3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Test { public function __construct(&$x){ ++$x; echo "You sent me $x\n"; } } $a = 8; $b = &$a; $o = new Test($b); var_dump($b == $GLOBALS['b']);

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)
8.3.60.0100.00718.12
8.3.50.0080.00621.33
8.3.40.0110.00418.65
8.3.30.0070.01120.34
8.3.20.0080.00020.20
8.3.10.0040.00421.92
8.3.00.0000.00822.43
8.2.180.0110.01116.73
8.2.170.0110.00722.96
8.2.160.0120.00622.07
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0020.00526.16
8.2.120.0070.00020.80
8.2.110.0090.00921.02
8.2.100.0030.00717.91
8.2.90.0070.00319.13
8.2.80.0070.00019.33
8.2.70.0050.00317.63
8.2.60.0030.00917.43
8.2.50.0000.00818.07
8.2.40.0070.00318.15
8.2.30.0050.00219.49
8.2.20.0040.00417.71
8.2.10.0040.00417.59
8.2.00.0110.00017.73
8.1.280.0090.00925.92
8.1.270.0030.00623.99
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0100.00019.17
8.1.230.0090.00621.04
8.1.220.0040.00418.70
8.1.210.0000.00918.77
8.1.200.0030.00917.35
8.1.190.0040.00417.39
8.1.180.0040.00418.10
8.1.170.0040.00418.49
8.1.160.0120.00018.75
8.1.150.0000.00718.66
8.1.140.0040.00417.44
8.1.130.0030.00317.68
8.1.120.0030.00317.38
8.1.110.0030.00617.45
8.1.100.0050.00317.45
8.1.90.0000.00717.40
8.1.80.0000.00717.42
8.1.70.0070.00017.41
8.1.60.0000.00817.46
8.1.50.0010.01017.54
8.1.40.0050.00217.54
8.1.30.0050.00317.54
8.1.20.0040.00417.66
8.1.10.0050.00317.55
8.1.00.0080.00017.48
8.0.300.0040.00418.77
8.0.290.0040.00417.15
8.0.280.0030.00318.42
8.0.270.0030.00317.27
8.0.260.0040.00416.73
8.0.250.0050.00216.96
8.0.240.0080.00016.89
8.0.230.0030.00316.90
8.0.220.0030.00416.90
8.0.210.0070.00016.90
8.0.200.0000.00616.81
8.0.190.0060.00316.95
8.0.180.0000.00716.97
8.0.170.0050.00316.80
8.0.160.0000.00716.88
8.0.150.0000.00716.73
8.0.140.0040.00716.83
8.0.130.0030.00313.33
8.0.120.0040.00416.75
8.0.110.0000.00716.95
8.0.100.0040.00416.72
8.0.90.0050.00316.86
8.0.80.0100.01016.91
8.0.70.0070.00016.85
8.0.60.0050.00316.88
8.0.50.0000.00716.91
8.0.30.0100.00917.20
8.0.20.0060.01217.40
8.0.10.0000.00717.04
8.0.00.0100.01016.68
7.4.330.0020.00215.02
7.4.320.0060.00016.57
7.4.300.0000.00716.44
7.4.290.0030.00316.56
7.4.280.0000.00716.39
7.4.270.0030.00316.35
7.4.260.0000.00513.21
7.4.250.0040.00416.47
7.4.240.0040.00416.57
7.4.230.0000.00716.30
7.4.220.0130.00616.65
7.4.210.0110.00416.54
7.4.200.0000.00716.57
7.4.190.0040.00416.46
7.4.160.0060.01116.48
7.4.150.0060.01017.40
7.4.140.0120.00517.86
7.4.130.0050.01116.54
7.4.120.0120.00616.47
7.4.110.0070.01716.54
7.4.100.0090.00916.54
7.4.90.0030.01316.65
7.4.80.0030.01719.39
7.4.70.0060.00916.42
