3v4l.org

run code in 300+ PHP versions simultaneously
<?php $f=function($a)use(&$f){ if($a==0){ return $f(1); } return 'a'; }; var_dump($f(0));

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)
8.3.40.0070.00718.69
8.3.30.0070.01019.08
8.3.20.0050.00320.39
8.3.10.0000.00821.91
8.3.00.0090.00017.38
8.2.170.0090.00622.96
8.2.160.0110.00420.37
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0000.00819.13
8.2.110.0040.00421.08
8.2.100.0090.00319.35
8.2.90.0000.00719.26
8.2.80.0000.00817.97
8.2.70.0030.00617.63
8.2.60.0000.00818.00
8.2.50.0090.00018.07
8.2.40.0060.00320.01
8.2.30.0040.00418.04
8.2.20.0000.00817.56
8.2.10.0000.00718.09
8.2.00.0040.00417.67
8.1.270.0110.00720.22
8.1.260.0060.00326.35
8.1.250.0000.00728.09
8.1.240.0040.00422.73
8.1.230.0090.00317.64
8.1.220.0040.00417.74
8.1.210.0050.00518.77
8.1.200.0000.00917.22
8.1.190.0040.00417.35
8.1.180.0040.00418.10
8.1.170.0080.00020.29
8.1.160.0070.00022.13
8.1.150.0040.00418.84
8.1.140.0040.00417.45
8.1.130.0050.00217.84
8.1.120.0050.00217.42
8.1.110.0000.00717.47
8.1.100.0040.00417.50
8.1.90.0070.00017.50
8.1.80.0040.00417.36
8.1.70.0000.00717.42
8.1.60.0030.00617.55
8.1.50.0000.00817.44
8.1.40.0040.00417.51
8.1.30.0060.00317.67
8.1.20.0020.00517.63
8.1.10.0080.00017.45
8.1.00.0060.00617.49
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0030.00318.39
8.0.270.0000.00817.20
8.0.260.0000.00617.37
8.0.250.0000.00617.00
8.0.240.0060.00016.84
8.0.230.0000.00716.85
8.0.220.0030.00316.76
8.0.210.0000.00616.80
8.0.200.0000.00616.97
8.0.190.0070.00016.78
8.0.180.0030.00316.92
8.0.170.0030.00516.94
8.0.160.0040.00416.92
8.0.150.0000.00916.70
8.0.140.0040.00416.91
8.0.130.0030.00313.32
8.0.120.0040.00416.91
8.0.110.0000.00716.96
8.0.100.0030.00316.71
8.0.90.0050.00316.77
8.0.80.0200.00016.93
8.0.70.0060.00316.71
8.0.60.0070.00016.95
8.0.50.0040.00416.77
8.0.30.0120.00917.15
8.0.20.0070.01217.40
8.0.10.0000.00816.87
8.0.00.0060.01116.62
7.4.330.0000.00815.03
7.4.320.0000.00616.61
7.4.300.0000.00616.43
7.4.290.0000.00716.59
7.4.280.0060.00316.50
7.4.270.0000.00616.43
7.4.260.0070.00016.57
7.4.250.0000.00716.39
7.4.240.0050.00216.58
7.4.230.0030.00316.62
7.4.220.0070.01116.45
7.4.210.0080.00916.62
7.4.200.0000.00716.40
7.4.160.0030.01316.48
7.4.150.0090.00917.40
7.4.140.0060.01217.86
7.4.130.0080.01216.50
7.4.120.0100.00816.39
7.4.110.0090.00916.56
7.4.100.0090.00916.50
7.4.90.0100.00716.48
7.4.80.0100.00619.39
7.4.70.0070.01116.60
7.4.60.0090.00616.30
7.4.50.0040.00016.48
7.4.40.0190.00316.61
7.4.30.0120.01016.51
7.4.00.0090.00614.69
7.3.330.0030.00313.28
7.3.320.0000.01213.16
7.3.310.0040.00416.33
7.3.300.0000.00716.29
7.3.290.0040.00416.22
7.3.280.0080.00716.29
7.3.270.0140.00917.40
7.3.260.0080.00816.39
7.3.250.0050.01616.43
7.3.240.0110.00616.41
7.3.230.0110.00716.55
7.3.210.0130.00316.25
7.3.200.0130.00319.39
7.3.190.0100.00616.31
7.3.180.0140.00616.57
7.3.170.0060.00916.62
7.3.160.0090.00616.45
7.2.330.0140.00416.70
7.2.320.0120.00616.34
7.2.310.0040.01316.56
7.2.300.0100.00616.62
7.2.290.0080.00816.56
7.2.60.0100.00716.97
7.2.00.0150.00419.14
7.1.200.0030.00715.89
7.1.100.0030.01118.00
7.1.70.0030.00616.86
7.1.60.0030.00717.14
7.1.50.0260.01334.93
7.1.00.0100.07022.36
7.0.200.0040.00716.66
7.0.140.0070.04321.95
7.0.60.0030.08021.84
7.0.50.0070.08317.88
7.0.40.0030.09020.18
7.0.30.0270.03320.24
7.0.20.0200.04720.02
7.0.10.0270.06720.06
