3v4l.org

run code in 300+ PHP versions simultaneously
<?php function a($depth = 0) { //return last backtrace call. If backtrace bigger then 3, return third call. if($depth === 1000) { debug_backtrace(false, 3); } return a(++$depth, str_repeat("a", 1000)); } var_dump(a());

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)
8.3.60.0400.01379.92
8.3.50.0320.01280.16
8.3.40.0340.01748.21
8.3.30.0240.01748.54
8.3.20.0210.00349.66
8.3.10.0090.00649.98
8.3.00.0190.00050.35
8.2.180.0810.01079.75
8.2.170.0330.01048.19
8.2.160.0200.01648.61
8.2.150.0140.01048.05
8.2.140.0180.00749.85
8.2.130.0330.01049.96
8.2.120.0200.00047.09
8.2.110.0250.00449.79
8.2.100.0170.01747.29
8.2.90.0130.00747.53
8.2.80.0170.00347.18
8.2.70.0120.00947.00
8.2.60.0120.00947.05
8.2.50.0150.00746.88
8.2.40.0170.00347.47
8.2.30.0070.01347.41
8.2.20.0160.00347.01
8.2.10.0070.01147.24
8.2.00.0150.00747.09
8.1.280.0890.01079.63
8.1.270.0210.00451.56
8.1.260.0180.00751.42
8.1.250.0130.01051.45
8.1.240.0240.00351.57
8.1.230.0100.02350.22
8.1.220.0230.00047.01
8.1.210.0160.00648.10
8.1.200.0160.00646.60
8.1.190.0180.00746.77
8.1.180.0130.00847.90
8.1.170.0110.01147.90
8.1.160.0160.00651.46
8.1.150.0130.00748.02
8.1.140.0130.00746.79
8.1.130.0190.00047.15
8.1.120.0070.01146.88
8.1.110.0100.01046.70
8.1.100.0130.00646.68
8.1.90.0070.01146.85
8.1.80.0110.00746.79
8.1.70.0140.00446.79
8.1.60.0140.00746.90
8.1.50.0150.00646.93
8.1.40.0140.00746.95
8.1.30.0130.00747.00
8.1.20.0140.00746.88
8.1.10.0270.00780.68
8.1.00.0350.00080.52
8.0.300.0340.00683.29
8.0.290.0230.01080.05
8.0.280.0200.01481.48
8.0.270.0260.01080.28
8.0.260.0260.01379.79
8.0.250.0160.01679.90
8.0.240.0280.00379.94
8.0.230.0310.00379.87
8.0.220.0130.01779.84
8.0.210.0230.01079.89
8.0.200.0250.00779.98
8.0.190.0270.01779.93
8.0.180.0230.01079.89
8.0.170.0190.01679.91
8.0.160.0270.00779.92
8.0.150.0280.00379.91
8.0.140.0260.01079.89
8.0.130.0380.017136.07
8.0.120.0350.00079.94
8.0.110.0270.00379.77
8.0.100.0260.00679.76
8.0.90.0230.01079.98
8.0.80.0460.02679.88
8.0.70.0240.01079.73
8.0.60.0270.00779.73
8.0.50.0280.00679.67
8.0.30.0760.01480.35
8.0.20.0770.01880.13
8.0.10.0270.00780.02
8.0.00.0620.02880.05
7.4.330.0230.01076.33
7.4.320.0260.00479.54
7.4.300.0240.00779.54
7.4.290.0320.00379.63
7.4.280.0100.02479.61
7.4.270.0220.01279.71
7.4.260.0230.01079.58
7.4.250.0270.00779.42
7.4.240.0240.01079.50
7.4.230.0220.00979.54
7.4.220.0690.03979.65
7.4.210.0570.02379.57
7.4.200.0250.00779.66
7.4.190.0220.01279.42
