3v4l.org

run code in 300+ PHP versions simultaneously
<?php function &g(&$v) { return $v; } function f(&$v) { $v = 5; } $foo = null; $name = 'foo'; call_user_func_array('f', array($$name)); //var_dump(array(g($$name))); var_dump($foo);

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)
8.3.40.0150.00018.58
8.3.30.0040.01118.96
8.3.20.0000.00720.39
8.3.10.0040.00421.95
8.3.00.0000.00722.43
8.2.170.0070.01022.96
8.2.160.0100.00319.34
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0050.00326.16
8.2.120.0050.00319.61
8.2.110.0060.00322.25
8.2.100.0040.00819.70
8.2.90.0050.00319.30
8.2.80.0080.00017.97
8.2.70.0070.00417.63
8.2.60.0080.00017.93
8.2.50.0080.00018.07
8.2.40.0070.00318.22
8.2.30.0000.00717.95
8.2.20.0040.00417.68
8.2.10.0040.00417.80
8.2.00.0050.00317.73
8.1.270.0030.00522.05
8.1.260.0040.00426.35
8.1.250.0030.00528.09
8.1.240.0080.00418.44
8.1.230.0110.00018.90
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0100.00617.13
8.1.190.0040.00417.54
8.1.180.0000.00918.82
8.1.170.0100.00018.46
8.1.160.0000.00722.12
8.1.150.0000.00718.63
8.1.140.0040.00417.43
8.1.130.0000.00717.36
8.1.120.0000.00717.37
8.1.110.0050.00217.40
8.1.100.0070.00017.48
8.1.90.0000.00717.45
8.1.80.0080.00017.47
8.1.70.0030.00317.39
8.1.60.0080.00417.61
8.1.50.0030.00517.41
8.1.40.0050.00217.53
8.1.30.0040.00417.50
8.1.20.0040.00417.65
8.1.10.0080.00017.45
8.1.00.0000.00817.32
8.0.300.0040.00418.77
8.0.290.0040.00417.17
8.0.280.0070.00018.47
8.0.270.0000.00718.07
8.0.260.0040.00416.93
8.0.250.0060.00016.96
8.0.240.0000.00717.02
8.0.230.0070.00016.94
8.0.220.0030.00416.83
8.0.210.0070.00016.95
8.0.200.0000.00616.96
8.0.190.0040.00417.00
8.0.180.0030.00317.02
8.0.170.0000.00816.86
8.0.160.0040.00416.80
8.0.150.0040.00416.94
8.0.140.0000.00816.84
8.0.130.0050.00013.41
8.0.120.0080.00016.91
8.0.110.0000.00716.95
8.0.100.0070.00016.94
8.0.90.0080.00016.93
8.0.80.0040.01216.93
8.0.70.0070.00016.89
8.0.60.0040.00416.81
8.0.50.0000.00716.81
8.0.30.0160.00317.29
8.0.20.0100.00917.40
8.0.10.0050.00216.96
8.0.00.0060.01416.70
7.4.330.0060.00015.00
7.4.320.0030.00316.50
7.4.300.0030.00316.49
7.4.290.0030.00416.41
7.4.280.0050.00216.47
7.4.270.0030.00316.60
7.4.260.0070.00016.60
7.4.250.0000.00716.45
7.4.240.0020.00516.60
7.4.230.0030.00316.33
7.4.220.0100.00716.53
7.4.210.0060.01016.53
7.4.200.0070.00016.70
7.4.190.0000.00816.51
7.4.160.0170.00416.48
7.4.150.0160.00717.40
7.4.140.0090.01117.86
7.4.130.0100.01116.63
7.4.120.0100.00716.52
7.4.110.0160.00316.41
7.4.100.0060.01616.57
7.4.90.0110.01016.54
7.4.80.0070.01016.65
7.4.70.0090.00816.45
7.4.60.0070.01016.64
