3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array(1,2,3,4,5,6,7,8,9); function walk($a, $index = 0){ if (count($a) == $index + 1) { echo($a[$index]); } else { walk($a, $index + 1); echo($a[$index]); } } walk($array);

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)
8.3.60.0070.00716.75
8.3.50.0120.00516.46
8.3.40.0070.00718.57
8.3.30.0090.00618.68
8.3.20.0110.00418.56
8.3.10.0040.00420.47
8.3.00.0080.00019.38
8.2.180.0090.01216.50
8.2.170.0150.00022.96
8.2.160.0100.00322.25
8.2.150.0050.00324.18
8.2.140.0070.00024.66
8.2.130.0050.00326.16
8.2.120.0040.00420.02
8.2.110.0070.00421.12
8.2.100.0030.00817.91
8.2.90.0040.00419.17
8.2.80.0030.00518.04
8.2.70.0040.00417.63
8.2.60.0080.00018.05
8.2.50.0030.00618.07
8.2.40.0060.00318.16
8.2.30.0000.00718.12
8.2.20.0000.00717.77
8.2.10.0060.00617.68
8.2.00.0070.00417.60
8.1.280.0030.01225.92
8.1.270.0070.00024.66
8.1.260.0080.00026.35
8.1.250.0020.00528.09
8.1.240.0060.00322.60
8.1.230.0040.00820.95
8.1.220.0030.00518.77
8.1.210.0030.00518.77
8.1.200.0060.00317.13
8.1.190.0040.00417.53
8.1.180.0030.00618.10
8.1.170.0050.00318.81
8.1.160.0030.00518.91
8.1.150.0000.00718.54
8.1.140.0040.00417.36
8.1.130.0000.00717.82
8.1.120.0000.00717.36
8.1.110.0000.00717.41
8.1.100.0040.00417.43
8.1.90.0040.00417.54
8.1.80.0050.00217.48
8.1.70.0090.00017.39
8.1.60.0050.00317.57
8.1.50.0000.00817.45
8.1.40.0030.00517.40
8.1.30.0000.00817.59
8.1.20.0000.00817.55
8.1.10.0000.00717.54
8.1.00.0060.00317.36
8.0.300.0060.00319.98
8.0.290.0030.00516.63
8.0.280.0030.00318.49
8.0.270.0050.00317.16
8.0.260.0060.00016.74
8.0.250.0000.00816.82
8.0.240.0000.01216.84
8.0.230.0040.00416.87
8.0.220.0000.00716.85
8.0.210.0000.00716.73
8.0.200.0000.00716.81
8.0.190.0040.00416.85
8.0.180.0070.00016.72
8.0.170.0030.00716.82
8.0.160.0050.00316.85
8.0.150.0000.00716.86
8.0.140.0070.00016.81
8.0.130.0030.00313.32
8.0.120.0040.00416.89
8.0.110.0000.00716.71
8.0.100.0000.00716.92
8.0.90.0040.00416.89
8.0.80.0060.00916.77
8.0.70.0000.00716.76
8.0.60.0040.00416.95
8.0.50.0000.00816.84
8.0.30.0100.01217.10
8.0.20.0070.01217.18
8.0.10.0020.00517.03
8.0.00.0080.01216.58
7.4.330.0050.00012.99
7.4.320.0040.00416.43
7.4.300.0060.00016.48
7.4.290.0040.00416.59
7.4.280.0030.00716.56
7.4.270.0030.00316.56
7.4.260.0060.00013.27
7.4.250.0060.00316.58
7.4.240.0070.00016.57
7.4.230.0000.00716.68
7.4.220.0120.00916.54
7.4.210.0090.00716.55
7.4.200.0000.00716.40
7.4.190.0030.00316.76
7.4.160.0110.00516.46
7.4.150.0070.01116.39
7.4.140.0100.01316.41
7.4.130.0120.00516.58
7.4.120.0050.01216.46
7.4.110.0090.00916.72
7.4.100.0100.00716.55
7.4.90.0130.00316.52
7.4.80.0080.00816.45
7.4.70.0000.01616.62
7.4.60.0030.01416.40
7.4.50.0000.00516.24
7.4.40.0000.01216.59
7.4.30.0100.00716.58
7.4.00.0060.01015.12
7.3.330.0030.00313.29
7.3.320.0050.00013.12
7.3.310.0000.00716.32
7.3.300.0050.00216.40
7.3.290.0090.00516.34
7.3.280.0060.01016.27
7.3.270.0150.00416.47
7.3.260.0140.00916.45
7.3.250.0140.01016.44
7.3.240.0050.01016.45
7.3.230.0130.00316.38
7.3.210.0140.00316.59
7.3.200.0080.00819.39
7.3.190.0100.01016.47
7.3.180.0130.00616.48
7.3.170.0060.00916.37
7.3.160.0160.00016.54
7.3.120.0030.00714.85
7.2.330.0060.01216.57
7.2.320.0080.00816.64
7.2.310.0170.00616.57
7.2.300.0080.01216.81
7.2.290.0070.01016.43
7.2.00.0030.00619.42
7.1.100.0030.00917.91
7.1.70.0060.00317.08
7.1.60.0110.01419.40
7.1.50.0110.01116.96
7.1.00.0070.06022.27
7.0.200.0030.00516.77
7.0.140.0000.07722.00
7.0.120.0100.06022.00
7.0.60.0070.07019.96
