3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [10,20,30,40,50,60]; $k = end($a); $k = prev($a); var_dump($k); unset($a[$key]); var_dump($a);

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)
8.3.60.0140.00716.62
8.3.50.0140.00421.93
8.3.40.0110.00318.88
8.3.30.0070.00718.95
8.3.20.0040.00420.21
8.3.10.0000.00823.63
8.3.00.0080.00018.93
8.2.180.0120.00316.75
8.2.170.0120.00322.96
8.2.160.0040.01120.32
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0000.00826.16
8.2.120.0060.00320.91
8.2.110.0070.00319.38
8.2.100.0090.00317.97
8.2.90.0040.00419.05
8.2.80.0060.00317.97
8.2.70.0040.00417.72
8.2.60.0130.00017.93
8.2.50.0030.00618.07
8.2.40.0000.00921.10
8.2.30.0070.00018.28
8.2.20.0030.00617.61
8.2.10.0000.00718.16
8.2.00.0060.00317.73
8.1.280.0100.01325.92
8.1.270.0000.00823.91
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00622.19
8.1.230.0030.00720.73
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0030.00617.23
8.1.190.0040.00417.11
8.1.180.0000.00818.10
8.1.170.0040.00418.46
8.1.160.0040.00421.97
8.1.150.0070.00018.63
8.1.140.0000.00717.25
8.1.130.0030.00317.81
8.1.120.0000.00717.29
8.1.110.0040.00417.39
8.1.100.0040.00417.29
8.1.90.0040.00417.39
8.1.80.0020.00517.43
8.1.70.0000.00717.34
8.1.60.0040.00417.50
8.1.50.0080.00017.46
8.1.40.0030.00617.47
8.1.30.0000.00817.46
8.1.20.0080.00017.54
8.1.10.0040.00417.49
8.1.00.0030.00517.40
8.0.300.0040.00418.77
8.0.290.0020.00516.75
8.0.280.0070.00018.36
8.0.270.0070.00017.14
8.0.260.0030.00317.14
8.0.250.0040.00416.94
8.0.240.0030.00316.82
8.0.230.0040.00416.81
8.0.220.0030.00316.89
8.0.210.0000.00716.85
8.0.200.0060.00016.83
8.0.190.0000.00716.80
8.0.180.0000.00716.91
8.0.170.0080.00016.86
8.0.160.0030.00316.83
8.0.150.0000.00816.76
8.0.140.0050.00316.86
8.0.130.0000.00813.24
8.0.120.0040.00416.73
8.0.110.0000.00716.89
8.0.100.0040.00416.89
8.0.90.0000.00816.91
8.0.80.0040.01116.85
8.0.70.0040.00416.66
8.0.60.0000.00716.79
8.0.50.0040.00416.92
8.0.30.0080.01116.92
8.0.20.0160.00317.40
8.0.10.0000.00716.96
8.0.00.0070.01316.76
7.4.330.0040.00415.00
7.4.320.0060.00016.47
7.4.300.0050.00216.51
7.4.290.0040.00816.51
7.4.280.0040.00416.59
7.4.270.0030.00316.49
7.4.260.0030.00316.52
7.4.250.0000.00816.58
7.4.240.0050.00216.44
7.4.230.0030.00316.68
7.4.220.0150.00916.58
7.4.210.0090.00716.55
7.4.200.0000.00716.50
7.4.190.0030.00316.73
7.4.160.0050.01016.37
7.4.150.0130.00717.40
7.4.140.0110.00617.86
7.4.130.0100.00716.43
7.4.120.0090.00916.42
7.4.110.0090.00916.55
7.4.100.0190.00416.49
7.4.90.0060.01116.41
7.4.80.0070.01019.39
7.4.70.0030.01316.40
7.4.60.0070.01316.35
7.4.50.0030.00316.31
7.4.40.0030.01316.44
7.4.30.0100.00716.46
7.4.00.0070.01014.68
7.3.330.0000.00513.00
7.3.320.0020.00213.19
7.3.310.0070.00016.02
7.3.300.0030.00316.29
7.3.290.0060.00916.32
7.3.280.0090.00716.27
7.3.270.0030.01417.40
7.3.260.0110.00916.23
7.3.250.0090.00916.32
7.3.240.0080.00916.44
7.3.230.0130.00416.39
7.3.210.0110.00716.37
7.3.200.0120.00919.39
7.3.190.0010.00616.39
7.3.180.0100.00716.21
7.3.170.0100.00616.27
7.3.160.0080.00816.51
7.3.120.0100.00714.89
7.2.330.0130.00416.70
7.2.320.0090.01216.55
7.2.310.0130.01016.43
7.2.300.0130.00616.30
7.2.290.0080.00816.62
7.2.00.0060.00619.21
7.1.100.0050.00518.05
7.1.70.0030.00316.82
7.1.60.0100.01419.46
7.1.50.0060.00616.96
7.1.00.0070.07322.57
7.0.200.0000.00816.63
7.0.140.0070.07022.17
7.0.60.0000.08720.02
7.0.50.0130.07717.81
7.0.40.0070.05320.30
7.0.30.0500.05720.09
