3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('qwe' => $a['qwe']); var_dump($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)
8.3.60.0070.01116.72
8.3.50.0100.01122.04
8.3.40.0110.00418.84
8.3.30.0110.00318.87
8.3.20.0000.00720.09
8.3.10.0000.00721.73
8.3.00.0060.00317.89
8.2.180.0090.00916.60
8.2.170.0030.01422.96
8.2.160.0070.00720.35
8.2.150.0070.00024.18
8.2.140.0000.00724.66
8.2.130.0070.00026.16
8.2.120.0040.00421.03
8.2.110.0030.00622.08
8.2.100.0110.00017.97
8.2.90.0040.00419.05
8.2.80.0060.00317.97
8.2.70.0080.00017.48
8.2.60.0000.00818.03
8.2.50.0030.00518.07
8.2.40.0040.00418.03
8.2.30.0000.00818.24
8.2.20.0000.01017.68
8.2.10.0000.00718.05
8.2.00.0000.00817.79
8.1.280.0100.01025.92
8.1.270.0080.00022.19
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0030.00623.98
8.1.230.0080.00418.97
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0000.00817.23
8.1.190.0080.00016.88
8.1.180.0030.00618.10
8.1.170.0050.00318.28
8.1.160.0060.00321.94
8.1.150.0000.00718.72
8.1.140.0040.00417.29
8.1.130.0000.00717.78
8.1.120.0000.00717.29
8.1.110.0040.00417.33
8.1.100.0000.00817.39
8.1.90.0070.00017.40
8.1.80.0040.00317.31
8.1.70.0040.00417.38
8.1.60.0000.00817.41
8.1.50.0040.00417.46
8.1.40.0040.00417.32
8.1.30.0000.00817.57
8.1.20.0040.00417.47
8.1.10.0070.00017.44
8.1.00.0000.00717.51
8.0.300.0000.00919.21
8.0.290.0060.00316.63
8.0.280.0040.00418.37
8.0.270.0000.00817.18
8.0.260.0000.00617.12
8.0.250.0000.00716.96
8.0.240.0020.00516.97
8.0.230.0000.00716.80
8.0.220.0040.00416.92
8.0.210.0030.00516.88
8.0.200.0000.00716.89
8.0.190.0040.00417.00
8.0.180.0040.00416.79
8.0.170.0040.00416.80
8.0.160.0000.00716.95
8.0.150.0030.00316.81
8.0.140.0030.00616.91
8.0.130.0000.00513.38
8.0.120.0050.00216.71
8.0.110.0000.00716.81
8.0.100.0000.00716.94
8.0.90.0040.00416.72
8.0.80.0030.01316.77
8.0.70.0000.00716.95
8.0.60.0000.00716.95
8.0.50.0000.00716.94
8.0.30.0140.00817.03
8.0.20.0150.00417.40
8.0.10.0040.00416.82
8.0.00.0070.01016.82
7.4.330.0050.00015.00
7.4.320.0030.00316.48
7.4.300.0000.00616.38
7.4.290.0040.00416.42
7.4.280.0030.00316.52
7.4.270.0000.00716.42
7.4.260.0000.00716.41
7.4.250.0000.00716.39
7.4.240.0050.00216.41
7.4.230.0000.00716.63
7.4.220.0120.00816.47
7.4.210.0090.00616.47
7.4.200.0000.00716.33
7.4.160.0040.01216.34
7.4.150.0060.01117.40
7.4.140.0080.01017.86
7.4.130.0080.00816.41
7.4.120.0070.00916.53
7.4.110.0090.00916.39
7.4.100.0130.00316.72
7.4.90.0100.00716.44
7.4.80.0170.00719.39
7.4.70.0130.00516.42
7.4.60.0100.00716.35
7.4.50.0000.00416.60
7.4.40.0060.01016.57
7.4.30.0070.01016.52
