3v4l.org

run code in 300+ PHP versions simultaneously
<?php list($one, $two) = false; var_dump($one, $two); echo PHP_EOL; list($one, $two) = null; var_dump($one, $two); echo PHP_EOL; list($one, $two) = array(); var_dump($one, $two); echo PHP_EOL;

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)
8.3.60.0210.00016.75
8.3.50.0130.00521.92
8.3.40.0150.00618.84
8.3.30.0120.00318.99
8.3.20.0120.00320.30
8.3.10.0000.00723.56
8.3.00.0090.00019.22
8.2.180.0040.01216.75
8.2.170.0140.00722.96
8.2.160.0100.00320.38
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0140.00426.16
8.2.120.0000.00722.25
8.2.110.0040.00422.11
8.2.100.0060.00618.03
8.2.90.0050.00219.17
8.2.80.0000.00918.05
8.2.70.0000.01017.63
8.2.60.0040.00417.93
8.2.50.0050.00218.07
8.2.40.0000.00718.16
8.2.30.0040.00417.92
8.2.20.0050.00317.79
8.2.10.0030.00618.10
8.2.00.0100.00017.79
8.1.280.0150.00625.92
8.1.270.0030.00521.96
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0000.00923.72
8.1.230.0030.00719.21
8.1.220.0000.00717.74
8.1.210.0000.00818.77
8.1.200.0090.00017.34
8.1.190.0030.00617.40
8.1.180.0050.00318.10
8.1.170.0040.00418.50
8.1.160.0030.00321.94
8.1.150.0030.00518.57
8.1.140.0050.00217.28
8.1.130.0030.00317.75
8.1.120.0000.00717.40
8.1.110.0040.00417.41
8.1.100.0000.00817.45
8.1.90.0070.00017.42
8.1.80.0000.00717.34
8.1.70.0030.00317.34
8.1.60.0060.00317.37
8.1.50.0000.00817.34
8.1.40.0040.00417.44
8.1.30.0040.00417.55
8.1.20.0000.00717.60
8.1.10.0050.00217.53
8.1.00.0030.00517.50
8.0.300.0080.00018.77
8.0.290.0000.00817.18
8.0.280.0040.00418.44
8.0.270.0040.00416.91
8.0.260.0000.00617.20
8.0.250.0000.00716.90
8.0.240.0050.00416.92
8.0.230.0000.00716.85
8.0.220.0070.00016.79
8.0.210.0030.00316.86
8.0.200.0030.00616.87
8.0.190.0040.00416.91
8.0.180.0040.00416.79
8.0.170.0080.00016.94
8.0.160.0030.00316.86
8.0.150.0040.00316.79
8.0.140.0000.00816.82
8.0.130.0060.00013.32
8.0.120.0000.00716.79
8.0.110.0070.00016.92
8.0.100.0000.00716.94
8.0.90.0000.00816.86
8.0.80.0060.01016.94
8.0.70.0040.00416.95
8.0.60.0070.00016.75
8.0.50.0060.00316.77
8.0.30.0150.00317.10
8.0.20.0120.01117.40
8.0.10.0070.00016.85
8.0.00.0140.00816.88
7.4.330.0050.00015.09
7.4.320.0030.00316.57
7.4.300.0000.00716.51
7.4.290.0070.00016.39
7.4.280.0040.00416.32
7.4.270.0040.00416.55
7.4.260.0040.00416.34
7.4.250.0000.00716.34
7.4.240.0020.00516.44
7.4.230.0000.00616.32
7.4.220.0060.01016.35
7.4.210.0090.00916.51
7.4.200.0040.00416.59
7.4.190.0040.00416.34
7.4.160.0060.00916.42
7.4.150.0090.00917.40
7.4.140.0080.01017.86
7.4.130.0110.00516.49
7.4.120.0080.00916.39
7.4.110.0130.00616.44
7.4.100.0120.00616.30
7.4.90.0030.01316.71
7.4.80.0110.01219.39
7.4.70.0110.01116.39
7.4.60.0080.00816.43
7.4.50.0040.00416.39
7.4.40.0030.00922.77
7.4.30.0130.00316.60
7.4.00.0070.01014.63
7.3.330.0030.00313.14
7.3.320.0050.00013.00
7.3.310.0030.00316.38
7.3.300.0060.00216.29
7.3.290.0040.01216.25
7.3.280.0110.00816.24
7.3.270.0130.00317.40
7.3.260.0130.00316.34
7.3.250.0070.01116.24
7.3.240.0040.01216.38
7.3.230.0120.00616.39
7.3.210.0070.01716.59
7.3.200.0060.01319.39
7.3.190.0100.00716.39
7.3.180.0070.01116.56
7.3.170.0060.00916.39
7.3.160.0100.00616.29
7.3.120.0070.01014.89
7.2.330.0070.01016.61
7.2.320.0140.00416.56
7.2.310.0080.00816.71
7.2.300.0090.00616.72
7.2.290.0060.01116.64
7.2.60.0090.00616.70
7.2.00.0060.00619.30
7.1.200.0040.01115.90
7.1.100.0060.00817.89
7.1.70.0090.00317.00
7.1.60.0140.01019.33
7.1.50.0030.01016.50
7.1.00.0070.07322.44
7.0.200.0670.00714.86
7.0.140.0070.07022.21
