3v4l.org

run code in 300+ PHP versions simultaneously
<?php function a($n){ b($n); return ($n * $n); } function b(&$n){ $n++; } echo a(5);

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)
8.3.40.0040.01118.85
8.3.30.0040.01118.96
8.3.20.0070.00019.96
8.3.10.0070.00022.09
8.3.00.0080.00022.52
8.2.170.0140.00722.96
8.2.160.0150.00020.66
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0050.00226.16
8.2.120.0000.00819.36
8.2.110.0130.00322.20
8.2.100.0040.00717.84
8.2.90.0040.00419.13
8.2.80.0100.00018.03
8.2.70.0080.00017.50
8.2.60.0000.01018.04
8.2.50.0060.00618.07
8.2.40.0040.00418.22
8.2.30.0000.00717.93
8.2.20.0030.00517.57
8.2.10.0050.00319.34
8.2.00.0030.00617.54
8.1.270.0040.00422.00
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0060.00324.02
8.1.230.0070.00318.97
8.1.220.0050.00317.74
8.1.210.0060.00318.77
8.1.200.0060.00317.36
8.1.190.0000.00917.40
8.1.180.0000.00918.10
8.1.170.0080.00018.52
8.1.160.0040.00421.94
8.1.150.0040.00418.59
8.1.140.0070.00017.38
8.1.130.0000.00717.82
8.1.120.0000.00717.32
8.1.110.0040.00417.44
8.1.100.0000.00717.29
8.1.90.0030.00517.31
8.1.80.0070.00017.34
8.1.70.0000.00717.29
8.1.60.0050.00317.56
8.1.50.0040.00417.44
8.1.40.0030.00617.53
8.1.30.0040.00417.46
8.1.20.0030.00617.64
8.1.10.0040.00417.50
8.1.00.0000.00817.37
8.0.300.0050.00318.77
8.0.290.0040.00417.18
8.0.280.0030.00318.32
8.0.270.0030.00317.21
8.0.260.0060.00016.73
8.0.250.0000.00616.94
8.0.240.0000.00716.84
8.0.230.0000.00716.83
8.0.220.0030.00316.75
8.0.210.0040.00416.70
8.0.200.0030.00316.95
8.0.190.0050.00216.89
8.0.180.0000.00816.88
8.0.170.0000.00716.84
8.0.160.0000.00816.79
8.0.150.0080.00016.72
8.0.140.0040.00416.76
8.0.130.0030.00313.29
8.0.120.0040.00416.78
8.0.110.0040.00416.68
8.0.100.0030.00316.80
8.0.90.0070.00016.79
8.0.80.0100.00716.88
8.0.70.0000.00716.83
8.0.60.0030.00316.65
8.0.50.0000.00716.67
8.0.30.0090.00917.14
8.0.20.0120.00617.40
8.0.10.0000.00716.98
8.0.00.0050.01216.63
7.4.330.0000.00615.00
7.4.320.0030.00316.44
7.4.300.0000.00716.58
7.4.290.0000.00716.50
7.4.280.0030.00516.48
7.4.270.0030.00716.57
7.4.260.0020.00516.55
7.4.250.0040.00416.49
7.4.240.0000.00716.51
7.4.230.0000.00716.61
7.4.220.0090.00616.48
7.4.210.0050.01016.60
7.4.200.0000.00716.54
7.4.190.0000.00716.47
7.4.160.0090.00616.56
7.4.150.0140.00317.40
7.4.140.0160.00517.86
7.4.130.0100.00716.44
7.4.120.0120.00516.38
7.4.110.0080.00816.66
7.4.100.0140.00416.59
7.4.90.0090.00916.42
7.4.80.0120.00919.39
7.4.70.0100.01016.57
7.4.60.0000.01716.32
7.4.50.0040.00416.39
7.4.40.0120.00322.77
7.4.30.0130.00316.46
7.4.00.0140.00415.16
7.3.330.0080.00013.29
7.3.320.0000.00513.32
7.3.310.0000.00616.29
7.3.300.0040.00416.34
7.3.290.0140.00016.25
7.3.280.0090.01016.28
7.3.270.0100.00717.40
7.3.260.0190.00616.46
7.3.250.0070.01016.38
7.3.240.0160.00016.41
7.3.230.0160.00616.57
7.3.210.0030.01416.33
7.3.200.0070.01116.34
7.3.190.0100.00616.32
7.3.180.0070.01016.20
7.3.170.0090.00716.33
7.3.160.0060.01616.57
7.3.120.0000.01315.01
7.2.330.0170.00016.65
7.2.320.0070.01116.64
7.2.310.0100.00716.63
7.2.300.0070.01116.77
7.2.290.0030.01816.48
7.1.70.0000.00916.75
7.1.60.0100.01319.82
7.1.50.0130.01316.86
7.1.00.0070.07322.36
7.0.200.0070.00716.80
7.0.140.0000.07721.98
7.0.60.0100.08020.02
7.0.50.0030.05717.90
7.0.40.0070.08320.25
7.0.30.0170.04020.34
7.0.20.0230.08320.23
7.0.10.0070.04320.10
7.0.00.0100.07720.25
