3v4l.org

run code in 300+ PHP versions simultaneously
<?php function destroy_foo() { $_SESSION["a"] = "Hello!"; //global $foo; unset($_SESSION["a"]); } $_SESSION["a"]= 'bar'; destroy_foo(); echo $_SESSION["a"];

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)
8.3.40.0080.00818.96
8.3.30.0070.00719.18
8.3.20.0040.00420.20
8.3.10.0080.00023.61
8.3.00.0050.00319.38
8.2.170.0100.01022.96
8.2.160.0090.00620.57
8.2.150.0090.00024.18
8.2.140.0080.00024.66
8.2.130.0030.01026.16
8.2.120.0050.00519.28
8.2.110.0060.00319.21
8.2.100.0000.01217.86
8.2.90.0000.00819.14
8.2.80.0080.00017.97
8.2.70.0000.00817.75
8.2.60.0060.00317.93
8.2.50.0080.00018.07
8.2.40.0000.00818.28
8.2.30.0030.00618.22
8.2.20.0040.00417.81
8.2.10.0000.00718.21
8.2.00.0050.00317.80
8.1.270.0030.00523.91
8.1.260.0020.00526.35
8.1.250.0040.00428.09
8.1.240.0030.00620.91
8.1.230.0060.00617.51
8.1.220.0040.00417.79
8.1.210.0000.00818.77
8.1.200.0000.00817.35
8.1.190.0040.00417.23
8.1.180.0040.00418.10
8.1.170.0040.00418.72
8.1.160.0000.00722.02
8.1.150.0070.00018.87
8.1.140.0050.00217.39
8.1.130.0030.00317.81
8.1.120.0000.00717.30
8.1.110.0000.00817.48
8.1.100.0000.01017.48
8.1.90.0020.00517.46
8.1.80.0080.00017.36
8.1.70.0000.00717.32
8.1.60.0030.00617.61
8.1.50.0080.00017.56
8.1.40.0000.00817.39
8.1.30.0040.00417.57
8.1.20.0050.00217.62
8.1.10.0030.00617.46
8.1.00.0000.00817.36
8.0.300.0070.00018.77
8.0.290.0070.00016.63
8.0.280.0000.00718.38
8.0.270.0000.00717.19
8.0.260.0000.00917.23
8.0.250.0030.00316.86
8.0.240.0040.00416.84
8.0.230.0030.00316.91
8.0.220.0030.00316.95
8.0.210.0000.00716.86
8.0.200.0000.00716.86
8.0.190.0000.00716.96
8.0.180.0000.00716.87
8.0.170.0050.00316.93
8.0.160.0030.00416.94
8.0.150.0000.00716.71
8.0.140.0040.00416.68
8.0.130.0080.00013.36
8.0.120.0000.00716.86
8.0.110.0080.00016.90
8.0.100.0030.00516.94
8.0.90.0070.00016.68
8.0.80.0060.01316.88
8.0.70.0000.00816.77
8.0.60.0000.00716.96
8.0.50.0000.00716.71
8.0.30.0090.01017.01
8.0.20.0080.01117.40
8.0.10.0020.00516.96
8.0.00.0060.01116.89
7.4.330.0050.00015.07
7.4.320.0000.00716.60
7.4.300.0000.00716.60
7.4.290.0030.00316.51
7.4.280.0050.00316.58
7.4.270.0000.00616.49
7.4.260.0050.00216.38
7.4.250.0040.00416.38
7.4.240.0020.00516.55
7.4.230.0030.00316.69
7.4.220.0060.01216.43
7.4.210.0070.00716.48
7.4.200.0000.00816.50
7.4.160.0100.01016.46
7.4.150.0160.00317.40
7.4.140.0030.01417.86
7.4.130.0100.00616.61
7.4.120.0080.00916.64
7.4.110.0030.01316.41
7.4.100.0070.01016.52
7.4.90.0100.00716.52
7.4.80.0130.01019.39
7.4.70.0150.00316.56
7.4.60.0150.00616.66
7.4.50.0060.00016.48
7.4.40.0100.00616.52
7.4.30.0130.00316.72
7.4.00.0040.01115.09
7.3.330.0030.00313.14
7.3.320.0000.00513.12
7.3.310.0000.00716.23
7.3.300.0030.00316.31
7.3.290.0090.01216.35
7.3.280.0090.00716.42
7.3.270.0100.00717.40
7.3.260.0070.01716.41
7.3.250.0080.00916.58
7.3.240.0100.00616.34
7.3.230.0100.00716.41
7.3.210.0110.01116.54
7.3.200.0070.01019.39
7.3.190.0090.01216.31
7.3.180.0090.00616.45
7.3.170.0060.00916.56
7.3.160.0120.00616.50
7.3.10.0110.00416.71
7.3.00.0090.00616.62
7.2.330.0070.01016.70
