3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array(); $it = new RecursiveIteratorIterator( new RecursiveArrayIterator($array)); $it->rewind(); var_dump($it->key());

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)
8.3.60.0080.00616.75
8.3.50.0100.00821.94
8.3.40.0100.00718.71
8.3.30.0110.00319.10
8.3.20.0040.00420.39
8.3.10.0040.00423.66
8.3.00.0080.00019.13
8.2.180.0090.00618.41
8.2.170.0070.00722.96
8.2.160.0070.00720.21
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0040.01426.16
8.2.120.0080.00022.25
8.2.110.0090.00019.27
8.2.100.0080.00417.91
8.2.90.0000.00819.03
8.2.80.0040.00417.97
8.2.70.0030.00617.25
8.2.60.0000.00817.80
8.2.50.0030.00518.07
8.2.40.0000.00818.16
8.2.30.0000.00718.05
8.2.20.0030.00717.50
8.2.10.0040.00417.97
8.2.00.0050.00317.55
8.1.280.0040.01125.92
8.1.270.0140.00422.05
8.1.260.0060.00326.35
8.1.250.0040.00428.09
8.1.240.0060.00322.42
8.1.230.0100.00320.98
8.1.220.0030.00518.69
8.1.210.0080.00018.97
8.1.200.0060.00317.22
8.1.190.0040.00417.38
8.1.180.0080.00018.10
8.1.170.0000.00918.50
8.1.160.0040.00421.95
8.1.150.0040.00418.45
8.1.140.0000.00817.35
8.1.130.0070.00017.82
8.1.120.0040.00417.33
8.1.110.0000.00817.28
8.1.100.0040.00417.41
8.1.90.0000.00717.30
8.1.80.0060.00317.32
8.1.70.0040.00417.39
8.1.60.0090.00017.55
8.1.50.0040.00417.44
8.1.40.0040.00417.36
8.1.30.0080.00017.51
8.1.20.0070.00017.49
8.1.10.0060.00317.47
8.1.00.0000.00817.43
8.0.300.0000.00719.90
8.0.290.0040.00417.05
8.0.280.0000.00718.37
8.0.270.0030.00317.13
8.0.260.0000.00616.82
8.0.250.0000.00716.79
8.0.240.0080.00016.79
8.0.230.0000.00716.82
8.0.220.0050.00316.80
8.0.210.0000.00716.72
8.0.200.0000.00716.88
8.0.190.0000.01116.88
8.0.180.0000.00816.75
8.0.170.0040.00416.89
8.0.160.0030.00416.83
8.0.150.0000.00716.72
8.0.140.0070.00016.76
8.0.130.0060.00013.28
8.0.120.0030.00516.74
8.0.110.0050.00316.84
8.0.100.0050.00316.62
8.0.90.0000.00816.76
8.0.80.0070.00716.78
8.0.70.0050.00316.70
8.0.60.0030.00616.84
8.0.50.0040.00416.84
8.0.30.0110.01117.01
8.0.20.0160.01017.40
8.0.10.0040.00416.89
8.0.00.0090.00916.74
7.4.330.0000.00515.00
7.4.320.0000.00616.53
7.4.300.0090.00016.56
7.4.290.0060.00616.45
7.4.280.0030.00316.43
7.4.270.0000.00716.34
7.4.260.0060.00316.57
7.4.250.0070.00016.44
7.4.240.0030.00316.46
7.4.230.0030.00316.52
7.4.220.0070.01016.63
7.4.210.0060.00916.52
7.4.200.0040.00416.32
7.4.190.0000.00716.50
7.4.160.0080.00816.45
7.4.150.0090.00917.40
7.4.140.0110.00617.86
7.4.130.0140.00516.29
7.4.120.0090.01116.35
7.4.110.0090.00916.57
7.4.100.0070.01716.30
7.4.90.0130.00316.37
7.4.80.0100.00919.39
7.4.70.0120.00316.45
7.4.60.0040.01416.40
7.4.50.0060.00316.41
7.4.40.0080.00522.77
7.4.30.0050.01016.36
7.4.00.0060.00914.93
7.3.330.0020.00212.89
7.3.320.0000.00512.87
7.3.310.0030.00315.93
7.3.300.0030.00316.05
7.3.290.0160.00016.14
7.3.280.0080.01016.15
7.3.270.0070.01117.40
7.3.260.0170.00016.44
7.3.250.0070.01216.18
7.3.240.0040.01816.51
7.3.230.0090.00916.39
7.3.210.0100.00716.14
7.3.200.0100.00719.39
7.3.190.0140.00316.39
7.3.180.0070.01116.54
7.3.170.0120.00316.39
7.3.160.0030.01416.25
7.3.120.0030.01014.91
7.3.10.0050.00916.55
7.3.00.0060.00316.60
7.2.330.0130.00916.20
7.2.320.0160.00916.57
7.2.310.0100.00716.39
7.2.300.0070.01416.18
7.2.290.0030.01516.33
7.2.130.0050.00816.79
7.2.120.0050.00616.59
7.2.110.0020.01116.68
7.2.100.0030.01016.74
7.2.90.0070.00716.92
7.2.80.0060.00716.54
7.2.70.0020.01016.86
7.2.60.0050.00716.68
7.2.50.0040.00616.75
7.2.40.0060.00616.83
7.2.30.0090.00516.81
