3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array_fill_keys(array('a', 'b', 'c'), array()); $a['a'][] = 1; var_dump($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)
8.3.60.0040.01416.47
8.3.50.0130.00316.41
8.3.40.0040.01218.72
8.3.30.0070.00718.63
8.3.20.0040.00418.75
8.3.10.0060.00318.40
8.3.00.0060.00319.26
8.2.180.0080.01116.50
8.2.170.0080.00622.96
8.2.160.0090.00618.95
8.2.150.0090.00024.18
8.2.140.0030.00524.66
8.2.130.0040.00426.16
8.2.120.0080.00318.82
8.2.110.0030.00620.47
8.2.100.0090.00317.72
8.2.90.0040.00417.50
8.2.80.0020.00518.82
8.2.70.0060.00317.50
8.2.60.0080.00017.50
8.2.50.0030.00617.80
8.2.40.0040.00419.35
8.2.30.0040.00417.57
8.2.20.0000.01117.48
8.2.10.0040.00417.67
8.2.00.0050.00317.80
8.1.280.0100.00725.92
8.1.270.0040.00423.99
8.1.260.0000.00726.35
8.1.250.0000.00928.09
8.1.240.0070.01421.96
8.1.230.0070.00422.08
8.1.220.0040.00418.55
8.1.210.0040.00418.77
8.1.200.0050.00317.00
8.1.190.0000.00917.10
8.1.180.0080.00018.10
8.1.170.0040.00417.62
8.1.160.0030.00319.13
8.1.150.0040.00418.59
8.1.140.0040.00417.29
8.1.130.0000.00717.38
8.1.120.0040.00417.41
8.1.110.0040.00417.34
8.1.100.0070.00017.44
8.1.90.0080.00017.42
8.1.80.0000.00717.32
8.1.70.0030.00317.39
8.1.60.0080.00017.51
8.1.50.0040.00417.36
8.1.40.0030.00817.38
8.1.30.0050.00317.61
8.1.20.0040.00417.54
8.1.10.0000.00717.44
8.1.00.0030.00617.42
8.0.300.0000.00718.77
8.0.290.0040.00416.63
8.0.280.0030.00318.49
8.0.270.0040.00417.18
8.0.260.0000.00716.79
8.0.250.0070.00016.89
8.0.240.0000.00816.87
8.0.230.0000.00716.82
8.0.220.0030.00316.78
8.0.210.0030.00316.86
8.0.200.0050.00216.77
8.0.190.0000.00816.76
8.0.180.0030.00616.74
8.0.170.0080.00016.70
8.0.160.0000.00816.79
8.0.150.0000.01016.71
8.0.140.0030.00616.66
8.0.130.0000.00613.27
8.0.120.0000.00816.79
8.0.110.0040.00416.59
8.0.100.0040.00416.83
8.0.90.0000.00716.69
8.0.80.0030.01316.77
8.0.70.0070.00016.80
8.0.60.0000.00916.64
8.0.50.0000.00816.93
8.0.30.0190.00616.94
8.0.20.0050.01417.12
8.0.10.0040.00416.81
8.0.00.0110.00716.71
7.4.330.0050.00012.87
7.4.320.0000.00616.51
7.4.300.0040.00416.40
7.4.290.0040.00416.43
7.4.280.0000.00716.34
7.4.270.0040.00416.41
7.4.260.0000.00513.12
7.4.250.0050.00316.45
7.4.240.0000.00716.51
7.4.230.0070.00316.44
7.4.220.0130.00916.57
7.4.210.0060.01416.60
7.4.200.0040.00416.50
7.4.190.0000.00716.66
7.4.160.0070.00716.37
7.4.150.0070.01316.52
7.4.140.0150.00716.33
7.4.130.0060.01016.42