7.4.60.0140.00316.39
7.4.50.0040.00416.33
7.4.40.0030.01022.77
7.4.30.0130.00316.45
7.4.00.0070.00714.93
7.3.330.0020.00313.14
7.3.320.0050.00213.21
7.3.310.0030.00316.34
7.3.300.0030.00316.37
7.3.290.0070.00716.43
7.3.280.0110.00816.36
7.3.270.0130.00317.40
7.3.260.0070.01116.39
7.3.250.0110.01016.56
7.3.240.0140.00716.33
7.3.230.0120.00416.39
7.3.210.0030.01316.38
7.3.200.0150.00319.39
7.3.190.0130.00916.31
7.3.180.0100.01016.50
7.3.170.0090.00616.62
7.3.160.0160.00316.43
7.3.120.0120.00314.66
7.2.330.0120.00616.81
7.2.320.0100.00616.54
7.2.310.0070.01016.86
7.2.300.0070.01016.60
7.2.290.0060.01016.76
7.2.60.0180.00416.76
7.2.50.0110.00317.01
7.1.200.0100.00315.59
7.1.100.0120.00618.06
7.1.70.0000.00817.23
7.1.60.0180.00719.21
7.1.50.0030.02116.68
7.1.00.0030.03722.31
7.0.200.0040.00416.61
7.0.140.0000.07721.95
7.0.100.0230.04319.94
7.0.90.0270.04019.88
7.0.80.0070.08719.96
7.0.70.0130.03720.02
7.0.60.0070.04020.07
7.0.50.0170.07320.31
7.0.40.0100.04020.08
7.0.30.0070.07720.08
7.0.20.0100.08320.08
7.0.10.0100.05720.07
7.0.00.0070.07720.04
5.6.280.0030.07320.78
5.6.250.0130.05020.69
5.6.240.0100.03320.64
5.6.230.0000.07320.66
5.6.220.0100.07320.49
5.6.210.0070.05320.57
5.6.200.0070.04321.11
5.6.190.0100.06721.04
5.6.180.0000.08721.04
5.6.170.0130.07020.96
5.6.160.0070.04721.04
5.6.150.0030.05321.17
5.6.140.0100.03720.95
5.6.130.0270.03721.06
5.6.120.0200.06721.09
5.6.110.0000.04021.13
5.6.100.0070.08321.06
5.6.90.0070.08320.98
5.6.80.0100.08020.40
5.6.70.0030.05020.46
5.6.60.0100.07020.39
5.6.50.0200.06720.45
5.6.40.0230.05020.43
5.6.30.0130.04020.41
5.6.20.0100.07320.53
5.6.10.0130.04720.32
5.6.00.0030.08020.30
5.5.380.0070.07720.57
5.5.370.0000.08720.37
5.5.360.0030.07020.56
5.5.350.0030.03720.43
5.5.340.0100.03720.89
5.5.330.0030.05020.88
5.5.320.0070.04020.78
5.5.310.0000.05020.77
5.5.300.0100.07720.80
5.5.290.0100.08320.87
5.5.280.0030.06020.89
5.5.270.0170.03320.85
5.5.260.0000.08720.89
5.5.250.0170.04720.68
5.5.240.0130.05320.17
5.5.230.0070.07320.20
5.5.220.0070.06320.30
5.5.210.0070.08320.28
5.5.200.0100.03720.07
5.5.190.0100.06320.21
5.5.180.0170.07720.20
5.5.160.0100.05320.27
5.5.150.0100.05020.15
5.5.140.0100.07320.12
5.5.130.0100.05320.26
5.5.120.0070.07720.24
5.5.110.0100.07020.23
5.5.100.0030.08320.08
5.5.90.0070.06320.06
5.5.80.0170.03320.13
5.5.70.0070.07020.06
5.5.60.0100.05720.03
5.5.50.0070.07720.05
5.5.40.0070.07320.15
5.5.30.0100.06020.04
5.5.20.0030.03320.14
5.5.10.0070.03020.07
5.5.00.0030.07020.01
5.4.450.0030.06319.41
5.4.440.0030.09319.24
5.4.430.0070.06319.37
5.4.420.0100.07719.52
5.4.410.0000.05019.15
5.4.400.0100.06719.05
5.4.390.0100.05719.03
