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 = 9){ if (0 == $index -1) { echo($a[$index]); } else { echo($a[$index]); walk($a, $index -1); } } walk($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)
8.3.60.0030.01318.43
8.3.50.0040.01316.47
8.3.40.0070.00718.84
8.3.30.0070.01118.48
8.3.20.0060.00318.77
8.3.10.0060.00318.92
8.3.00.0060.00319.15
8.2.180.0030.01316.75
8.2.170.0070.01022.96
8.2.160.0040.01119.02
8.2.150.0100.00725.66
8.2.140.0040.00424.66
8.2.130.0000.00926.16
8.2.120.0040.00717.88
8.2.110.0100.00022.11
8.2.100.0120.00017.59
8.2.90.0000.00817.86
8.2.80.0060.00318.61
8.2.70.0040.00417.75
8.2.60.0000.00817.75
8.2.50.0040.00417.93
8.2.40.0000.00919.60
8.2.30.0040.00417.68
8.2.20.0060.00317.64
8.2.10.0040.00417.68
8.2.00.0040.00417.59
8.1.280.0140.00725.92
8.1.270.0040.00423.99
8.1.260.0030.00526.35
8.1.250.0020.00528.09
8.1.240.0090.00023.88
8.1.230.0030.00719.10
8.1.220.0050.00318.62
8.1.210.0040.00418.77
8.1.200.0030.00617.13
8.1.190.0000.00817.13
8.1.180.0000.01118.10
8.1.170.0080.00017.62
8.1.160.0070.00319.04
8.1.150.0000.00818.70
8.1.140.0000.00717.50
8.1.130.0040.00419.24
8.1.120.0040.00417.37
8.1.110.0040.00417.45
8.1.100.0050.00217.41
8.1.90.0000.00717.38
8.1.80.0040.00417.46
8.1.70.0000.00717.40
8.1.60.0040.00417.56
8.1.50.0040.00417.40
8.1.40.0000.01017.52
8.1.30.0000.00817.64
8.1.20.0000.00717.63
8.1.10.0000.00817.63
8.1.00.0080.00317.38
8.0.300.0000.00818.77
8.0.290.0030.00516.88
8.0.280.0030.00318.55
8.0.270.0030.00317.29
8.0.260.0000.00716.83
8.0.250.0040.00416.87
8.0.240.0040.00417.02
8.0.230.0000.00716.85
8.0.220.0000.00716.77
8.0.210.0000.00716.77
8.0.200.0000.00616.94
8.0.190.0020.00516.83
8.0.180.0060.00616.96
8.0.170.0000.00816.71
8.0.160.0030.00316.84
8.0.150.0050.00216.81
8.0.140.0000.01116.89
8.0.130.0000.00613.32
8.0.120.0040.00416.84
8.0.110.0030.00516.81
8.0.100.0000.00716.93
8.0.90.0000.00717.00
8.0.80.0100.01016.92
8.0.70.0000.00716.94
8.0.60.0050.00316.79
8.0.50.0050.00517.00
8.0.30.0130.00617.17
8.0.20.0120.00817.22
8.0.10.0000.00717.07
8.0.00.0080.01116.81
7.4.330.0050.00013.09
7.4.320.0060.00016.41
7.4.300.0060.00016.48
7.4.290.0080.00316.59
7.4.280.0060.00316.58
7.4.270.0080.00016.40
7.4.260.0060.00013.25
7.4.250.0040.00416.49
7.4.240.0030.00316.50
7.4.230.0080.00016.50
7.4.220.0150.00316.34
7.4.210.0080.01216.61
7.4.200.0030.00316.48
7.4.190.0000.00816.66
7.4.160.0080.00816.40
7.4.150.0030.01616.44
7.4.140.0090.01116.49
7.4.130.0040.01116.56
7.4.120.0080.00816.73
7.4.110.0090.00916.39
7.4.100.0190.00516.38
7.4.90.0030.01416.40
7.4.80.0180.00316.69
7.4.70.0090.01216.41
7.4.60.0090.00616.49
7.4.50.0080.00016.47
7.4.40.0040.01116.63
7.4.30.0060.01216.64
7.4.00.0000.01414.91
7.3.330.0000.00613.38
7.3.320.0030.00313.18
7.3.310.0000.00716.31
7.3.300.0000.00716.37
7.3.290.0080.00816.32
7.3.280.0040.01316.33
7.3.270.0080.01216.34
7.3.260.0110.00716.51
7.3.250.0110.00816.47
7.3.240.0120.00316.53
7.3.230.0100.01116.43
7.3.210.0100.00716.38
7.3.200.0100.00716.52
7.3.190.0070.01016.34
7.3.180.0080.00816.50
7.3.170.0030.01216.64
7.3.160.0150.00916.54
7.3.120.0060.00914.52
7.2.330.0150.00416.64
7.2.320.0060.01216.41
7.2.310.0150.00316.80
7.2.300.0170.00616.58
7.2.290.0140.01016.52
7.2.00.0100.00319.61
7.1.70.0070.00017.15
7.1.60.0210.00319.30
7.1.50.0200.00317.04
7.1.00.0000.03722.33
7.0.200.0000.01016.79
7.0.140.0070.07021.92
7.0.60.0070.04719.91
7.0.50.0030.04017.88
7.0.40.0100.06320.25
7.0.30.0270.06320.24
