3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array('id' => 'a','b','c','d','e','f','g'); $new_value = $array['id']; unset($arr['id']); array_unshift($array, $new_value); var_dump($array);

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)
8.3.60.0090.00616.75
8.3.50.0090.00922.89
8.3.40.0100.01018.83
8.3.30.0090.00618.92
8.3.20.0040.00420.21
8.3.10.0040.00421.66
8.3.00.0040.00417.80
8.2.180.0110.01116.75
8.2.170.0120.00622.96
8.2.160.0100.00320.45
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00421.09
8.2.110.0030.00620.94
8.2.100.0060.00617.91
8.2.90.0000.00819.23
8.2.80.0040.00417.97
8.2.70.0000.00817.50
8.2.60.0040.00817.55
8.2.50.0000.00818.07
8.2.40.0080.00018.16
8.2.30.0040.00418.15
8.2.20.0070.00017.80
8.2.10.0050.00218.03
8.2.00.0040.00417.73
8.1.280.0100.00325.92
8.1.270.0100.00023.93
8.1.260.0040.00426.35
8.1.250.0070.00328.09
8.1.240.0060.00319.54
8.1.230.0110.00017.52
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0040.00417.23
8.1.190.0000.00817.00
8.1.180.0080.00018.10
8.1.170.0060.00318.59
8.1.160.0000.00721.99
8.1.150.0000.00818.72
8.1.140.0000.00817.29
8.1.130.0050.00317.81
8.1.120.0070.00017.34
8.1.110.0020.00517.28
8.1.100.0040.00417.27
8.1.90.0070.00317.25
8.1.80.0000.00717.35
8.1.70.0030.00317.27
8.1.60.0030.00617.56
8.1.50.0060.00317.42
8.1.40.0000.00817.34
8.1.30.0040.00417.60
8.1.20.0000.00717.49
8.1.10.0040.00417.59
8.1.00.0080.00017.55
8.0.300.0070.00018.77
8.0.290.0080.00016.58
8.0.280.0000.00718.30
8.0.270.0000.00717.09
8.0.260.0000.00617.09
8.0.250.0070.00016.97
8.0.240.0030.00616.83
8.0.230.0030.00316.83
8.0.220.0000.00716.77
8.0.210.0000.00716.84
8.0.200.0030.00316.97
8.0.190.0040.00416.92
8.0.180.0040.00416.87
8.0.170.0000.00716.81
8.0.160.0000.00716.74
8.0.150.0000.00716.81
8.0.140.0000.00716.84
8.0.130.0030.00313.26
8.0.120.0000.00816.79
8.0.110.0030.00516.89
8.0.100.0080.00016.82
8.0.90.0070.00016.87
8.0.80.0180.00416.86
8.0.70.0000.00716.92
8.0.60.0000.00816.83
8.0.50.0040.00416.91
8.0.30.0150.00717.01
8.0.20.0120.00817.40
8.0.10.0080.00017.03
8.0.00.0120.00716.92
7.4.330.0000.00515.07
7.4.320.0000.00616.56
7.4.300.0030.00316.51
7.4.290.0030.00316.63
7.4.280.0050.00216.50
7.4.270.0000.00816.38
7.4.260.0040.00416.34
7.4.250.0030.00316.55
7.4.240.0040.00316.46
7.4.230.0000.00716.52
7.4.220.0120.00616.52
7.4.210.0100.00616.61
7.4.200.0030.00316.61
7.4.160.0120.00616.37
7.4.150.0100.01417.40
7.4.140.0070.01217.86
7.4.130.0130.00416.56
7.4.120.0080.01216.46
7.4.110.0170.00316.19
7.4.100.0100.01016.60
7.4.90.0150.00316.57
7.4.80.0090.00919.39
7.4.70.0000.01716.38
7.4.60.0060.01116.36
7.4.50.0000.00516.24
7.4.40.0140.01016.58
7.4.30.0100.00716.41
7.4.00.0030.00914.88
7.3.330.0050.00013.05
7.3.320.0030.00313.20
7.3.310.0000.00716.18
7.3.300.0000.00716.33
7.3.290.0080.01216.35
7.3.280.0100.00816.34
7.3.270.0090.01017.40
7.3.260.0140.00516.39
7.3.250.0120.00616.23
7.3.240.0050.01516.53
7.3.230.0070.01016.50
7.3.210.0070.01416.36
7.3.200.0090.01019.39
7.3.190.0100.00616.43
7.3.180.0140.00416.51
7.3.170.0160.00616.27
7.3.160.0040.01216.53
7.3.120.0070.01114.75
7.2.330.0090.00916.79
7.2.320.0050.01116.61
7.2.310.0100.01016.34
7.2.300.0080.00816.29
7.2.290.0090.00916.57
7.1.100.0090.00617.82
7.1.70.0030.00617.28
7.1.60.0090.01519.40
7.1.50.0100.01016.76
7.1.00.0100.07022.47
7.0.200.0000.01016.55
7.0.140.0130.06721.98
7.0.60.0100.04320.01
7.0.50.0070.04017.86
7.0.40.0030.04320.24
7.0.30.0200.05320.34
