3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'foo'; $b = 'bar'; $array = [&$a, $b]; var_dump($array); //$newArray = array_map(function($item){ return $item; }, $array); foreach ($array as &$item) { $newArray[] = $item; } unset($item); var_dump($newArray);

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)
8.3.70.0140.00718.55
8.3.60.0170.00318.43
8.3.50.0090.01121.01
8.3.40.0150.00318.79
8.3.30.0100.00719.21
8.3.20.0080.00020.34
8.3.10.0040.00422.13
8.3.00.0050.00322.29
8.2.190.0070.00716.58
8.2.180.0000.01516.63
8.2.170.0070.01022.96
8.2.160.0080.00620.47
8.2.150.0030.00524.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0050.00320.63
8.2.110.0090.00020.39
8.2.100.0070.00419.21
8.2.90.0030.00519.17
8.2.80.0000.00818.03
8.2.70.0040.00817.50
8.2.60.0000.00818.04
8.2.50.0070.00318.07
8.2.40.0000.00718.28
8.2.30.0040.00418.05
8.2.20.0000.00717.75
8.2.10.0050.00217.68
8.2.00.0040.00417.81
8.1.280.0110.00625.92
8.1.270.0120.00320.43
8.1.260.0060.00926.35
8.1.250.0060.00328.09
8.1.240.0090.00023.82
8.1.230.0030.00719.12
8.1.220.0050.00317.79
8.1.210.0040.00418.77
8.1.200.0090.00017.36
8.1.190.0050.00317.54
8.1.180.0000.00718.68
8.1.170.0080.00018.32
8.1.160.0040.00422.14
8.1.150.0050.00318.58
8.1.140.0040.00417.48
8.1.130.0070.00017.73
8.1.120.0000.00717.51
8.1.110.0050.00317.51
8.1.100.0040.00417.45
8.1.90.0000.00717.38
8.1.80.0030.00317.29
8.1.70.0070.00017.36
8.1.60.0060.00317.56
8.1.50.0050.00317.41
8.1.40.0000.00817.45
8.1.30.0000.00917.61
8.1.20.0000.00817.57
8.1.10.0030.00617.48
8.1.00.0040.00417.46
8.0.300.0000.00718.77
8.0.290.0000.00717.18
8.0.280.0000.00718.45
8.0.270.0030.00317.31
8.0.260.0060.00316.82
8.0.250.0000.00717.00
8.0.240.0040.00417.01
8.0.230.0070.00016.96
8.0.220.0070.00016.79
8.0.210.0040.00416.91
8.0.200.0000.00616.96
8.0.190.0030.00616.94
8.0.180.0030.00616.88
8.0.170.0070.00016.82
8.0.160.0040.00416.88
8.0.150.0000.01116.75
8.0.140.0000.00716.75
8.0.130.0030.00313.33
8.0.120.0050.00316.84
8.0.110.0000.00716.82
8.0.100.0060.00316.76
8.0.90.0040.00416.88
8.0.80.0060.01016.94
8.0.70.0070.00016.86
8.0.60.0000.00716.75
8.0.50.0030.00516.82
8.0.30.0170.00217.16
8.0.20.0140.00717.40
8.0.10.0030.00517.07
8.0.00.0130.00716.72
7.4.330.0050.00215.00
7.4.320.0000.00616.64
7.4.300.0060.00016.41
7.4.290.0030.00316.50
7.4.280.0000.00716.51
7.4.270.0030.00316.50
7.4.260.0000.00716.60
7.4.250.0040.00416.58
7.4.240.0050.00216.55
7.4.230.0060.00016.25
7.4.220.0160.00616.46
7.4.210.0070.00916.49
7.4.200.0040.00416.45
7.4.190.0030.00316.71
7.4.160.0130.00316.58
7.4.150.0110.00617.40
7.4.140.0120.00717.86
7.4.130.0160.00216.56
7.4.120.0110.00916.45
7.4.110.0090.00916.44
7.4.100.0160.00616.66
7.4.90.0090.00816.55
7.4.80.0090.00919.39
7.4.70.0100.00716.47
7.4.60.0150.00616.74
7.4.50.0030.00316.45
7.4.40.0030.01122.77
7.4.30.0050.01016.43
7.4.00.0060.00615.04
7.3.330.0000.00513.02
7.3.320.0000.00513.01
7.3.310.0060.00016.36
7.3.300.0030.00316.26
7.3.290.0070.01316.30
7.3.280.0030.01116.28
7.3.270.0120.00617.40
7.3.260.0150.00916.53
7.3.250.0110.00616.36
7.3.240.0080.00816.38
7.3.230.0080.00816.54
7.3.210.0120.00616.21
7.3.200.0040.01219.39
7.3.190.0130.00416.27
7.3.180.0120.00916.61
7.3.170.0050.01216.32
7.3.160.0040.01116.23
7.3.120.0070.01014.96
7.2.330.0130.00316.66
7.2.320.0160.00616.55
7.2.310.0030.01416.43
7.2.300.0160.00616.61
7.2.290.0080.00816.64
7.2.00.0040.00719.19
7.1.100.0060.00617.86
7.1.70.0000.00716.92
7.1.60.0140.01019.82
7.1.50.0040.01416.96
7.1.00.0030.05322.33
7.0.200.0000.01016.80
7.0.140.0070.07022.00
