3v4l.org

run code in 300+ PHP versions simultaneously
<?php function &g(&$v) { return $v; } function f(&$v) { $v = 5; } $foo = null; $name = 'foo'; call_user_func_array('f', array($a = &g($$name))); //var_dump(array(g($$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)
8.3.60.0130.00618.55
8.3.50.0090.01221.27
8.3.40.0140.00018.75
8.3.30.0070.00719.10
8.3.20.0070.00020.18
8.3.10.0040.00421.92
8.3.00.0050.00322.46
8.2.180.0060.00916.75
8.2.170.0070.00722.96
8.2.160.0070.00719.16
8.2.150.0070.00024.18
8.2.140.0050.00324.66
8.2.130.0150.00326.16
8.2.120.0030.00519.38
8.2.110.0040.00422.25
8.2.100.0040.00819.76
8.2.90.0000.00819.41
8.2.80.0040.00418.05
8.2.70.0000.00817.59
8.2.60.0040.00417.93
8.2.50.0040.00818.07
8.2.40.0050.00319.80
8.2.30.0000.00718.03
8.2.20.0000.00817.67
8.2.10.0050.00517.67
8.2.00.0070.00017.70
8.1.280.0030.01425.92
8.1.270.0060.00322.24
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0050.00523.92
8.1.230.0000.01218.96
8.1.220.0030.00617.74
8.1.210.0080.00018.77
8.1.200.0060.00317.48
8.1.190.0070.00017.52
8.1.180.0080.00018.64
8.1.170.0060.00618.52
8.1.160.0000.00722.11
8.1.150.0020.00518.54
8.1.140.0000.00817.37
8.1.130.0000.01017.86
8.1.120.0030.00417.47
8.1.110.0040.00417.45
8.1.100.0000.00717.39
8.1.90.0000.00817.44
8.1.80.0000.00717.40
8.1.70.0040.00417.41
8.1.60.0070.00317.61
8.1.50.0040.00417.44
8.1.40.0030.00617.54
8.1.30.0000.00817.50
8.1.20.0060.00317.66
8.1.10.0000.00817.36
8.1.00.0020.00517.45
8.0.300.0040.00418.77
8.0.290.0040.00417.18
8.0.280.0070.00018.34
8.0.270.0000.00717.16
8.0.260.0000.00816.86
8.0.250.0030.00316.90
8.0.240.0000.00816.89
8.0.230.0070.00016.88
8.0.220.0000.00616.88
8.0.210.0030.00316.83
8.0.200.0000.00616.89
8.0.190.0030.00317.04
8.0.180.0000.00716.88
8.0.170.0050.00316.92
8.0.160.0080.00016.88
8.0.150.0000.00816.87
8.0.140.0040.00316.94
8.0.130.0000.00513.36
8.0.120.0040.00416.91
8.0.110.0000.00716.90
8.0.100.0000.00716.80
8.0.90.0070.00016.94
8.0.80.0060.00916.82
8.0.70.0040.00416.86
8.0.60.0040.00416.82
8.0.50.0000.00716.75
8.0.30.0150.00817.24
8.0.20.0100.01017.40
8.0.10.0040.00416.95
8.0.00.0090.00816.73
7.4.330.0060.00015.00
7.4.320.0030.00316.59
7.4.300.0000.00616.57
7.4.290.0030.00316.61
7.4.280.0030.00316.62
7.4.270.0000.00716.59
7.4.260.0000.00716.38
7.4.250.0080.00016.34
7.4.240.0000.00816.53
7.4.230.0030.00316.65
7.4.220.0090.00916.52
7.4.210.0090.00916.50
7.4.200.0030.00616.58
7.4.190.0070.00016.70