7.0.20.0170.05720.22
7.0.10.0100.05020.04
7.0.00.0030.07320.16
5.6.280.0100.06720.88
5.6.210.0200.06720.68
5.6.200.0100.07318.09
5.6.190.0030.07720.43
5.6.180.0230.03720.43
5.6.170.0070.05320.48
5.6.160.0100.05020.52
5.6.150.0170.06018.18
5.6.140.0070.08318.21
5.6.130.0130.06718.21
5.6.120.0070.08321.11
5.6.110.0130.08021.07
5.6.100.0030.04020.95
5.6.90.0170.07320.92
5.6.80.0100.06320.34
5.5.350.0300.07320.32
5.5.340.0030.04717.91
5.5.330.0070.05320.40
5.5.320.0200.04020.41
5.5.310.0430.03320.17
5.5.300.0100.07717.98
5.5.290.0030.05017.98
5.5.280.0030.08020.86
5.5.270.0070.05320.84
5.5.260.0070.05020.75
5.5.250.0030.08720.67
5.5.240.0000.08320.06
5.4.450.0670.05719.55
5.4.440.0730.06719.32
5.4.430.0170.06019.59
5.4.420.0100.05319.45
5.4.410.0100.05019.41
5.4.400.0000.06019.21
5.4.390.0070.05319.18
5.4.380.0300.05718.59
5.4.370.0430.04318.56
5.4.360.0230.05718.72
5.4.350.0400.05018.71
5.4.340.0170.06718.56
5.4.320.0070.04412.45
5.4.310.0050.04012.45
5.4.300.0100.03312.45
5.4.290.0090.03512.45
5.4.280.0060.03512.34
5.4.270.0070.03512.34
5.4.260.0050.03912.35
5.4.250.0050.03912.34
5.4.240.0050.03812.34
5.4.230.0050.03912.34
5.4.220.0060.03612.34
5.4.210.0100.03112.34
5.4.200.0080.03612.34
5.4.190.0080.03412.33
5.4.180.0060.03612.33
5.4.170.0090.03412.34
5.4.160.0040.03812.34
5.4.150.0060.03612.34
5.4.140.0030.04012.02
5.4.130.0040.03712.01
5.4.120.0030.03711.97
5.4.110.0080.03311.96
5.4.100.0040.03811.96
5.4.90.0070.03611.96
5.4.80.0050.03811.97
5.4.70.0050.03511.96
5.4.60.0090.03811.96
5.4.50.0070.03411.96
5.4.40.0050.03611.95
5.4.30.0050.03711.95
5.4.20.0070.03511.95
5.4.10.0040.03711.95
5.4.00.0050.03711.43
5.3.290.0090.04512.80
5.3.280.0070.03712.71
5.3.270.0050.04112.72
5.3.260.0060.04012.72
5.3.250.0020.04112.72
5.3.240.0120.03012.72
5.3.230.0080.03512.71
5.3.220.0050.03712.68
5.3.210.0050.03912.68
5.3.200.0030.03912.68
5.3.190.0040.03912.68
5.3.180.0050.03712.67
5.3.170.0040.03812.67
5.3.160.0070.03612.67
5.3.150.0080.03512.67
5.3.140.0080.03412.66
5.3.130.0050.03912.65
5.3.120.0050.03912.66
5.3.110.0050.03912.65
5.3.100.0050.03812.12
5.3.90.0060.03612.09
5.3.80.0050.03812.07
5.3.70.0100.03712.08
5.3.60.0040.03912.06
5.3.50.0080.03512.00
5.3.40.0070.03612.00
5.3.30.0060.03911.94
5.3.20.0040.03711.72
5.3.10.0030.03711.69
5.3.00.0070.03511.68
5.2.170.0090.0319.18
5.2.160.0030.0319.18
5.2.150.0040.0319.18
5.2.140.0070.0289.18
5.2.130.0060.0279.13
5.2.120.0020.0319.13
5.2.110.0050.0299.14
5.2.100.0070.0269.14
5.2.90.0080.0249.14
5.2.80.0050.0299.13
5.2.70.0050.0349.13
5.2.60.0040.0319.09
5.2.50.0050.0309.06
5.2.40.0050.0289.03
5.2.30.0060.0299.01
5.2.20.0080.0289.00
5.2.10.0030.0318.92
5.2.00.0030.0308.78
5.1.60.0070.0218.06
5.1.50.0040.0248.06
5.1.40.0050.0258.04
5.1.30.0040.0268.39
5.1.20.0030.0288.41
5.1.10.0060.0248.14
5.1.00.0030.0268.14
5.0.50.0020.0246.61
5.0.40.0040.0256.47
5.0.30.0040.0386.29
5.0.20.0040.0216.26
5.0.10.0030.0266.24
5.0.00.0040.0366.23
4.4.90.0020.0214.78
4.4.80.0020.0204.75
4.4.70.0020.0164.76
4.4.60.0030.0164.75
4.4.50.0030.0144.77
4.4.40.0050.0224.71
4.4.30.0060.0164.76
4.4.20.0050.0164.85
4.4.10.0030.0184.85
4.4.00.0040.0254.76
4.3.110.0050.0164.67
4.3.100.0070.0144.66
4.3.90.0030.0174.63
4.3.80.0020.0344.58
4.3.70.0030.0224.63
4.3.60.0030.0144.63
4.3.50.0020.0164.63
4.3.40.0030.0244.54
4.3.30.0010.0173.28
4.3.20.0050.0133.26
4.3.10.0020.0173.22
4.3.00.0070.0237.44

preferences:
87.93 ms | 401 KiB | 5 Q