3v4l.org

run code in 300+ PHP versions simultaneously
<?php $variable = 'toto'; $toto = 'bar'; echo $$variable."\n"; // bar

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)
8.3.40.0140.00718.59
8.3.30.0140.00018.92
8.3.20.0050.00220.04
8.3.10.0060.00321.65
8.3.00.0050.00317.80
8.2.170.0180.00322.96
8.2.160.0140.00020.35
8.2.150.0070.00024.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0050.00321.02
8.2.110.0030.01422.06
8.2.100.0060.00617.72
8.2.90.0000.00719.27
8.2.80.0040.00417.97
8.2.70.0080.00017.63
8.2.60.0060.00317.93
8.2.50.0050.00318.07
8.2.40.0000.00718.16
8.2.30.0080.00018.11
8.2.20.0080.00017.74
8.2.10.0030.00518.05
8.2.00.0090.00019.52
8.1.270.0040.00423.83
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0100.00023.97
8.1.230.0030.00719.10
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0040.00817.23
8.1.190.0050.00317.23
8.1.180.0040.00418.10
8.1.170.0040.00418.60
8.1.160.0030.00521.91
8.1.150.0050.00318.82
8.1.140.0030.00517.45
8.1.130.0030.00317.72
8.1.120.0050.00317.48
8.1.110.0020.00517.50
8.1.100.0030.00617.33
8.1.90.0020.00517.43
8.1.80.0000.00817.45
8.1.70.0030.00317.37
8.1.60.0040.00417.63
8.1.50.0070.00017.43
8.1.40.0050.00217.52
8.1.30.0030.00517.64
8.1.20.0030.00517.62
8.1.10.0000.00717.47
8.1.00.0030.00517.39
8.0.300.0000.00818.77
8.0.290.0030.00316.75
8.0.280.0000.00718.49
8.0.270.0080.00017.27
8.0.260.0030.00317.18
8.0.250.0030.00316.93
8.0.240.0060.00316.98
8.0.230.0000.00716.91
8.0.220.0000.00716.82
8.0.210.0050.00216.90
8.0.200.0040.00416.95
8.0.190.0040.00416.84
8.0.180.0000.00716.80
8.0.170.0080.00016.92
8.0.160.0000.00816.89
8.0.150.0000.00716.81
8.0.140.0040.00416.83
8.0.130.0040.00413.26
8.0.120.0000.00816.72
8.0.110.0040.00416.92
8.0.100.0040.00416.86
8.0.90.0030.00316.84
8.0.80.0060.00916.82
8.0.70.0000.00816.74
8.0.60.0030.00516.94
8.0.50.0000.00716.75
8.0.30.0090.01117.25
8.0.20.0110.00817.40
8.0.10.0040.00417.01
8.0.00.0110.00616.73
7.4.330.0000.00515.00
7.4.320.0040.00416.41
7.4.300.0030.00316.57
7.4.290.0030.00316.39
7.4.280.0030.00616.51
7.4.270.0000.00616.44
7.4.260.0030.00316.49
7.4.250.0000.00716.44
7.4.240.0000.00716.49
7.4.230.0000.00716.39
7.4.220.0090.01316.66
7.4.210.0000.01416.51
7.4.200.0060.00316.39
7.4.160.0060.01516.55
7.4.150.0170.00017.40
7.4.140.0090.00917.86
7.4.130.0120.00416.41
7.4.120.0080.00816.55
7.4.110.0100.00716.38
7.4.100.0060.01016.36
7.4.90.0030.01316.48
7.4.80.0090.00919.39
7.4.70.0090.00916.58
7.4.60.0030.01516.57
7.4.50.0050.00016.57
7.4.40.0110.00616.42
7.4.30.0080.00816.46
7.4.00.0140.00314.95
7.3.330.0000.00713.09
7.3.320.0000.00513.14
7.3.310.0070.00016.30
7.3.300.0040.00316.30
7.3.290.0060.01016.22
7.3.280.0100.00816.23
7.3.270.0030.01517.40
7.3.260.0120.00816.32
7.3.250.0120.00516.35
7.3.240.0090.00916.45
7.3.230.0100.00616.53
7.3.210.0000.02016.41
7.3.200.0060.01519.39
7.3.190.0070.01016.55
7.3.180.0090.00616.14
7.3.170.0070.01016.45
7.3.160.0090.00616.26
7.3.120.0090.00614.81
7.3.10.0200.00316.33
7.3.00.0150.00516.14
7.2.330.0160.00316.63
7.2.320.0030.01316.38
7.2.310.0170.00316.75
7.2.300.0090.00916.79
7.2.290.0130.01016.45
7.2.130.0080.00816.21
7.2.120.0170.00716.47
7.2.110.0120.01016.29
7.2.100.0100.01016.56
7.2.90.0160.00516.48
7.2.80.0110.00816.53
7.2.70.0110.00616.65
7.2.60.0140.00616.35
7.2.50.0150.00516.59
7.2.40.0140.00916.45
7.2.30.0080.01116.39
7.2.20.0180.00516.38
7.2.10.0100.00916.28
7.2.00.0070.01117.67
7.1.250.0120.00715.41
7.1.100.0070.00718.08
7.1.70.0120.00916.97
7.1.60.0030.02119.70
7.1.50.0100.01316.56
7.1.00.0000.08022.32