7.4.160.0770.01279.64
7.4.150.0870.04079.55
7.4.140.0660.03179.54
7.4.130.0650.03079.57
7.4.120.0630.02679.68
7.4.110.0590.02979.37
7.4.100.0710.02379.42
7.4.90.0850.02979.43
7.4.80.0500.04779.79
7.4.70.0550.03279.60
7.4.60.0620.02879.65
7.4.50.0200.01779.69
7.4.40.0240.02479.39
7.4.30.0510.03579.64
7.4.00.0300.02377.75
7.3.330.0360.020136.20
7.3.320.0450.010136.14
7.3.310.0270.00779.41
7.3.300.0230.01079.38
7.3.290.0500.04079.44
7.3.280.0520.03079.36
7.3.270.0680.02379.64
7.3.260.0770.01479.34
7.3.250.0660.02479.45
7.3.240.0530.03079.66
7.3.230.0600.02579.39
7.3.210.0700.02079.62
7.3.200.0650.03979.52
7.3.190.0570.05079.73
7.3.180.0580.02679.61
7.3.170.0610.02679.52
7.3.160.0750.02979.59
7.3.120.0390.01678.02
7.3.10.0290.01278.55
7.3.00.1180.02078.52
7.2.330.0560.03679.59
7.2.320.0600.02979.64
7.2.310.0560.03379.59
7.2.300.0700.01679.93
7.2.290.0640.02879.89
7.2.130.0780.02378.81
7.2.120.0170.01178.63
7.2.110.2180.01778.75
7.2.100.1820.01978.60
7.2.90.0430.02178.70
7.2.80.1410.00979.01
7.2.70.2170.02078.86
7.2.60.2270.01378.83
7.2.50.0510.02178.70
7.2.40.2420.03178.68
7.2.30.1270.02178.99
7.2.20.2040.02778.47
7.2.10.2160.02078.66
7.2.00.6550.02379.93
7.1.250.1330.02777.39
7.1.200.0930.01777.87
7.1.100.0100.01779.95
7.1.70.1400.01078.78
7.1.60.0280.00978.86
7.1.50.0290.01275.16
7.1.00.0100.08784.22
7.0.200.1760.00778.82
7.0.140.0270.07084.08
7.0.60.0300.10083.08
7.0.50.0270.07081.10
7.0.40.0170.04020.40
7.0.30.0330.05720.08
7.0.20.0230.04320.24
7.0.10.0430.08320.24
7.0.00.0130.09720.15
5.6.280.0200.10085.61
5.6.210.0170.11085.42
5.6.200.0330.04082.77
5.6.190.0430.04385.05
5.6.180.3330.05385.18
5.6.170.0330.05385.04
5.6.160.0200.09084.87
5.6.150.0370.09382.82
5.6.140.0230.05782.86
5.6.130.0400.08382.83
5.6.120.0330.09085.69
5.6.110.0170.10385.57
5.6.100.0370.08385.69
5.6.90.0370.09385.70
5.6.80.0370.08785.11
5.6.70.0470.08085.21
5.5.350.0330.09085.07
5.5.340.0200.11382.63
5.5.330.0300.10784.72
5.5.320.0570.08784.79
5.5.310.0230.06084.83
5.5.300.0370.09382.73
5.5.290.0300.05782.70
5.5.280.0230.07085.61
5.5.270.0500.08085.50
5.5.260.0400.10385.57
5.5.250.0430.08385.27
5.5.240.0300.05085.07
5.4.450.0600.08783.84
5.4.440.0270.06784.04
5.4.430.0400.05084.08
5.4.420.0430.05383.81
5.4.410.0430.04783.91
5.4.400.0470.04383.59
5.4.390.0470.05783.48
5.4.380.0600.08783.96
5.4.370.0430.04083.73
5.4.360.0430.08783.63
5.4.350.0730.08383.76
5.4.340.0600.08783.63
5.4.320.0300.06383.73
5.4.310.0300.05783.70
5.4.300.0330.05083.87