7.4.50.0030.00616.16
7.4.40.0070.01122.77
7.4.30.0070.01016.63
7.4.00.0050.01314.90
7.3.330.0030.00513.23
7.3.320.0050.00013.24
7.3.310.0030.00316.40
7.3.300.0030.00316.21
7.3.290.0090.00616.35
7.3.280.0050.01016.37
7.3.270.0070.01017.40
7.3.260.0100.00716.55
7.3.250.0120.00816.51
7.3.240.0000.01816.38
7.3.230.0150.00716.61
7.3.210.0040.01216.32
7.3.200.0060.01019.39
7.3.190.0150.00616.43
7.3.180.0030.01316.47
7.3.170.0070.01516.34
7.3.160.0120.00416.45
7.3.120.0060.00914.91
7.3.110.0120.00415.00
7.3.100.0080.00314.86
7.3.90.0120.00314.39
7.3.80.0070.00714.81
7.3.70.0040.00714.71
7.3.60.0060.00314.72
7.3.50.0040.01114.79
7.3.40.0060.00614.71
7.3.30.0040.00914.61
7.3.20.0120.00316.66
7.3.10.0070.00916.64
7.3.00.0090.00516.54
7.2.330.0140.01016.27
7.2.320.0060.01316.24
7.2.310.0090.00916.43
7.2.300.0090.00916.76
7.2.290.0110.00616.70
7.2.250.0030.01315.08
7.2.240.0070.01115.06
7.2.230.0040.01115.06
7.2.220.0030.01314.73
7.2.210.0040.00914.89
7.2.200.0040.01114.87
7.2.190.0030.01015.02
7.2.180.0030.01214.71
7.2.170.0070.01014.96
7.2.130.0040.00716.62
7.2.120.0070.00716.71
7.2.110.0000.01416.79
7.2.100.0110.00416.76
7.2.90.0040.00816.86
7.2.80.0030.01316.96
7.2.70.0030.00616.84
7.2.60.0110.00316.65
7.2.50.0030.01316.76
7.2.40.0040.00716.68
7.2.30.0030.01216.86
7.2.20.0000.01016.57
7.2.10.0070.00716.69
7.2.00.0040.01117.97
7.1.330.0000.01715.64
7.1.320.0030.01015.70
7.1.310.0070.00415.90
7.1.300.0070.01015.86
7.1.290.0030.00615.74
7.1.280.0100.00615.83
7.1.270.0000.01415.80
7.1.260.0090.00615.90
7.1.250.0070.00615.69
7.1.100.0000.00918.13
7.1.70.0050.00317.22
7.1.60.0140.01019.82
7.1.50.0100.01317.07
7.1.00.0000.06322.33
7.0.200.0030.00616.46
7.0.140.0030.07322.21
7.0.60.0070.04020.02
7.0.50.0070.04317.81
7.0.40.0070.08320.02
7.0.30.0270.04320.21
7.0.20.0270.04720.26
7.0.10.0030.09020.33
7.0.00.0170.08320.30
5.6.280.0030.07320.89
5.6.210.0070.06020.75
5.6.200.0070.08718.12
5.6.190.0170.07320.77
5.6.180.0230.05020.50
5.6.170.0330.05020.56
5.6.160.0070.07320.57
5.6.150.0100.04318.16
5.6.140.0030.08318.14
5.6.130.0030.04018.33
5.6.120.0030.06321.10
5.6.110.0100.07721.15
5.6.100.0030.05321.14
5.6.90.0070.05320.97
5.6.80.0100.07720.54
5.5.350.0030.08320.46
5.5.340.0100.05017.92
5.5.330.0130.09020.47
5.5.320.0300.07320.27
5.5.310.0230.05020.41
5.5.300.0130.06717.98
5.5.290.0100.05718.03
5.5.280.0130.07320.77
5.5.270.0070.04320.96
5.5.260.0030.08720.72
5.5.250.0130.07320.75
5.5.240.0330.07020.13
5.4.450.0170.04019.33
5.4.440.0130.04019.33
5.4.430.0230.04719.55
5.4.420.0200.03319.45
5.4.410.0200.03319.28
5.4.400.0230.04019.22
5.4.390.0230.07319.16
5.4.380.0170.04719.27
