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($$name))); $a = g($$name); $a = 3; //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)
8.3.70.0070.01116.75
8.3.60.0090.00918.43
8.3.50.0030.01221.09
8.3.40.0040.01118.72
8.3.30.0100.00319.10
8.3.20.0040.00420.04
8.3.10.0040.00422.04
8.3.00.0000.00722.43
8.2.190.0140.00016.75
8.2.180.0060.01516.38
8.2.170.0040.01122.96
8.2.160.0070.00719.25
8.2.150.0070.00024.18
8.2.140.0080.00024.66
8.2.130.0050.00326.16
8.2.120.0000.00819.36
8.2.110.0040.00720.58
8.2.100.0080.00419.64
8.2.90.0000.00719.27
8.2.80.0000.00817.97
8.2.70.0080.00017.63
8.2.60.0080.00017.93
8.2.50.0000.00918.07
8.2.40.0040.00718.16
8.2.30.0030.00517.98
8.2.20.0000.00817.57
8.2.10.0040.00417.85
8.2.00.0040.00417.61
8.1.280.0070.00725.92
8.1.270.0050.00322.05
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0040.00423.73
8.1.230.0080.00318.82
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0030.00617.47
8.1.190.0000.00817.52
8.1.180.0000.00918.73
8.1.170.0030.00518.53
8.1.160.0050.00322.10
8.1.150.0080.00018.50
8.1.140.0000.00717.31
8.1.130.0040.00417.82
8.1.120.0000.00817.50
8.1.110.0050.00317.33
8.1.100.0000.00717.45
8.1.90.0030.00517.45
8.1.80.0080.00017.41
8.1.70.0000.00817.32
8.1.60.0030.00717.60
8.1.50.0000.00817.54
8.1.40.0040.00417.54
8.1.30.0070.00017.65
8.1.20.0050.00217.65
8.1.10.0060.00317.53
8.1.00.0040.00417.34
8.0.300.0040.00418.77
8.0.290.0000.00717.15
8.0.280.0000.00718.43
8.0.270.0070.00017.25
8.0.260.0030.00316.80
8.0.250.0030.00316.94
8.0.240.0040.00716.82
8.0.230.0000.00716.95
8.0.220.0030.00316.86
8.0.210.0000.00716.89
8.0.200.0060.00016.83
8.0.190.0000.00716.84
8.0.180.0040.00416.95
8.0.170.0040.00416.90
8.0.160.0030.00516.90
8.0.150.0070.00016.89
8.0.140.0030.00516.79
8.0.130.0030.00313.30
8.0.120.0000.00816.84
8.0.110.0070.00016.93
8.0.100.0050.00316.94
8.0.90.0000.00716.66
8.0.80.0110.00716.93
8.0.70.0040.00416.84
8.0.60.0030.00516.74
8.0.50.0000.00716.76
8.0.30.0080.01017.04
8.0.20.0140.00617.40
8.0.10.0000.00716.85
8.0.00.0070.01016.80
7.4.330.0030.00315.00
7.4.320.0030.00316.51
7.4.300.0000.00616.51
7.4.290.0030.00316.47
7.4.280.0040.00416.60
7.4.270.0040.00416.60
7.4.260.0000.00716.49
7.4.250.0040.00416.44
7.4.240.0000.00716.44
7.4.230.0030.00316.40
7.4.220.0040.01516.60
7.4.210.0070.00816.51
7.4.200.0030.00316.68
7.4.190.0030.00716.31
7.4.160.0080.00816.45
7.4.150.0000.01817.40
7.4.140.0130.00517.86
7.4.130.0180.00016.52
7.4.120.0050.01116.46
7.4.110.0130.00416.47
7.4.100.0130.00916.39
7.4.90.0120.00616.52