5.4.380.0030.05718.85
5.4.370.0070.04319.18
5.4.360.0100.04719.03
5.4.350.0000.06719.11
5.4.340.0030.05719.23
5.4.320.0000.08018.90
5.4.310.0070.04319.05
5.4.300.0070.05719.23
5.4.290.0100.07318.87
5.4.280.0100.03719.10
5.4.270.0030.07019.04
5.4.260.0030.07019.04
5.4.250.0030.08319.13
5.4.240.0130.07319.03
5.4.230.0100.07319.04
5.4.220.0030.06319.15
5.4.210.0030.04019.13
5.4.200.0070.04019.02
5.4.190.0070.04319.22
5.4.180.0100.02718.87
5.4.170.0000.03719.20
5.4.160.0030.07719.02
5.4.150.0070.06718.83
5.4.140.0000.04316.41
5.4.130.0000.04316.34
5.4.120.0170.02716.31
5.4.110.0030.05316.50
5.4.100.0130.06016.51
5.4.90.0100.04016.51
5.4.80.0030.04716.37
5.4.70.0030.04016.45
5.4.60.0100.05716.48
5.4.50.0100.06316.33
5.4.40.0030.04016.38
5.4.30.0000.04016.31
5.4.20.0070.06316.29
5.4.10.0170.03716.39
5.4.00.0070.05715.69
5.3.290.0030.03314.69
5.3.280.0100.06314.52
5.3.270.0070.06314.74
5.3.260.0070.07314.71
5.3.250.0000.04314.63
5.3.240.0130.07014.59
5.3.230.0200.06314.54
5.3.220.0030.07314.62
5.3.210.0100.06714.66
5.3.200.0170.06314.54
5.3.190.0100.05314.59
5.3.180.0100.06014.66
5.3.170.0100.07014.61
5.3.160.0030.06714.59
5.3.150.0030.04314.51
5.3.140.0030.07714.58
5.3.130.0000.07014.57
5.3.120.0030.05714.56
5.3.110.0030.04314.53
5.3.100.0030.06714.05
5.3.90.0030.07314.06
5.3.80.0100.06314.02
5.3.70.0030.05714.05
5.3.60.0070.03713.88
5.3.50.0030.06714.09
5.3.40.0000.05013.93
5.3.30.0070.06313.84
5.3.20.0130.03013.59
5.3.10.0070.03313.77
5.3.00.0070.03313.66
5.2.170.0000.03711.24
5.2.160.0070.06311.14
5.2.150.0030.03011.16
5.2.140.0000.04011.21
5.2.130.0070.03311.13
5.2.120.0030.05011.16
5.2.110.0030.03011.15
5.2.100.0030.04711.10
5.2.90.0070.05011.16
5.2.80.0070.06011.00
5.2.70.0070.03311.12
5.2.60.0000.03310.94
5.2.50.0100.04710.91
5.2.40.0070.05011.09
5.2.30.0130.04310.97
5.2.20.0070.02710.89
5.2.10.0100.04710.92
5.2.00.0030.03010.82
5.1.60.0000.03710.10
5.1.50.0070.0539.99
5.1.40.0070.0279.96
5.1.30.0030.02710.45
5.1.20.0000.02310.28
5.1.10.0070.02310.06
5.1.00.0030.02710.06
5.0.50.0070.0179.57
5.0.40.0030.0409.57
5.0.30.0100.0479.57
5.0.20.0130.0309.57
5.0.10.0070.0139.57
5.0.00.0030.0509.57
4.4.90.0000.0179.57
4.4.80.0000.0179.57
4.4.70.0100.0209.57
4.4.60.0030.0379.57
4.4.50.0000.0179.57
4.4.40.0070.0509.57
4.4.30.0000.0309.57
4.4.20.0030.0179.57
4.4.10.0030.0139.57
4.4.00.0030.0409.57
4.3.110.0070.0309.57
4.3.100.0000.0309.57
4.3.90.0070.0239.57
4.3.80.0030.0239.57
4.3.70.0000.0239.57
4.3.60.0030.0139.57
4.3.50.0000.0179.57
4.3.40.0000.0239.57
4.3.30.0000.0179.57
4.3.20.0000.0179.57
4.3.10.0000.0179.57
4.3.00.0030.0139.57

preferences:
40.22 ms | 400 KiB | 5 Q