5.4.370.0200.04719.20
5.4.360.0270.04719.15
5.4.350.0300.06719.20
5.4.340.0270.05718.99
5.4.320.0270.07019.07
5.4.310.0130.04319.31
5.4.300.0270.07019.21
5.4.290.0370.03719.14
5.4.280.0230.07719.23
5.4.270.0300.06719.05
5.4.260.0230.07019.22
5.4.250.0100.04719.30
5.4.240.0330.04019.02
5.4.230.0400.05719.13
5.4.220.0370.03318.87
5.4.210.0330.06719.08
5.4.200.0170.04718.86
5.4.190.0200.05319.14
5.4.180.0270.06719.12
5.4.170.0270.07319.15
5.4.160.0300.04318.84
5.4.150.0330.06319.07
5.4.140.0300.06316.48
5.4.130.0330.06716.72
5.4.120.0330.04016.42
5.4.110.0330.05316.56
5.4.100.0270.06716.50
5.4.90.0200.05716.59
5.4.80.0330.03716.45
5.4.70.0170.04016.59
5.4.60.0130.04716.25
5.4.50.0200.07016.51
5.4.40.0200.04716.55
5.4.30.0230.06016.55
5.4.20.0200.04716.26
5.4.10.0270.06316.42
5.4.00.0170.05715.83
5.3.290.0330.05714.66
5.3.280.0300.03714.49
5.3.270.0300.06714.52
5.3.260.0230.07314.68
5.3.250.0270.05014.54
5.3.240.0230.08014.59
5.3.230.0200.05714.82
5.3.220.0270.05714.66
5.3.210.0300.04714.64
5.3.200.0230.05014.57
5.3.190.0270.03314.57
5.3.180.0200.03714.72
5.3.170.0370.06314.57
5.3.160.0230.07714.57
5.3.150.0200.05014.48
5.3.140.0330.06314.53
5.3.130.0170.04014.52
5.3.120.0300.02714.47
5.3.110.0130.05714.52
5.3.100.0270.03014.17
5.3.90.0270.03013.93
5.3.80.0270.02714.24
5.3.70.0270.07014.03
5.3.60.0330.06314.02
5.3.50.0270.05714.04
5.3.40.0170.03714.01
5.3.30.0270.06013.82
5.3.20.0200.05013.59
5.3.10.0230.07313.59
5.3.00.0230.04713.86
5.2.170.0200.06011.37
5.2.160.0200.04011.20
5.2.150.0200.03311.07
5.2.140.0270.05311.13
5.2.130.0170.06011.03
5.2.120.0130.04011.16
5.2.110.0130.04711.03
5.2.100.0170.06311.26
5.2.90.0270.05311.03
5.2.80.0230.05010.99
5.2.70.0130.06711.21
5.2.60.0230.04311.27
5.2.50.0200.05311.13
5.2.40.0170.04710.91
5.2.30.0200.03710.97
5.2.20.0170.05710.92
5.2.10.0230.02710.79
5.2.00.0200.05010.72
5.1.60.0170.0309.91
5.1.50.0100.02710.00
5.1.40.0130.03010.13
5.1.30.0170.04310.47
5.1.20.0130.03710.25
5.1.10.0200.04010.16
5.1.00.0170.0539.98
5.0.50.0000.0339.75
5.0.40.0100.0339.75
5.0.30.0130.0279.75
5.0.20.0070.0479.75
5.0.10.0130.0279.75
5.0.00.0070.0379.75
4.4.90.0130.0339.75
4.4.80.0130.0309.75
4.4.70.0100.0379.75
4.4.60.0070.0179.75
4.4.50.0070.0139.75
4.4.40.0130.0509.75
4.4.30.0070.0179.75
4.4.20.0070.0339.75
4.4.10.0100.0209.75
4.4.00.0100.0409.75
4.3.110.0070.0209.75
4.3.100.0100.0239.75
4.3.90.0100.0339.75
4.3.80.0070.0539.75
4.3.70.0070.0209.75
4.3.60.0070.0339.75
4.3.50.0100.0309.75
4.3.40.0100.0479.75
4.3.30.0030.0379.75
4.3.20.0070.0339.75
4.3.10.0000.0239.75
4.3.00.0030.0209.75

preferences:
42.07 ms | 400 KiB | 5 Q