7.0.20.0370.08020.07
7.0.10.0030.04720.05
7.0.00.0030.08020.07
5.6.280.0030.07321.09
5.6.210.0000.05320.45
5.6.200.0070.08018.20
5.6.190.0130.04320.63
5.6.180.0430.05020.39
5.6.170.0500.05020.55
5.6.160.0100.08020.41
5.6.150.0030.05718.23
5.6.140.0030.08318.18
5.6.130.0070.05018.27
5.6.120.0200.06321.00
5.6.110.0070.04021.02
5.6.100.0100.07720.97
5.6.90.0070.09020.95
5.6.80.0070.04020.51
5.5.350.0270.07320.41
5.5.340.0100.07317.95
5.5.330.0030.05720.41
5.5.320.0300.07720.34
5.5.310.0300.06720.31
5.5.300.0070.04017.95
5.5.290.0100.07718.03
5.5.280.0130.07720.66
5.5.270.0170.07320.86
5.5.260.0200.07320.74
5.5.250.0000.04320.46
5.5.240.0070.07020.16
5.4.450.0070.07719.18
5.4.440.0000.05319.30
5.4.430.0030.04019.52
5.4.420.0070.03719.57
5.4.410.0030.04319.20
5.4.400.0070.03319.06
5.4.390.0000.04018.87
5.4.380.0030.03719.16
5.4.370.0030.04019.16
5.4.360.0030.05018.85
5.4.350.0030.04019.25
5.4.340.0030.03719.08
5.4.320.0030.04018.94
5.4.310.0000.04019.20
5.4.300.0000.04319.25
5.4.290.0100.03019.20
5.4.280.0130.03319.24
5.4.270.0030.03718.84
5.4.260.0100.03019.14
5.4.250.0000.04319.15
5.4.240.0030.03718.92
5.4.230.0000.05018.85
5.4.220.0030.04718.84
5.4.210.0030.07719.23
5.4.200.0170.06718.84
5.4.190.0030.08019.14
5.4.180.0070.06718.84
5.4.170.0100.07018.86
5.4.160.0070.06719.13
5.4.150.0000.04718.98
5.4.140.0100.07016.27
5.4.130.0030.08016.45
5.4.120.0070.06016.30
5.4.110.0070.03316.46
5.4.100.0070.03316.28
5.4.90.0130.04016.30
5.4.80.0070.04316.26
5.4.70.0070.03316.30
5.4.60.0070.04716.43
5.4.50.0100.06716.38
5.4.40.0100.06016.31
5.4.30.0030.07316.38
5.4.20.0100.05716.50
5.4.10.0130.03716.27
5.4.00.0100.07315.80
5.3.290.0030.04014.70
5.3.280.0030.03714.62
5.3.270.0030.08314.67
5.3.260.0070.06014.60
5.3.250.0000.04314.75
5.3.240.0070.07714.59
5.3.230.0100.06314.58
5.3.220.0000.04314.56
5.3.210.0070.03714.62
5.3.200.0070.03314.59
5.3.190.0070.07714.57
5.3.180.0130.06714.63
5.3.170.0130.06314.61
5.3.160.0100.03714.58
5.3.150.0130.06714.48
5.3.140.0100.07714.58
5.3.130.0030.06714.46
5.3.120.0070.04014.61
5.3.110.0070.07314.59
5.3.100.0000.05313.96
5.3.90.0100.04014.07
5.3.80.0030.04714.03
5.3.70.0070.07314.07
5.3.60.0070.05013.97
5.3.50.0000.04313.98
5.3.40.0070.04313.92
5.3.30.0130.06313.94
5.3.20.0100.03713.69
5.3.10.0130.06313.80
5.3.00.0030.06013.56
5.2.170.0000.06011.20
5.2.160.0100.02311.11
5.2.150.0000.04011.15
5.2.140.0030.03711.20
5.2.130.0030.03711.07
5.2.120.0100.04011.07
5.2.110.0070.05711.11
5.2.100.0170.04311.15
5.2.90.0000.05711.25
5.2.80.0070.05311.16
5.2.70.0030.04011.24
5.2.60.0070.06311.02
5.2.50.0070.05711.09
5.2.40.0100.03010.99
5.2.30.0030.04711.13
5.2.20.0030.03311.01
5.2.10.0130.02010.86
5.2.00.0030.05310.72
5.1.60.0000.0279.98
5.1.50.0030.02310.02
5.1.40.0070.05010.00
5.1.30.0030.05310.39
5.1.20.0000.03010.36
5.1.10.0000.04010.06
5.1.00.0070.03010.09
5.0.50.0030.0479.68
5.0.40.0000.0439.68
5.0.30.0000.0379.68
5.0.20.0030.0309.68
5.0.10.0030.0479.68
5.0.00.0030.0339.68
4.4.90.0000.0179.68
4.4.80.0130.0209.68
4.4.70.0030.0209.68
4.4.60.0000.0209.68
4.4.50.0030.0209.68
4.4.40.0000.0279.68
4.4.30.0000.0179.68
4.4.20.0070.0279.68
4.4.10.0030.0279.68
4.4.00.0030.0309.68
4.3.110.0070.0179.68
4.3.100.0000.0339.68
4.3.90.0000.0179.68
4.3.80.0000.0379.68
4.3.70.0030.0139.68
4.3.60.0030.0209.68
4.3.50.0100.0109.68
4.3.40.0000.0479.68
4.3.30.0000.0379.68
4.3.20.0000.0279.68
4.3.10.0000.0379.68
4.3.00.0070.0309.68

preferences:
39.24 ms | 401 KiB | 5 Q