3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array_fill(0,200000,'a'); $b = array_fill(0,200000,'b'); array_merge($a, $b);

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)
8.3.60.0270.00728.62
8.3.50.0170.00733.20
8.3.40.0200.00730.68
8.3.30.0240.01330.59
8.3.20.0120.00332.51
8.3.10.0110.00434.07
8.3.00.0030.00734.92
8.2.180.0230.00728.75
8.2.170.0170.01031.08
8.2.160.0140.01132.62
8.2.150.0150.00030.84
8.2.140.0060.00932.77
8.2.130.0170.00029.63
8.2.120.0090.00038.30
8.2.110.0060.00637.20
8.2.100.0220.00331.76
8.2.90.0070.00729.88
8.2.80.0100.00630.79
8.2.70.0100.00329.63
8.2.60.0070.00729.63
8.2.50.0100.00329.75
8.2.40.0040.01129.75
8.2.30.0050.00929.75
8.2.20.0120.00429.81
8.2.10.0110.00330.25
8.2.00.0100.00330.20
8.1.280.0140.01744.15
8.1.270.0090.00637.91
8.1.260.0070.00736.18
8.1.250.0120.00036.23
8.1.240.0100.01329.48
8.1.230.0160.00331.11
8.1.220.0130.00029.88
8.1.210.0100.00329.48
8.1.200.0080.00829.48
8.1.190.0100.00331.20
8.1.180.0100.00329.35
8.1.170.0100.00329.60
8.1.160.0060.00630.90
8.1.150.0030.00930.87
8.1.140.0070.00730.90
8.1.130.0060.00629.66
8.1.120.0130.00629.60
8.1.110.0000.01229.58
8.1.100.0120.00029.54
8.1.90.0060.00629.46
8.1.80.0080.00429.59
8.1.70.0060.00629.50
8.1.60.0070.00729.72
8.1.50.0070.00729.68
8.1.40.0040.00929.64
8.1.30.0070.00729.60
8.1.20.0030.01029.70
8.1.10.0090.01241.61
8.1.00.0250.00341.68
8.0.300.0220.00642.96
8.0.290.0160.01041.00
8.0.280.0140.00442.00
8.0.270.0110.00742.00
8.0.260.0130.00741.33
8.0.250.0090.00941.00
8.0.240.0110.00740.97
8.0.230.0110.00740.96
8.0.220.0150.00441.00
8.0.210.0120.00640.95
8.0.200.0150.00840.94
8.0.190.0170.00440.92
8.0.180.0070.01141.05
8.0.170.0100.01040.99
8.0.160.0150.00440.99
8.0.150.0150.00440.96
8.0.140.0260.00040.95
8.0.130.0130.00737.41
8.0.120.0110.00840.81
8.0.110.0090.00940.85
8.0.100.0110.00740.95
8.0.90.0160.00341.02
8.0.80.0290.01840.89
8.0.70.0100.01040.95
8.0.60.0030.01640.90
8.0.50.0160.00340.93
8.0.30.0320.01441.16
8.0.20.0430.02241.02
8.0.10.0100.01040.87
8.0.00.0310.02340.85
7.4.330.0110.00442.90
7.4.320.0150.00440.53
7.4.300.0060.00940.48
7.4.290.0150.00340.44
7.4.280.0070.01140.68
7.4.270.0060.01240.49
7.4.260.0210.00740.57
7.4.250.0060.01340.43
7.4.240.0140.00440.55
7.4.230.0060.01240.41
7.4.220.0310.02240.66
7.4.210.0210.01740.63
7.4.200.0150.00440.57
7.4.160.0340.01040.68
7.4.150.0260.02340.45
7.4.140.0370.01840.56
7.4.130.0330.01640.63
7.4.120.0280.01840.50
