.0210.00018.58
8.3.30.0090.00618.82
8.3.20.0080.00020.09
8.3.10.0070.00323.30
8.3.00.0000.01117.25
8.2.180.0100.00718.19
8.2.170.0140.00022.96
8.2.160.0090.00922.18
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0110.00622.12
8.2.110.0080.00022.25
8.2.100.0070.00317.84
8.2.90.0000.00819.23
8.2.80.0040.00417.97
8.2.70.0050.00317.50
8.2.60.0030.00618.04
8.2.50.0000.00818.07
8.2.40.0090.00019.92
8.2.30.0040.00418.15
8.2.20.0000.00817.63
8.2.10.0080.00018.10
8.2.00.0050.00217.79
8.1.280.0070.00725.92
8.1.270.0040.00423.88
8.1.260.0110.00426.35
8.1.250.0050.00328.09
8.1.240.0030.00623.89
8.1.230.0000.01218.97
8.1.220.0060.00317.74
8.1.210.0000.00818.77
8.1.200.0030.00617.13
8.1.190.0050.00317.10
8.1.180.0060.00318.10
8.1.170.0040.00418.48
8.1.160.0040.00421.97
8.1.150.0080.00018.41
8.1.140.0040.00417.29
8.1.130.0030.00517.74
8.1.120.0040.00417.45
8.1.110.0000.00717.31
8.1.100.0030.00317.28
8.1.90.0030.00317.33
8.1.80.0080.00017.44
8.1.70.0030.00317.27
8.1.60.0090.00017.49
8.1.50.0030.00617.46
8.1.40.0060.00317.42
8.1.30.0040.00417.38
8.1.20.0030.00617.57
8.1.10.0070.00017.51
8.1.00.0040.00417.41
8.0.300.0080.00020.85
8.0.290.0000.00717.17
8.0.280.0000.00718.42
8.0.270.0030.00317.30
8.0.260.0000.00617.09
8.0.250.0070.00016.92
8.0.240.0050.00316.82
8.0.230.0030.00316.93
8.0.220.0000.00716.86
8.0.210.0030.00316.74
8.0.200.0000.00616.83
8.0.190.0070.00016.88
8.0.180.0030.00316.84
8.0.170.0040.00416.81
8.0.160.0040.00416.78
8.0.150.0050.00216.83
8.0.140.0030.00616.81
8.0.130.0000.00513.17
8.0.120.0030.00616.81
8.0.110.0000.00716.88
8.0.100.0070.00016.71
8.0.90.0070.00016.74
8.0.80.0070.00716.71
8.0.70.0050.00316.86
8.0.60.0040.00416.70
8.0.50.0040.00416.70
8.0.30.0140.00816.98
8.0.20.0120.00617.40
8.0.10.0040.00417.01
8.0.00.0170.00616.70
7.4.330.0060.00015.09
7.4.320.0000.00916.53
7.4.300.0000.00716.32
7.4.290.0040.00416.41
7.4.280.0040.00416.31
7.4.270.0040.00316.53
7.4.260.0030.00316.50
7.4.250.0040.00416.48
7.4.240.0020.00516.42
7.4.230.0000.00716.43
7.4.220.0080.00816.46
7.4.210.0050.00916.47
7.4.200.0000.00716.55
7.4.190.0050.00216.65
7.4.160.0080.00816.58
7.4.150.0080.00817.40
7.4.140.0080.01117.86
7.4.130.0130.00516.54
7.4.120.0090.00816.44
7.4.110.0100.00716.57
7.4.100.0030.01316.46
7.4.90.0100.00716.41
7.4.80.0140.00319.39
7.4.70.0030.01316.34
7.4.60.0110.00616.29
7.4.50.0030.00516.30
7.4.40.0070.01016.52
7.4.30.0090.00616.36
7.4.00.0070.01015.10
7.3.330.0030.00313.17
7.3.320.0030.00313.06
7.3.310.0060.00316.20
7.3.300.0000.00616.04
7.3.290.0050.01416.18
7.3.280.0100.01116.16
7.3.270.0070.01017.40
7.3.260.0100.00716.35
7.3.250.0030.01316.35
7.3.240.0140.00716.35
7.3.230.0100.00616.39
7.3.210.0100.01016.35
7.3.200.0130.01019.39
7.3.190.0130.00916.22
7.3.180.0030.01716.41
7.3.170.0120.00316.55
7.3.160.0060.01016.30
7.3.120.0090.00614.44
7.2.330.0120.00916.23
7.2.320.0160.00316.55
7.2.310.0070.01116.71
7.2.300.0070.01016.61
7.2.290.0070.01016.59
7.2.80.0030.01016.46
7.2.60.0090.00616.84
7.2.00.0000.01419.21
7.1.200.0030.00615.61
7.1.100.0170.00818.38
7.1.70.0070.00317.23
7.1.60.0070.01619.46
7.1.50.0090.01217.07
7.1.00.0070.07322.40
7.0.200.0030.00716.87
7.0.140.0070.07022.05
7.0.60.0030.04319.90
7.0.50.0100.08017.90
7.0.40.0030.09319.96
7.0.30.0230.06020.09
7.0.20.0230.08720.00
7.0.10.0000.07320.33
7.0.00.0130.03720.04
5.6.280.0000.07721.14
