3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a=11; $b=&$a; echo ++$a+ ++$a; echo $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)
8.3.40.0070.01018.70
8.3.30.0070.00720.22
8.3.20.0040.00420.39
8.3.10.0040.00421.09
8.3.00.0050.00223.47
8.2.170.0100.00322.96
8.2.160.0030.01020.43
8.2.150.0030.00624.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0020.00521.04
8.2.110.0080.00019.27
8.2.100.0040.00717.78
8.2.90.0040.00419.23
8.2.80.0090.00017.97
8.2.70.0030.00617.50
8.2.60.0040.00417.80
8.2.50.0000.00818.07
8.2.40.0000.00818.16
8.2.30.0030.00619.43
8.2.20.0030.00517.76
8.2.10.0000.00817.55
8.2.00.0070.00417.67
8.1.270.0070.00023.99
8.1.260.0070.00026.35
8.1.250.0070.00028.09
8.1.240.0030.00623.79
8.1.230.0060.00620.89
8.1.220.0000.00818.77
8.1.210.0050.00319.16
8.1.200.0060.00317.23
8.1.190.0000.00717.39
8.1.180.0030.00518.10
8.1.170.0000.00918.59
8.1.160.0040.00418.81
8.1.150.0040.00418.48
8.1.140.0000.00717.29
8.1.130.0030.00317.83
8.1.120.0070.00017.25
8.1.110.0070.00017.25
8.1.100.0040.00417.34
8.1.90.0000.00717.32
8.1.80.0070.00017.42
8.1.70.0000.00717.32
8.1.60.0090.00017.49
8.1.50.0040.00417.39
8.1.40.0000.00917.41
8.1.30.0000.00817.49
8.1.20.0000.00817.69
8.1.10.0040.00417.40
8.1.00.0040.00417.29
8.0.300.0040.00419.82
8.0.290.0050.00217.18
8.0.280.0070.00018.31
8.0.270.0000.00817.17
8.0.260.0030.00316.71
8.0.250.0000.00716.82
8.0.240.0000.00716.86
8.0.230.0000.00716.73
8.0.220.0030.00616.79
8.0.210.0030.00316.72
8.0.200.0040.00416.75
8.0.190.0050.00316.88
8.0.180.0030.00316.88
8.0.170.0030.00416.77
8.0.160.0040.00416.82
8.0.150.0000.00716.72
8.0.140.0000.00716.77
8.0.130.0000.00513.19
8.0.120.0060.00316.82
8.0.110.0040.00416.85
8.0.100.0040.00416.74
8.0.90.0000.00716.77
8.0.80.0060.01016.80
8.0.70.0000.00816.76
8.0.60.0050.00316.81
8.0.50.0040.00416.88
8.0.30.0080.01317.11
8.0.20.0070.01117.40
8.0.10.0070.00016.95
8.0.00.0100.01016.74
7.4.330.0020.00216.67
7.4.320.0040.00416.55
7.4.300.0000.00716.52
7.4.290.0000.00716.51
7.4.280.0030.00316.53
7.4.270.0030.00316.33
7.4.260.0000.00513.16
7.4.250.0000.00716.54
7.4.240.0070.00016.52
7.4.230.0000.00716.57
7.4.220.0080.01216.51
7.4.210.0100.00516.43
7.4.200.0000.00716.27
7.4.190.0040.00416.61
7.4.160.0080.00816.32
7.4.150.0120.00917.40
7.4.140.0110.00817.86
7.4.130.0110.00516.52
7.4.120.0120.01216.44
7.4.110.0130.00316.62
7.4.100.0100.00716.42
7.4.90.0100.00716.32
7.4.80.0030.01319.39
7.4.70.0070.01216.42
7.4.60.0090.00616.31
7.4.50.0050.00316.25
7.4.40.0100.00322.77
7.4.30.0090.00916.51
