3v4l.org

run code in 300+ PHP versions simultaneously
<?php function a () { static $a = 0; function b() { static $b = 0; echo "I am ".__FUNCTION__.". I have been called ".$b++." times\n"; } echo "I am ".__FUNCTION__.". I have been called ".$a++." times\n"; } echo function_exists("b") ? "b is defined\n" : "b is not defined\n"; a(); echo function_exists("b") ? "b is defined\n" : "b is not defined\n"; b(); a(); echo function_exists("b") ? "b is defined\n" : "b is not defined\n";

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)
8.3.60.0060.00916.75
8.3.50.0100.00721.93
8.3.40.0000.01518.88
8.3.30.0210.00019.01
8.3.20.0080.00020.33
8.3.10.0000.00721.85
8.3.00.0090.00017.91
8.2.180.0100.00318.54
8.2.170.0070.00722.96
8.2.160.0100.00322.26
8.2.150.0000.00724.18
8.2.140.0050.00324.66
8.2.130.0150.00326.16
8.2.120.0040.00421.02
8.2.110.0060.00322.33
8.2.100.0100.00317.91
8.2.90.0050.00319.12
8.2.80.0000.00817.97
8.2.70.0090.00017.63
8.2.60.0000.00717.80
8.2.50.0000.00818.07
8.2.40.0060.00318.16
8.2.30.0060.00318.04
8.2.20.0000.00817.80
8.2.10.0080.00017.98
8.2.00.0000.00817.73
8.1.280.0100.01025.92
8.1.270.0030.00623.92
8.1.260.0030.00626.35
8.1.250.0060.01028.09
8.1.240.0000.00923.80
8.1.230.0030.00719.16
8.1.220.0040.00417.78
8.1.210.0060.00318.77
8.1.200.0060.00317.25
8.1.190.0040.00417.23
8.1.180.0080.00018.10
8.1.170.0040.00418.53
8.1.160.0040.00422.00
8.1.150.0070.00018.97
8.1.140.0050.00317.49
8.1.130.0000.00717.69
8.1.120.0050.00217.46
8.1.110.0000.00717.49
8.1.100.0000.00717.46
8.1.90.0030.00717.45
8.1.80.0070.00017.49
8.1.70.0000.00717.39
8.1.60.0030.00617.56
8.1.50.0030.00617.54
8.1.40.0040.00417.43
8.1.30.0040.00417.64
8.1.20.0000.00817.61
8.1.10.0050.00317.56
8.1.00.0040.00417.39
8.0.300.0040.00418.90
8.0.290.0000.00816.75
8.0.280.0040.00418.48
8.0.270.0070.00017.16
8.0.260.0060.00018.43
8.0.250.0070.00017.01
8.0.240.0030.00316.88
8.0.230.0070.00017.00
8.0.220.0030.00316.94
8.0.210.0030.00316.80
8.0.200.0000.00817.02
8.0.190.0070.00017.02
8.0.180.0040.00416.98
8.0.170.0000.00716.84
8.0.160.0030.00316.89
8.0.150.0040.00416.89
8.0.140.0000.00816.86
8.0.130.0040.00413.46
8.0.120.0040.00416.82
8.0.110.0040.00416.89
8.0.100.0030.00516.89
8.0.90.0000.00816.79
8.0.80.0090.00616.89
8.0.70.0040.00416.81
8.0.60.0000.00816.74
8.0.50.0020.00516.73
8.0.30.0090.01416.98
8.0.20.0070.01117.40
8.0.10.0060.00316.97
8.0.00.0090.00916.84
7.4.330.0030.00315.00
7.4.320.0000.00616.66
7.4.300.0000.00616.47
7.4.290.0070.00016.60
7.4.280.0070.00016.55
7.4.270.0030.00316.52
7.4.260.0000.00716.57
7.4.250.0040.00416.45
7.4.240.0040.00416.52
7.4.230.0030.00316.53
7.4.220.0110.00716.61
7.4.210.0030.01316.59
7.4.200.0040.00416.70
7.4.160.0000.01616.84
7.4.150.0170.00017.40
7.4.140.0100.00817.86
