3v4l.org

run code in 300+ PHP versions simultaneously
<?php $vars = get_defined_vars(); $mystring = null; $vars = @array_diff(get_defined_vars(),$vars); echo '<pre>'; print_r($vars); echo '</pre>';

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)
8.3.60.0140.00016.63
8.3.50.0190.01021.87
8.3.40.0110.00318.85
8.3.30.0100.01018.92
8.3.20.0040.00420.33
8.3.10.0000.00721.71
8.3.00.0080.00019.25
8.2.180.0110.00718.14
8.2.170.0110.00422.96
8.2.160.0030.01020.52
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0070.00022.19
8.2.110.0060.00320.52
8.2.100.0040.00817.91
8.2.90.0080.00019.11
8.2.80.0040.00417.97
8.2.70.0000.00917.50
8.2.60.0040.00718.05
8.2.50.0060.00618.07
8.2.40.0030.00519.94
8.2.30.0070.00017.94
8.2.20.0040.00417.66
8.2.10.0030.00518.04
8.2.00.0040.00417.73
8.1.280.0140.00325.92
8.1.270.0060.00923.96
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0040.00422.25
8.1.230.0100.00017.42
8.1.220.0050.00317.74
8.1.210.0060.00318.77
8.1.200.0090.00017.38
8.1.190.0060.00317.23
8.1.180.0070.00018.10
8.1.170.0060.00318.63
8.1.160.0050.00222.05
8.1.150.0080.00318.50
8.1.140.0050.00517.43
8.1.130.0000.00617.76
8.1.120.0040.00417.37
8.1.110.0080.00017.52
8.1.100.0040.00417.43
8.1.90.0040.00417.43
8.1.80.0040.00417.45
8.1.70.0070.00017.33
8.1.60.0080.00317.27
8.1.50.0040.00417.50
8.1.40.0000.00817.50
8.1.30.0040.00417.54
8.1.20.0000.00717.58
8.1.10.0030.00617.39
8.1.00.0070.00017.44
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0000.00718.49
8.0.270.0030.00317.18
8.0.260.0030.00317.13
8.0.250.0030.00317.04
8.0.240.0030.00316.95
8.0.230.0070.00017.01
8.0.220.0030.00316.91
8.0.210.0030.00316.84
8.0.200.0060.00017.02
8.0.190.0080.00017.04
8.0.180.0000.00717.03
8.0.170.0000.00716.95
8.0.160.0000.00716.86
8.0.150.0000.00716.92
8.0.140.0000.00716.84
8.0.130.0000.00613.44
8.0.120.0000.00816.94
8.0.110.0030.00516.87
8.0.100.0050.00316.76
8.0.90.0000.00717.01
8.0.80.0100.00616.84
8.0.70.0000.00716.79
8.0.60.0070.00016.80
8.0.50.0070.00016.96
8.0.30.0110.00716.93
8.0.20.0090.00917.40
8.0.10.0000.00717.10
8.0.00.0110.00716.88
7.4.330.0050.00015.10
7.4.320.0070.00016.56
7.4.300.0000.00616.59
7.4.290.0070.00016.48
7.4.280.0000.00716.58
7.4.270.0000.00716.49
7.4.260.0030.00316.57
7.4.250.0000.00816.56
7.4.240.0020.00516.55
7.4.230.0070.00016.71
7.4.220.0130.00616.60
7.4.210.0100.00816.57
7.4.200.0040.00416.65
7.4.190.0000.00716.73
7.4.160.0080.00816.41
7.4.150.0090.00917.40
7.4.140.0120.00717.86
7.4.130.0080.01016.57
7.4.120.0090.01116.49
7.4.110.0090.00916.41
7.4.100.0140.00316.45
7.4.90.0070.01016.26
7.4.80.0100.00819.39
7.4.70.0110.01116.68
7.4.60.0110.00616.27
7.4.50.0050.00016.26
7.4.40.0060.00916.56
7.4.30.0110.00716.71
7.4.00.0060.00914.86
7.3.330.0030.00312.95
7.3.320.0030.00312.99
7.3.310.0070.00016.32
7.3.300.0030.00316.05
7.3.290.0090.00616.20
7.3.280.0090.00816.20
7.3.270.0170.00017.40
7.3.260.0130.00316.34
7.3.250.0130.00516.23
7.3.240.0110.00616.43
7.3.230.0150.00716.45
7.3.210.0030.01416.27
7.3.200.0070.01119.39
7.3.190.0160.00316.27
7.3.180.0140.00316.25
7.3.170.0130.00316.27
7.3.160.0150.00016.25
7.3.120.0000.01214.82
7.2.330.0110.01116.50
7.2.320.0140.01116.63
7.2.310.0100.00616.58
7.2.300.0130.00316.51
7.2.290.0070.01016.50
7.2.00.0000.01219.35
7.1.100.0070.00417.93
7.1.70.0000.01017.13
7.1.60.0110.00719.46
7.1.50.0220.00634.67
7.1.00.0000.07322.29
7.0.200.0000.00716.86
7.0.140.0030.07322.09
7.0.60.0300.06019.91
7.0.50.0100.07317.87