7.4.00.0060.01014.93
7.3.330.0030.00313.07
7.3.320.0050.00013.17
7.3.310.0030.00316.40
7.3.300.0070.00016.32
7.3.290.0070.01316.26
7.3.280.0060.01116.24
7.3.270.0080.00817.40
7.3.260.0060.01716.20
7.3.250.0150.00816.29
7.3.240.0070.01016.43
7.3.230.0070.01416.45
7.3.210.0150.00316.43
7.3.200.0090.01019.39
7.3.190.0080.00816.44
7.3.180.0090.00616.25
7.3.170.0080.00816.60
7.3.160.0090.01216.34
7.3.120.0060.01014.95
7.3.110.0080.00814.96
7.3.100.0030.01314.75
7.3.90.0060.01214.59
7.3.80.0000.01814.57
7.3.70.0040.00414.66
7.3.60.0080.00814.78
7.3.50.0070.00714.72
7.3.40.0060.00914.59
7.3.30.0060.00614.67
7.3.20.0100.00616.70
7.3.10.0070.00716.71
7.3.00.0070.00916.54
7.2.330.0140.00316.22
7.2.320.0110.01116.29
7.2.310.0060.01216.52
7.2.300.0070.01016.39
7.2.290.0130.00916.59
7.2.250.0100.00715.20
7.2.240.0060.00914.86
7.2.230.0060.00914.63
7.2.220.0030.00614.59
7.2.210.0030.00915.04
7.2.200.0090.00314.88
7.2.190.0000.01614.82
7.2.180.0060.00614.75
7.2.170.0070.00714.91
7.2.130.0060.00316.83
7.2.120.0100.00316.81
7.2.110.0090.00316.46
7.2.100.0110.00016.42
7.2.90.0070.01016.95
7.2.80.0080.00616.90
7.2.70.0030.01516.75
7.2.60.0080.00816.80
7.2.50.0130.01016.73
7.2.40.0090.01216.62
7.2.30.0070.00716.82
7.2.20.0060.00616.84
7.2.10.0030.01516.97
7.2.00.0070.00718.01
7.1.330.0130.00315.87
7.1.320.0090.00315.39
7.1.310.0060.00615.65
7.1.300.0000.01515.92
7.1.290.0090.00315.71
7.1.280.0000.01115.80
7.1.270.0050.00515.46
7.1.260.0030.01315.47
7.1.250.0070.00715.39
7.1.100.0060.00618.05
7.1.70.0030.00617.20
7.1.60.0110.01419.25
7.1.50.0030.01616.94
7.1.00.0000.08022.35
7.0.200.0000.00716.75
7.0.140.0070.06722.15
7.0.60.0000.04320.02
7.0.50.0070.07717.66
7.0.40.0070.08320.30
7.0.30.0470.04320.13
7.0.20.0270.07720.33
7.0.10.0030.07720.16
7.0.00.0030.04020.13
5.6.280.0000.07321.04
5.6.210.0030.08320.54
5.6.200.0070.04018.23
5.6.190.0100.08320.47
5.6.180.3100.04020.43
5.6.170.0370.08020.33
5.6.160.0070.03720.49
5.6.150.0100.07018.25
5.6.140.0070.06718.11
5.6.130.0100.03718.07
5.6.120.0070.05321.13
5.6.110.0130.07720.88
5.6.100.0070.09021.10
5.6.90.0200.07320.84
5.6.80.0030.03720.53
5.5.350.4300.04320.32
5.5.340.0070.08017.98
5.5.330.0100.08020.34
5.5.320.0370.04020.29
5.5.310.0370.06020.26
5.5.300.0100.07717.91
5.5.290.0000.04317.91
5.5.280.0070.07320.86
5.5.270.0130.04020.75
5.5.260.0030.08020.66
5.5.250.0070.04020.57
5.5.240.0170.07020.11
5.4.450.1170.03319.46
5.4.440.0870.04319.24
5.4.430.0800.04719.13
5.4.420.1470.04719.13
5.4.410.1030.03719.08
5.4.400.1300.03019.05
5.4.390.1470.03318.88
5.4.380.0400.06718.50