7.4.110.0330.02740.48
7.4.100.0260.01940.54
7.4.90.0300.01340.43
7.4.80.0300.02040.75
7.4.70.0420.01340.74
7.4.60.0320.02240.37
7.4.50.0280.00340.31
7.4.40.0320.01340.63
7.4.30.0360.01040.57
7.4.10.0170.02139.05
7.4.00.0200.01238.97
7.3.330.0130.00637.21
7.3.320.0150.00637.12
7.3.310.0080.00840.18
7.3.300.0070.01140.30
7.3.290.0150.00440.20
7.3.280.0170.02540.30
7.3.270.0470.02240.21
7.3.260.0160.02540.32
7.3.250.0260.02040.40
7.3.240.0340.01240.41
7.3.230.0340.01440.33
7.3.210.0230.02040.27
7.3.200.0330.01040.58
7.3.190.0200.02440.23
7.3.180.0260.01640.68
7.3.170.0450.01240.52
7.3.160.0290.01440.32
7.3.130.0170.02439.12
7.3.120.0160.01338.78
7.3.110.0200.02038.86
7.3.100.0170.01039.04
7.3.90.0180.01939.00
7.3.80.0170.01738.92
7.3.70.0180.01139.04
7.3.60.0130.01638.95
7.3.50.0130.01338.87
7.3.40.0070.02238.76
7.3.30.0210.00738.91
7.3.20.0180.00646.26
7.3.10.0130.00746.14
7.3.00.0150.00646.56
7.2.330.0350.01640.73
7.2.320.0330.02640.78
7.2.310.0300.01640.40
7.2.300.0240.01740.55
7.2.290.0290.02340.66
7.2.260.0220.01339.27
7.2.250.0140.02139.18
7.2.240.0130.01739.18
7.2.230.0120.02039.13
7.2.220.0070.02538.92
7.2.210.0220.00939.29
7.2.200.0100.02038.81
7.2.190.0140.01739.00
7.2.180.0160.01339.01
7.2.170.0200.01338.96
7.2.160.0200.01339.06
7.2.150.0060.01246.59
7.2.140.0100.01646.61
7.2.130.0100.01446.73
7.2.120.0110.01146.46
7.2.110.0130.01046.35
7.2.100.0040.01846.84
7.2.90.0090.00946.60
7.2.80.0130.00946.54
7.2.70.0100.01046.55
7.2.60.0330.01146.63
7.2.50.0160.01046.61
7.2.40.0070.01746.77
7.2.30.0090.01246.81
7.2.20.0110.01446.88
7.2.10.0030.02346.62
7.2.00.0050.01547.97
7.1.330.0100.01447.48
7.1.320.0000.02647.64
7.1.310.0090.01547.81
7.1.300.0030.02447.59
7.1.290.0170.01747.30
7.1.280.0170.01047.62
7.1.270.0130.01947.57
7.1.260.0140.01047.46
7.1.250.0160.01347.79
7.1.240.0040.01847.67
7.1.230.0000.02647.65
7.1.220.0180.01247.59
7.1.210.0100.01647.75
7.1.200.0330.00847.59
7.1.190.0090.01547.57
7.1.180.0040.02547.54
7.1.170.0150.01247.39
7.1.160.0150.00947.60
7.1.150.0120.00947.77
7.1.140.0130.00747.65
7.1.130.0110.01147.75
7.1.120.0090.01547.56
7.1.110.0100.01747.28
7.1.100.3300.01546.99
7.1.90.0150.00947.36
7.1.80.0030.01847.38
7.1.70.0100.01548.37
7.1.60.0170.02148.40
7.1.50.0170.01648.15
7.1.40.0120.01247.81
7.1.30.0100.01747.40
7.1.20.0140.01447.79
7.1.10.0150.01247.38
7.1.00.0140.04850.98
7.0.330.0060.01649.11
7.0.320.0070.02049.43
7.0.310.0130.01349.41
7.0.300.0130.02049.14
