3v4l.org

run code in 300+ PHP versions simultaneously
<?php list($a,$b) = "aa"; var_dump($a,$b); $a[0]="ab"; list($a,$b) = $a[0]; var_dump($a,$b);

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)
8.3.70.0100.00716.38
8.3.60.0110.00318.43
8.3.50.0120.00821.86
8.3.40.0060.00918.76
8.3.30.0100.00319.17
8.3.20.0040.00420.33
8.3.10.0050.00323.51
8.3.00.0040.00419.38
8.2.180.0060.01016.50
8.2.170.0110.00322.96
8.2.160.0060.00922.27
8.2.150.0110.00324.18
8.2.140.0000.00824.66
8.2.130.0000.00826.16
8.2.120.0060.00322.18
8.2.110.0040.00422.08
8.2.100.0040.00817.72
8.2.90.0040.00417.75
8.2.80.0000.00818.48
8.2.70.0060.00617.80
8.2.60.0040.00418.09
8.2.50.0030.00618.10
8.2.40.0040.00421.02
8.2.30.0070.00019.23
8.2.20.0000.00717.69
8.2.10.0000.00718.04
8.2.00.0050.00317.68
8.1.280.0110.00425.92
8.1.270.0040.00423.84
8.1.260.0070.00026.35
8.1.250.0050.00228.09
8.1.240.0070.01022.09
8.1.230.0040.00717.85
8.1.220.0040.00417.79
8.1.210.0080.00018.77
8.1.200.0060.00617.35
8.1.190.0080.00017.22
8.1.180.0060.00318.10
8.1.170.0080.00018.52
8.1.160.0000.00718.79
8.1.150.0050.00218.80
8.1.140.0000.00717.26
8.1.130.0070.00017.73
8.1.120.0050.00317.28
8.1.110.0040.00417.28
8.1.100.0030.00317.29
8.1.90.0040.00417.39
8.1.80.0000.00717.43
8.1.70.0040.00417.30
8.1.60.0000.00917.50
8.1.50.0050.00317.42
8.1.40.0070.00017.47
8.1.30.0040.00417.42
8.1.20.0040.00417.63
8.1.10.0000.00717.61
8.1.00.0000.00817.57
8.0.300.0050.00318.77
8.0.290.0040.00416.75
8.0.280.0000.00718.43
8.0.270.0030.00317.19
8.0.260.0000.00617.10
8.0.250.0000.00616.80
8.0.240.0030.00316.76
8.0.230.0040.00416.79
8.0.220.0040.00416.69
8.0.210.0030.00616.66
8.0.200.0060.00016.93
8.0.190.0040.00416.85
8.0.180.0030.00416.76
8.0.170.0000.00816.82
8.0.160.0070.00016.94
8.0.150.0000.00816.77
8.0.140.0110.00016.64
8.0.130.0030.00313.27
8.0.120.0040.00416.82
8.0.110.0000.00716.76
8.0.100.0050.00216.76
8.0.90.0000.00816.70
8.0.80.0110.01116.83
8.0.70.0040.00416.77
8.0.60.0000.00816.76
8.0.50.0040.00416.79
8.0.30.0050.01317.17
8.0.20.0110.00817.40
8.0.10.0030.00616.90
8.0.00.0100.00716.74
7.4.330.0020.00215.00
7.4.320.0030.00316.45
7.4.300.0000.00616.50
7.4.290.0000.00716.39
7.4.280.0040.00416.45
7.4.270.0040.00716.54
7.4.260.0080.00016.44
7.4.250.0040.00416.34
7.4.240.0020.00516.41
7.4.230.0000.00716.44
7.4.220.0160.00616.50
7.4.210.0070.00716.54
7.4.200.0000.00716.57
7.4.160.0000.01516.47
7.4.150.0030.01817.40
7.4.140.0070.01117.86
7.4.130.0150.00316.53
7.4.120.0110.00616.36
7.4.110.0140.00616.51
7.4.100.0030.01416.42