7.2.20.0070.00416.82
7.2.10.0050.00916.70
7.2.00.0070.00617.68
7.1.250.0070.00115.79
7.1.200.0030.00915.43
7.1.100.0080.01217.89
7.1.70.0000.00816.87
7.1.60.0030.02119.33
7.1.50.0170.01734.91
7.1.00.0000.07722.45
7.0.200.0070.00316.46
7.0.140.0030.07321.95
7.0.80.0630.08019.91
7.0.70.0600.07719.93
7.0.60.0530.08719.93
7.0.50.0700.07020.16
7.0.40.0130.07719.99
7.0.30.0100.08320.11
7.0.20.0130.07720.05
7.0.10.0100.08020.10
7.0.00.0130.08320.02
5.6.280.0070.06721.10
5.6.230.0100.08020.65
5.6.220.0070.07020.57
5.6.210.0170.06720.49
5.6.200.0070.08721.03
5.6.190.0070.05020.98
5.6.180.0070.07721.10
5.6.170.0100.07320.96
5.6.160.0070.07721.02
5.6.150.0100.07321.01
5.6.140.0030.09021.01
5.6.130.0130.07721.01
5.6.120.0100.05321.00
5.6.110.0070.07721.04
5.6.100.0030.05721.15
5.6.90.0130.05320.91
5.6.80.0100.07720.55
5.6.70.0070.08020.51
5.6.60.0100.07320.41
5.6.50.0100.03720.45
5.6.40.0100.07320.29
5.6.30.0130.07720.44
5.6.20.0100.07720.36
5.6.10.0100.04720.31
5.6.00.0100.05020.30
5.5.370.0100.07020.36
5.5.360.0070.07720.48
5.5.350.0070.08020.38
5.5.340.0130.08020.89
5.5.330.0070.04720.81
5.5.320.0130.04320.88
5.5.310.0030.08720.88
5.5.300.0070.05320.87
5.5.290.0070.04320.75
5.5.280.0130.05020.90
5.5.270.0030.08720.76
5.5.260.0000.09320.88
5.5.250.0130.07020.54
5.5.240.0030.04720.11
5.5.230.0070.08020.28
5.5.220.0130.05720.10
5.5.210.0100.07720.30
5.5.200.0070.07320.18
5.5.190.0100.07020.20
5.5.180.0130.07720.26
5.5.160.0170.07320.08
5.5.150.0070.08020.22
5.5.140.0100.06320.13
5.5.130.0130.07320.27
5.5.120.0070.07720.25
5.5.110.0100.07020.13
5.5.100.0000.04320.07
5.5.90.0030.06320.06
5.5.80.0100.07020.12
5.5.70.0030.05720.04
5.5.60.0100.04320.12
5.5.50.0100.07320.13
5.5.40.0100.06720.09
5.5.30.0100.07019.95
5.5.20.0030.05020.04
5.5.10.0030.08320.07
5.5.00.0000.05720.02
5.4.450.0030.08319.46
5.4.440.0070.08719.29
5.4.430.0130.05319.46
5.4.420.0170.06019.30
5.4.410.0070.07019.10
5.4.400.0070.06719.06
5.4.390.0100.07319.07
5.4.380.0030.04718.90
5.4.370.0070.05018.96
5.4.360.0030.06719.09
5.4.350.0000.04718.98
5.4.340.0170.07018.81
5.4.320.0000.06319.03
5.4.310.0070.07019.07
5.4.300.0070.06718.81
5.4.290.0130.04719.02
5.4.280.0030.05319.03
5.4.270.0000.08718.98
5.4.260.0000.07719.07
5.4.250.0100.03019.03
5.4.240.0070.07019.02
5.4.230.0070.03718.97
5.4.220.0130.07019.13
5.4.210.0070.04319.09
5.4.200.0170.03319.09
5.4.190.0030.07719.21
5.4.180.0030.05019.08
5.4.170.0030.08019.15
5.4.160.0000.04719.04
5.4.150.0130.04018.79
5.4.140.0030.07316.38
5.4.130.0100.06316.32
5.4.120.0070.04016.37
5.4.110.0030.04316.42
5.4.100.0000.05016.42
5.4.90.0070.03716.22
5.4.80.0070.04016.39
5.4.70.0000.04016.30
5.4.60.0030.03716.32
5.4.50.0000.05016.27
5.4.40.0030.08016.29
5.4.30.0130.06016.37
5.4.20.0030.04716.20
5.4.10.0000.07316.33
5.4.00.0170.06315.52
5.3.290.0100.07714.61
5.3.280.0130.06714.58
5.3.270.0070.06714.59
5.3.260.0070.05314.59
5.3.250.0030.05714.62
5.3.240.0100.04014.61
5.3.230.0100.06014.54
5.3.220.0070.07314.39
5.3.210.0100.07014.53
5.3.200.0000.04014.55
5.3.190.0070.07314.43
5.3.180.0030.05014.51
5.3.170.0030.04314.55
5.3.160.0070.06714.54
5.3.150.0030.03714.38
5.3.140.0100.05314.49
5.3.130.0070.07014.40
5.3.120.0100.07314.36
5.3.110.0070.07014.54
5.3.100.0030.07313.98
5.3.90.0100.07313.85
5.3.80.0070.07313.98
5.3.70.0000.05713.95
5.3.60.0100.07014.00
5.3.50.0100.06313.93
5.3.40.0030.07313.93
5.3.30.0030.05013.82
5.3.20.0030.07313.65
5.3.10.0000.08013.64
5.3.00.0070.06713.59

preferences:
40.64 ms | 401 KiB | 5 Q