7.4.80.0090.01019.39
7.4.70.0070.01416.41
7.4.60.0060.01516.45
7.4.50.0040.00416.54
7.4.40.0030.01322.77
7.4.30.0030.01216.48
7.4.00.0020.01214.76
7.3.330.0040.00413.11
7.3.320.0050.00013.27
7.3.310.0000.00716.25
7.3.300.0050.00216.29
7.3.290.0060.00916.31
7.3.280.0090.00816.29
7.3.270.0120.00917.40
7.3.260.0160.00716.28
7.3.250.0130.00616.50
7.3.240.0060.01016.33
7.3.230.0070.01316.39
7.3.210.0080.00916.62
7.3.200.0030.01319.39
7.3.190.0110.00816.17
7.3.180.0040.01116.34
7.3.170.0100.00716.52
7.3.160.0030.01316.18
7.3.120.0100.00615.02
7.3.110.0070.00714.89
7.3.100.0040.01114.99
7.3.90.0070.01014.82
7.3.80.0130.00614.67
7.3.70.0090.00914.48
7.3.60.0100.00714.91
7.3.50.0000.01514.73
7.3.40.0000.01214.71
7.3.30.0040.00814.56
7.3.20.0030.01316.68
7.3.10.0070.00716.44
7.3.00.0040.01216.71
7.2.330.0080.00816.70
7.2.320.0120.01116.74
7.2.310.0040.01316.29
7.2.300.0090.00916.28
7.2.290.0100.00616.70
7.2.250.0130.00715.25
7.2.240.0100.01014.79
7.2.230.0060.00615.21
7.2.220.0000.01415.26
7.2.210.0080.00414.96
7.2.200.0030.01415.18
7.2.190.0030.00914.75
7.2.180.0090.00615.09
7.2.170.0000.01815.12
7.2.00.0060.00618.89
7.1.330.0060.00915.68
7.1.320.0060.00615.68
7.1.310.0040.01116.10
7.1.300.0040.01115.85
7.1.290.0060.00315.73
7.1.280.0060.00915.51
7.1.270.0100.00615.88
7.1.260.0060.00615.83
7.1.100.0030.01018.27
7.1.70.0030.00617.28
7.1.60.0090.01519.82
7.1.50.0090.01617.09
7.1.00.0030.03322.29
7.0.200.0030.00716.88
7.0.140.0030.07322.09
7.0.60.0070.07720.01
7.0.50.0000.06017.73
7.0.40.0100.03720.27
7.0.30.0230.05720.16
7.0.20.0270.08720.19
7.0.10.0270.04020.16
7.0.00.0000.05020.14
5.6.280.0030.07320.88
5.6.210.0230.07020.71
5.6.200.0070.05718.16
5.6.190.0100.07320.67
5.6.180.3870.04720.51
5.6.170.0270.05320.61
5.6.160.0100.08020.55
5.6.150.0070.03718.17
5.6.140.0230.06718.21
5.6.130.0070.07318.18
5.6.120.0030.04721.12
5.6.110.0200.06020.98
5.6.100.0030.06021.08
5.6.90.0030.04320.98
5.6.80.0100.07720.40
5.6.70.0300.06020.37
5.5.350.0100.07320.46
5.5.340.0000.04017.97
5.5.330.0130.07720.42
5.5.320.0230.05320.30
5.5.310.0370.06720.36
5.5.300.0070.08317.98
5.5.290.0100.08317.95
5.5.280.0070.04020.77
5.5.270.0130.08020.87
5.5.260.0130.06020.79
5.5.250.0030.06320.55
5.5.240.0170.06020.29
5.4.450.0200.03719.27
5.4.440.0370.05719.46
5.4.430.0470.04319.63
5.4.420.0270.05719.54
5.4.410.0270.04719.44
5.4.400.0230.03718.87
5.4.390.0270.04019.06
5.4.380.0300.04019.13
5.4.370.0230.05019.22
5.4.360.0200.05019.05
5.4.350.0230.05018.94
5.4.340.0230.03719.13
5.4.320.0300.04719.08
