3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(1,2,array(3,4, array(5,[6,[111,['ddd'],222]],7), 8), 9); $it = new RecursiveIteratorIterator(new RecursiveArrayIterator($a)); foreach($it as $v) { echo $v, " "; }

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)
8.3.60.0110.00718.43
8.3.50.0130.00822.01
8.3.40.0040.01118.66
8.3.30.0090.00918.93
8.3.20.0000.00720.33
8.3.10.0000.00823.52
8.3.00.0070.00019.16
8.2.180.0080.00818.43
8.2.170.0140.00722.96
8.2.160.0110.00320.44
8.2.150.0000.00824.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0080.00319.06
8.2.110.0070.00321.03
8.2.100.0120.00017.84
8.2.90.0040.00419.21
8.2.80.0000.00817.97
8.2.70.0040.00417.50
8.2.60.0060.00317.93
8.2.50.0060.00318.07
8.2.40.0040.00419.94
8.2.30.0040.00418.11
8.2.20.0040.00417.68
8.2.10.0040.00418.04
8.2.00.0000.00817.65
8.1.280.0070.00725.92
8.1.270.0030.00622.02
8.1.260.0030.00626.35
8.1.250.0040.00428.09
8.1.240.0060.00321.34
8.1.230.0080.00417.42
8.1.220.0080.00017.75
8.1.210.0000.00818.77
8.1.200.0040.00817.35
8.1.190.0080.00317.13
8.1.180.0080.00018.10
8.1.170.0030.00518.36
8.1.160.0000.00722.01
8.1.150.0060.00318.64
8.1.140.0040.00417.44
8.1.130.0030.00317.80
8.1.120.0000.00717.46
8.1.110.0080.00017.40
8.1.100.0050.00217.45
8.1.90.0000.00717.44
8.1.80.0040.00417.40
8.1.70.0000.00717.36
8.1.60.0030.00617.48
8.1.50.0030.00617.55
8.1.40.0000.00717.53
8.1.30.0060.00317.48
8.1.20.0040.00417.68
8.1.10.0060.00317.47
8.1.00.0050.00217.52
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0000.00718.29
8.0.270.0070.00017.32
8.0.260.0000.00817.26
8.0.250.0030.00316.84
8.0.240.0030.00316.97
8.0.230.0030.00316.93
8.0.220.0000.00716.77
8.0.210.0090.00016.77
8.0.200.0000.00616.82
8.0.190.0040.00416.99
8.0.180.0040.00416.84
8.0.170.0050.00216.79
8.0.160.0020.00516.84
8.0.150.0030.00616.86
8.0.140.0080.00016.90
8.0.130.0000.00513.20
8.0.120.0000.00816.84
8.0.110.0030.00516.78
8.0.100.0080.00016.92
8.0.90.0070.00016.89
8.0.80.0040.01416.77
8.0.70.0000.00816.76
8.0.60.0030.00416.80
8.0.50.0040.00416.80
8.0.30.0110.01017.14
8.0.20.0080.01117.40
8.0.10.0070.00016.96
8.0.00.0170.01016.79
7.4.330.0050.00015.09
7.4.320.0030.00316.40
7.4.300.0030.00316.49
7.4.290.0060.00016.60
7.4.280.0070.00316.58
7.4.270.0040.00416.59
7.4.260.0040.00716.41
7.4.250.0040.00416.46
7.4.240.0020.00516.63
7.4.230.0020.00516.40
7.4.220.0080.00816.62
7.4.210.0100.01016.49
7.4.200.0030.00316.58
7.4.190.0000.00716.68
7.4.160.0130.00416.50
7.4.150.0100.00917.40
7.4.140.0130.00717.86
7.4.130.0120.00516.51
7.4.120.0080.01016.46
7.4.110.0070.01316.57
7.4.100.0150.00616.47
7.4.90.0150.00316.40
7.4.80.0110.00819.39
7.4.70.0060.01016.48
7.4.60.0070.01116.39
7.4.50.0030.00616.27
7.4.40.0120.00616.50
7.4.30.0100.01016.37
7.4.00.0060.00814.68
7.3.330.0050.00313.13
7.3.320.0060.00013.10
7.3.310.0000.00816.46
7.3.300.0000.00716.17
7.3.290.0040.01116.22
7.3.280.0120.00316.35
7.3.270.0140.01117.40
7.3.260.0130.00616.52
7.3.250.0140.00416.37
7.3.240.0140.00416.32
7.3.230.0060.01016.39
7.3.210.0120.01016.32
7.3.200.0110.00916.64
7.3.190.0160.00616.29
7.3.180.0130.00316.48
7.3.170.0090.00916.37
7.3.160.0150.00616.64
7.3.120.0000.01114.98
7.2.330.0060.01116.83
7.2.320.0130.00316.63
7.2.310.0080.00816.48
7.2.300.0110.00916.73
7.2.290.0070.01116.75
7.2.00.0000.01719.25
7.1.100.0050.00518.39
7.1.70.0080.00817.24
7.1.60.0100.01319.70
7.1.50.0140.00416.96
7.1.00.0070.07322.44
7.0.200.0000.00716.78
7.0.140.0030.07322.15
7.0.60.0270.07319.82
7.0.50.0100.07017.73