7.0.40.0030.04320.04
7.0.30.0400.07020.09
7.0.20.0270.08020.13
7.0.10.0170.06720.09
7.0.00.0170.07320.17
5.6.280.0100.06321.02
5.6.210.0070.08320.66
5.6.200.0070.08018.13
5.6.190.0070.06720.66
5.6.180.0130.06320.43
5.6.170.0370.07020.49
5.6.160.0070.06320.50
5.6.150.0070.04018.11
5.6.140.0070.07018.23
5.6.130.0070.03718.21
5.6.120.0070.03720.95
5.6.110.0200.06721.09
5.6.100.0170.05320.97
5.6.90.0100.08020.94
5.6.80.0070.08320.50
5.5.350.3770.05320.31
5.5.340.0070.06717.89
5.5.330.0030.08320.40
5.5.320.0300.07020.34
5.5.310.0330.06320.29
5.5.300.0070.08018.02
5.5.290.0000.08018.01
5.5.280.0130.07320.65
5.5.270.0130.04020.86
5.5.260.0030.08020.86
5.5.250.0000.05720.63
5.5.240.0070.05020.26
5.4.450.0600.06319.52
5.4.440.0700.07019.63
5.4.430.0770.05019.09
5.4.420.0570.05019.61
5.4.410.0530.06019.00
5.4.400.0730.05319.23
5.4.390.0700.05718.80
5.4.380.0400.05018.68
5.4.370.0370.05018.61
5.4.360.0300.05318.49
5.4.350.0200.05718.59
5.4.340.0270.05318.72
5.4.320.0080.03812.45
5.4.310.0090.03712.45
5.4.300.0120.03712.45
5.4.290.0080.04312.45
5.4.280.0060.03912.35
5.4.270.0080.03712.34
5.4.260.0050.03912.35
5.4.250.0070.03812.34
5.4.240.0100.03612.35
5.4.230.0030.04312.34
5.4.220.0080.04012.34
5.4.210.0100.03912.34
5.4.200.0040.04512.34
5.4.190.0060.04112.34
5.4.180.0060.04212.33
5.4.170.0050.04112.34
5.4.160.0070.03712.34
5.4.150.0070.04012.34
5.4.140.0090.04012.02
5.4.130.0110.04112.01
5.4.120.0070.04411.97
5.4.110.0090.05211.96
5.4.100.0060.03811.96
5.4.90.0090.03911.96
5.4.80.0110.04611.96
5.4.70.0080.04511.96
5.4.60.0070.04111.96
5.4.50.0060.04411.96
5.4.40.0120.04511.95
5.4.30.0160.05011.95
5.4.20.0090.05111.95
5.4.10.0090.04811.95
5.4.00.0080.04911.44
5.3.290.0080.04312.80
5.3.280.0080.04812.71
5.3.270.0050.05512.73
5.3.260.0120.05112.72
5.3.250.0040.05412.72
5.3.240.0130.04712.72
5.3.230.0070.04912.71
5.3.220.0130.04512.68
5.3.210.0080.05312.68
5.3.200.0080.05112.68
5.3.190.0070.05112.68
5.3.180.0060.05212.67
5.3.170.0080.05212.67
5.3.160.0070.05012.68
5.3.150.0120.04712.67
5.3.140.0060.05112.66
5.3.130.0110.05112.65
5.3.120.0110.04912.65
5.3.110.0080.07112.66
5.3.100.0100.07612.12
5.3.90.0130.04712.08
5.3.80.0130.04312.08
5.3.70.0040.05112.07
5.3.60.0090.04712.07
5.3.50.0090.04212.00
5.3.40.0080.04012.00
5.3.30.0040.04011.94
5.3.20.0060.03511.72
5.3.10.0080.03311.69
5.3.00.0060.03711.68
5.2.170.0100.0269.18
5.2.160.0080.0339.18
5.2.150.0060.0389.18
5.2.140.0020.0409.18
5.2.130.0050.0299.14
5.2.120.0050.0279.14
5.2.110.0040.0309.14
5.2.100.0100.0269.14
5.2.90.0060.0299.14
5.2.80.0040.0369.14
5.2.70.0050.0319.14
5.2.60.0050.0339.09
5.2.50.0020.0329.05
5.2.40.0040.0299.04
5.2.30.0040.0309.01
5.2.20.0050.0289.00
5.2.10.0030.0308.93
5.2.00.0060.0278.79
5.1.60.0080.0238.08
5.1.50.0060.0358.08
5.1.40.0070.0278.05
5.1.30.0070.0378.41
5.1.20.0040.0338.43
5.1.10.0020.0298.15
5.1.00.0040.0268.16
5.0.50.0040.0206.63
5.0.40.0040.0196.50
5.0.30.0030.0316.30
5.0.20.0030.0206.27
5.0.10.0040.0226.25
5.0.00.0040.0386.25
4.4.90.0040.0134.78
4.4.80.0020.0154.75
4.4.70.0020.0164.76
4.4.60.0040.0154.76
4.4.50.0040.0144.77
4.4.40.0030.0254.71
4.4.30.0040.0154.76
4.4.20.0030.0154.84
4.4.10.0030.0174.84
4.4.00.0060.0264.76
4.3.110.0030.0164.67
4.3.100.0040.0164.67
4.3.90.0040.0144.63
4.3.80.0040.0264.59
4.3.70.0050.0144.63
4.3.60.0030.0164.63
4.3.50.0030.0174.63
4.3.40.0020.0274.54
4.3.30.0020.0163.29
4.3.20.0020.0233.27
4.3.10.0020.0223.23
4.3.00.0070.0239.42

preferences:
43.04 ms | 401 KiB | 5 Q