5.4.310.0330.06019.21
5.4.300.0200.04319.05
5.4.290.0270.05719.21
5.4.280.0270.06019.23
5.4.270.0230.03718.95
5.4.260.0330.04019.14
5.4.250.0200.07719.23
5.4.240.0270.06718.95
5.4.230.0270.05018.93
5.4.220.0200.04019.05
5.4.210.0300.05319.30
5.4.200.0200.05019.23
5.4.190.0230.03719.21
5.4.180.0300.06719.07
5.4.170.0300.06719.14
5.4.160.0330.06019.13
5.4.150.0200.07019.04
5.4.140.0230.05316.55
5.4.130.0270.07016.39
5.4.120.0200.06716.33
5.4.110.0300.02716.60
5.4.100.0230.04716.31
5.4.90.0230.03316.63
5.4.80.0230.06016.48
5.4.70.0300.06316.45
5.4.60.0230.03316.48
5.4.50.0200.05016.33
5.4.40.0400.06016.52
5.4.30.0230.04316.32
5.4.20.0300.06016.32
5.4.10.0400.05316.54
5.4.00.0300.04015.80
5.3.290.0200.06714.57
5.3.280.0270.06714.75
5.3.270.0400.06314.84
5.3.260.0300.07014.50
5.3.250.0230.07014.52
5.3.240.0170.04314.57
5.3.230.0370.04314.64
5.3.220.0370.06014.58
5.3.210.0230.04314.65
5.3.200.0300.06714.56
5.3.190.0200.04014.65
5.3.180.0200.05014.78
5.3.170.0270.06314.53
5.3.160.0230.03314.55
5.3.150.0270.06714.55
5.3.140.0300.07314.71
5.3.130.0330.06014.46
5.3.120.0230.04714.45
5.3.110.0430.06014.66
5.3.100.0270.07314.19
5.3.90.0330.06014.19
5.3.80.0370.06014.19
5.3.70.0370.05714.19
5.3.60.0200.05014.19
5.3.50.0270.05314.19
5.3.40.0230.04014.19
5.3.30.0300.04314.19
5.3.20.0270.04714.19
5.3.10.0400.05714.19
5.3.00.0270.05714.19
5.2.170.0400.02314.19
5.2.160.0230.04014.19
5.2.150.0270.05714.19
5.2.140.0270.05314.19
5.2.130.0200.03314.19
5.2.120.0200.03714.19
5.2.110.0230.06014.19
5.2.100.0300.05714.19
5.2.90.0230.05714.19
5.2.80.0200.06314.19
5.2.70.0270.05014.19
5.2.60.0230.05014.19
5.2.50.0200.03314.19
5.2.40.0200.02714.19
5.2.30.0170.05314.19
5.2.20.0270.05314.19
5.2.10.0200.06014.19
5.2.00.0170.04014.19
5.1.60.0200.03314.19
5.1.50.0200.05014.19
5.1.40.0300.04014.19
5.1.30.0200.04714.19
5.1.20.0230.05714.19
5.1.10.0100.05314.19
5.1.00.0130.03314.19
5.0.50.0100.03014.19
5.0.40.0200.03014.19
5.0.30.0070.04014.19
5.0.20.0100.01714.19
5.0.10.0100.01714.19
5.0.00.0070.07014.19
4.4.90.0030.02714.19
4.4.80.0170.02714.19
4.4.70.0130.02314.19
4.4.60.0070.02714.19
4.4.50.0130.03314.19
4.4.40.0130.04714.19
4.4.30.0100.03714.19
4.4.20.0030.03014.19
4.4.10.0030.02014.19
4.4.00.0200.02314.19
4.3.110.0070.03014.19
4.3.100.0070.01714.19
4.3.90.0070.01714.19
4.3.80.0100.03314.19
4.3.70.0100.01714.19
4.3.60.0130.03314.19
4.3.50.0100.03314.19
4.3.40.0130.04014.19
4.3.30.0070.03314.19
4.3.20.0030.03314.19
4.3.10.0100.03014.19
4.3.00.0030.03014.19

preferences:
34.61 ms | 401 KiB | 5 Q