5.4.290.0670.08383.70
5.4.280.0330.06083.75
5.4.270.0530.09783.95
5.4.260.0500.07083.86
5.4.250.0630.03783.60
5.4.240.0530.09783.72
5.4.230.0370.07383.76
5.4.220.0530.09083.51
5.4.210.0330.05383.62
5.4.200.0330.05783.66
5.4.190.0700.08783.69
5.4.180.0600.09783.75
5.4.170.0370.06083.69
5.4.160.0530.05083.86
5.4.150.0730.08783.74
5.4.140.0370.07081.21
5.4.130.0370.04381.08
5.4.120.0300.05081.18
5.4.110.0200.06381.14
5.4.100.0300.05081.07
5.4.90.0330.04781.14
5.4.80.0430.05381.23
5.4.70.0330.04781.11
5.4.60.0300.05081.12
5.4.50.0370.05081.06
5.4.40.0370.04381.13
5.4.30.0270.05381.14
5.4.20.0230.05781.22
5.4.10.0430.05781.07
5.4.00.0270.06380.46
5.3.290.0370.05078.39
5.3.280.0370.05078.18
5.3.270.0370.05078.01
5.3.260.0270.05778.16
5.3.250.0370.04778.02
5.3.240.0370.05078.09
5.3.230.0430.05778.10
5.3.220.0500.05378.21
5.3.210.0530.03078.15
5.3.200.0300.05078.08
5.3.190.0330.04778.07
5.3.180.0130.05777.99
5.3.170.0300.05377.97
5.3.160.0330.05078.15
5.3.150.0330.05078.18
5.3.140.0300.05378.11
5.3.130.0400.04378.05
5.3.120.0370.05778.05
5.3.110.0370.05078.13
5.3.100.0400.04377.54
5.3.90.0300.05077.46
5.3.80.0330.06377.36
5.3.70.0400.05777.43
5.3.60.0400.04777.58
5.3.50.0330.05077.33
5.3.40.0530.03077.80
5.3.30.0500.05377.26
5.3.20.0400.06377.19
5.3.10.0370.04377.19
5.3.00.0230.06077.49
5.2.170.0170.03736.87
5.2.160.0100.04336.62
5.2.150.0230.03036.68
5.2.140.0200.03336.72
5.2.130.0200.03736.55
5.2.120.0200.04036.59
5.2.110.0230.04036.46
5.2.100.0230.04336.74
5.2.90.0130.04336.64
5.2.80.0200.03736.64
5.2.70.0170.04036.69
5.2.60.0170.04036.50
5.2.50.0200.03736.42
5.2.40.0270.04736.54
5.2.30.0230.02736.44
5.2.20.0130.05036.64
5.2.10.0230.05739.03
5.2.00.0230.03336.18
5.1.60.0200.03338.26
5.1.50.0200.03037.92
5.1.40.0200.03037.93
5.1.30.0230.02738.50
5.1.20.0170.03337.46
5.1.10.0230.02737.20
5.1.00.0170.03337.00
5.0.50.0170.03034.31
5.0.40.0270.05034.02
5.0.30.0300.04334.01
5.0.20.0200.02333.81
5.0.10.0070.03733.79
5.0.00.0200.05366.84
4.4.90.0070.03317.62
4.4.80.0200.02017.47
4.4.70.0170.03017.54
4.4.60.0200.02717.61
4.4.50.0070.03317.52
4.4.40.0070.04317.54
4.4.30.0130.02317.64
4.4.20.0130.02317.57
4.4.10.0130.02017.62
4.4.00.0170.05717.56
4.3.110.0170.04723.04
4.3.100.0200.04022.67
4.3.90.0230.03322.64
4.3.80.0170.03333.59
4.3.70.0130.04322.53
4.3.60.0170.04022.59
4.3.50.0200.03722.63
4.3.40.0170.02724.27
4.3.30.0070.02723.20
4.3.20.0030.04716.09
4.3.10.0070.02723.07
4.3.00.0070.02723.02

preferences:
42.91 ms | 400 KiB | 5 Q