7.0.50.0100.06717.88
7.0.40.0070.08320.41
7.0.30.0230.04020.08
7.0.20.0300.07320.06
7.0.10.0070.06720.07
7.0.00.0070.05020.07
5.6.280.0030.07320.89
5.6.210.0100.03720.62
5.6.200.0030.04018.12
5.6.190.0030.04720.79
5.6.180.0400.06320.65
5.6.170.0300.05720.46
5.6.160.0100.08320.52
5.6.150.0030.04318.20
5.6.140.0070.05718.28
5.6.130.0100.08318.29
5.6.120.0030.05720.97
5.6.110.0070.06020.99
5.6.100.0130.07021.01
5.6.90.0070.09021.07
5.6.80.0100.08020.29
5.5.350.0100.06720.38
5.5.340.0070.08318.03
5.5.330.0100.04720.27
5.5.320.0100.07720.23
5.5.310.0330.07320.36
5.5.300.0100.07717.95
5.5.290.0100.08317.99
5.5.280.0100.07020.74
5.5.270.0030.04320.79
5.5.260.0030.08720.73
5.5.250.0170.02720.61
5.5.240.0300.06720.23
5.4.450.0030.04719.53
5.4.440.0070.08719.41
5.4.430.0030.08019.28
5.4.420.0000.05319.47
5.4.410.0030.08319.35
5.4.400.0130.06019.16
5.4.390.0070.04319.15
5.4.380.0130.07319.14
5.4.370.0030.07719.15
5.4.360.0100.06718.85
5.4.350.0000.04319.14
5.4.340.0100.07719.20
5.4.320.0130.06019.09
5.4.310.0070.04718.98
5.4.300.0070.08319.23
5.4.290.0100.05019.24
5.4.280.0070.07719.15
5.4.270.0130.06018.98
5.4.260.0130.06018.98
5.4.250.0030.05718.84
5.4.240.0130.05318.93
5.4.230.0100.06719.15
5.4.220.0070.07719.08
5.4.210.0030.06018.86
5.4.200.0100.05018.84
5.4.190.0100.03719.25
5.4.180.0070.08319.10
5.4.170.0030.04018.84
5.4.160.0100.03718.90
5.4.150.0130.06719.08
5.4.140.0070.06716.50
5.4.130.0100.06716.40
5.4.120.0070.07716.34
5.4.110.0070.06716.39
5.4.100.0030.08016.37
5.4.90.0070.07316.44
5.4.80.0100.04016.41
5.4.70.0030.05016.36
5.4.60.0070.08016.64
5.4.50.0070.03316.38
5.4.40.0030.03716.30
5.4.30.0070.03316.40
5.4.20.0070.03016.25
5.4.10.0030.03316.38
5.4.00.0030.03315.75
5.3.290.0030.07714.71
5.3.280.0070.06314.73
5.3.270.0070.04314.75
5.3.260.0100.07314.75
5.3.250.0070.07714.65
5.3.240.0000.07314.50
5.3.230.0130.07014.64
5.3.220.0070.07314.58
5.3.210.0030.07714.71
5.3.200.0100.07314.57
5.3.190.0070.08014.56
5.3.180.0030.04714.48
5.3.170.0070.03314.60
5.3.160.0100.06314.45
5.3.150.0130.04014.55
5.3.140.0100.03014.55
5.3.130.0130.02714.69
5.3.120.0130.02714.60
5.3.110.0030.03714.59
5.3.100.0000.03714.20
5.3.90.0000.03713.91
5.3.80.0070.03014.07
5.3.70.0030.03314.07
5.3.60.0000.04014.05
5.3.50.0000.03714.13
5.3.40.0000.03714.02
5.3.30.0100.02713.88
5.3.20.0030.04313.70
5.3.10.0030.03313.55
5.3.00.0070.03013.64
5.2.170.0000.03011.14
5.2.160.0000.03011.18
5.2.150.0070.02311.04
5.2.140.0030.03311.19
5.2.130.0000.03011.11
5.2.120.0070.04311.05
5.2.110.0000.03011.26
5.2.100.0000.03011.00
5.2.90.0000.03011.25
5.2.80.0070.03011.10
5.2.70.0030.03011.17
5.2.60.0000.03011.05
5.2.50.0030.03010.94
5.2.40.0070.02311.00
5.2.30.0030.02710.97
5.2.20.0030.02711.01
5.2.10.0030.02710.86
5.2.00.0030.02710.74
5.1.60.0000.0309.95
5.1.50.0000.02710.00
5.1.40.0030.0209.99
5.1.30.0030.03010.41
5.1.20.0100.01710.31
5.1.10.0030.02310.14
5.1.00.0000.02710.04
5.0.50.0030.0178.53
5.0.40.0000.0208.43
5.0.30.0000.0308.20
5.0.20.0000.0208.25
5.0.10.0000.0208.25
5.0.00.0070.0308.21
4.4.90.0000.0207.54
4.4.80.0000.0177.54
4.4.70.0000.0177.54
4.4.60.0030.0177.54
4.4.50.0000.0137.54
4.4.40.0000.0237.54
4.4.30.0070.0107.54
4.4.20.0030.0137.54
4.4.10.0030.0137.54
4.4.00.0070.0177.54
4.3.110.0070.0137.54
4.3.100.0030.0137.54
4.3.90.0000.0137.54
4.3.80.0000.0237.54
4.3.70.0000.0137.54
4.3.60.0000.0137.54
4.3.50.0000.0177.54
4.3.40.0000.0277.54
4.3.30.0030.0107.54
4.3.20.0000.0207.54
4.3.10.0000.0177.54
4.3.00.0000.0377.54

preferences:
40.24 ms | 401 KiB | 5 Q