7.0.20.0300.07720.04
7.0.10.0030.08720.29
7.0.00.0070.09020.19
5.6.280.0070.07021.06
5.6.210.0000.06720.68
5.6.200.0070.08018.11
5.6.190.0030.04320.46
5.6.180.3730.03720.39
5.6.170.0130.04720.33
5.6.160.0100.04020.44
5.6.150.0100.06318.17
5.6.140.0030.04318.14
5.6.130.0130.05318.18
5.6.120.0100.07321.09
5.6.110.0100.03321.00
5.6.100.0030.06020.99
5.6.90.0070.06020.95
5.6.80.0100.07320.41
5.6.70.3530.04020.49
5.5.350.0270.07720.36
5.5.340.0000.04017.98
5.5.330.0030.09320.36
5.5.320.0430.07320.17
5.5.310.0330.07020.20
5.5.300.0070.03717.89
5.5.290.0130.07717.96
5.5.280.0030.05020.76
5.5.270.0100.05720.72
5.5.260.0130.05720.75
5.5.250.0000.08720.66
5.5.240.0130.04320.25
5.4.450.0700.06319.58
5.4.440.0930.05019.46
5.4.430.0300.05719.44
5.4.420.0800.06319.27
5.4.410.0870.05319.00
5.4.400.0500.05019.16
5.4.390.0730.05019.14
5.4.380.0330.05318.72
5.4.370.0230.06018.61
5.4.360.0170.06318.64
5.4.350.0300.06018.50
5.4.340.0430.05718.61
5.4.320.0040.03812.45
5.4.310.0040.04012.45
5.4.300.0080.05412.46
5.4.290.0090.05712.45
5.4.280.0080.05312.35
5.4.270.0080.05212.34
5.4.260.0090.05212.35
5.4.250.0080.05212.34
5.4.240.0070.05312.34
5.4.230.0110.05612.34
5.4.220.0100.04912.34
5.4.210.0060.05512.34
5.4.200.0080.05412.34
5.4.190.0060.05512.34
5.4.180.0090.05312.33
5.4.170.0110.05112.34
5.4.160.0090.05012.34
5.4.150.0110.04812.34
5.4.140.0150.04712.02
5.4.130.0100.04812.01
5.4.120.0130.04711.96
5.4.110.0120.04811.96
5.4.100.0090.04811.96
5.4.90.0110.05111.97
5.4.80.0080.05411.96
5.4.70.0130.04711.96
5.4.60.0140.04611.96
5.4.50.0110.04911.96
5.4.40.0080.05011.95
5.4.30.0060.05011.95
5.4.20.0100.04811.95
5.4.10.0080.04911.95
5.4.00.0130.04511.43
5.3.290.0070.03912.80
5.3.280.0110.04812.71
5.3.270.0110.05412.73
5.3.260.0120.05112.72
5.3.250.0090.05312.72
5.3.240.0090.04112.72
5.3.230.0070.03812.71
5.3.220.0060.03812.68
5.3.210.0040.04112.68
5.3.200.0090.03412.68
5.3.190.0070.03712.68
5.3.180.0070.03812.68
5.3.170.0070.04112.67
5.3.160.0080.04212.68
5.3.150.0030.04212.68
5.3.140.0110.03312.66
5.3.130.0070.04312.66
5.3.120.0110.04612.66
5.3.110.0060.04912.66
5.3.100.0060.03612.12
5.3.90.0080.03512.09
5.3.80.0100.04412.07
5.3.70.0050.04712.07
5.3.60.0090.05012.07
5.3.50.0060.05012.00
5.3.40.0070.04712.00
5.3.30.0080.04911.95
5.3.20.0110.04511.72
5.3.10.0050.05211.70
5.3.00.0120.04411.68
5.2.170.0110.0379.18
5.2.160.0060.0399.18
5.2.150.0080.0399.18
5.2.140.0100.0379.18
5.2.130.0050.0399.14
5.2.120.0080.0269.14
5.2.110.0050.0339.15
5.2.100.0120.0249.14
5.2.90.0120.0239.14
5.2.80.0040.0329.14
5.2.70.0060.0319.14
5.2.60.0060.0309.09
5.2.50.0080.0289.05
5.2.40.0040.0339.03
5.2.30.0040.0399.01
5.2.20.0060.0349.00
5.2.10.0050.0288.93
5.2.00.0050.0318.79
5.1.60.0030.0268.07
5.1.50.0060.0238.06
5.1.40.0030.0288.04
5.1.30.0040.0318.39
5.1.20.0090.0238.41
5.1.10.0050.0268.14
5.1.00.0050.0258.14
5.0.50.0020.0216.62
5.0.40.0060.0176.47
5.0.30.0030.0316.29
5.0.20.0020.0216.27
5.0.10.0050.0186.24
5.0.00.0020.0326.23
4.4.90.0030.0164.78
4.4.80.0040.0154.76
4.4.70.0040.0164.76
4.4.60.0030.0164.75
4.4.50.0040.0144.77
4.4.40.0030.0254.71
4.4.30.0040.0144.76
4.4.20.0040.0144.85
4.4.10.0020.0164.85
4.4.00.0050.0224.76
4.3.110.0020.0184.67
4.3.100.0040.0154.66
4.3.90.0030.0154.64
4.3.80.0010.0264.59
4.3.70.0040.0134.63
4.3.60.0030.0144.63
4.3.50.0030.0154.63
4.3.40.0010.0254.54
4.3.30.0030.0143.28
4.3.20.0020.0153.26
4.3.10.0020.0153.22
4.3.00.0100.0237.26

preferences:
38.29 ms | 400 KiB | 5 Q