3v4l.org

run code in 300+ PHP versions simultaneously
<?php $attachments = array(1=>'a',2=>'b',3=>'c'); $id = current(array_flip($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)
8.3.40.0040.01118.67
8.3.30.0030.01019.13
8.3.20.0060.00320.24
8.3.10.0000.00823.70
8.3.00.0080.00319.13
8.2.170.0100.01022.96
8.2.160.0030.01020.32
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0040.00422.13
8.2.110.0090.00022.04
8.2.100.0040.00718.16
8.2.90.0040.00422.29
8.2.80.0030.00618.03
8.2.70.0050.00318.04
8.2.60.0080.00018.03
8.2.50.0000.00818.10
8.2.40.0080.00020.61
8.2.30.0070.00019.20
8.2.20.0000.00817.60
8.2.10.0080.00018.12
8.2.00.0040.00417.61
8.1.270.0070.00023.97
8.1.260.0030.00526.35
8.1.250.0030.00628.09
8.1.240.0080.00022.05
8.1.230.0030.00718.95
8.1.220.0000.00817.79
8.1.210.0050.00318.77
8.1.200.0040.00417.23
8.1.190.0000.00917.10
8.1.180.0090.00018.10
8.1.170.0080.00018.65
8.1.160.0050.00218.70
8.1.150.0050.00318.80
8.1.140.0050.00317.34
8.1.130.0000.00818.93
8.1.120.0000.00717.38
8.1.110.0000.00717.29
8.1.100.0070.00017.45
8.1.90.0000.00817.30
8.1.80.0040.00417.32
8.1.70.0070.00017.37
8.1.60.0040.00417.57
8.1.50.0000.00817.41
8.1.40.0040.00417.36
8.1.30.0000.00917.37
8.1.20.0070.00017.45
8.1.10.0040.00417.49
8.1.00.0000.00717.46
8.0.300.0000.00819.65
8.0.290.0000.00716.75
8.0.280.0000.00718.48
8.0.270.0070.00016.74
8.0.260.0030.00317.29
8.0.250.0030.00316.83
8.0.240.0050.00216.95
8.0.230.0030.00316.79
8.0.220.0000.00716.79
8.0.210.0030.00316.84
8.0.200.0000.00616.90
8.0.190.0030.00616.76
8.0.180.0000.00716.88
8.0.170.0050.00216.86
8.0.160.0030.00316.75
8.0.150.0000.00816.79
8.0.140.0030.00516.84
8.0.130.0030.00313.26
8.0.120.0000.00816.67
8.0.110.0000.00716.71
8.0.100.0000.00716.66
8.0.90.0000.00716.83
8.0.80.0060.00916.77
8.0.70.0030.00516.87
8.0.60.0030.00616.89
8.0.50.0050.00216.70
8.0.30.0120.00617.01
8.0.20.0100.00817.40
8.0.10.0000.00817.00
8.0.00.0080.00916.86
7.4.330.0070.00015.00
7.4.320.0070.00416.44
7.4.300.0080.00016.39
7.4.290.0000.00616.36
7.4.280.0040.00416.42
7.4.270.0030.00316.55
7.4.260.0080.00016.36
7.4.250.0000.00816.50
7.4.240.0030.00316.45
7.4.230.0000.00716.34
7.4.220.0030.01416.54
7.4.210.0030.01316.54
7.4.200.0030.00316.61
7.4.190.0030.00316.50
7.4.160.0110.00416.45
7.4.150.0150.00317.40
7.4.140.0070.01417.86
7.4.130.0130.00416.49
7.4.120.0080.00816.45
7.4.110.0090.01316.33
7.4.100.0120.00716.43
7.4.90.0060.01116.32
7.4.80.0060.01319.39
7.4.70.0100.00716.57
7.4.60.0100.01016.29
7.4.50.0030.00516.35
7.4.40.0090.01316.41
7.4.30.0060.00916.52
7.4.00.0040.01115.14
7.3.330.0040.00413.09
7.3.320.0000.00513.04
7.3.310.0050.00216.24
7.3.300.0030.00616.22
7.3.290.0160.00016.17
7.3.280.0090.00916.27
7.3.270.0070.01117.40
7.3.260.0160.00716.45
7.3.250.0090.01116.26
7.3.240.0120.00316.38
7.3.230.0080.00816.39
7.3.210.0130.00316.32
7.3.200.0100.01319.39
7.3.190.0060.01116.38
7.3.180.0090.01016.36
7.3.170.0090.00616.41
7.3.160.0090.01416.41
7.3.120.0090.00614.75
7.2.330.0100.00716.63
7.2.320.0110.01116.63
7.2.310.0090.01216.63
7.2.300.0070.01016.57
7.2.290.0090.00916.49
7.2.60.0000.01416.57
7.2.00.0000.01019.32
7.1.200.0060.00615.47
7.1.100.0050.00517.75
7.1.70.0030.00617.14
7.1.60.0090.01619.46
7.1.50.0130.00617.08
7.1.00.0070.07322.30
7.0.200.0040.00416.75
7.0.140.0070.06722.18
7.0.60.0070.03720.06
7.0.50.0130.04017.90
7.0.40.0100.07320.02
7.0.30.0270.07320.18
7.0.20.0230.05720.20