7.4.160.0110.01116.60
7.4.150.0120.00817.40
7.4.140.0020.01617.86
7.4.130.0080.01416.52
7.4.120.0030.01416.40
7.4.110.0190.00016.63
7.4.100.0100.01316.57
7.4.90.0060.01516.60
7.4.80.0120.00919.39
7.4.70.0080.00816.57
7.4.60.0150.00016.43
7.4.50.0030.00616.66
7.4.40.0100.00322.77
7.4.30.0060.00916.54
7.4.00.0060.00615.09
7.3.330.0060.00013.38
7.3.320.0050.00013.26
7.3.310.0040.00416.25
7.3.300.0000.00716.22
7.3.290.0080.00816.29
7.3.280.0030.01616.32
7.3.270.0100.00617.40
7.3.260.0110.00716.62
7.3.250.0140.00316.52
7.3.240.0030.01416.38
7.3.230.0120.00916.49
7.3.210.0070.01016.61
7.3.200.0170.00019.39
7.3.190.0100.00716.46
7.3.180.0140.00816.36
7.3.170.0000.01516.47
7.3.160.0090.00816.38
7.3.120.0040.00814.84
7.3.10.0100.00716.07
7.3.00.0180.00716.38
7.2.330.0070.01116.58
7.2.320.0060.01216.44
7.2.310.0060.01016.47
7.2.300.0040.01216.59
7.2.290.0130.00316.63
7.2.130.0170.00416.54
7.2.120.0140.00716.50
7.2.110.0140.00416.48
7.2.100.0230.00316.84
7.2.90.0110.01116.36
7.2.80.0130.01016.82
7.2.70.0170.00016.81
7.2.60.0080.00716.94
7.2.50.0090.00616.49
7.2.40.0100.00716.30
7.2.30.0140.01016.51
7.2.20.0150.00616.69
7.2.10.0180.00016.43
7.2.00.0140.00716.79
7.1.250.0140.00315.32
7.1.200.0030.00915.82
7.1.70.0050.00516.85
7.1.60.0070.02119.82
7.1.50.0120.01217.03
7.1.00.0100.06722.35
7.0.200.0060.00316.72
7.0.140.0030.07322.04
7.0.60.0170.07019.90
7.0.50.0100.06317.79
7.0.40.0000.09020.05
7.0.30.0200.03720.12
7.0.20.0370.07720.19
7.0.10.0030.04320.19
7.0.00.0130.08020.29
5.6.280.0000.07721.12
5.6.210.0030.04720.61
5.6.200.0000.04718.14
5.6.190.0070.08320.41
5.6.180.0570.06320.49
5.6.170.0100.04720.56
5.6.160.0030.04720.48
5.6.150.0070.04718.25
5.6.140.0100.08018.16
5.6.130.0130.08018.20
5.6.120.0100.08321.13
5.6.110.0000.06021.12
5.6.100.0270.06721.14
5.6.90.0070.07020.98
5.6.80.0070.07020.54
5.5.350.0300.06020.33
5.5.340.0100.08017.98
5.5.330.0030.05720.37
5.5.320.0130.04320.29
5.5.310.0270.08020.23
5.5.300.0070.05317.97
5.5.290.0070.06717.98
5.5.280.0170.08020.77
5.5.270.0170.07720.85
5.5.260.0000.05720.98
5.5.250.0300.05720.61
5.5.240.0000.04020.07
5.4.450.0270.07019.47
5.4.440.0330.06019.49
5.4.430.0300.06319.46
5.4.420.0330.07019.30
5.4.410.0270.03019.36
5.4.400.0200.04319.22
5.4.390.0200.05019.20
5.4.380.0200.08019.22
5.4.370.0230.04719.14
5.4.360.0270.06019.31
5.4.350.0200.07019.25
5.4.340.0100.06319.24
5.4.320.0230.07019.06
5.4.310.0300.03719.20
5.4.300.0200.04318.97
5.4.290.0230.08018.98
