3v4l.org

run code in 300+ PHP versions simultaneously
<?php function func(&$data) { foreach ($data as $key => $value) { if (is_array($value)) { func($data[$key]); } } } $data = [ ['zero' => [0]], ['one' => [1]], ]; //debug_zval_dump($data[1]['one']); //refcount(2) func($data); //debug_zval_dump($data[1]['one']); //refcount(3) array_replace_recursive($data[0], $data[1]); echo json_encode($data);

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)
8.3.60.0110.00416.50
8.3.50.0120.01021.21
8.3.40.0110.00418.79
8.3.30.0110.00718.58
8.3.20.0040.00420.29
8.3.10.0040.00421.93
8.3.00.0040.00423.71
8.2.180.0090.00618.30
8.2.170.0040.01122.96
8.2.160.0110.00420.47
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0080.00019.89
8.2.120.0080.00026.35
8.2.110.0030.00620.38
8.2.100.0120.00017.91
8.2.90.0000.00917.88
8.2.80.0040.00418.78
8.2.70.0040.00417.50
8.2.60.0040.00417.75
8.2.50.0080.00017.55
8.2.40.0040.00419.47
8.2.30.0000.00819.43
8.2.20.0000.00817.62
8.2.10.0060.00318.04
8.2.00.0040.00418.16
8.1.280.0100.00325.92
8.1.270.0070.01023.96
8.1.260.0040.00428.09
8.1.250.0070.00028.09
8.1.240.0090.00020.64
8.1.230.0070.00422.13
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0050.00317.36
8.1.190.0080.00017.22
8.1.180.0000.00918.10
8.1.170.0000.00817.62
8.1.160.0040.00420.67
8.1.150.0000.00718.79
8.1.140.0000.00919.48
8.1.130.0000.00717.61
8.1.120.0080.00017.51
8.1.110.0040.00417.33
8.1.100.0070.00017.33
8.1.90.0030.00517.45
8.1.80.0000.00717.32
8.1.70.0040.00417.39
8.1.60.0000.00817.56
8.1.50.0040.00417.42
8.1.40.0040.00417.53
8.1.30.0030.00617.59
8.1.20.0000.00817.54
8.1.10.0050.00317.41
8.1.00.0030.00517.54
8.0.300.0000.00718.77
8.0.290.0040.00416.58
8.0.280.0030.00518.50
8.0.270.0030.00317.16
8.0.260.0070.00017.32
8.0.250.0030.00316.97
8.0.240.0030.00316.81
8.0.230.0000.00716.93
8.0.220.0000.00816.77
8.0.210.0000.00716.78
8.0.200.0040.00416.96
8.0.190.0000.00816.91
8.0.180.0070.00416.95
8.0.170.0000.00816.93
8.0.160.0030.00516.94
8.0.150.0070.00016.79
8.0.140.0030.00316.82
8.0.130.0030.00313.35
8.0.120.0040.00416.72
8.0.110.0070.00016.93
8.0.100.0070.00016.73
8.0.90.0040.00416.74
8.0.80.0070.00716.85
8.0.70.0000.00716.92
8.0.60.0020.00516.74
8.0.50.0000.00716.88
8.0.30.0080.00917.10
8.0.20.0120.00917.40
8.0.10.0030.00516.92
8.0.00.0110.01116.79
7.4.330.0020.00216.79
7.4.320.0000.00616.60
7.4.300.0000.00716.51
7.4.290.0040.00416.53
7.4.280.0000.00916.61
7.4.270.0060.00016.50
7.4.260.0000.00716.47
7.4.250.0000.00716.54
7.4.240.0010.00616.51
7.4.230.0030.00316.39
7.4.220.0160.00316.59
7.4.210.0040.01116.57
7.4.200.0000.00716.50
7.4.160.0060.00916.46
7.4.150.0090.01217.40
7.4.140.0080.01217.86
7.4.130.0090.01216.52
7.4.120.0080.01016.54
7.4.110.0040.01316.53
7.4.100.0100.01016.39
7.4.90.0070.01116.52