5.4.370.0330.05018.70
5.4.360.0400.05318.46
5.4.350.0300.05718.49
5.4.340.0370.06018.61
5.4.320.0050.04312.45
5.4.310.0070.03712.45
5.4.300.0030.03912.45
5.4.290.0060.03812.45
5.4.280.0170.03012.35
5.4.270.0020.04012.34
5.4.260.0090.03812.35
5.4.250.0060.03812.35
5.4.240.0070.03512.34
5.4.230.0070.03712.34
5.4.220.0080.03512.34
5.4.210.0060.03512.34
5.4.200.0040.03912.34
5.4.190.0060.04012.34
5.4.180.0110.03612.34
5.4.170.0060.03712.35
5.4.160.0050.03712.34
5.4.150.0060.03612.34
5.4.140.0050.03912.02
5.4.130.0050.03712.01
5.4.120.0040.03711.96
5.4.110.0080.03311.96
5.4.100.0070.03511.96
5.4.90.0060.03611.96
5.4.80.0040.03911.96
5.4.70.0040.03711.96
5.4.60.0030.03611.96
5.4.50.0050.03611.96
5.4.40.0060.03511.95
5.4.30.0040.03811.95
5.4.20.0070.03411.95
5.4.10.0030.03711.95
5.4.00.0080.03711.43
5.3.290.0070.05712.80
5.3.280.0090.03512.71
5.3.270.0060.04012.72
5.3.260.0040.04112.72
5.3.250.0050.03812.72
5.3.240.0070.03812.72
5.3.230.0100.05712.71
5.3.220.0080.04212.68
5.3.210.0090.04112.68
5.3.200.0100.03512.68
5.3.190.0070.04112.68
5.3.180.0130.05312.68
5.3.170.0080.04112.67
5.3.160.0100.04212.67
5.3.150.0110.03912.67
5.3.140.0080.03812.66
5.3.130.0070.04712.66
5.3.120.0130.04912.66
5.3.110.0050.04512.66
5.3.100.0120.04112.12
5.3.90.0030.04212.08
5.3.80.0100.03412.07
5.3.70.0070.03712.07
5.3.60.0080.03812.06
5.3.50.0070.04212.00
5.3.40.0100.03612.00
5.3.30.0100.05211.94
5.3.20.0080.04311.72
5.3.10.0060.04711.69
5.3.00.0070.05011.68
5.2.170.0060.0299.18
5.2.160.0050.0309.18
5.2.150.0060.0299.18
5.2.140.0050.0329.18
5.2.130.0070.0279.13
5.2.120.0040.0299.13
5.2.110.0060.0289.14
5.2.100.0030.0309.14
5.2.90.0040.0299.13
5.2.80.0040.0309.13
5.2.70.0080.0279.13
5.2.60.0060.0299.08
5.2.50.0070.0279.05
5.2.40.0060.0289.04
5.2.30.0060.0299.01
5.2.20.0050.0309.00
5.2.10.0030.0308.92
5.2.00.0070.0278.77
5.1.60.0020.0258.06
5.1.50.0030.0268.05
5.1.40.0030.0258.04
5.1.30.0070.0238.39
5.1.20.0030.0278.41
5.1.10.0020.0288.14
5.1.00.0030.0268.14
5.0.50.0060.0196.61
5.0.40.0020.0216.47
5.0.30.0060.0286.28
5.0.20.0050.0186.26
5.0.10.0030.0216.23
5.0.00.0040.0316.22
4.4.90.0030.0154.78
4.4.80.0030.0154.75
4.4.70.0050.0134.75
4.4.60.0030.0154.76
4.4.50.0020.0164.77
4.4.40.0050.0234.71
4.4.30.0040.0144.75
4.4.20.0030.0164.85
4.4.10.0020.0174.85
4.4.00.0040.0274.76
4.3.110.0010.0184.67
4.3.100.0050.0184.67
4.3.90.0000.0244.64
4.3.80.0030.0324.58
4.3.70.0030.0164.63
4.3.60.0030.0144.63
4.3.50.0050.0134.62
4.3.40.0040.0244.54
4.3.30.0010.0173.28
4.3.20.0030.0153.25
4.3.10.0020.0153.21
4.3.00.0330.01315.25

preferences:
40.53 ms | 401 KiB | 5 Q