7.0.200.0030.01316.77
7.0.140.0030.07022.13
7.0.60.0000.06019.89
7.0.50.0030.07317.90
7.0.40.0130.04719.90
7.0.30.0370.07320.01
7.0.20.0130.04020.09
7.0.10.0030.04720.33
7.0.00.0070.04720.16
5.6.280.0000.07721.03
5.6.210.0100.06320.46
5.6.200.0100.06318.22
5.6.190.0070.08320.29
5.6.180.0230.05020.45
5.6.170.0200.06020.45
5.6.160.0070.06720.61
5.6.150.0100.08018.22
5.6.140.0130.04018.16
5.6.130.0130.03018.09
5.6.120.0070.06020.99
5.6.110.0200.07720.99
5.6.100.0030.06720.96
5.6.90.0070.05020.95
5.6.80.0070.04320.28
5.5.350.0330.07020.40
5.5.340.0100.07317.92
5.5.330.0000.05020.25
5.5.320.0370.06720.24
5.5.310.0200.04720.17
5.5.300.0100.04017.91
5.5.290.0070.07017.89
5.5.280.0030.05020.79
5.5.270.0100.04720.75
5.5.260.0070.04320.79
5.5.250.0100.08320.61
5.5.240.0070.04320.26
5.4.450.0530.06019.48
5.4.440.1100.05319.45
5.4.430.0970.06319.62
5.4.420.0800.06019.09
5.4.410.0070.05718.93
5.4.400.0300.06318.76
5.4.390.0270.06318.68
5.4.380.0270.05718.52
5.4.370.0030.04318.62
5.4.360.0070.03718.50
5.4.350.0090.04511.97
5.4.340.0080.03911.97
5.4.320.0050.03612.45
5.4.310.0100.03312.45
5.4.300.0060.03612.46
5.4.290.0040.03912.45
5.4.280.0060.03412.35
5.4.270.0060.05112.35
5.4.260.0060.03712.34
5.4.250.0060.04012.34
5.4.240.0040.03812.35
5.4.230.0070.03512.34
5.4.220.0050.03712.34
5.4.210.0060.03412.34
5.4.200.0050.04212.34
5.4.190.0070.03612.33
5.4.180.0060.03512.33
5.4.170.0090.03812.35
5.4.160.0060.03612.34
5.4.150.0060.03612.34
5.4.140.0050.03712.02
5.4.130.0050.03612.01
5.4.120.0050.03811.97
5.4.110.0070.03511.96
5.4.100.0030.03811.96
5.4.90.0070.03611.97
5.4.80.0060.03711.96
5.4.70.0060.03611.96
5.4.60.0060.03511.96
5.4.50.0050.03611.96
5.4.40.0050.03411.95
5.4.30.0030.03811.95
5.4.20.0060.03511.95
5.4.10.0050.03411.95
5.4.00.0050.03611.43
5.3.290.0040.03912.80
5.3.280.0100.03212.71
5.3.270.0080.03812.73
5.3.260.0060.03812.72
5.3.250.0090.03312.72
5.3.240.0070.03512.72
5.3.230.0050.03812.70
5.3.220.0090.04412.68
5.3.210.0040.05212.68
5.3.200.0070.04312.68
5.3.190.0100.03312.68
5.3.180.0030.03812.68
5.3.170.0050.03712.67
5.3.160.0050.03712.68
5.3.150.0060.03612.67
5.3.140.0060.03512.66
5.3.130.0100.03312.66
5.3.120.0040.04112.66
5.3.110.0050.04612.66
5.3.100.0030.03912.12
5.3.90.0050.03812.08
5.3.80.0070.03512.08
5.3.70.0060.03612.08
5.3.60.0040.04012.07
5.3.50.0050.03712.00
5.3.40.0060.03612.00
5.3.30.0040.03711.94
5.3.20.0040.03711.72
5.3.10.0090.03111.69
5.3.00.0060.03511.68
5.2.170.0030.0319.18
5.2.160.0030.0319.18
5.2.150.0040.0349.18
5.2.140.0110.0259.17
5.2.130.0030.0379.14
5.2.120.0050.0279.14
5.2.110.0040.0299.14
5.2.100.0040.0289.13
5.2.90.0030.0299.14
5.2.80.0060.0289.13
5.2.70.0030.0329.13
5.2.60.0040.0309.08
5.2.50.0090.0339.05
5.2.40.0030.0309.03
5.2.30.0040.0309.00
5.2.20.0040.0309.00
5.2.10.0040.0298.91
5.2.00.0040.0308.77
5.1.60.0030.0258.06
5.1.50.0040.0258.06
5.1.40.0050.0238.04
5.1.30.0030.0278.39
5.1.20.0020.0288.41
5.1.10.0070.0228.13
5.1.00.0080.0228.14
5.0.50.0070.0196.61
5.0.40.0060.0186.47
5.0.30.0030.0336.28
5.0.20.0030.0226.25
5.0.10.0040.0246.23
5.0.00.0040.0336.22
4.4.90.0030.0154.78
4.4.80.0020.0174.75
4.4.70.0040.0154.75
4.4.60.0040.0144.75
4.4.50.0050.0154.77
4.4.40.0040.0244.71
4.4.30.0020.0184.76
4.4.20.0040.0184.85
4.4.10.0020.0214.85
4.4.00.0040.0254.76
4.3.110.0030.0174.67
4.3.100.0030.0154.66
4.3.90.0010.0174.64
4.3.80.0030.0264.58
4.3.70.0050.0144.63
4.3.60.0020.0194.63
4.3.50.0040.0144.63
4.3.40.0030.0254.54
4.3.30.0020.0183.27
4.3.20.0010.0173.25
4.3.10.0010.0173.21
4.3.00.0100.0237.12

preferences:
38.07 ms | 400 KiB | 5 Q