7.4.90.0060.01316.53
7.4.80.0090.00919.39
7.4.70.0060.01516.45
7.4.60.0110.00516.40
7.4.50.0000.00816.34
7.4.40.0080.01316.38
7.4.30.0190.00416.45
7.4.00.0100.00814.78
7.3.330.0050.00013.07
7.3.320.0000.00513.03
7.3.310.0000.00716.20
7.3.300.0040.00416.15
7.3.290.0040.01116.29
7.3.280.0110.00616.33
7.3.270.0090.00917.40
7.3.260.0110.00516.48
7.3.250.0130.00516.30
7.3.240.0030.01316.42
7.3.230.0130.00916.39
7.3.210.0160.00616.48
7.3.200.0060.01619.39
7.3.190.0070.01616.49
7.3.180.0100.00616.13
7.3.170.0090.00616.27
7.3.160.0050.01116.57
7.3.120.0040.01114.89
7.3.110.0050.01114.81
7.3.100.0050.00814.69
7.3.90.0050.00414.74
7.3.80.0050.01014.72
7.3.70.0060.00714.93
7.3.60.0020.01114.65
7.3.50.0050.00714.77
7.3.40.0080.00614.73
7.3.30.0080.00514.62
7.3.20.0100.00516.55
7.3.10.0090.00616.54
7.3.00.0080.00616.43
7.2.330.0090.00916.41
7.2.320.0070.01016.58
7.2.310.0360.00716.20
7.2.300.0090.00916.50
7.2.290.0150.00616.32
7.2.250.0050.01515.24
7.2.240.0080.00914.93
7.2.230.0080.00914.96
7.2.220.0030.00615.10
7.2.210.0090.00114.77
7.2.200.0080.00614.90
7.2.190.0070.00514.99
7.2.180.0030.00914.87
7.2.170.0070.00615.02
7.2.60.0040.01116.88
7.2.00.0070.00419.40
7.1.330.0020.01215.73
7.1.320.0050.00715.81
7.1.310.0000.01115.90
7.1.300.0070.00715.62
7.1.290.0070.00515.75
7.1.280.0030.01115.81
7.1.270.0060.00615.74
7.1.260.0070.00715.74
7.1.200.0140.00015.77
7.1.100.0040.00717.70
7.1.70.0000.00717.20
7.1.60.0060.01619.32
7.1.50.0130.01016.89
7.1.00.0030.07722.45
7.0.200.0030.00516.88
7.0.140.0000.07321.99
7.0.60.0170.06320.00
7.0.50.0030.08317.84
7.0.40.0030.06020.20
7.0.30.0330.04320.12
7.0.20.0430.06720.45
7.0.10.0270.05020.19
7.0.00.0070.06020.09
5.6.280.0000.07721.02
5.6.210.0070.06320.70
5.6.200.0030.07718.12
5.6.190.0100.08020.41
5.6.180.3630.04320.55
5.6.170.0300.05320.50
5.6.160.0070.04020.52
5.6.150.0070.08318.18
5.6.140.0100.04718.12
5.6.130.0130.08018.11
5.6.120.0030.04321.07
5.6.110.0130.08020.90
5.6.100.0100.07321.12
5.6.90.0030.04320.99
5.6.80.0170.07320.50
5.6.70.4230.03720.50
5.5.350.0300.07020.32
5.5.340.0070.07717.92
5.5.330.0030.04320.29
5.5.320.0170.04320.30
5.5.310.0330.05320.41
5.5.300.0100.07317.90
5.5.290.0000.04717.92
5.5.280.0170.06020.83
5.5.270.0100.04020.76
5.5.260.0070.08720.92
5.5.250.0000.09020.49
5.5.240.0170.06720.15
5.4.450.1400.03719.14
5.4.440.0900.07019.54
5.4.430.1070.06719.18
5.4.420.0870.00019.48
5.4.410.0670.00019.36
5.4.400.0700.00019.13
5.4.390.0630.00018.91
5.4.380.0630.00019.26
5.4.370.0630.00019.04
5.4.360.0630.00019.02
5.4.350.0670.00019.00
