3v4l.org

run code in 300+ PHP versions simultaneously
<?php class x { function y() { function z(){ echo 'Hello world'; } } } $x = new x; var_dump(function_exists('z')); $x->y(); var_dump(function_exists('z'), z());

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)
8.3.60.0100.00718.43
8.3.50.0180.00522.06
8.3.40.0070.00718.41
8.3.30.0070.00718.96
8.3.20.0040.00420.39
8.3.10.0060.00320.22
8.3.00.0040.00417.38
8.2.180.0140.00316.63
8.2.170.0120.00322.96
8.2.160.0140.00320.35
8.2.150.0070.00024.18
8.2.140.0030.00524.66
8.2.130.0040.00426.16
8.2.120.0030.00622.17
8.2.110.0140.00320.58
8.2.100.0080.00318.03
8.2.90.0000.00819.05
8.2.80.0040.00417.97
8.2.70.0080.00017.50
8.2.60.0030.00618.04
8.2.50.0050.00518.07
8.2.40.0000.00818.20
8.2.30.0040.00419.29
8.2.20.0040.00417.50
8.2.10.0000.00717.98
8.2.00.0040.00417.66
8.1.280.0120.00325.92
8.1.270.0040.00424.01
8.1.260.0040.00426.35
8.1.250.0060.00328.09
8.1.240.0070.00323.94
8.1.230.0060.00619.00
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0080.00417.13
8.1.190.0030.00517.36
8.1.180.0040.00418.10
8.1.170.0050.00318.73
8.1.160.0070.00022.01
8.1.150.0070.00018.95
8.1.140.0050.00217.50
8.1.130.0000.00717.80
8.1.120.0050.00217.36
8.1.110.0040.00417.44
8.1.100.0030.00517.45
8.1.90.0070.00017.52
8.1.80.0030.00417.43
8.1.70.0030.00317.39
8.1.60.0060.00317.61
8.1.50.0030.00617.41
8.1.40.0040.00417.39
8.1.30.0000.00817.63
8.1.20.0040.00417.53
8.1.10.0080.00017.47
8.1.00.0030.00617.55
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0000.00718.33
8.0.270.0000.00717.13
8.0.260.0000.00717.18
8.0.250.0070.00016.98
8.0.240.0030.00516.96
8.0.230.0000.00716.86
8.0.220.0070.00016.91
8.0.210.0040.00416.91
8.0.200.0000.00716.99
8.0.190.0030.00316.96
8.0.180.0000.00716.80
8.0.170.0000.00716.91
8.0.160.0040.00416.93
8.0.150.0000.00816.76
8.0.140.0070.00016.85
8.0.130.0000.00513.29
8.0.120.0000.00816.76
8.0.110.0050.00216.79
8.0.100.0040.00416.84
8.0.90.0040.00416.69
8.0.80.0130.00316.91
8.0.70.0000.00816.75
8.0.60.0000.00816.82
8.0.50.0000.00716.78
8.0.30.0100.00817.17
8.0.20.0090.01117.40
8.0.10.0040.00417.01
8.0.00.0150.00616.82
7.4.330.0000.00515.02
7.4.320.0000.00716.51
7.4.300.0000.00616.59
7.4.290.0040.00416.49
7.4.280.0040.00416.60
7.4.270.0070.00016.45
7.4.260.0030.00316.59
7.4.250.0020.00516.46
7.4.240.0030.00516.54
7.4.230.0070.00016.66
7.4.220.0100.01016.54
7.4.210.0070.00716.54
7.4.200.0070.00016.41
7.4.160.0000.01716.27
7.4.150.0070.01217.40
7.4.140.0080.01317.86
7.4.130.0080.01316.29
7.4.120.0080.01216.53
7.4.110.0110.00516.50
7.4.100.0030.01316.44
7.4.90.0160.00716.29
7.4.80.0100.00619.37
7.4.70.0070.01016.59
7.4.60.0100.00616.50
7.4.50.0020.00216.31
7.4.40.0110.00616.40
7.4.30.0060.00916.52
7.4.00.0070.01015.23
7.3.330.0050.00013.31
7.3.320.0020.00213.13
7.3.310.0030.00316.15
7.3.300.0000.00716.18
7.3.290.0130.00316.30
7.3.280.0070.01016.30
7.3.270.0060.01217.40
7.3.260.0180.00016.46
7.3.250.0050.01416.51
7.3.240.0040.01116.51
7.3.230.0070.01116.57
7.3.210.0150.00316.38
7.3.200.0130.01019.39
7.3.190.0110.00816.32
7.3.180.0090.00916.35
7.3.170.0180.00616.27
7.3.160.0070.01016.24
7.3.10.0100.00316.65
7.3.00.0070.00716.64
7.2.330.0110.01116.25
7.2.320.0060.01216.75
7.2.310.0030.01416.90
7.2.300.0130.00316.73
7.2.290.0100.00716.38
7.2.130.0030.00716.89
7.2.120.0050.00816.75
7.2.110.0030.01016.67
7.2.100.0040.00716.91
7.2.90.0090.00616.95
7.2.80.0050.00716.63
7.2.70.0040.00416.81
7.2.60.0090.00316.72
7.2.50.0060.01017.07
7.2.40.0050.00317.02
7.2.30.0110.00416.96
7.2.20.0070.00716.85
7.2.10.0070.00416.95
7.2.00.0070.00716.91
7.1.250.0000.00915.71
7.1.200.0160.00515.69
7.1.100.0030.01018.09