7.4.120.0140.00316.52
7.4.110.0110.00716.52
7.4.100.0160.00616.25
7.4.90.0120.00616.38
7.4.80.0090.01219.39
7.4.70.0060.01316.30
7.4.60.0070.01016.34
7.4.50.0000.00416.60
7.4.40.0090.00616.28
7.4.30.0060.01016.49
7.4.00.0030.00914.77
7.3.330.0030.00313.14
7.3.320.0050.00013.13
7.3.310.0030.00516.19
7.3.300.0030.00316.30
7.3.290.0070.00716.30
7.3.280.0120.00516.21
7.3.270.0100.00616.57
7.3.260.0130.00516.28
7.3.250.0060.01416.19
7.3.240.0060.00916.52
7.3.230.0090.00916.51
7.3.210.0090.00916.44
7.3.200.0060.01316.37
7.3.190.0110.00616.23
7.3.180.0110.00516.58
7.3.170.0090.00916.62
7.3.160.0190.00316.20
7.3.120.0080.00314.98
7.3.10.0210.00615.99
7.3.00.0100.01016.09
7.2.330.0060.01116.33
7.2.320.0100.00716.53
7.2.310.0100.01016.62
7.2.300.0110.00716.39
7.2.290.0040.01716.75
7.2.130.0200.00016.84
7.2.120.0150.00816.34
7.2.110.0140.00716.46
7.2.100.0070.02116.54
7.2.90.0100.01016.43
7.2.80.0150.00616.36
7.2.70.0150.00816.68
7.2.60.0120.01116.72
7.2.50.0170.00316.59
7.2.40.0070.01116.35
7.2.30.0030.01316.64
7.2.20.0100.00916.32
7.2.10.0090.00616.45
7.2.00.0070.00818.17
7.1.250.0160.00615.52
7.1.200.0130.00015.47
7.1.100.0030.01017.93
7.1.70.0040.00416.95
7.1.60.0070.01419.30
7.1.50.0250.00934.42
7.1.00.0030.08322.48
7.0.200.0030.00616.72
7.0.140.0170.06321.95
7.0.120.0070.07021.96
7.0.60.0100.07719.94
7.0.50.0070.03717.90
7.0.40.0000.04720.08
7.0.30.0300.08020.13
7.0.20.0300.06020.12
7.0.10.0000.08720.13
7.0.00.0100.07720.16
5.6.280.0100.06721.09
5.6.210.0170.07020.60
5.6.200.0030.08718.13
5.6.190.0130.06720.44
5.6.180.0500.06320.60
5.6.170.0230.03720.71
5.6.160.0070.08720.51
5.6.150.0030.06718.10
5.6.140.0170.03018.12
5.6.130.0100.04718.21
5.6.120.0000.04721.12
5.6.110.0030.09021.00
5.6.100.0100.08321.10
5.6.90.0070.06021.09
5.6.80.0070.07020.40
5.5.350.0030.05020.29
5.5.340.0030.08017.93
5.5.330.0100.08320.07
5.5.320.2000.04320.28
5.5.310.0270.06320.20
5.5.300.0100.04318.01
5.5.290.0070.05017.92
5.5.280.0070.03720.89
5.5.270.0130.04320.85
5.5.260.0100.07320.75
5.5.250.0030.05020.57
5.5.240.0070.07720.36
5.4.450.0430.04719.12
5.4.440.0300.02019.25
5.4.430.0000.03719.25
5.4.420.0000.06019.20
5.4.410.0870.02319.26
5.4.400.0430.03719.21
5.4.390.0330.03318.88
5.4.380.0270.04318.88
5.4.370.0230.04319.24
5.4.360.0670.03719.16
5.4.350.0300.03719.06
5.4.340.0670.04719.14
5.4.320.0600.04319.02
5.4.310.0700.02719.04
5.4.300.0370.05018.87
5.4.290.0830.03719.25
5.4.280.0500.02719.21
