3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ "parent" => [ "title" => null ] ]; var_dump(iterator_to_array(new RecursiveIteratorIterator(new ArrayIterator($array)), true));

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)
8.3.60.0170.01016.63
8.3.50.0130.00716.15
8.3.40.0070.01418.79
8.3.30.0090.00918.71
8.3.20.0070.00020.07
8.3.10.0070.00021.65
8.3.00.0050.00323.66
8.2.180.0130.00318.18
8.2.170.0120.00318.94
8.2.160.0100.00322.96
8.2.150.0070.00324.18
8.2.140.0040.00424.66
8.2.130.0040.00419.27
8.2.120.0040.00426.35
8.2.110.0070.01522.13
8.2.100.0110.00017.80
8.2.90.0040.00419.05
8.2.80.0050.00317.97
8.2.70.0060.00317.50
8.2.60.0050.00317.92
8.2.50.0030.00718.07
8.2.40.0050.00322.32
8.2.30.0070.00020.48
8.2.20.0040.00417.54
8.2.10.0040.00418.00
8.2.00.0080.00018.14
8.1.280.0030.01225.92
8.1.270.0080.00020.38
8.1.260.0040.00428.09
8.1.250.0080.00028.09
8.1.240.0000.01022.04
8.1.230.0070.00319.10
8.1.220.0080.00017.74
8.1.210.0030.00618.77
8.1.200.0030.00617.23
8.1.190.0040.00417.22
8.1.180.0090.00018.10
8.1.170.0040.00418.47
8.1.160.0070.00020.74
8.1.150.0050.00218.80
8.1.140.0080.00019.50
8.1.130.0030.00317.58
8.1.120.0030.00517.39
8.1.110.0040.00417.26
8.1.100.0000.00817.31
8.1.90.0000.00817.40
8.1.80.0000.00717.27
8.1.70.0070.00017.34
8.1.60.0080.00017.44
8.1.50.0080.00017.52
8.1.40.0030.00617.40
8.1.30.0040.00417.61
8.1.20.0050.00317.48
8.1.10.0040.00417.61
8.1.00.0040.00417.54
8.0.300.0000.00818.77
8.0.290.0040.00416.58
8.0.280.0030.00518.37
8.0.270.0070.00017.18
8.0.260.0030.00317.09
8.0.250.0000.00816.95
8.0.240.0070.00016.95
8.0.230.0050.00316.93
8.0.220.0040.00416.87
8.0.210.0000.00816.79
8.0.200.0050.00316.95
8.0.190.0000.01016.95
8.0.180.0000.00816.93
8.0.170.0000.00816.93
8.0.160.0000.00716.91
8.0.150.0030.00516.84
8.0.140.0070.00016.75
8.0.130.0030.00313.32
8.0.120.0000.00716.78
8.0.110.0000.00716.94
8.0.100.0000.00716.70
8.0.90.0080.00016.69
8.0.80.0110.00416.77
8.0.70.0070.00016.75
8.0.60.0000.00816.88
8.0.50.0080.00016.82
8.0.30.0110.00717.10
8.0.20.0090.01017.40
8.0.10.0040.00417.10
8.0.00.0110.00616.62
7.4.330.0020.00216.77
7.4.320.0000.00616.50
7.4.300.0040.00416.50
7.4.290.0030.00316.59
7.4.280.0040.00416.40
7.4.270.0000.00716.60
7.4.260.0040.00416.53
7.4.250.0000.00816.59
7.4.240.0020.00516.49
7.4.230.0030.00316.65
7.4.220.0180.00316.41
7.4.210.0070.00716.60
7.4.200.0000.00716.35
7.4.160.0060.01016.52
7.4.150.0120.00617.40
7.4.140.0090.01417.86
7.4.130.0160.00616.57
7.4.120.0080.01216.42
7.4.110.0100.00716.42
7.4.100.0070.01416.26
7.4.90.0100.00716.41
7.4.80.0100.00619.39
7.4.70.0090.00616.62
7.4.60.0110.00616.36
7.4.50.0040.01116.37
7.4.40.0070.01116.38
7.4.30.0140.00416.58
7.4.00.0030.00714.93
7.3.330.0020.00213.23
7.3.320.0030.00313.23
7.3.310.0060.00016.33
7.3.300.0070.00016.23
7.3.290.0120.00716.27
7.3.280.0100.00816.26
7.3.270.0110.00617.40
7.3.260.0070.01116.39
7.3.250.0130.00516.40
7.3.240.0080.01016.38
7.3.230.0100.01316.39
7.3.210.0060.01216.34
7.3.200.0090.01216.23
7.3.190.0030.01216.25
7.3.180.0000.01516.27
7.3.170.0070.01316.39
7.3.160.0080.00816.39
7.2.330.0080.00816.69
7.2.320.0140.00316.30
7.2.310.0090.01316.46
7.2.300.0130.00716.60
7.2.290.0090.00916.65
7.2.60.0070.00716.86
7.2.00.0100.01019.41
7.1.200.0000.01115.57
7.1.100.0060.00617.93
7.1.70.0070.00416.88
7.1.60.0110.01419.52
7.1.50.0080.00416.85
7.1.00.0070.07322.54
7.0.200.0030.00616.71
7.0.60.0100.04719.92
7.0.50.0130.07717.73
7.0.40.0030.09020.30
7.0.30.0330.07720.20
7.0.20.0230.06320.20
7.0.10.0000.08320.16
7.0.00.0030.06320.33
5.6.280.0070.03320.91
5.6.210.0100.07020.64
5.6.200.0070.08318.23
5.6.190.0070.05320.41
5.6.180.0330.07020.67
5.6.170.0070.05720.51
5.6.160.0130.07720.48
5.6.150.0100.05718.29
5.6.140.0030.06318.12
5.6.130.0070.04718.19
5.6.120.0100.05720.98
5.6.110.0070.08321.08
5.6.100.0030.05721.03
5.6.90.0070.07720.97
5.6.80.0170.06720.52
5.5.350.4030.04020.49
5.5.340.0070.06317.91
5.5.330.0000.09020.56
5.5.320.0670.06320.34
5.5.310.0300.07020.38
5.5.300.0030.05717.95
5.5.290.0130.05718.07
5.5.280.0070.04020.79
5.5.270.0130.08020.86
5.5.260.0070.04320.68
5.5.250.0030.04020.67
5.5.240.0170.06320.34

preferences:
47.04 ms | 400 KiB | 5 Q