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]); } } } $data = [ ['k' => [0]], ['k' => [1]], ]; ob_start(); debug_zval_dump($data[1]['k']); echo explode("\n", ob_get_clean())[0]."\n"; func($data); ob_start(); debug_zval_dump($data[1]['k']); echo explode("\n", ob_get_clean())[0]."\n"; 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)
8.3.60.0120.00316.63
8.3.50.0110.00721.00
8.3.40.0110.00718.92
8.3.30.0110.00318.55
8.3.20.0040.00420.13
8.3.10.0040.00423.52
8.3.00.0070.00023.52
8.2.180.0120.00616.50
8.2.170.0110.00422.96
8.2.160.0060.00920.38
8.2.150.0060.00324.18
8.2.140.0040.00424.66
8.2.130.0050.00226.16
8.2.120.0050.00319.68
8.2.110.0030.00620.97
8.2.100.0060.00618.05
8.2.90.0050.00319.17
8.2.80.0000.00817.97
8.2.70.0030.00717.75
8.2.60.0000.00818.05
8.2.50.0000.00918.07
8.2.40.0040.00422.15
8.2.30.0080.00019.56
8.2.20.0080.00017.62
8.2.10.0030.00718.13
8.2.00.0000.00718.18
8.1.280.0040.01125.92
8.1.270.0070.00024.66
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0030.00622.59
8.1.230.0030.00719.13
8.1.220.0000.00817.74
8.1.210.0050.00318.77
8.1.200.0040.00417.34
8.1.190.0090.00017.35
8.1.180.0040.00418.10
8.1.170.0040.00418.59
8.1.160.0000.00720.80
8.1.150.0050.00318.80
8.1.140.0000.00819.57
8.1.130.0030.00317.73
8.1.120.0000.00717.48
8.1.110.0040.00417.38
8.1.100.0090.00017.48
8.1.90.0000.00717.36
8.1.80.0000.00717.36
8.1.70.0000.00717.49
8.1.60.0070.00017.56
8.1.50.0000.00817.56
8.1.40.0080.00017.54
8.1.30.0040.00417.66
8.1.20.0030.00617.53
8.1.10.0000.00717.54
8.1.00.0040.00417.48
8.0.300.0000.00718.77
8.0.290.0040.00416.75
8.0.280.0050.00218.35
8.0.270.0040.00417.22
8.0.260.0000.00617.30
8.0.250.0080.00016.98
8.0.240.0030.00316.96
8.0.230.0030.00316.98
8.0.220.0000.00816.84
8.0.210.0070.00016.91
8.0.200.0030.00716.84
8.0.190.0020.00516.99
8.0.180.0030.00716.77
8.0.170.0080.00016.95
8.0.160.0050.00216.84
8.0.150.0040.00416.86
8.0.140.0050.00216.75
8.0.130.0000.00613.27
8.0.120.0000.00816.78
8.0.110.0020.00516.74
8.0.100.0060.00316.74
8.0.90.0040.00416.84
8.0.80.0060.01216.89
8.0.70.0070.00016.80
8.0.60.0000.00717.02
8.0.50.0040.00416.73
8.0.30.0110.00817.15
8.0.20.0110.01017.40
8.0.10.0000.00716.98
8.0.00.0080.01116.86
7.4.330.0020.00216.74
7.4.320.0030.00316.50
7.4.300.0000.00716.55
7.4.290.0080.00016.43
7.4.280.0060.00316.60
7.4.270.0030.00316.51
7.4.260.0060.00016.63
7.4.250.0040.00416.36
7.4.240.0040.00416.60
7.4.230.0000.00716.67
7.4.220.0110.00716.50
7.4.210.0060.01016.60
7.4.200.0030.00316.62
7.4.160.0030.01316.57
7.4.150.0040.01417.40
7.4.140.0100.00917.86
7.4.130.0070.01016.55
7.4.120.0140.00316.53
7.4.110.0060.01216.46
7.4.100.0110.00716.43
7.4.90.0160.00316.68
7.4.80.0130.01019.39
7.4.70.0080.00916.39
7.4.60.0030.01516.32