5.4.270.0830.03318.89
5.4.260.0630.04718.93
5.4.250.0400.04019.21
5.4.240.0330.04019.21
5.4.230.0330.04019.05
5.4.220.0870.03319.05
5.4.210.0330.03718.87
5.4.200.0670.04318.92
5.4.190.0600.04019.24
5.4.180.0670.03718.86
5.4.170.0530.04718.75
5.4.160.0700.03319.11
5.4.150.0370.04319.19
5.4.140.0730.04016.38
5.4.130.0830.05016.27
5.4.120.0600.03016.16
5.4.110.0800.02716.05
5.4.100.0470.03316.36
5.4.90.0600.04016.28
5.4.80.0330.03316.46
5.4.70.0200.04316.39
5.4.60.0770.03316.40
5.4.50.0630.03316.39
5.4.40.0830.03716.34
5.4.30.0600.03716.34
5.4.20.0400.04316.42
5.4.10.1000.02716.41
5.4.00.0570.03315.90
5.3.290.0770.04015.63
5.3.280.0670.04015.51
5.3.270.0430.05015.51
5.3.260.0270.04315.51
5.3.250.0700.04715.51
5.3.240.0230.04315.51
5.3.230.0430.04315.51
5.3.220.0570.04015.51
5.3.210.0570.03715.51
5.3.200.0530.02715.51
5.3.190.0730.04015.51
5.3.180.0370.04715.51
5.3.170.0730.04715.51
5.3.160.0630.02715.51
5.3.150.0400.04015.51
5.3.140.0700.04315.51
5.3.130.0630.04315.51
5.3.120.0270.04315.51
5.3.110.0170.04715.51
5.3.100.0500.03315.51
5.3.90.0400.03315.51
5.3.80.0430.04015.51
5.3.70.0230.03315.51
5.3.60.0500.05015.51
5.3.50.0400.02715.51
5.3.40.0700.03015.51
5.3.30.0800.03315.51
5.3.20.0600.04015.51
5.3.10.0330.04715.51
5.3.00.0400.04715.50
5.2.170.0630.02715.51
5.2.160.0500.03015.51
5.2.150.0370.04715.51
5.2.140.0800.02715.51
5.2.130.0400.03015.51
5.2.120.0400.03015.51
5.2.110.0500.03015.50
5.2.100.0600.03315.47
5.2.90.0330.02315.28
5.2.80.0570.03315.28
5.2.70.0230.03315.28
5.2.60.0630.02015.28
5.2.50.0430.02715.28
5.2.40.0400.03015.28
5.2.30.0330.03015.28
5.2.20.0430.02315.28
5.2.10.0200.02715.28
5.2.00.0330.02715.28
5.1.60.0300.02015.28
5.1.50.0530.01715.28
5.1.40.0500.02015.28
5.1.30.0270.02715.28
5.1.20.0330.02315.28
5.1.10.0430.02315.28
5.1.00.0530.02715.28
5.0.50.0070.02315.28
5.0.40.0100.01715.28
5.0.30.0170.03315.28
5.0.20.0170.01715.28
5.0.10.0130.02315.28
5.0.00.0100.03015.28
4.4.90.0200.02015.28
4.4.80.0200.01315.28
4.4.70.0200.01715.28
4.4.60.0130.01715.28
4.4.50.0230.01315.28
4.4.40.0300.02715.28
4.4.30.0330.01715.28
4.4.20.0270.01315.28
4.4.10.0130.01315.28
4.4.00.0270.03015.28
4.3.110.0130.01315.28
4.3.100.0330.01315.28
4.3.90.0170.01715.28
4.3.80.0130.02015.28
4.3.70.0100.01315.28
4.3.60.0170.02015.28
4.3.50.0230.02015.28
4.3.40.0000.02715.28
4.3.30.0030.01715.28
4.3.20.0130.01015.28
4.3.10.0000.01715.28
4.3.00.0100.01715.28

preferences:
34.43 ms | 401 KiB | 5 Q