5.6.210.0000.08720.71
5.6.200.0170.06718.15
5.6.190.0130.08020.41
5.6.180.0230.04720.61
5.6.170.0270.07720.52
5.6.160.0070.07320.62
5.6.150.0000.09018.08
5.6.140.0070.08018.09
5.6.130.0030.04318.14
5.6.120.0170.07720.96
5.6.110.0100.08020.98
5.6.100.0070.08321.10
5.6.90.0130.07720.96
5.6.80.0170.06720.46
5.5.350.0170.07020.52
5.5.340.0000.09017.89
5.5.330.0100.04020.23
5.5.320.0000.04320.24
5.5.310.0330.08320.21
5.5.300.0000.04718.01
5.5.290.0070.07317.97
5.5.280.0070.08320.84
5.5.270.0100.08320.85
5.5.260.0130.06020.85
5.5.250.0130.07720.70
5.5.240.0100.06720.18
5.4.450.0700.07319.14
5.4.440.0700.06319.27
5.4.430.0570.06019.27
5.4.420.0500.07019.60
5.4.410.0670.06719.14
5.4.400.0870.05318.89
5.4.390.0200.05319.09
5.4.380.0270.04018.83
5.4.370.0100.05718.63
5.4.360.0130.05018.78
5.4.350.0230.06318.46
5.4.340.0070.06018.50
5.4.320.0030.03812.45
5.4.310.0060.03812.45
5.4.300.0050.03812.45
5.4.290.0060.06012.45
5.4.280.0120.04912.34
5.4.270.0090.03812.35
5.4.260.0100.04412.35
5.4.250.0070.05812.35
5.4.240.0050.04212.35
5.4.230.0070.04612.34
5.4.220.0050.05112.34
5.4.210.0090.04212.34
5.4.200.0090.04012.34
5.4.190.0080.04112.34
5.4.180.0070.04212.33
5.4.170.0080.03712.35
5.4.160.0050.03812.34
5.4.150.0060.04012.34
5.4.140.0060.03712.02
5.4.130.0050.04012.01
5.4.120.0110.03411.97
5.4.110.0070.03611.96
5.4.100.0090.03911.96
5.4.90.0110.03411.96
5.4.80.0090.03411.96
5.4.70.0090.03311.96
5.4.60.0070.03811.96
5.4.50.0060.03711.96
5.4.40.0080.03511.95
5.4.30.0060.04311.95
5.4.20.0090.04211.95
5.4.10.0070.04511.95
5.4.00.0040.03811.43
5.3.290.0040.04112.80
5.3.280.0040.04112.70
5.3.270.0090.03612.73
5.3.260.0090.03812.72
5.3.250.0070.03912.71
5.3.240.0090.03512.72
5.3.230.0100.03512.70
5.3.220.0090.03512.68
5.3.210.0080.03812.68
5.3.200.0130.03112.68
5.3.190.0070.04512.68
5.3.180.0110.03412.68
5.3.170.0070.03812.67
5.3.160.0080.03612.68
5.3.150.0040.04912.67
5.3.140.0210.07112.66
5.3.130.0060.04012.66
5.3.120.0070.03712.66
5.3.110.0070.05412.65
5.3.100.0090.05212.12
5.3.90.0060.04812.08
5.3.80.0110.04812.07
5.3.70.0070.03912.08
5.3.60.0100.04912.06
5.3.50.0070.04612.00
5.3.40.0110.03912.00
5.3.30.0060.03911.94
5.3.20.0200.04211.72
5.3.10.0050.03511.69
5.3.00.0050.04311.67
5.2.170.0070.0439.18
5.2.160.0090.0399.18
5.2.150.0060.0449.18
5.2.140.0060.0439.17
5.2.130.0070.0279.14
5.2.120.0030.0329.14
5.2.110.0050.0299.14
5.2.100.0060.0279.14
5.2.90.0060.0289.14
5.2.80.0090.0389.13
5.2.70.0040.0319.13
5.2.60.0090.0389.08
5.2.50.0050.0319.05
5.2.40.0080.0409.03
5.2.30.0070.0389.01
5.2.20.0090.0278.99
5.2.10.0100.0258.93
5.2.00.0050.0308.79
5.1.60.0020.0268.07
5.1.50.0050.0298.07
5.1.40.0060.0278.05
5.1.30.0050.0368.41
5.1.20.0060.0308.42
5.1.10.0040.0318.15
5.1.00.0080.0308.15
5.0.50.0050.0236.63
5.0.40.0020.0246.49
5.0.30.0050.0346.30
5.0.20.0020.0216.27
5.0.10.0020.0226.24
5.0.00.0050.0296.24
4.4.90.0040.0164.78
4.4.80.0040.0214.76
4.4.70.0050.0204.76
4.4.60.0070.0184.76
4.4.50.0060.0284.77
4.4.40.0040.0344.71
4.4.30.0070.0144.76
4.4.20.0070.0284.85
4.4.10.0030.0234.84
4.4.00.0040.0264.76
4.3.110.0050.0164.67
4.3.100.0040.0184.66
4.3.90.0030.0184.64
4.3.80.0040.0244.58
4.3.70.0010.0164.63
4.3.60.0030.0154.63
4.3.50.0030.0154.63
4.3.40.0030.0244.53
4.3.30.0030.0173.29
4.3.20.0020.0163.26
4.3.10.0030.0153.23
4.3.00.0070.0208.65

preferences:
41.09 ms | 401 KiB | 5 Q