7.2.320.0100.00716.60
7.2.310.0070.01316.64
7.2.300.0160.00616.59
7.2.290.0100.00716.68
7.2.130.0110.00716.71
7.2.120.0100.00516.75
7.2.110.0110.00516.63
7.2.100.0080.00516.60
7.2.90.0090.00616.66
7.2.80.0040.01116.83
7.2.70.0020.01016.67
7.2.60.0050.00916.99
7.2.50.0040.01216.94
7.2.40.0100.00316.88
7.2.30.0050.01016.89
7.2.20.0090.00516.98
7.2.10.0060.00916.95
7.2.00.0080.00717.78
7.1.250.0080.00015.90
7.1.240.0000.01515.56
7.1.230.0000.01515.46
7.1.220.0030.00615.92
7.1.210.0000.01115.48
7.1.200.0070.00315.82
7.1.190.0030.01015.84
7.1.180.0060.00315.48
7.1.170.0070.00715.65
7.1.160.0030.00715.98
7.1.150.0030.01015.46
7.1.140.0070.00315.93
7.1.130.0040.00715.82
7.1.120.0120.00315.79
7.1.110.0060.00915.56
7.1.100.0030.00717.15
7.1.90.0070.00715.97
7.1.80.0040.01115.61
7.1.70.0100.00216.36
7.1.60.0090.01117.73
7.1.50.0110.01425.39
7.1.40.0070.00715.90
7.1.30.0060.00615.54
7.1.20.0030.01015.65
7.1.10.0000.01115.69
7.1.00.0030.04018.98
7.0.320.0000.01215.37
7.0.310.0070.00715.30
7.0.300.0060.00915.40
7.0.290.0060.00915.34
7.0.280.0100.00615.40
7.0.270.0040.01115.43
7.0.260.0030.01215.33
7.0.250.0090.00315.34
7.0.240.0000.01015.40
7.0.230.0040.00815.36
7.0.220.0030.00615.39
7.0.210.0060.00915.18
7.0.200.0010.00816.07
7.0.190.0100.00315.50
7.0.180.0100.00315.32
7.0.170.0050.00515.43
7.0.160.0000.01415.36
7.0.150.0070.00315.24
7.0.140.0040.04018.66
7.0.130.0030.01015.44
7.0.120.0060.00615.48
7.0.110.0040.00815.21
7.0.100.0030.00815.45
7.0.90.0000.01315.16
7.0.80.0060.00615.27
7.0.70.0030.00615.35
7.0.60.0090.02417.55
7.0.50.0050.02316.64
7.0.40.0080.04316.79
7.0.30.0150.02016.81
7.0.20.0220.04016.84
7.0.10.0050.04216.75
7.0.00.0000.02916.67
5.6.380.0000.01214.14
5.6.370.0130.00414.02
5.6.360.0130.00314.55
5.6.350.0180.00014.38
5.6.340.0060.00614.38
5.6.330.0150.00414.43
5.6.320.0110.00714.46
5.6.310.0110.00314.44
5.6.300.0040.00914.46
5.6.290.0130.00314.55
5.6.280.0080.03817.67
5.6.270.0070.00714.14
5.6.260.0070.00714.36
5.6.250.0110.00314.46
5.6.240.0150.00314.49
5.6.230.0100.00714.29
5.6.220.0120.00614.43
5.6.210.0120.04017.47
5.6.200.0120.03916.20
5.6.190.0050.04317.38
5.6.180.1770.01917.47
5.6.170.0170.04217.21
5.6.160.0050.04317.40
5.6.150.0120.04016.34
5.6.140.0020.03316.31
5.6.130.0070.03816.13
5.6.120.0130.02017.62
5.6.110.0100.04217.61
5.6.100.0050.02317.82
5.6.90.0070.03417.68
5.6.80.0100.02217.41
5.6.70.0040.00814.36
5.6.60.0060.00614.46
5.6.50.0090.00314.36
5.6.40.0050.00513.97
5.6.30.0040.00414.19
5.6.20.0100.00314.11
5.6.10.0040.00714.44
5.6.00.0080.00413.99
5.5.380.0100.00011.18
5.5.370.0080.00511.37
5.5.360.0070.00311.46
5.5.350.0120.03215.77
5.5.340.0060.02314.59
5.5.330.0120.01715.80
5.5.320.0150.03315.61
5.5.310.0130.03315.82
5.5.300.0050.01814.57
5.5.290.0020.02614.61
5.5.280.0000.03915.96
5.5.270.0030.02315.96
5.5.260.0050.04315.99
5.5.250.0070.04415.74
5.5.240.0070.01815.53
5.5.230.0000.01210.94
5.5.220.0050.00511.20
5.5.210.0040.00711.12
5.5.200.0000.00611.14
5.5.190.0050.00310.95
5.5.180.0070.00311.25
5.5.170.0030.01014.30
5.5.160.0060.00611.29
5.5.150.0000.01111.00
5.5.140.0030.00311.18
5.5.130.0100.00011.39