7.4.50.0070.00716.36
7.4.40.0030.01616.58
7.4.30.0110.01116.48
7.4.00.0040.00814.92
7.3.330.0050.00013.38
7.3.320.0030.00313.22
7.3.310.0040.00416.39
7.3.300.0030.00316.38
7.3.290.0090.00716.39
7.3.280.0130.01316.36
7.3.270.0030.01617.40
7.3.260.0100.01016.40
7.3.240.0050.01116.51
7.3.230.0110.00716.39
7.3.210.0110.01216.43
7.3.200.0080.00816.33
7.3.190.0080.00816.45
7.3.180.0060.01316.33
7.3.170.0150.00616.53
7.3.160.0100.00716.41
7.3.10.0000.01516.34
7.3.00.0090.00316.58
7.2.330.0060.01216.80
7.2.320.0100.01116.77
7.2.310.0030.01416.59
7.2.300.0100.01416.82
7.2.290.0070.01016.77
7.2.130.0090.00616.86
7.2.120.0100.00316.98
7.2.110.0060.00316.82
7.2.100.0090.00316.89
7.2.90.0040.01116.99
7.2.80.0030.00716.77
7.2.70.0100.00317.08
7.2.60.0130.00316.88
7.2.50.0100.00317.05
7.2.40.0000.00916.95
7.2.30.0000.01117.02
7.2.20.0000.01316.93
7.2.10.0070.00417.08
7.2.00.0030.00718.10
7.1.250.0060.00615.97
7.1.200.0070.00415.84
7.1.100.0070.00718.30
7.1.70.0000.00816.93
7.1.60.0040.01219.18
7.1.50.0040.01116.70
7.1.00.0030.07322.36
7.0.200.0000.01016.91
7.0.90.0100.08719.91
7.0.80.0100.08320.03
7.0.70.0200.04719.91
7.0.60.0100.07719.96
7.0.50.0130.08020.26
7.0.40.0000.08320.03
7.0.30.0000.08320.13
7.0.20.0100.05320.14
7.0.10.0070.04320.09
7.0.00.0030.06720.13
5.6.280.0070.04020.93
5.6.240.0000.09320.64
5.6.230.0130.07720.69
5.6.220.0100.08020.55
5.6.210.0170.06320.65
5.6.200.0070.08721.11
5.6.190.0100.08321.14
5.6.180.0000.05320.91
5.6.170.0170.07321.01
5.6.160.0070.05721.11
5.6.150.0070.08021.04
5.6.140.0030.08021.04
5.6.130.0200.07021.08
5.6.120.0100.06321.13
5.6.110.0130.07721.11
5.6.100.0030.08021.07
5.6.90.0100.08021.00
5.6.80.0130.06720.46
5.6.70.0100.07720.43
5.6.60.0070.08020.48
5.6.50.0100.05720.43
5.6.40.0070.08320.25
5.6.30.0130.07020.39
5.6.20.0100.04320.39
5.6.10.0030.07320.43
5.6.00.0070.08020.41
5.5.380.0070.05720.36
5.5.370.0030.05020.38
5.5.360.0170.05720.40
5.5.350.0000.07320.37
5.5.340.0130.06720.89
5.5.330.0030.08320.77
5.5.320.0230.06020.88
5.5.310.0000.05020.91
5.5.300.0070.05720.76
5.5.290.0130.08020.89
5.5.280.0130.04020.86
5.5.270.0130.05320.91
5.5.260.0130.08020.78
5.5.250.0000.09020.65
5.5.240.0030.07320.27
5.5.230.0030.08720.11
5.5.220.0070.08320.27
5.5.210.0070.08720.30
5.5.200.0070.07320.15
5.5.190.0030.05320.16
5.5.180.0070.08020.15
5.5.160.0070.08020.23
5.5.150.0100.06320.21
5.5.140.0070.08320.11
5.5.130.0070.05020.25
5.5.120.0030.08020.21
5.5.110.0070.08020.21
5.5.100.0100.06020.17
5.5.90.0230.05720.05
5.5.80.0100.07019.98
5.5.70.0030.07720.09
5.5.60.0170.05320.09
5.5.50.0030.04019.96
5.5.40.0070.08320.10
5.5.30.0100.07319.93
5.5.20.0100.06320.06
5.5.10.0030.07320.01
5.5.00.0070.07719.97

preferences:
47.89 ms | 401 KiB | 5 Q