5.4.340.0030.03811.97
5.4.320.0060.03812.45
5.4.310.0070.03812.45
5.4.300.0100.03412.45
5.4.290.0060.04112.45
5.4.280.0070.03712.35
5.4.270.0050.04012.35
5.4.260.0060.04012.35
5.4.250.0070.03712.35
5.4.240.0040.04012.35
5.4.230.0090.03812.34
5.4.220.0090.03412.34
5.4.210.0050.03612.34
5.4.200.0070.03612.34
5.4.190.0050.03612.34
5.4.180.0030.03812.34
5.4.170.0040.03712.35
5.4.160.0060.03412.34
5.4.150.0060.04112.34
5.4.140.0040.03712.03
5.4.130.0080.03412.02
5.4.120.0050.03611.97
5.4.110.0040.03711.96
5.4.100.0040.03711.97
5.4.90.0090.03511.97
5.4.80.0040.03911.96
5.4.70.0080.03311.96
5.4.60.0100.03011.97
5.4.50.0050.03611.96
5.4.40.0060.03411.95
5.4.30.0080.04611.95
5.4.20.0090.04811.95
5.4.10.0070.05011.95
5.4.00.0110.04711.44
5.3.290.0080.05512.80
5.3.280.0070.03712.71
5.3.270.0060.03912.73
5.3.260.0020.04212.72
5.3.250.0060.03712.72
5.3.240.0090.03412.71
5.3.230.0100.04712.71
5.3.220.0060.03812.68
5.3.210.0060.03912.68
5.3.200.0080.03312.68
5.3.190.0040.03912.68
5.3.180.0050.03712.68
5.3.170.0080.05112.67
5.3.160.0050.03812.68
5.3.150.0070.03612.68
5.3.140.0040.03812.66
5.3.130.0040.04012.66
5.3.120.0060.03912.66
5.3.110.0040.04012.66
5.3.100.0080.03612.12
5.3.90.0090.03912.09
5.3.80.0060.03712.07
5.3.70.0040.03912.07
5.3.60.0070.03512.06
5.3.50.0070.03412.00
5.3.40.0070.03512.00
5.3.30.0060.03511.95
5.3.20.0050.03611.72
5.3.10.0060.03411.69
5.3.00.0080.03711.68
5.2.170.0030.0329.18
5.2.160.0040.0299.18
5.2.150.0050.0309.18
5.2.140.0020.0339.18
5.2.130.0060.0289.14
5.2.120.0050.0289.13
5.2.110.0060.0279.14
5.2.100.0050.0289.14
5.2.90.0060.0279.14
5.2.80.0040.0319.13
5.2.70.0060.0289.13
5.2.60.0100.0249.08
5.2.50.0040.0309.05
5.2.40.0040.0299.03
5.2.30.0010.0339.01
5.2.20.0050.0288.99
5.2.10.0040.0288.92
5.2.00.0070.0368.78
5.1.60.0020.0308.07
5.1.50.0030.0268.07
5.1.40.0040.0248.04
5.1.30.0010.0298.39
5.1.20.0070.0358.42
5.1.10.0050.0348.14
5.1.00.0040.0258.14
5.0.50.0080.0166.61
5.0.40.0040.0186.48
5.0.30.0010.0336.29
5.0.20.0030.0196.26
5.0.10.0040.0186.24
5.0.00.0000.0336.23
4.4.90.0020.0164.77
4.4.80.0020.0164.76
4.4.70.0000.0184.76
4.4.60.0030.0154.75
4.4.50.0030.0154.77
4.4.40.0010.0274.71
4.4.30.0020.0164.76
4.4.20.0060.0124.84
4.4.10.0030.0154.85
4.4.00.0030.0254.76
4.3.110.0040.0144.67
4.3.100.0020.0154.67
4.3.90.0040.0144.64
4.3.80.0060.0214.59
4.3.70.0000.0174.63
4.3.60.0010.0174.63
4.3.50.0040.0154.63
4.3.40.0020.0254.54
4.3.30.0020.0163.28
4.3.20.0030.0173.26
4.3.10.0030.0143.21
4.3.00.0300.01714.27

preferences:
57.89 ms | 401 KiB | 5 Q