7.1.70.0030.00717.03
7.1.60.0070.01719.32
7.1.50.0040.01416.56
7.1.00.0070.07022.40
7.0.200.0030.00616.38
7.0.140.0030.07321.98
7.0.60.0030.06720.02
7.0.50.0130.07717.88
7.0.40.0130.08020.30
7.0.30.0470.07020.24
7.0.20.0300.03320.06
7.0.10.0100.07720.22
7.0.00.0070.09320.24
5.6.280.0030.07320.91
5.6.210.0200.07720.61
5.6.200.0100.04018.29
5.6.190.0070.06020.56
5.6.180.0300.06720.49
5.6.170.0330.03720.47
5.6.160.0030.05320.44
5.6.150.0070.08018.16
5.6.140.0030.05718.24
5.6.130.0070.04018.23
5.6.120.0000.05320.77
5.6.110.0130.08721.08
5.6.100.0070.06020.97
5.6.90.0130.06721.11
5.6.80.0170.07020.41
5.5.350.0100.03320.40
5.5.340.0070.04017.99
5.5.330.0100.07720.37
5.5.320.0330.06020.20
5.5.310.0300.06720.25
5.5.300.0000.07017.98
5.5.290.0030.09017.94
5.5.280.0070.07720.78
5.5.270.0030.08020.84
5.5.260.0000.05320.87
5.5.250.0070.08020.69
5.5.240.0200.07020.34
5.4.450.0200.03319.55
5.4.440.1070.05319.48
5.4.430.0870.06319.54
5.4.420.0630.00019.63
5.4.410.0670.00019.57
5.4.400.0670.00019.28
5.4.390.0630.00019.16
5.4.380.0370.05718.79
5.4.370.0370.06718.46
5.4.360.0230.05718.48
5.4.350.0230.06318.77
5.4.340.0370.05018.79
5.4.320.0100.03312.51
5.4.310.0060.03912.50
5.4.300.0040.03912.51
5.4.290.0050.03812.50
5.4.280.0050.03612.40
5.4.270.0080.03412.40
5.4.260.0080.03612.40
5.4.250.0050.03912.40
5.4.240.0060.03612.40
5.4.230.0040.03912.39
5.4.220.0070.03412.39
5.4.210.0070.03412.39
5.4.200.0080.04312.39
5.4.190.0080.03412.39
5.4.180.0030.03912.38
5.4.170.0030.04012.40
5.4.160.0090.03312.39
5.4.150.0100.03312.39
5.4.140.0050.03812.07
5.4.130.0050.03512.06
5.4.120.0060.03412.02
5.4.110.0060.03712.02
5.4.100.0060.03512.02
5.4.90.0030.04512.02
5.4.80.0060.04512.02
5.4.70.0040.03712.01
5.4.60.0060.04812.02
5.4.50.0050.03612.02
5.4.40.0050.03512.00
5.4.30.0050.03611.99
5.4.20.0030.03811.99
5.4.10.0030.03712.00
5.4.00.0040.03711.49
5.3.290.0080.04212.80
5.3.280.0080.03912.71
5.3.270.0050.04412.72
5.3.260.0050.03912.72
5.3.250.0040.03912.71
5.3.240.0090.03412.72
5.3.230.0080.04112.71
5.3.220.0060.03612.68
5.3.210.0040.04312.68
5.3.200.0060.03812.68
5.3.190.0050.03912.68
5.3.180.0080.03412.67
5.3.170.0100.03812.67
5.3.160.0060.03812.67
5.3.150.0060.03712.67
5.3.140.0070.03412.66
5.3.130.0090.03512.65
5.3.120.0080.03612.66
5.3.110.0050.04812.66
5.3.100.0050.03812.12
5.3.90.0060.03712.10
5.3.80.0040.03812.10
5.3.70.0050.03712.10
5.3.60.0060.03512.07
5.3.50.0060.03512.03
5.3.40.0050.03712.03
5.3.30.0040.03611.98
5.3.20.0030.03811.77
5.3.10.0030.04611.73
5.3.00.0060.03511.72
5.2.170.0060.0299.23
5.2.160.0030.0309.22
5.2.150.0040.0309.22
5.2.140.0050.0309.22
5.2.130.0050.0289.18
5.2.120.0070.0289.18
5.2.110.0040.0359.19
5.2.100.0030.0299.18
5.2.90.0020.0329.18
5.2.80.0000.0349.18
5.2.70.0030.0369.18
5.2.60.0060.0289.13
5.2.50.0040.0309.10
5.2.40.0060.0279.07
5.2.30.0040.0309.05
5.2.20.0040.0329.04
5.2.10.0020.0308.94
5.2.00.0020.0318.80
5.1.60.0050.0238.09
5.1.50.0060.0228.09
5.1.40.0030.0258.07
5.1.30.0060.0238.41
5.1.20.0030.0288.44
5.1.10.0030.0268.17
5.1.00.0050.0258.16
5.0.50.0020.0226.64
5.0.40.0020.0206.51
5.0.30.0030.0326.32
5.0.20.0040.0226.29
5.0.10.0060.0226.26
5.0.00.0040.0326.25
4.4.90.0020.0164.78
4.4.80.0020.0154.75
4.4.70.0000.0184.75
4.4.60.0020.0164.75
4.4.50.0010.0184.77
4.4.40.0030.0294.70
4.4.30.0030.0214.76
4.4.20.0020.0154.84
4.4.10.0020.0184.85
4.4.00.0030.0244.76
4.3.110.0010.0174.66
4.3.100.0030.0154.66
4.3.90.0030.0184.64
4.3.80.0030.0284.58
4.3.70.0010.0174.63
4.3.60.0050.0124.63
4.3.50.0030.0154.63
4.3.40.0010.0254.54
4.3.30.0010.0163.30
4.3.20.0020.0193.28
4.3.10.0020.0193.24
4.3.00.0000.03014.30

preferences:
32.88 ms | 401 KiB | 5 Q