7.0.60.0130.07719.86
7.0.50.0100.06317.91
7.0.40.0030.06319.96
7.0.30.0430.05320.17
7.0.20.0230.06720.24
7.0.10.0070.04020.05
7.0.00.0100.08020.29
5.6.280.0070.06721.04
5.6.210.0170.07720.62
5.6.200.0070.07718.11
5.6.190.0130.03320.77
5.6.180.0170.04320.57
5.6.170.0200.03720.45
5.6.160.0070.03720.63
5.6.150.0000.07318.18
5.6.140.0100.03318.21
5.6.130.0030.07318.11
5.6.120.0030.07021.01
5.6.110.0000.04721.11
5.6.100.0070.08021.13
5.6.90.0100.08020.97
5.6.80.0030.08020.33
5.6.70.4370.04020.37
5.5.350.0100.08720.42
5.5.340.0000.04717.99
5.5.330.0030.08320.15
5.5.320.0030.04320.20
5.5.310.0330.04320.29
5.5.300.0030.04317.98
5.5.290.0030.09318.00
5.5.280.0000.06720.87
5.5.270.0200.06720.73
5.5.260.0170.07320.89
5.5.250.0170.07020.57
5.5.240.0170.08020.15
5.4.450.0130.07019.63
5.4.440.0200.06019.45
5.4.430.0300.05319.44
5.4.420.0230.05319.62
5.4.410.0270.05019.41
5.4.400.0230.05318.78
5.4.390.0100.05719.09
5.4.380.0300.06318.68
5.4.370.0430.05318.59
5.4.360.0500.04718.52
5.4.350.0370.06718.79
5.4.340.0400.05018.65
5.4.320.0060.03612.46
5.4.310.0060.03812.45
5.4.300.0060.04812.46
5.4.290.0110.05012.45
5.4.280.0110.03812.32
5.4.270.0120.05012.32
5.4.260.0140.05312.32
5.4.250.0070.04412.32
5.4.240.0140.05812.32
5.4.230.0080.05012.32
5.4.220.0210.04712.32
5.4.210.0130.07312.31
5.4.200.0180.06112.32
5.4.190.0160.07612.31
5.4.180.0120.05312.31
5.4.170.0070.05412.32
5.4.160.0130.06012.32
5.4.150.0150.05212.32
5.4.140.0130.07112.00
5.4.130.0130.05011.98
5.4.120.0130.04611.95
5.4.110.0150.04911.95
5.4.100.0140.04511.94
5.4.90.0130.03911.94
5.4.80.0060.04311.94
5.4.70.0080.03911.94
5.4.60.0120.03711.94
5.4.50.0090.04111.94
5.4.40.0090.04311.92
5.4.30.0130.03611.93
5.4.20.0120.03611.92
5.4.10.0100.03611.93
5.4.00.0060.04311.41
5.3.290.0070.03812.80
5.3.280.0110.05012.71
5.3.270.0100.05112.73
5.3.260.0110.05012.72
5.3.250.0150.04512.72
5.3.240.0110.05212.72
5.3.230.0110.04812.71
5.3.220.0080.05312.68
5.3.210.0130.05012.68
5.3.200.0150.05912.68
5.3.190.0090.05812.67
5.3.180.0160.05612.68
5.3.170.0130.04712.67
5.3.160.0280.09912.67
5.3.150.0090.04412.68
5.3.140.0080.04012.66
5.3.130.0100.05112.66
5.3.120.0050.04312.66
5.3.110.0070.04012.66
5.3.100.0080.04512.12
5.3.90.0110.04012.09
5.3.80.0070.04512.08
5.3.70.0120.03512.07
5.3.60.0080.04512.06
5.3.50.0100.04212.00
5.3.40.0080.04212.00
5.3.30.0130.03111.94
5.3.20.0100.04511.70
5.3.10.0100.05111.66
5.3.00.0130.04811.66
5.2.170.0090.0369.15
5.2.160.0160.0599.15
5.2.150.0130.0409.15
5.2.140.0090.0479.14
5.2.130.0120.0419.11
5.2.120.0060.0309.11
5.2.110.0060.0329.12
5.2.100.0070.0329.11
5.2.90.0030.0369.11
5.2.80.0070.0339.11
5.2.70.0070.0429.11
5.2.60.0030.0369.06
5.2.50.0050.0339.04
5.2.40.0060.0619.00
5.2.30.0080.0308.99
5.2.20.0110.0298.97
5.2.10.0140.0468.90
5.2.00.0110.0308.75
5.1.60.0050.0278.04
5.1.50.0040.0298.04
5.1.40.0090.0228.03
5.1.30.0070.0278.38
5.1.20.0070.0298.39
5.1.10.0050.0288.12
5.1.00.0050.0288.13
5.0.50.0040.0226.59
5.0.40.0080.0186.46
5.0.30.0030.0476.27
5.0.20.0040.0206.25
5.0.10.0040.0216.22
5.0.00.0040.0316.21
4.4.90.0040.0154.78
4.4.80.0050.0154.75
4.4.70.0050.0144.75
4.4.60.0030.0174.76
4.4.50.0030.0174.77
4.4.40.0040.0264.71
4.4.30.0020.0194.75
4.4.20.0040.0164.84
4.4.10.0010.0234.85
4.4.00.0030.0334.76
4.3.110.0060.0204.66
4.3.100.0040.0214.66
4.3.90.0000.0184.63
4.3.80.0080.0214.58
4.3.70.0060.0184.63
4.3.60.0070.0174.63
4.3.50.0030.0224.62
4.3.40.0180.0374.54
4.3.30.0050.0353.27
4.3.20.0070.0213.25
4.3.10.0030.0223.22
4.3.00.0000.0238.86

preferences:
34.92 ms | 401 KiB | 5 Q