5.5.120.0060.00011.45
5.5.110.0040.00711.26
5.5.100.0030.01010.75
5.5.90.0060.00610.98
5.5.80.0040.00410.98
5.5.70.0000.00611.03
5.5.60.0030.01010.93
5.5.50.0070.00311.25
5.5.40.0040.00810.88
5.5.30.0040.00810.96
5.5.20.0070.00411.00
5.5.10.0030.00611.16
5.5.00.0090.00310.93
5.4.450.1130.02715.25
5.4.440.1010.02315.35
5.4.430.1130.02515.37
5.4.420.1080.02315.41
5.4.410.1220.02715.05
5.4.400.1150.02315.12
5.4.390.1120.02515.09
5.4.380.1080.02314.98
5.4.370.1270.02414.96
5.4.360.1220.02215.05
5.4.350.1230.02214.95
5.4.340.1080.02014.94
5.4.330.0030.00711.29
5.4.320.1050.02315.18
5.4.310.1090.02015.14
5.4.300.1070.02315.12
5.4.290.1150.02015.11
5.4.280.1230.01914.91
5.4.270.1120.02015.16
5.4.260.1170.02515.11
5.4.250.1090.02415.10
5.4.240.1050.02414.98
5.4.230.1160.02015.17
5.4.220.1120.02215.09
5.4.210.1150.02214.96
5.4.200.1170.02415.10
5.4.190.1270.02515.10
5.4.180.1130.01815.20
5.4.170.1100.02015.00
5.4.160.1130.01815.21
5.4.150.1180.02015.11
5.4.140.1180.02013.88
5.4.130.1180.02013.71
5.4.120.1250.02013.75
5.4.110.1170.02013.75
5.4.100.1250.02013.58
5.4.90.1160.02313.86
5.4.80.1100.02013.69
5.4.70.1170.02413.75
5.4.60.1250.02013.76
5.4.50.1080.02113.56
5.4.40.0560.02313.75
5.4.30.0050.02813.59
5.4.20.0080.04313.77
5.4.10.0260.03113.70
5.4.00.1090.01813.52
5.3.290.1080.02012.65
5.3.280.1230.02012.56
5.3.270.1080.02012.53
5.3.260.1130.02812.63
5.3.250.1170.02412.44
5.3.240.1180.01812.50
5.3.230.1200.02312.55
5.3.220.1240.02212.56
5.3.210.1280.01812.52
5.3.200.1150.01812.58
5.3.190.1160.02312.63
5.3.180.1130.02312.50
5.3.170.1020.02412.55
5.3.160.1170.02312.54
5.3.150.1030.02412.62
5.3.140.1210.02212.56
5.3.130.1170.02712.49
5.3.120.1170.02212.66
5.3.110.1160.02512.69
5.3.100.1360.02612.37
5.3.90.1070.01812.29
5.3.80.1200.01812.23
5.3.70.1130.02012.26
5.3.60.1170.01812.16
5.3.50.1190.01612.16
5.3.40.1070.02212.29
5.3.30.1000.01812.16
5.3.20.1130.01812.01
5.3.10.1070.02011.92
5.3.00.1220.02111.78
5.2.170.0740.01810.44
5.2.160.0040.03510.45
5.2.150.0050.02010.44
5.2.140.0030.01610.54
5.2.130.0070.01510.43
5.2.120.0900.01510.43
5.2.110.0890.01710.42
5.2.100.0280.01710.42
5.2.90.0030.01910.43
5.2.80.0030.01910.58
5.2.70.0540.01810.44
5.2.60.0980.01810.48
5.2.50.0870.01910.39
5.2.40.0720.01710.42
5.2.30.0770.01310.40
5.2.20.0730.01610.38
5.2.10.0800.01710.30
5.2.00.0760.01310.22
5.1.60.0750.0189.86
5.1.50.0880.0159.86
5.1.40.0750.01510.02
5.1.30.0820.01810.17
5.1.20.0840.01310.07
5.1.10.0040.0329.90
5.1.00.0070.0179.94
5.0.50.0040.0159.15
5.0.40.0020.0149.12
5.0.30.0020.0279.05
5.0.20.0180.0208.96
5.0.10.0490.0158.99
5.0.00.0470.0209.07
4.4.90.0380.0128.64
4.4.80.0390.0098.64
4.4.70.0400.0108.64
4.4.60.0370.0088.64
4.4.50.0450.0138.64
4.4.40.0450.0158.64
4.4.30.0350.0118.64
4.4.20.0470.0148.64
4.4.10.0430.0128.64
4.4.00.0440.0178.64
4.3.110.0450.0108.64
4.3.100.0430.0098.64
4.3.90.0450.0108.64
4.3.80.0350.0158.64
4.3.70.0490.0098.64
4.3.60.0090.0178.64
4.3.50.0020.0138.64
4.3.40.0070.0228.64
4.3.30.0000.0128.64
4.3.20.0020.0108.64
4.3.10.0020.0108.64
4.3.00.0030.0108.64

preferences:
42.09 ms | 400 KiB | 5 Q