7.4.00.0070.01014.96
7.3.330.0000.00513.24
7.3.320.0000.00512.96
7.3.310.0000.00716.30
7.3.300.0030.00316.20
7.3.290.0060.00916.20
7.3.280.0100.00716.28
7.3.270.0030.01317.40
7.3.260.0100.01118.24
7.3.250.0130.00716.36
7.3.240.0160.00716.31
7.3.230.0100.00716.54
7.3.210.0100.00616.43
7.3.200.0150.00619.39
7.3.190.0060.01416.36
7.3.180.0120.00916.31
7.3.170.0070.00716.27
7.3.160.0090.00616.29
7.3.120.0070.00714.70
7.2.330.0100.00716.34
7.2.320.0030.01716.59
7.2.310.0050.01916.50
7.2.300.0100.00716.38
7.2.290.0100.00716.63
7.2.60.0060.00916.89
7.2.00.0070.00719.14
7.1.200.0060.00315.68
7.1.100.0000.00918.16
7.1.70.0070.00717.30
7.1.60.0120.01219.17
7.1.50.0030.01716.72
7.1.00.0000.03722.36
7.0.200.0000.00716.85
7.0.140.0000.07721.96
7.0.70.0100.07319.80
7.0.60.0130.08320.05
7.0.50.0070.08720.20
7.0.40.0070.06020.03
7.0.30.0030.09020.10
7.0.20.0070.08320.09
7.0.10.0130.06320.17
7.0.00.0030.08720.08
5.6.280.0030.07321.04
5.6.220.0070.06320.66
5.6.210.0200.07320.42
5.6.200.0130.08021.04
5.6.190.0130.08321.01
5.6.180.0130.07721.17
5.6.170.0030.09321.00
5.6.160.0070.05320.95
5.6.150.0130.04021.01
5.6.140.0230.06320.95
5.6.130.0100.08321.09
5.6.120.0030.08721.07
5.6.110.0070.09021.09
5.6.100.0100.07321.08
5.6.90.0100.08720.99
5.6.80.0100.07320.40
5.6.70.0170.06320.54
5.6.60.0070.08020.45
5.6.50.0100.08020.38
5.6.40.0000.08020.37
5.6.30.0130.08020.44
5.6.20.0030.07020.28
5.6.10.0100.08320.43
5.6.00.0030.08720.35
5.5.360.0200.07720.35
5.5.350.0070.07320.37
5.5.340.0000.09020.83
5.5.330.0200.07720.85
5.5.320.0130.04720.78
5.5.310.0030.08320.91
5.5.300.0070.08320.73
5.5.290.0200.07720.81
5.5.280.0070.09020.62
5.5.270.0070.08720.84
5.5.260.0100.07320.74
5.5.250.0070.07020.63
5.5.240.0100.07720.15
5.5.230.0170.06720.27
5.5.220.0070.08020.16
5.5.210.0130.07020.30
5.5.200.0100.05720.21
5.5.190.0130.06020.20
5.5.180.0070.08320.12
5.5.160.0030.08720.17
5.5.150.0100.08020.20
5.5.140.0130.06720.22
5.5.130.0030.08020.18
5.5.120.0100.07720.09
5.5.110.0100.07720.22
5.5.100.0070.08320.07
5.5.90.0070.05320.00
5.5.80.0030.08320.05
5.5.70.0030.07020.14
5.5.60.0070.06319.92
5.5.50.0100.06020.10
5.5.40.0100.07020.04
5.5.30.0130.07320.13
5.5.20.0100.08319.92
5.5.10.0130.06019.96
5.5.00.0100.04020.10
5.4.450.0030.07019.41
5.4.440.0130.07319.23
5.4.430.0100.08319.42
5.4.420.0130.06019.51
5.4.410.0070.07719.23
5.4.400.0130.05019.05
5.4.390.0170.07019.16
5.4.380.0070.07719.14
5.4.370.0070.07318.96
5.4.360.0100.08019.04
5.4.350.0030.08719.08
5.4.340.0130.07319.22
5.4.320.0130.06318.90