7.0.40.0230.04320.20
7.0.30.0370.05020.04
7.0.20.0200.05020.12
7.0.10.0030.05020.09
7.0.00.0070.05020.01
5.6.280.0000.07321.10
5.6.210.0000.04320.52
5.6.200.0070.07718.13
5.6.190.0100.08320.39
5.6.180.0400.07320.61
5.6.170.0300.06720.47
5.6.160.0070.06020.38
5.6.150.0100.07718.16
5.6.140.0070.07318.11
5.6.130.0100.08018.11
5.6.120.0030.04021.12
5.6.110.0100.07720.99
5.6.100.0100.08320.85
5.6.90.0070.08721.00
5.6.80.0100.06320.38
5.5.350.0270.05720.41
5.5.340.0070.08318.02
5.5.330.0100.08020.29
5.5.320.0300.04020.11
5.5.310.0230.08320.29
5.5.300.0000.06017.98
5.5.290.0100.08017.91
5.5.280.0030.04020.98
5.5.270.0030.09020.71
5.5.260.0030.04720.75
5.5.250.0030.06020.68
5.5.240.0030.08320.23
5.4.450.3930.04319.20
5.4.440.0100.07719.46
5.4.430.4600.04019.45
5.4.420.4470.04019.30
5.4.410.3830.03719.28
5.4.400.3630.03719.18
5.4.390.3670.04019.14
5.4.380.0070.06019.08
5.4.370.3930.03719.13
5.4.360.3530.04319.03
5.4.350.4000.03719.13
5.4.340.4700.02318.93
5.4.320.3930.03318.92
5.4.310.3700.03319.15
5.4.300.4200.03319.05
5.4.290.3730.03319.04
5.4.280.3800.04018.99
5.4.270.3770.03019.14
5.4.260.3800.02319.03
5.4.250.3930.02318.96
5.4.240.3800.03719.23
5.4.230.4100.04019.14
5.4.220.3570.04319.13
5.4.210.3500.03718.96
5.4.200.3770.04019.03
5.4.190.3600.03718.99
5.4.180.5070.04018.95
5.4.170.4300.04719.16
5.4.160.4230.04019.13
5.4.150.4530.03719.13
5.4.140.3800.04016.45
5.4.130.3930.03016.22
5.4.120.3830.03716.38
5.4.110.3600.04016.33
5.4.100.3730.03316.38
5.4.90.4030.03716.57
5.4.80.3400.03016.46
5.4.70.2770.03316.14
5.4.60.3030.03316.39
5.4.50.3400.03316.47
5.4.40.3400.03316.20
5.4.30.3100.03016.14
5.4.20.3030.03716.39
5.4.10.2730.04016.13
5.4.00.2900.03315.92
5.3.290.3600.03714.64
5.3.280.3830.03314.52
5.3.270.4100.03714.39
5.3.260.4300.04014.53
5.3.250.4070.03714.53
5.3.240.4700.03714.54
5.3.230.3930.03714.52
5.3.220.4000.03014.50
5.3.210.3700.04014.58
5.3.200.4030.04014.53
5.3.190.4630.03014.49
5.3.180.4130.03314.46
5.3.170.3030.04014.44
5.3.160.3070.04014.51
5.3.150.3430.03014.52
5.3.140.3570.03714.46
5.3.130.3670.03314.64
5.3.120.3530.02314.48
5.3.110.3270.03314.49
5.3.100.3470.03013.92
5.3.90.3370.04013.95
5.3.80.3200.02313.96
5.3.70.3970.03013.83
5.3.60.3930.02713.96
5.3.50.3770.03314.03
5.3.40.3770.03313.88
5.3.30.4370.03713.84
5.3.20.3930.03013.63
5.3.10.3930.03713.58
5.3.00.3900.03013.60
5.2.170.3300.03011.30
5.2.160.3270.02711.07
5.2.150.3470.03311.14
5.2.140.3230.03311.31
5.2.130.3200.03011.00
5.2.120.3430.02311.04
5.2.110.3300.03011.03
5.2.100.3570.02711.00
5.2.90.3400.03311.18
5.2.80.3900.02711.07
5.2.70.3800.03311.03
5.2.60.3370.03010.93
5.2.50.3870.03010.89
5.2.40.3300.02710.92
5.2.30.2900.03011.12
5.2.20.2330.02710.89
5.2.10.3200.02310.91
5.2.00.2630.03010.86
5.1.60.2630.03010.14
5.1.50.2400.02310.04
5.1.40.2730.02310.13
5.1.30.3070.02710.39
5.1.20.2730.03010.36
5.1.10.2470.0339.97
5.1.00.2700.02710.04
5.0.50.1330.0238.56
5.0.40.1430.0278.39
5.0.30.1530.0308.20
5.0.20.1370.0208.24
5.0.10.0400.0408.20
5.0.00.0000.0538.11
4.4.90.1770.0176.16
4.4.80.1630.0176.16
4.4.70.1630.0176.16
4.4.60.1470.0176.16
4.4.50.1330.0176.16
4.4.40.1130.0276.16
4.4.30.1230.0176.16
4.4.20.1500.0136.16
4.4.10.1300.0136.16
4.4.00.1400.0236.16
4.3.110.1070.0176.16
4.3.100.1730.0136.16
4.3.90.0730.0136.16
4.3.80.0070.0406.16
4.3.70.0030.0176.16
4.3.60.0100.0106.16
4.3.50.0070.0206.16
4.3.40.0000.0306.16
4.3.30.0030.0136.16
4.3.20.0030.0176.16
4.3.10.0000.0176.16
4.3.00.0000.0136.16

preferences:
46.93 ms | 401 KiB | 5 Q