3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ 1 => [ 1 => 'a', 2 => 'b' ] ]; $iterator = new \RecursiveIteratorIterator( new \RecursiveArrayIterator($array) ); foreach ($iterator as $result) { var_dump($result); }

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)
8.3.60.0140.00316.50
8.3.50.0120.00522.04
8.3.40.0070.01118.50
8.3.30.0070.00718.89
8.3.20.0040.00420.23
8.3.10.0050.00321.73
8.3.00.0040.00420.81
8.2.180.0120.00918.38
8.2.170.0030.01022.96
8.2.160.0070.00720.32
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0080.00019.66
8.2.110.0050.00522.08
8.2.100.0060.00617.75
8.2.90.0000.00719.23
8.2.80.0000.00817.97
8.2.70.0040.00717.50
8.2.60.0060.00317.93
8.2.50.0060.00318.07
8.2.40.0090.00020.07
8.2.30.0040.00418.16
8.2.20.0040.00417.65
8.2.10.0000.00818.02
8.2.00.0070.00017.61
8.1.280.0120.00625.92
8.1.270.0000.00918.92
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0040.00423.97
8.1.230.0120.00017.71
8.1.220.0050.00317.74
8.1.210.0000.00818.77
8.1.200.0060.00317.35
8.1.190.0000.00917.23
8.1.180.0000.00818.10
8.1.170.0080.00018.50
8.1.160.0040.00421.99
8.1.150.0000.00718.87
8.1.140.0040.00417.31
8.1.130.0000.00718.77
8.1.120.0030.00317.34
8.1.110.0040.00417.50
8.1.100.0000.00717.44
8.1.90.0000.00717.48
8.1.80.0000.00717.46
8.1.70.0070.00017.36
8.1.60.0040.00417.49
8.1.50.0000.00917.50
8.1.40.0080.00017.41
8.1.30.0040.00417.68
8.1.20.0050.00217.61
8.1.10.0020.00517.50
8.1.00.0030.00617.56
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0000.00718.47
8.0.270.0030.00317.25
8.0.260.0030.00318.45
8.0.250.0040.00416.86
8.0.240.0060.00316.98
8.0.230.0030.00316.95
8.0.220.0040.00316.72
8.0.210.0080.00016.85
8.0.200.0030.00316.96
8.0.190.0030.00316.94
8.0.180.0000.00716.90
8.0.170.0030.00616.89
8.0.160.0030.00516.86
8.0.150.0000.00716.83
8.0.140.0040.00316.91
8.0.130.0060.00013.29
8.0.120.0050.00216.75
8.0.110.0040.00416.80
8.0.100.0030.00316.94
8.0.90.0040.00416.75
8.0.80.0110.00716.89
8.0.70.0000.00716.99
8.0.60.0030.00516.89
8.0.50.0030.00516.78
8.0.30.0100.01217.18
8.0.20.0140.00517.40
8.0.10.0000.00816.95
8.0.00.0040.01416.87
7.4.330.0060.00015.14
7.4.320.0040.00416.50
7.4.300.0000.00716.43
7.4.290.0050.00316.49
7.4.280.0060.00316.50
7.4.270.0060.00016.60
7.4.260.0070.00016.53
7.4.250.0000.00716.43
7.4.240.0050.00216.54
7.4.230.0000.00716.53
7.4.220.0060.01216.59
7.4.210.0050.00916.61
7.4.200.0000.00816.57
7.4.160.0040.01116.47
7.4.150.0130.01017.40
7.4.140.0100.01017.86
7.4.130.0110.00916.37
7.4.120.0090.01116.50
7.4.110.0120.00616.57
7.4.100.0040.01316.22
7.4.90.0070.01116.50
7.4.80.0060.01016.54
7.4.70.0130.01016.36
7.4.60.0100.00616.54
7.4.50.0050.00316.39
7.4.40.0060.01116.46
7.4.30.0170.00316.41
7.4.00.0030.01414.59
7.3.330.0030.00213.14
7.3.320.0090.00413.11
7.3.310.0000.00816.34
7.3.300.0000.00716.12
7.3.290.0060.00916.24
7.3.280.0110.00816.27
7.3.270.0080.00817.40
7.3.260.0150.00316.20
7.3.250.0140.00816.47
7.3.240.0030.01716.39
7.3.230.0080.01116.61
7.3.210.0030.01416.37
7.3.200.0090.00919.39
7.3.190.0090.00616.18
7.3.180.0040.01216.22
7.3.170.0040.01316.47
7.3.160.0170.00616.46
7.3.10.0060.00616.45
7.3.00.0130.00016.34
7.2.330.0110.01216.32
7.2.320.0070.01116.60
7.2.310.0090.01316.53
7.2.300.0060.00916.70
7.2.290.0170.00416.77
7.2.130.0060.00616.75
7.2.120.0070.00716.94
7.2.110.0000.00817.02
7.2.100.0030.00916.70
7.2.90.0040.01117.00
7.2.80.0000.01016.56
7.2.70.0030.00617.07
7.2.60.0090.00516.96
7.2.50.0000.01517.01
7.2.40.0060.00617.05
7.2.30.0070.00716.85
7.2.20.0040.00417.05
7.2.10.0070.01017.13
7.2.00.0050.00918.16
7.1.250.0080.00315.62
7.1.200.0040.00815.64
7.1.100.0070.00717.90
7.1.70.0040.00717.30