7.0.290.0100.01349.32
7.0.280.0070.02349.20
7.0.270.0130.01049.28
7.0.260.0140.01449.23
7.0.250.0090.01649.30
7.0.240.0070.02149.45
7.0.230.0100.01449.45
7.0.220.0110.01149.32
7.0.210.0130.01749.30
7.0.200.0130.01550.06
7.0.190.0130.01349.46
7.0.180.0030.02149.28
7.0.170.0110.01149.40
7.0.160.0100.02449.36
7.0.150.0180.01149.29
7.0.140.0070.01349.55
7.0.130.0100.02348.99
7.0.120.0000.02549.03
7.0.110.0120.00949.21
7.0.100.0130.01349.42
7.0.90.0030.02749.40
7.0.80.0030.02349.20
7.0.70.0070.01749.49
7.0.60.0100.04548.73
7.0.50.0120.05747.58
7.0.40.0130.05647.78
7.0.30.0550.05647.55
7.0.20.0430.06247.72
7.0.10.0100.06147.71
7.0.00.0120.04847.63
5.6.400.0370.03376.57
5.6.390.0330.03676.74
5.6.380.0420.02976.81
5.6.370.0240.04576.64
5.6.360.0270.04776.73
5.6.350.0340.03476.68
5.6.340.0260.04376.75
5.6.330.0380.03176.30
5.6.320.0270.04176.51
5.6.310.0350.03576.63
5.6.300.0260.04077.00
5.6.290.0230.04676.61
5.6.280.0330.06380.14
5.6.270.0410.02776.61
5.6.260.0230.04476.44
5.6.250.0320.03676.50
5.6.240.0240.05076.81
5.6.230.0160.04976.36
5.6.220.0370.03776.97
5.6.210.0330.07479.81
5.6.200.0300.07178.52
5.6.190.0250.09979.81
5.6.180.0270.06079.61
5.6.170.0340.06079.63
5.6.160.0390.04779.60
5.6.150.0310.07378.53
5.6.140.0360.07878.58
5.6.130.0310.07978.54
5.6.120.0350.07079.97
5.6.110.0230.05280.08
5.6.100.0260.07980.02
5.6.90.0310.08180.03
5.6.80.0380.06779.72
5.6.70.0270.03776.44
5.6.60.0310.03776.65
5.6.50.0560.02076.74
5.6.40.0390.03976.23
5.6.30.0410.02476.42
5.6.20.0370.04076.63
5.6.10.0340.03076.80
5.6.00.0400.02376.46
5.5.380.0230.05976.41
5.5.370.0320.04976.40
5.5.360.0290.04276.34
5.5.350.0430.07679.46
5.5.340.0300.06078.31
5.5.330.0330.07179.34
5.5.320.0360.06479.56
5.5.310.0300.06179.49
5.5.300.0300.07678.37
5.5.290.0250.08078.39
5.5.280.0320.06779.94
5.5.270.0290.07979.78
5.5.260.0360.04979.76
5.5.250.0130.06879.52
5.5.240.0360.05279.59
5.5.230.0420.03476.30
5.5.220.0390.03076.54
5.5.210.0210.05576.12
5.5.200.0260.04876.23
5.5.190.0270.04176.38
5.5.180.0280.04476.34
5.5.170.0510.03175.93
5.5.160.0400.04476.29
5.5.150.0430.04376.20
5.5.140.0350.03576.29
5.5.130.0280.04676.57
5.5.120.0370.05176.64
5.5.110.0170.07076.39
5.5.100.0390.03376.54
5.5.90.0400.02476.37
5.5.80.0300.04076.47
5.5.70.0260.03976.42
5.5.60.0130.06576.18
5.5.50.0370.03078.62
5.5.40.0260.04378.79
5.5.30.0300.04478.61
5.5.20.0310.03878.63
5.5.10.0480.03478.66
5.5.00.0330.03778.62

preferences:
64.11 ms | 401 KiB | 5 Q