7.4.130.0070.01116.46
7.4.120.0100.00916.46
7.4.110.0060.01116.55
7.4.100.0140.00316.64
7.4.90.0070.01116.39
7.4.80.0060.01219.39
7.4.70.0040.01216.48
7.4.60.0110.00516.39
7.4.50.0000.00816.57
7.4.40.0100.00716.53
7.4.30.0030.01216.46
7.4.00.0030.01515.03
7.3.330.0000.00613.29
7.3.320.0000.00513.17
7.3.310.0030.00316.34
7.3.300.0000.00716.19
7.3.290.0070.00716.30
7.3.280.0090.01116.29
7.3.270.0110.00617.40
7.3.260.0140.00316.30
7.3.240.0120.00916.43
7.3.230.0030.01316.44
7.3.210.0160.00316.50
7.3.200.0170.00019.39
7.3.190.0040.01316.49
7.3.180.0090.00616.36
7.3.170.0080.00816.57
7.3.160.0050.01116.39
7.3.120.0040.01214.61
7.3.110.0080.00814.85
7.3.100.0060.00714.85
7.3.90.0070.00614.74
7.3.80.0050.00414.94
7.3.70.0060.00814.76
7.3.60.0050.00814.74
7.3.50.0080.00714.78
7.3.40.0060.01214.61
7.3.30.0070.00914.72
7.3.20.0090.00616.68
7.3.10.0060.00716.71
7.3.00.0060.00916.43
7.2.330.0100.00716.67
7.2.320.0060.00916.71
7.2.310.0070.01016.63
7.2.300.0140.00316.32
7.2.290.0060.01116.70
7.2.250.0150.00614.83
7.2.240.0080.00714.76
7.2.230.0060.00914.95
7.2.220.0080.00315.06
7.2.210.0110.00514.73
7.2.200.0020.01214.90
7.2.190.0040.00714.91
7.2.180.0110.00215.04
7.2.170.0050.01315.02
7.2.160.0030.01014.88
7.2.150.0100.00316.91
7.2.140.0070.00716.63
7.2.130.0100.00116.94
7.2.120.0030.01116.73
7.2.110.0050.01016.66
7.2.100.0070.00716.71
7.2.90.0090.00616.88
7.2.80.0050.00816.89
7.2.70.0060.00816.94
7.2.60.0060.00716.91
7.2.50.0090.00616.81
7.2.40.0070.00516.89
7.2.30.0030.01116.81
7.2.20.0050.00916.92
7.2.10.0140.00516.79
7.2.00.0140.00517.56
7.1.330.0050.00815.76
7.1.320.0050.01015.77
7.1.310.0000.01315.70
7.1.300.0090.00715.58
7.1.290.0070.00415.52
7.1.280.0030.01115.76
7.1.270.0030.01015.69
7.1.260.0110.00515.60
7.1.250.0050.00615.55
7.1.200.0030.01015.91
7.1.100.0040.01118.25
7.1.70.0030.00317.01
7.1.60.0090.01219.25
7.1.50.0060.01016.87
7.1.00.0070.07322.36
7.0.200.0000.01016.80
7.0.140.0000.07322.05
7.0.60.0100.06319.87
7.0.50.0030.05317.80
7.0.40.0030.09720.24
7.0.30.0470.03320.23
7.0.20.0330.06020.33
7.0.10.0000.05020.33
7.0.00.0070.07720.07
5.6.280.0030.07020.92
5.6.210.0000.04320.70
5.6.200.0030.04018.19
5.6.190.0030.05020.48
5.6.180.0270.05720.52
5.6.170.0300.06020.39
5.6.160.0100.07020.45
5.6.150.0030.07718.17
5.6.140.0200.06718.27
5.6.130.0130.03018.19
5.6.120.0000.06321.04
5.6.110.0030.05321.02
5.6.100.0030.04321.15
5.6.90.0100.04020.95
5.6.80.0370.06020.51
5.6.70.2300.04320.36
5.5.350.0170.07720.39
5.5.340.0030.04017.99
5.5.330.0070.07020.13
5.5.320.0170.04320.27
5.5.310.0130.04320.37
5.5.300.0130.07718.09
5.5.290.0070.07017.98
5.5.280.0070.08020.74
5.5.270.0200.08020.96
5.5.260.0030.06020.68
5.5.250.0270.07020.59
5.5.240.0200.07720.04
5.4.450.0730.06319.18