7.4.80.0100.01019.39
7.4.70.0080.00816.75
7.4.60.0070.01016.52
7.4.50.0060.00916.24
7.4.40.0100.00716.39
7.4.30.0080.01216.28
7.4.00.0110.00315.05
7.3.330.0060.00013.38
7.3.320.0000.00513.35
7.3.310.0000.00716.25
7.3.300.0000.00716.16
7.3.290.0100.01016.32
7.3.280.0080.00916.29
7.3.270.0110.00617.40
7.3.260.0100.01016.56
7.3.250.0090.00816.44
7.3.240.0100.00716.43
7.3.230.0130.01016.39
7.3.210.0090.00916.54
7.3.200.0060.01219.39
7.3.190.0070.01016.32
7.3.180.0130.00316.70
7.3.170.0110.00516.53
7.3.160.0110.01216.48
7.3.10.0260.00316.13
7.3.00.0190.00816.16
7.2.330.0130.00316.56
7.2.320.0090.00916.83
7.2.310.0100.00716.57
7.2.300.0140.00316.44
7.2.290.0100.01016.67
7.2.130.0240.00416.85
7.2.120.0090.01416.93
7.2.110.0270.01116.62
7.2.100.0220.00416.87
7.2.90.0590.00016.59
7.2.80.0170.00616.95
7.2.70.0110.00816.89
7.2.60.0060.01017.07
7.2.50.0100.01016.69
7.2.40.0140.00316.74
7.2.30.0000.01416.57
7.2.20.0120.00916.69
7.2.10.0270.00316.84
7.2.00.0130.00718.05
7.1.250.0230.00315.16
7.1.100.0040.00718.15
7.1.70.0040.00417.12
7.1.60.0070.01119.18
7.1.50.0240.01234.82
7.1.00.0070.07322.57
7.0.200.0000.00816.78
7.0.90.0500.05719.98
7.0.80.0630.08319.85
7.0.70.0500.06019.88
7.0.60.0470.04320.01
7.0.50.0600.07320.36
7.0.40.0000.04720.13
7.0.30.0070.05320.13
7.0.20.0030.08719.95
7.0.10.0100.08320.10
7.0.00.0070.06720.04
5.6.280.0030.03720.90
5.6.240.0030.08720.46
5.6.230.0070.07720.55
5.6.220.0070.08020.54
5.6.210.0070.07020.48
5.6.200.0070.08021.12
5.6.190.0070.04021.04
5.6.180.0100.06321.11
5.6.170.0030.07721.09
5.6.160.0130.07721.13
5.6.150.0100.07721.01
5.6.140.0130.04721.04
5.6.130.0030.09021.00
5.6.120.0070.06721.07
5.6.110.0100.08021.04
5.6.100.0000.09020.94
5.6.90.0030.08721.02
5.6.80.0000.08320.34
5.6.70.0070.05020.41
5.6.60.0070.07320.31
5.6.50.0070.05020.41
5.6.40.0100.08020.29
5.6.30.0200.06320.44
5.6.20.0030.07720.52
5.6.10.0000.08320.27
5.6.00.0000.04720.45
5.5.380.0070.08020.35
5.5.370.0000.05320.45
5.5.360.0070.04020.33
5.5.350.0070.08320.32
5.5.340.0170.08020.80
5.5.330.0070.07020.93
5.5.320.0100.04720.92
5.5.310.0030.08720.86
5.5.300.0100.07320.76
5.5.290.0070.04320.93
5.5.280.0200.07320.89
5.5.270.0130.08020.86
5.5.260.0200.07720.90
5.5.250.0130.08020.73
5.5.240.0030.06320.14
5.5.230.0000.08720.29
5.5.220.0070.07720.21
5.5.210.0130.07020.17
5.5.200.0030.06320.24
5.5.190.0170.07020.18
5.5.180.0100.07020.07
5.5.160.0100.04020.27
5.5.150.0070.08020.27
5.5.140.0030.04720.23
5.5.130.0030.06020.23
5.5.120.0000.09020.24
5.5.110.0100.07320.17
5.5.100.0100.07720.02
5.5.90.0070.04320.04
5.5.80.0100.06720.17
5.5.70.0100.07020.05
5.5.60.0200.05720.03
5.5.50.0100.04319.96
5.5.40.0030.05720.03
5.5.30.0130.05720.05
5.5.20.0200.05720.05
5.5.10.0170.07320.16
5.5.00.0100.07720.04

preferences:
34 ms | 401 KiB | 5 Q