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run code in 300+ PHP versions simultaneously
<?php $message = 'hello'; // Inherit by-reference $example = function () use (&$message) { $message = 'test'; var_dump($message); }; echo $example(); echo $message; $message = 'hello'; // Inherit by-reference $example2 = function () use ($message) { $message = 'test'; var_dump($message); }; echo $example2(); echo $message;

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)
8.3.60.0070.01118.55
8.3.50.0070.00718.14
8.3.40.0130.00618.71
8.3.30.0110.00419.17
8.3.20.0040.00420.21
8.3.10.0040.00421.90
8.3.00.0000.00819.21
8.2.180.0090.00616.73
8.2.170.0060.01222.96
8.2.160.0090.01222.08
8.2.150.0050.00324.18
8.2.140.0070.00024.66
8.2.130.0060.00326.16
8.2.120.0080.00019.67
8.2.110.0090.00019.23
8.2.100.0080.00317.91
8.2.90.0000.01117.84
8.2.80.0000.00817.97
8.2.70.0000.00817.93
8.2.60.0040.00417.80
8.2.50.0040.00418.10
8.2.40.0040.00420.24
8.2.30.0030.00518.04
8.2.20.0070.00017.73
8.2.10.0000.00718.09
8.2.00.0040.00417.72
8.1.270.0040.00418.88
8.1.260.0000.00726.35
8.1.250.0000.00728.09
8.1.240.0090.00322.39
8.1.230.0000.01120.92
8.1.220.0000.00917.77
8.1.210.0040.00418.89
8.1.200.0050.00317.23
8.1.190.0040.00417.13
8.1.180.0040.00418.10
8.1.170.0040.00418.46
8.1.160.0030.00322.13
8.1.150.0000.00718.89
8.1.140.0040.00419.23
8.1.130.0030.00317.74
8.1.120.0000.00717.37
8.1.110.0080.00017.48
8.1.100.0000.00817.32
8.1.90.0040.00417.38
8.1.80.0030.00517.46
8.1.70.0040.00417.48
8.1.60.0040.00417.59
8.1.50.0000.00817.47
8.1.40.0040.00417.39
8.1.30.0080.00017.64
8.1.20.0000.00817.64
8.1.10.0040.00417.55
8.1.00.0000.00817.50
8.0.300.0070.00020.03
8.0.290.0040.00416.63
8.0.280.0040.00418.44
8.0.270.0030.00317.26
8.0.260.0030.00317.25
8.0.250.0000.00616.80
8.0.240.0030.00316.96
8.0.230.0040.00416.98
8.0.220.0000.00716.94
8.0.210.0000.00716.84
8.0.200.0040.00416.98
8.0.190.0030.00616.95
8.0.180.0020.00616.90
8.0.170.0050.00316.79
8.0.160.0070.00016.95
8.0.150.0000.00716.87
8.0.140.0000.00716.73
8.0.130.0000.00513.22
8.0.120.0050.00316.83
8.0.110.0050.00216.90
8.0.100.0070.00016.75
8.0.90.0000.00716.84
8.0.80.0180.00416.88
8.0.70.0080.00016.91
8.0.60.0050.00216.69
8.0.50.0070.00016.73
8.0.30.0070.01617.06
8.0.20.0080.01117.40
8.0.10.0000.00716.98
8.0.00.0070.01116.66
7.4.330.0020.00215.03
7.4.320.0000.00716.63
7.4.300.0000.00616.49
7.4.290.0030.00316.62
7.4.280.0040.00416.50
7.4.270.0060.00016.44
7.4.260.0030.00316.59
7.4.250.0040.00416.56
7.4.240.0000.00716.50
7.4.230.0070.00016.25
7.4.220.0070.01116.50
7.4.210.0090.00916.61
7.4.200.0030.00516.59
7.4.160.0130.00616.40
7.4.150.0060.01017.40
7.4.140.0110.01017.86
7.4.130.0090.01016.44
7.4.120.0100.00716.39
7.4.110.0090.00916.37
7.4.100.0090.00916.42
7.4.90.0150.00316.46
7.4.80.0120.01119.39
7.4.70.0090.00816.38
7.4.60.0070.01016.51
7.4.50.0040.00416.34
7.4.40.0080.00816.65
7.4.30.0120.01116.36
7.4.00.0100.00715.03
7.3.330.0030.00313.28
7.3.320.0020.00213.11
7.3.310.0070.00016.32
7.3.300.0000.00716.30
7.3.290.0070.00616.31
7.3.280.0100.00616.30
7.3.270.0120.00917.40
7.3.260.0030.01416.16
7.3.250.0110.00816.33
7.3.240.0000.01716.28
7.3.230.0140.00316.39
7.3.210.0120.00616.43
7.3.200.0120.00919.39
7.3.190.0080.00816.32
7.3.180.0040.01216.31
7.3.170.0110.00716.52
7.3.160.0060.01316.43
7.2.330.0100.00716.42
7.2.320.0070.01016.39
7.2.310.0180.00716.55
7.2.300.0030.01416.45
7.2.290.0130.01016.70
7.2.60.0030.00916.58
7.2.00.0030.01319.25
7.1.200.0170.00315.62
7.1.100.0030.01018.20
7.1.70.0070.00717.07
7.1.60.0070.01719.46
7.1.50.0180.00716.71
7.1.00.0070.07022.43