5.4.440.0930.04319.50
5.4.430.0570.05719.48
5.4.420.0770.05019.48
5.4.410.0530.06019.32
5.4.400.0730.06019.32
5.4.390.0800.06319.17
5.4.380.0170.05018.43
5.4.370.0070.05018.56
5.4.360.0100.05018.61
5.4.350.0060.04612.02
5.4.340.0070.04212.02
5.4.320.0050.03712.51
5.4.310.0100.03412.51
5.4.300.0040.04012.51
5.4.290.0020.04212.50
5.4.280.0080.03412.40
5.4.270.0050.04012.41
5.4.260.0060.03912.40
5.4.250.0060.03812.40
5.4.240.0050.03712.40
5.4.230.0090.04012.39
5.4.220.0020.04112.40
5.4.210.0100.03412.39
5.4.200.0090.04012.39
5.4.190.0070.03712.39
5.4.180.0050.03712.39
5.4.170.0080.03712.40
5.4.160.0040.03812.39
5.4.150.0030.04112.39
5.4.140.0050.03812.07
5.4.130.0040.03712.07
5.4.120.0060.03612.02
5.4.110.0060.03612.01
5.4.100.0040.03812.02
5.4.90.0090.03912.01
5.4.80.0070.04612.02
5.4.70.0050.04312.01
5.4.60.0070.03712.01
5.4.50.0060.03512.01
5.4.40.0040.03612.00
5.4.30.0050.03612.00
5.4.20.0050.03612.00
5.4.10.0050.03512.00
5.4.00.0040.04311.49
5.3.290.0070.03812.80
5.3.280.0070.03712.71
5.3.270.0070.03812.72
5.3.260.0070.04312.72
5.3.250.0030.04012.72
5.3.240.0040.03812.72
5.3.230.0060.03812.71
5.3.220.0080.03912.68
5.3.210.0070.03912.68
5.3.200.0060.03612.68
5.3.190.0080.03512.68
5.3.180.0060.03712.68
5.3.170.0030.04112.67
5.3.160.0100.03712.67
5.3.150.0080.03612.67
5.3.140.0040.03812.66
5.3.130.0070.03712.66
5.3.120.0080.03612.66
5.3.110.0050.04012.66
5.3.100.0050.03712.12
5.3.90.0080.03412.11
5.3.80.0070.03512.10
5.3.70.0070.03612.11
5.3.60.0070.03612.09
5.3.50.0060.03912.04
5.3.40.0050.03812.04
5.3.30.0010.04111.98
5.3.20.0050.03511.78
5.3.10.0060.04311.73
5.3.00.0070.03511.73
5.2.170.0050.0329.23
5.2.160.0030.0339.23
5.2.150.0060.0309.23
5.2.140.0070.0299.22
5.2.130.0070.0279.18
5.2.120.0040.0299.18
5.2.110.0050.0309.19
5.2.100.0040.0309.18
5.2.90.0030.0319.18
5.2.80.0050.0309.18
5.2.70.0030.0339.18
5.2.60.0060.0299.14
5.2.50.0080.0289.11
5.2.40.0070.0299.09
5.2.30.0050.0309.05
5.2.20.0090.0349.05
5.2.10.0020.0328.95
5.2.00.0050.0408.81
5.1.60.0050.0248.10
5.1.50.0070.0228.10
5.1.40.0030.0258.08
5.1.30.0060.0248.43
5.1.20.0020.0328.45
5.1.10.0050.0248.17
5.1.00.0040.0258.18
5.0.50.0030.0216.64
5.0.40.0040.0186.51
5.0.30.0030.0316.32
5.0.20.0020.0206.29
5.0.10.0040.0196.27
5.0.00.0040.0296.26
4.4.90.0050.0134.78
4.4.80.0030.0154.75
4.4.70.0040.0144.75
4.4.60.0030.0154.75
4.4.50.0040.0144.77
4.4.40.0030.0254.71
4.4.30.0020.0164.76
4.4.20.0040.0144.85
4.4.10.0020.0164.85
4.4.00.0050.0234.76
4.3.110.0020.0164.67
4.3.100.0040.0144.67
4.3.90.0060.0114.63
4.3.80.0030.0244.58
4.3.70.0010.0164.63
4.3.60.0030.0144.63
4.3.50.0060.0124.63
4.3.40.0040.0234.54
4.3.30.0010.0173.30
4.3.20.0010.0173.28
4.3.10.0020.0163.25
4.3.00.0100.0308.41

preferences:
58.68 ms | 401 KiB | 5 Q