5.4.310.0030.08019.23
5.4.300.0130.07319.05
5.4.290.0030.05319.09
5.4.280.0070.04019.14
5.4.270.0030.06719.07
5.4.260.0030.06018.95
5.4.250.0030.08019.09
5.4.240.0070.07319.02
5.4.230.0000.07718.90
5.4.220.0030.06019.22
5.4.210.0070.07718.89
5.4.200.0070.07718.97
5.4.190.0030.06019.11
5.4.180.0100.07318.80
5.4.170.0100.06719.06
5.4.160.0030.05318.98
5.4.150.0100.05318.94
5.4.140.0030.07716.29
5.4.130.0100.07316.08
5.4.120.0070.07016.27
5.4.110.0130.07016.45
5.4.100.0030.07716.31
5.4.90.0030.08016.26
5.4.80.0130.06716.34
5.4.70.0030.08016.41
5.4.60.0200.07016.28
5.4.50.0000.08016.19
5.4.40.0030.08016.46
5.4.30.0000.07716.38
5.4.20.0030.08016.41
5.4.10.0130.07316.34
5.4.00.0100.06715.77
5.3.290.0030.06314.63
5.3.280.0070.04714.45
5.3.270.0100.07714.57
5.3.260.0100.08314.56
5.3.250.0130.07014.46
5.3.240.0070.07714.61
5.3.230.0030.05714.45
5.3.220.0130.06014.40
5.3.210.0100.07314.52
5.3.200.0030.08014.57
5.3.190.0030.08314.54
5.3.180.0030.03714.53
5.3.170.0030.05014.42
5.3.160.0100.04714.41
5.3.150.0070.08014.54
5.3.140.0030.06314.41
5.3.130.0070.06314.50
5.3.120.0100.08014.52
5.3.110.0030.06314.48
5.3.100.0130.07014.00
5.3.90.0030.06013.87
5.3.80.0070.06714.00
5.3.70.0030.07314.00
5.3.60.0130.05713.75
5.3.50.0030.05313.88
5.3.40.0030.05313.87
5.3.30.0170.06313.91
5.3.20.0030.07013.67
5.3.10.0000.06313.51
5.3.00.0070.04013.48
5.2.170.0070.05712.38
5.2.160.0000.03712.38
5.2.150.0100.06312.38
5.2.140.0100.06012.38
5.2.130.0030.05012.38
5.2.120.0100.03712.38
5.2.110.0070.05312.38
5.2.100.0030.06712.38
5.2.90.0000.06312.38
5.2.80.0030.06712.38
5.2.70.0030.06012.38
5.2.60.0030.04712.38
5.2.50.0000.03312.38
5.2.40.0000.03012.38
5.2.30.0000.03012.38
5.2.20.0030.03012.38
5.2.10.0000.03012.38
5.2.00.0000.03012.38
5.1.60.0070.02012.38
5.1.50.0000.02712.38
5.1.40.0000.02712.38
5.1.30.0030.03712.38
5.1.20.0070.04312.38
5.1.10.0000.03012.38
5.1.00.0070.02012.38
5.0.50.0000.02012.38
5.0.40.0030.02012.38
5.0.30.0030.03012.38
5.0.20.0030.02012.38
5.0.10.0030.02712.38
5.0.00.0070.04312.38
4.4.90.0030.02712.38
4.4.80.0000.01712.38
4.4.70.0000.01712.38
4.4.60.0030.01712.38
4.4.50.0000.01712.38
4.4.40.0000.02312.38
4.4.30.0030.01312.38
4.4.20.0030.02012.38
4.4.10.0000.02012.38
4.4.00.0000.03312.38
4.3.110.0000.01712.38
4.3.100.0030.01312.38
4.3.90.0000.01712.38
4.3.80.0030.02312.38
4.3.70.0030.01312.38
4.3.60.0000.01712.38
4.3.50.0000.03312.38
4.3.40.0030.03312.38
4.3.30.0030.03712.38
4.3.20.0030.02712.38
4.3.10.0000.02012.38
4.3.00.0030.01312.38

preferences:
40.05 ms | 400 KiB | 5 Q