7.0.200.0030.00316.88
7.0.140.0000.03722.09
7.0.60.0130.06721.72
7.0.50.0070.04017.86
7.0.40.0030.06020.17
7.0.30.0200.03720.24
7.0.20.0300.07720.07
7.0.10.0030.06020.10
7.0.00.0070.04020.33
5.6.280.0130.06020.91
5.6.210.0030.04020.73
5.6.200.0070.05018.21
5.6.190.0030.06320.41
5.6.180.0430.07320.51
5.6.170.0230.04320.55
5.6.160.0070.08320.57
5.6.150.0130.06718.12
5.6.140.0070.03718.17
5.6.130.0070.08318.19
5.6.120.0070.03721.04
5.6.110.0100.08021.02
5.6.100.0230.06320.99
5.6.90.0030.04321.11
5.6.80.0170.04720.52
5.5.350.0100.03320.41
5.5.340.0070.08017.98
5.5.330.0030.05020.57
5.5.320.0270.08020.35
5.5.310.0230.03320.34
5.5.300.0100.06317.96
5.5.290.0070.03717.94
5.5.280.0070.08720.80
5.5.270.0070.05320.80
5.5.260.0170.06720.96
5.5.250.0130.06720.50
5.5.240.0170.07720.25
5.4.450.0370.06319.53
5.4.440.0300.06019.47
5.4.430.0200.04019.38
5.4.420.0300.06719.47
5.4.410.0200.07019.37
5.4.400.0170.06019.06
5.4.390.0170.03719.06
5.4.380.0270.04019.24
5.4.370.0230.03318.99
5.4.360.0270.04319.24
5.4.350.0370.05719.15
5.4.340.0270.06319.22
5.4.320.0300.06019.20
5.4.310.0330.06719.07
5.4.300.0200.06719.06
5.4.290.0300.02719.14
5.4.280.0270.06718.95
5.4.270.0230.04318.95
5.4.260.0130.04319.04
5.4.250.0130.05719.23
5.4.240.0130.05319.16
5.4.230.0200.03319.25
5.4.220.0270.04019.13
5.4.210.0200.05719.24
5.4.200.0200.03719.14
5.4.190.0300.07019.25
5.4.180.0300.06718.98
5.4.170.0200.07319.22
5.4.160.0270.06718.93
5.4.150.0200.06319.22
5.4.140.0300.04016.41
5.4.130.0130.04716.38
5.4.120.0200.04716.45
5.4.110.0270.04316.42
5.4.100.0230.06016.23
5.4.90.0170.05016.44
5.4.80.0230.04016.50
5.4.70.0170.05316.43
5.4.60.0370.04016.61
5.4.50.0230.03316.45
5.4.40.0200.03316.47
5.4.30.0200.04016.30
5.4.20.0300.03716.50
5.4.10.0200.05016.48
5.4.00.0270.04315.80
5.3.290.0270.07014.67
5.3.280.0300.07014.64
5.3.270.0270.04014.50
5.3.260.0200.07714.65
5.3.250.0170.05714.66
5.3.240.0200.04314.76
5.3.230.0270.05014.63
5.3.220.0170.05314.57
5.3.210.0270.04314.59
5.3.200.0230.07014.62
5.3.190.0200.03714.56
5.3.180.0230.04714.71
5.3.170.0170.07014.62
5.3.160.0130.06014.71
5.3.150.0200.07714.63
5.3.140.0130.05014.59
5.3.130.0100.04314.58
5.3.120.0270.08014.57
5.3.110.0300.03314.54
5.3.100.0170.07014.05
5.3.90.0270.06714.05
5.3.80.0270.06313.94
5.3.70.0230.06714.04
5.3.60.0230.07014.06
5.3.50.0230.06014.01
5.3.40.0230.08013.90
5.3.30.0270.04013.86
5.3.20.0230.07013.75
5.3.10.0270.05013.61
5.3.00.0170.05713.64
5.2.170.0200.03011.13
5.2.160.0170.03011.09
5.2.150.0200.06011.02
5.2.140.0230.04311.15
5.2.130.0170.05711.04
5.2.120.0100.06311.03
5.2.110.0300.05310.98
5.2.100.0170.04310.98
5.2.90.0230.06010.93
5.2.80.0130.06310.95
5.2.70.0130.06010.96
5.2.60.0100.04011.12
5.2.50.0170.02710.84
5.2.40.0130.05010.96
5.2.30.0170.04010.85
5.2.20.0130.03710.86
5.2.10.0230.05310.90
5.2.00.0170.05710.72
5.1.60.0130.0339.98
5.1.50.0130.0309.90
5.1.40.0100.0609.99
5.1.30.0070.05710.35
5.1.20.0300.04310.43
5.1.10.0170.04010.10
5.1.00.0070.03310.11
5.0.50.0130.0378.56
5.0.40.0070.0438.37
5.0.30.0070.0478.24
5.0.20.0070.0438.16
5.0.10.0070.0208.23
5.0.00.0100.0608.21
4.4.90.0000.0307.79
4.4.80.0130.0137.80
4.4.70.0030.0207.85
4.4.60.0030.0177.85
4.4.50.0100.0307.86
4.4.40.0070.0337.86
4.4.30.0130.0207.86
4.4.20.0070.0337.86
4.4.10.0100.0337.86
4.4.00.0100.0507.86
4.3.110.0100.0307.86
4.3.100.0030.0277.86
4.3.90.0070.0137.86
4.3.80.0070.0277.86
4.3.70.0000.0207.86
4.3.60.0130.0277.86
4.3.50.0030.0377.86
4.3.40.0030.0377.86
4.3.30.0030.0177.86
4.3.20.0070.0177.86
4.3.10.0000.0177.86
4.3.00.0030.0377.86

preferences:
46.07 ms | 400 KiB | 5 Q