5.6.280.0000.07720.93
5.6.210.0070.08320.57
5.6.200.0030.08718.25
5.6.190.0070.08020.68
5.6.180.0200.04320.61
5.6.170.0330.06320.71
5.6.160.0130.06020.54
5.6.150.0030.04018.17
5.6.140.0030.08318.18
5.6.130.0070.08718.23
5.6.120.0000.04721.13
5.6.110.0070.09021.12
5.6.100.0170.08320.96
5.6.90.0100.08321.12
5.6.80.0030.08320.48
5.6.70.4570.03320.29
5.5.350.0000.05320.37
5.5.340.0170.06718.09
5.5.330.0070.05020.28
5.5.320.0030.05020.34
5.5.310.0270.08020.34
5.5.300.0100.08017.99
5.5.290.0100.07317.98
5.5.280.0030.04720.88
5.5.270.0130.08320.66
5.5.260.0130.05720.76
5.5.250.0070.08320.75
5.5.240.0200.06720.13
5.4.450.2130.04319.42
5.4.440.1900.04019.41
5.4.430.1870.03719.54
5.4.420.1930.03719.47
5.4.410.1870.04019.39
5.4.400.2130.03719.25
5.4.390.2100.03019.15
5.4.380.1970.04019.09
5.4.370.2030.05019.32
5.4.360.0070.03319.19
5.4.350.0070.03718.98
5.4.340.0100.04019.16
5.4.320.1100.06019.23
5.4.310.1870.03718.94
5.4.300.1970.03019.09
5.4.290.1930.03319.24
5.4.280.1870.04018.95
5.4.270.2070.03718.87
5.4.260.2270.04019.22
5.4.250.2030.03319.21
5.4.240.2100.02719.08
5.4.230.2070.03719.13
5.4.220.2200.04719.08
5.4.210.2230.05018.86
5.4.200.2170.03718.83
5.4.190.2070.04719.07
5.4.180.2030.05018.83
5.4.170.2030.04719.16
5.4.160.1970.04719.20
5.4.150.2070.04318.88
5.4.140.1930.03316.55
5.4.130.2030.04316.40
5.4.120.1500.04016.38
5.4.110.0000.04716.50
5.4.100.0070.06016.56
5.4.90.1270.03716.30
5.4.80.2170.03316.32
5.4.70.1970.04016.62
5.4.60.1970.03316.54
5.4.50.2170.03716.53
5.4.40.2070.04016.37
5.4.30.2000.03716.25
5.4.20.2030.04316.53
5.4.10.2070.04316.53
5.4.00.2070.04015.75
5.3.290.1400.04314.56
5.3.280.0070.07714.66
5.3.270.0000.08714.69
5.3.260.0630.04014.51
5.3.250.1930.03714.57
5.3.240.1930.03714.61
5.3.230.2130.04014.57
5.3.220.2300.04314.48
5.3.210.2170.04314.48
5.3.200.2230.04014.57
5.3.190.2030.04314.58
5.3.180.2230.03714.71
5.3.170.2130.04714.48
5.3.160.2030.03314.73
5.3.150.1900.03314.71
5.3.140.2000.04714.78
5.3.130.1970.03714.56
5.3.120.2130.03714.52
5.3.110.2070.03314.46
5.3.100.2200.04314.18
5.3.90.2000.03014.04
5.3.80.2330.04014.12
5.3.70.2130.04313.94
5.3.60.1000.04713.93
5.3.50.0070.07313.86
5.3.40.0070.04713.87
5.3.30.1430.04313.99
5.3.20.1900.04013.60
5.3.10.2270.04013.74
5.3.00.2030.03713.66
5.2.170.1700.03011.26
5.2.160.1700.02311.15
5.2.150.1730.03711.26
5.2.140.1630.03311.26
5.2.130.1570.03011.32
5.2.120.1900.03011.00
5.2.110.1700.02311.00
5.2.100.1930.03011.03
5.2.90.1630.02311.11
5.2.80.1530.03311.01
5.2.70.1600.03311.32
5.2.60.1700.03310.96
5.2.50.1870.03010.93
5.2.40.1230.03011.12
5.2.30.1330.03010.88
5.2.20.1370.03010.88
5.2.10.1530.03010.83
5.2.00.1370.03010.80
5.1.60.1270.0239.97
5.1.50.1470.0339.97
5.1.40.1370.0279.96
5.1.30.0700.03310.24
5.1.20.0030.03010.32
5.1.10.0000.03010.05
5.1.00.0070.0509.97
5.0.50.0030.0208.48
5.0.40.0870.0238.30
5.0.30.0670.0478.38
5.0.20.0830.0308.11
5.0.10.0700.0278.25
5.0.00.0630.0308.07
4.4.90.0730.0177.84
4.4.80.0670.0237.84
4.4.70.0730.0177.84
4.4.60.0870.0207.84
4.4.50.0630.0207.84
4.4.40.0670.0307.84
4.4.30.0470.0207.84
4.4.20.0730.0207.84
4.4.10.0630.0177.84
4.4.00.0600.0277.84
4.3.110.0600.0177.84
4.3.100.0630.0137.84
4.3.90.0630.0137.84
4.3.80.0470.0277.84
4.3.70.0630.0137.84
4.3.60.0430.0177.84
4.3.50.0470.0177.84
4.3.40.0100.0277.84
4.3.30.0000.0177.84
4.3.20.0000.0177.84
4.3.10.0000.0177.84
4.3.00.0000.0177.84

preferences:
38.11 ms | 400 KiB | 5 Q