7.1.60.0110.01419.46
7.1.50.0070.01316.54
7.1.00.0030.07722.45
7.0.200.0000.00816.75
7.0.140.0030.05022.00
7.0.60.0070.08320.04
7.0.50.0070.05317.89
7.0.40.0070.08720.04
7.0.30.0170.04020.00
7.0.20.0230.07320.18
7.0.10.0230.04320.16
7.0.00.0000.05019.98
5.6.280.0100.06720.82
5.6.210.0030.08320.52
5.6.200.0130.06718.11
5.6.190.0030.04320.69
5.6.180.3270.04720.60
5.6.170.0100.04720.51
5.6.160.0070.06320.49
5.6.150.0070.03718.20
5.6.140.0130.07318.07
5.6.130.0100.08318.18
5.6.120.0100.08020.98
5.6.110.0000.04320.94
5.6.100.0100.03720.98
5.6.90.0130.08021.10
5.6.80.0100.03720.40
5.6.70.0370.06020.39
5.5.350.0200.04720.40
5.5.340.0070.07717.95
5.5.330.0000.04720.56
5.5.320.0500.06720.29
5.5.310.0200.06020.27
5.5.300.0030.08317.98
5.5.290.0070.06317.92
5.5.280.0000.06720.77
5.5.270.0070.04020.86
5.5.260.0100.06320.75
5.5.250.0100.05720.49
5.5.240.0130.03720.12
5.4.450.0870.07019.09
5.4.440.0900.05719.63
5.4.430.0930.06719.40
5.4.420.1130.05719.51
5.4.410.0870.06019.35
5.4.400.0830.06318.79
5.4.390.0170.04318.72
5.4.380.0100.05718.68
5.4.370.0070.05318.70
5.4.360.0130.05318.70
5.4.350.0200.04318.52
5.4.340.0200.04018.64
5.4.320.0170.06018.69
5.4.310.0100.05318.68
5.4.300.0200.05018.57
5.4.290.0170.04318.49
5.4.280.0130.05018.73
5.4.270.0170.04718.77
5.4.260.0170.04718.67
5.4.250.0130.06018.73
5.4.240.0170.05018.51
5.4.230.0170.04718.45
5.4.220.0130.07318.48
5.4.210.0100.05718.51
5.4.200.0170.06316.48
5.4.190.0200.06718.64
5.4.180.0070.06018.64
5.4.170.0100.05718.66
5.4.160.0170.05018.56
5.4.150.0070.06018.61
5.4.140.0130.05016.07
5.4.130.0100.05316.26
5.4.120.0130.05016.26
5.4.110.0100.05016.15
5.4.100.0200.05016.04
5.4.90.0270.05716.25
5.4.80.0230.04316.33
5.4.70.0070.05716.29
5.4.60.0130.04716.27
5.4.50.0070.05316.13
5.4.40.0170.04716.23
5.4.30.0100.06716.13
5.4.20.0130.04716.05
5.4.10.0070.05716.21
5.4.00.0130.05015.71
5.3.290.0100.06014.72
5.3.280.0130.05314.68
5.3.270.0100.06014.50
5.3.260.0170.05014.69
5.3.250.0100.06014.63
5.3.240.0130.07014.55
5.3.230.0130.05314.59
5.3.220.0130.07014.52
5.3.210.0100.07714.55
5.3.200.0130.06714.55
5.3.190.0170.05014.48
5.3.180.0170.05014.48
5.3.170.0230.04714.59
5.3.160.0100.05314.50
5.3.150.0070.06014.48
5.3.140.0070.07014.45
5.3.130.0030.06314.50
5.3.120.0100.05714.55
5.3.110.0170.05314.55
5.3.100.0170.06714.02
5.3.90.0230.04013.98
5.3.80.0130.06014.00
5.3.70.0170.04713.93
5.3.60.0130.05013.89
5.3.50.0170.05013.84
5.3.40.0030.07313.92
5.3.30.0100.05313.94
5.3.20.0170.04313.69
5.3.10.0170.04713.64
5.3.00.0130.05013.57
5.2.170.0100.04011.19
5.2.160.0100.04011.18
5.2.150.0070.04711.09
5.2.140.0070.04711.17
5.2.130.0230.02711.05
5.2.120.0100.04011.03
5.2.110.0130.04011.07
5.2.100.0100.04011.04
5.2.90.0000.05011.09
5.2.80.0130.03711.13
5.2.70.0070.04711.14
5.2.60.0130.05010.96
5.2.50.0070.04710.97
5.2.40.0100.04011.00
5.2.30.0070.04011.01
5.2.20.0100.04011.02
5.2.10.0200.03310.95
5.2.00.0130.03710.76
5.1.60.0030.04010.01
5.1.50.0030.04010.01
5.1.40.0170.03010.07
5.1.30.0070.04710.30
5.1.20.0170.03010.37
5.1.10.0170.03710.10
5.1.00.0130.04710.05
5.0.50.0070.0308.52
5.0.40.0070.0278.44
5.0.30.0030.0478.33
5.0.20.0030.0308.17
5.0.10.0030.0308.11
5.0.00.0000.0478.19
4.4.90.0100.0175.88
4.4.80.0000.0275.90
4.4.70.0000.0275.92
4.4.60.0030.0275.87
4.4.50.0030.0305.82
4.4.40.0100.0405.92
4.4.30.0070.0205.92
4.4.20.0030.0275.88
4.4.10.0000.0275.98
4.4.00.0070.0335.91
4.3.110.0100.0235.83
4.3.100.0030.0275.84
4.3.90.0100.0175.88
4.3.80.0000.0405.86
4.3.70.0070.0205.87
4.3.60.0030.0235.84
4.3.50.0070.0205.79
4.3.40.0100.0375.79
4.3.30.0000.0234.72
4.3.20.0000.0274.72
4.3.10.0000.0234.72
4.3.00.0170.0177.06

preferences:
40.85 ms | 401 KiB | 5 Q