7.0.60.0070.08019.82
7.0.50.0070.03717.88
7.0.40.0100.08320.20
7.0.30.0330.07020.20
7.0.20.0200.04020.16
7.0.10.0200.04720.33
7.0.00.0100.08020.33
5.6.280.0070.07021.12
5.6.210.0230.06320.74
5.6.200.0000.04718.13
5.6.190.0070.04720.34
5.6.180.3200.04020.36
5.6.170.0230.07020.51
5.6.160.0030.08720.41
5.6.150.0070.08018.22
5.6.140.0000.05018.11
5.6.130.0100.08018.16
5.6.120.0000.08720.99
5.6.110.0100.05720.98
5.6.100.0030.06721.00
5.6.90.0030.06321.13
5.6.80.0100.07720.52
5.6.70.0230.07720.50
5.5.350.0170.05720.32
5.5.340.0130.08017.96
5.5.330.0070.07720.12
5.5.320.0370.06720.34
5.5.310.0330.08020.32
5.5.300.0030.05317.92
5.5.290.0130.07317.98
5.5.280.0070.05020.76
5.5.270.0130.08020.86
5.5.260.0100.03720.64
5.5.250.0000.04320.59
5.5.240.0070.03320.15
5.4.450.0930.05719.49
5.4.440.0830.07319.50
5.4.430.0730.06319.51
5.4.420.0730.05019.40
5.4.410.0770.04719.36
5.4.400.0270.06318.77
5.4.390.0330.05318.63
5.4.380.0300.05318.54
5.4.370.0070.05718.59
5.4.360.0270.04018.70
5.4.350.0030.03911.97
5.4.340.0070.03511.97
5.4.320.0040.03712.46
5.4.310.0090.04512.45
5.4.300.0050.03612.45
5.4.290.0060.04312.45
5.4.280.0040.03612.35
5.4.270.0080.03712.35
5.4.260.0040.03812.35
5.4.250.0130.04718.58
5.4.240.0100.05318.82
5.4.230.0030.06018.82
5.4.220.0130.05018.94
5.4.210.0100.07018.69
5.4.200.0100.05318.64
5.4.190.0100.07318.86
5.4.180.0030.06718.91
5.4.170.0000.05718.83
5.4.160.0000.05718.86
5.4.150.0030.05718.63
5.4.140.0000.05716.49
5.4.130.0070.04716.28
5.4.120.0130.04716.25
5.4.110.0070.05016.14
5.4.100.0000.07716.37
5.4.90.0100.04716.35
5.4.80.0100.05016.19
5.4.70.0100.04716.28
5.4.60.0030.07316.13
5.4.50.0130.04716.25
5.4.40.0030.05716.23
5.4.30.0030.05316.38
5.4.20.0130.05316.35
5.4.10.0070.05016.34
5.4.00.0100.04715.92
5.3.290.0090.03712.80
5.3.280.0070.05014.38
5.3.270.0070.05314.70
5.3.260.0030.05314.48
5.3.250.0070.05714.52
5.3.240.0070.05314.70
5.3.230.0000.08014.60
5.3.220.0030.05314.41
5.3.210.0030.05714.46
5.3.200.0070.06714.60
5.3.190.0030.07714.61
5.3.180.0100.05014.58
5.3.170.0130.05314.58
5.3.160.0000.05714.67
5.3.150.0000.05714.66
5.3.140.0030.05314.65
5.3.130.0100.06314.32
5.3.120.0130.05014.56
5.3.110.0030.08014.70
5.3.100.0200.06014.05
5.3.90.0030.05314.06
5.3.80.0070.05014.12
5.3.70.0130.05714.04
5.3.60.0100.05714.02
5.3.50.0100.05313.99
5.3.40.0170.05713.96
5.3.30.0170.05313.93
5.3.20.0100.05013.68
5.3.10.0030.05013.54
5.3.00.0330.04313.64
5.2.170.0030.06011.14
5.2.160.0100.04011.05
5.2.150.0000.04311.07
5.2.140.0000.04711.15
5.2.130.0000.06711.09
5.2.120.0130.04711.25
5.2.110.0000.06011.09
5.2.100.0170.04311.03
5.2.90.0100.04311.19
5.2.80.0130.03311.09
5.2.70.0030.06010.99
5.2.60.0070.04011.16
5.2.50.0070.06310.94
5.2.40.0030.05310.91
5.2.30.0130.05311.08
5.2.20.0170.03010.84
5.2.10.0100.04310.76
5.2.00.0000.04710.71
5.1.60.0000.0439.84
5.1.50.0030.0379.93
5.1.40.0130.02310.04
5.1.30.0070.03710.55
5.1.20.0130.02710.43
5.1.10.0070.03310.10
5.1.00.0000.03710.11
5.0.50.0000.0308.61
5.0.40.0070.0278.47
5.0.30.0130.0508.18
5.0.20.0070.0338.11
5.0.10.0030.0308.20
5.0.00.0000.0508.24
4.4.90.0000.0335.80
4.4.80.0000.0335.77
4.4.70.0030.0305.73
4.4.60.0100.0275.73
4.4.50.0030.0205.78
4.4.40.0030.0405.82
4.4.30.0000.0235.78
4.4.20.0000.0305.89
4.4.10.0030.0205.83
4.4.00.0000.0335.82
4.3.110.0070.0275.77
4.3.100.0000.0305.68
4.3.90.0000.0235.69
4.3.80.0030.0435.69
4.3.70.0000.0335.69
4.3.60.0070.0275.67
4.3.50.0070.0235.71
4.3.40.0000.0475.70
4.3.30.0030.0235.61
4.3.20.0030.0305.61
4.3.10.0030.0205.61
4.3.00.0100.0306.94

preferences:
50.39 ms | 401 KiB | 5 Q