7.0.00.0100.04020.22
5.6.280.0070.07020.89
5.6.210.0100.06720.51
5.6.200.0070.05718.19
5.6.190.0130.07720.49
5.6.180.0330.08020.46
5.6.170.0370.05320.58
5.6.160.0030.09320.39
5.6.150.0070.05018.18
5.6.140.0170.07018.20
5.6.130.0030.05318.28
5.6.120.0070.09020.99
5.6.110.0070.05320.97
5.6.100.0070.04021.04
5.6.90.0030.08721.02
5.6.80.0170.07020.39
5.5.350.0030.04020.45
5.5.340.0130.05018.07
5.5.330.0030.04720.32
5.5.320.0030.06020.35
5.5.310.0270.03720.27
5.5.300.0030.04317.95
5.5.290.0000.04718.04
5.5.280.0030.04320.88
5.5.270.0070.07320.84
5.5.260.0100.08020.77
5.5.250.0000.04320.70
5.5.240.0000.06720.16
5.4.450.0330.05019.61
5.4.440.1070.06719.40
5.4.430.0600.06019.59
5.4.420.0830.06019.37
5.4.410.0130.05318.95
5.4.400.0500.06318.83
5.4.390.0370.05018.82
5.4.380.0330.05718.75
5.4.370.0230.06318.80
5.4.360.0330.05018.62
5.4.350.0430.04718.77
5.4.340.0570.05718.56
5.4.320.0400.07318.46
5.4.310.0430.07018.70
5.4.300.0470.06718.50
5.4.290.0370.07318.78
5.4.280.0430.04318.74
5.4.270.0230.06318.62
5.4.260.0330.06018.83
5.4.250.0370.05718.78
5.4.240.0370.05018.73
5.4.230.0270.06018.55
5.4.220.0330.06018.56
5.4.210.0330.05318.77
5.4.200.0270.05316.62
5.4.190.0330.07718.73
5.4.180.0300.08018.77
5.4.170.0270.06018.59
5.4.160.0300.05718.55
5.4.150.0370.05318.70
5.4.140.0300.05016.34
5.4.130.0300.06016.29
5.4.120.0400.04716.43
5.4.110.0330.04316.30
5.4.100.0430.05016.28
5.4.90.0330.05016.29
5.4.80.0330.06016.42
5.4.70.0330.04716.26
5.4.60.0270.05316.42
5.4.50.0230.05316.40
5.4.40.0330.05716.26
5.4.30.0400.06716.16
5.4.20.0430.06016.16
5.4.10.0270.05316.38
5.4.00.0370.04315.68
5.3.290.0470.05014.63
5.3.280.0330.06014.62
5.3.270.0330.06014.64
5.3.260.0400.06014.63
5.3.250.0270.05714.82
5.3.240.0230.06014.71
5.3.230.0170.07314.63
5.3.220.0300.05314.66
5.3.210.0270.07314.76
5.3.200.0270.06014.80
5.3.190.0300.05314.70
5.3.180.0300.05714.57
5.3.170.0270.06014.54
5.3.160.0300.05714.73
5.3.150.0370.05014.65
5.3.140.0300.05314.72
5.3.130.0200.06314.76
5.3.120.0430.06014.65
5.3.110.0270.06014.59
5.3.100.0300.05314.25
5.3.90.0200.05714.05
5.3.80.0330.05014.05
5.3.70.0300.05714.02
5.3.60.0370.05013.98
5.3.50.0300.05313.96
5.3.40.0430.05013.96
5.3.30.0400.05313.97
5.3.20.0270.05313.75
5.3.10.0330.04313.78
5.3.00.0270.05313.70
5.2.170.0200.05011.28
5.2.160.0270.03711.13
5.2.150.0200.04711.17
5.2.140.0270.06011.07
5.2.130.0300.03711.07
5.2.120.0330.05011.05
5.2.110.0170.05011.09
5.2.100.0370.03311.07
5.2.90.0270.03311.08
5.2.80.0230.04011.08
5.2.70.0130.05011.14
5.2.60.0270.04011.18
5.2.50.0300.04010.95
5.2.40.0230.04010.93
5.2.30.0130.05011.01
5.2.20.0200.04011.11
5.2.10.0230.04010.97
5.2.00.0200.04010.81
5.1.60.0330.03710.11
5.1.50.0200.04710.11
5.1.40.0300.03010.12
5.1.30.0330.04310.38
5.1.20.0130.04310.33
5.1.10.0170.04010.18
5.1.00.0200.03710.06
5.0.50.0100.0338.68
5.0.40.0200.0238.44
5.0.30.0100.0578.25
5.0.20.0170.0238.38
5.0.10.0100.0338.21
5.0.00.0130.0508.19
4.4.90.0170.0175.90
4.4.80.0130.0205.89
4.4.70.0100.0235.92
4.4.60.0100.0235.86
4.4.50.0100.0275.82
4.4.40.0100.0405.85
4.4.30.0170.0205.85
4.4.20.0130.0235.95
4.4.10.0200.0235.95
4.4.00.0170.0375.96
4.3.110.0130.0205.86
4.3.100.0130.0205.77
4.3.90.0100.0235.81
4.3.80.0130.0375.79
4.3.70.0130.0175.78
4.3.60.0170.0135.80
4.3.50.0100.0205.79
4.3.40.0130.0335.79
4.3.30.0030.0235.64
4.3.20.0000.0275.64
4.3.10.0100.0235.64
4.3.00.0100.0236.82

preferences:
42.04 ms | 400 KiB | 5 Q