5.4.280.0300.04319.14
5.4.270.0270.07318.98
5.4.260.0230.03719.21
5.4.250.0330.04019.13
5.4.240.0200.04719.21
5.4.230.0230.03718.87
5.4.220.0470.06018.94
5.4.210.0330.07319.22
5.4.200.0330.06319.32
5.4.190.0230.06718.98
5.4.180.0230.03719.18
5.4.170.0500.04719.21
5.4.160.0300.07019.32
5.4.150.0530.04018.85
5.4.140.0400.04016.61
5.4.130.0370.03716.55
5.4.120.0230.06716.43
5.4.110.0170.04716.59
5.4.100.0170.07316.41
5.4.90.0230.03716.56
5.4.80.0170.07716.39
5.4.70.0200.05016.33
5.4.60.0170.03716.56
5.4.50.0170.04316.43
5.4.40.0200.04016.51
5.4.30.0200.06316.52
5.4.20.0170.04716.32
5.4.10.0330.06716.24
5.4.00.0200.03715.77
5.3.290.0330.06714.78
5.3.280.0400.04714.75
5.3.270.0430.06014.52
5.3.260.0270.05714.83
5.3.250.0300.06014.52
5.3.240.0230.03714.59
5.3.230.0300.07014.50
5.3.220.0270.07314.58
5.3.210.0270.06014.56
5.3.200.0200.04714.59
5.3.190.0200.06714.54
5.3.180.0230.06714.48
5.3.170.0230.07014.64
5.3.160.0200.07314.46
5.3.150.0130.04714.48
5.3.140.0200.05014.68
5.3.130.0130.08014.66
5.3.120.0200.06314.52
5.3.110.0170.07014.55
5.3.100.0170.07013.94
5.3.90.0270.06714.24
5.3.80.0170.06314.09
5.3.70.0300.06313.95
5.3.60.0230.03714.23
5.3.50.0430.05013.88
5.3.40.0270.06714.03
5.3.30.0200.04714.08
5.3.20.0370.05313.61
5.3.10.0270.04013.66
5.3.00.0270.05013.55
5.2.170.0230.04713.44
5.2.160.0170.06313.44
5.2.150.0200.05313.44
5.2.140.0270.06013.44
5.2.130.0270.03313.44
5.2.120.0230.03013.44
5.2.110.0230.05713.44
5.2.100.0230.05013.44
5.2.90.0230.04313.44
5.2.80.0200.06013.44
5.2.70.0170.04713.44
5.2.60.0170.06713.44
5.2.50.0170.03313.44
5.2.40.0170.05713.44
5.2.30.0200.05013.44
5.2.20.0170.05313.44
5.2.10.0170.04313.44
5.2.00.0130.06013.44
5.1.60.0130.03313.44
5.1.50.0170.04713.44
5.1.40.0170.05013.44
5.1.30.0200.03013.44
5.1.20.0130.03313.44
5.1.10.0130.04713.44
5.1.00.0130.02713.44
5.0.50.0130.01313.44
5.0.40.0030.02713.44
5.0.30.0070.03013.44
5.0.20.0100.01713.44
5.0.10.0100.02013.44
5.0.00.0100.02713.44
4.4.90.0030.04713.44
4.4.80.0000.03713.44
4.4.70.0030.04013.44
4.4.60.0030.01713.44
4.4.50.0100.01313.44
4.4.40.0000.06013.44
4.4.30.0000.03713.44
4.4.20.0000.03713.44
4.4.10.0100.01313.44
4.4.00.0030.02713.44
4.3.110.0070.01713.44
4.3.100.0030.01713.44
4.3.90.0130.01013.44
4.3.80.0070.02313.44
4.3.70.0070.01313.44
4.3.60.0030.01713.44
4.3.50.0030.01713.44
4.3.40.0070.02313.44
4.3.30.0030.01313.44
4.3.20.0030.02013.44
4.3.10.0030.01313.44
4.3.00.0000.01313.44

preferences:
54.47 ms | 401 KiB | 5 Q