7.0.10.0100.08720.09
7.0.00.0070.04320.09
5.6.280.0030.07320.88
5.6.210.0130.07320.68
5.6.200.0030.08318.19
5.6.190.0070.09020.50
5.6.180.0300.07720.49
5.6.170.0300.04020.41
5.6.160.0030.06720.37
5.6.150.0030.08018.13
5.6.140.0030.05318.18
5.6.130.0070.08718.12
5.6.120.0100.05021.01
5.6.110.0130.06021.11
5.6.100.0030.04020.98
5.6.90.0100.08020.94
5.6.80.0100.08320.42
5.5.350.0170.04020.40
5.5.340.0070.03717.97
5.5.330.0000.04720.38
5.5.320.0000.04020.41
5.5.310.0330.07720.50
5.5.300.0000.04717.88
5.5.290.0030.08317.91
5.5.280.0030.04320.76
5.5.270.0100.07320.64
5.5.260.0030.06020.79
5.5.250.0070.08320.77
5.5.240.0030.07720.27
5.4.450.0170.07019.61
5.4.440.0100.06019.50
5.4.430.0200.05719.45
5.4.420.0270.06019.45
5.4.410.0230.05319.31
5.4.400.0270.07319.16
5.4.390.0200.06319.14
5.4.380.0130.05318.72
5.4.370.0130.05318.68
5.4.360.0100.05318.61
5.4.350.0200.05018.59
5.4.340.0070.06318.65
5.4.320.0060.05012.45
5.4.310.0050.04112.45
5.4.300.0060.03712.45
5.4.290.0040.06012.45
5.4.280.0110.05212.34
5.4.270.0140.04812.35
5.4.260.0100.05412.34
5.4.250.0190.04712.34
5.4.240.0130.05212.35
5.4.230.0180.05312.34
5.4.220.0150.05612.34
5.4.210.0110.08612.34
5.4.200.0170.05112.34
5.4.190.0100.05112.34
5.4.180.0110.07512.34
5.4.170.0160.04912.35
5.4.160.0170.09812.34
5.4.150.0100.05212.34
5.4.140.0090.05012.02
5.4.130.0070.04912.01
5.4.120.0060.05411.96
5.4.110.0070.05611.96
5.4.100.0100.05211.96
5.4.90.0140.05411.96
5.4.80.0210.04611.96
5.4.70.0220.04311.96
5.4.60.0090.06011.96
5.4.50.0100.05511.96
5.4.40.0120.05211.95
5.4.30.0100.05211.95
5.4.20.0080.05611.95
5.4.10.0140.04811.95
5.4.00.0100.05511.43
5.3.290.0080.03912.80
5.3.280.0110.05612.71
5.3.270.0150.05612.72
5.3.260.0060.06312.72
5.3.250.0060.05212.72
5.3.240.0120.05312.72
5.3.230.0090.05212.71
5.3.220.0090.05612.68
5.3.210.0110.05112.68
5.3.200.0110.04912.68
5.3.190.0110.05512.68
5.3.180.0110.05312.67
5.3.170.0100.05212.67
5.3.160.0130.04712.67
5.3.150.0150.05112.67
5.3.140.0100.05412.66
5.3.130.0080.05712.65
5.3.120.0090.05612.65
5.3.110.0090.05312.66
5.3.100.0060.05212.12
5.3.90.0110.05112.08
5.3.80.0080.05212.08
5.3.70.0130.04712.08
5.3.60.0110.05412.06
5.3.50.0140.04812.00
5.3.40.0110.05012.00
5.3.30.0100.05211.95
5.3.20.0110.05011.72
5.3.10.0080.05211.69
5.3.00.0080.05211.67
5.2.170.0040.0459.18
5.2.160.0090.0429.18
5.2.150.0060.0479.18
5.2.140.0050.0469.17
5.2.130.0060.0439.13
5.2.120.0090.0399.14
5.2.110.0060.0429.14
5.2.100.0080.0409.14
5.2.90.0060.0429.14
5.2.80.0130.0389.13
5.2.70.0120.0399.13
5.2.60.0100.0429.09
5.2.50.0090.0439.06
5.2.40.0110.0389.03
5.2.30.0100.0409.00
5.2.20.0080.0409.00
5.2.10.0040.0418.93
5.2.00.0060.0408.79
5.1.60.0060.0348.07
5.1.50.0040.0368.07
5.1.40.0080.0338.06
5.1.30.0080.0348.40
5.1.20.0120.0358.43
5.1.10.0060.0358.15
5.1.00.0090.0348.15
5.0.50.0070.0256.62
5.0.40.0070.0256.49
5.0.30.0060.0396.30
5.0.20.0040.0246.27
5.0.10.0040.0246.25
5.0.00.0060.0356.24
4.4.90.0040.0224.78
4.4.80.0050.0254.76
4.4.70.0050.0214.75
4.4.60.0040.0254.75
4.4.50.0030.0284.77
4.4.40.0040.0374.71
4.4.30.0050.0234.76
4.4.20.0040.0454.84
4.4.10.0050.0234.85
4.4.00.0030.0344.76
4.3.110.0050.0224.67
4.3.100.0050.0234.66
4.3.90.0030.0234.64
4.3.80.0050.0304.58
4.3.70.0080.0174.63
4.3.60.0050.0194.62
4.3.50.0070.0204.63
4.3.40.0040.0334.54
4.3.30.0070.0183.29
4.3.20.0030.0213.27
4.3.10.0040.0213.23
4.3.00.0030.0308.22

preferences:
50.6 ms | 400 KiB | 5 Q