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 substr(ob_get_clean(), 9, 11)."\n"; func($data); ob_start(); debug_zval_dump($data[1]['k']); echo substr(ob_get_clean(), 9, 11)."\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)
8.3.40.0040.01218.58
8.3.30.0040.01118.71
8.3.20.0140.00320.21
8.3.10.0050.00321.76
8.3.00.0040.00423.66
8.2.170.0090.00619.12
8.2.160.0100.00322.96
8.2.150.0050.00325.66
8.2.140.0040.00424.66
8.2.130.0080.00019.83
8.2.120.0060.00326.35
8.2.110.0030.00721.11
8.2.100.0040.00717.91
8.2.90.0000.00817.88
8.2.80.0060.00318.93
8.2.70.0060.00317.50
8.2.60.0040.00417.63
8.2.50.0030.00617.75
8.2.40.0030.00519.66
8.2.30.0050.00219.60
8.2.20.0030.00617.81
8.2.10.0060.00618.13
8.2.00.0000.00718.02
8.1.270.0070.00723.96
8.1.260.0040.00428.09
8.1.250.0070.00028.09
8.1.240.0030.01423.81
8.1.230.0100.00318.98
8.1.220.0030.00617.74
8.1.210.0000.00818.77
8.1.200.0040.00417.23
8.1.190.0000.00817.22
8.1.180.0040.00418.10
8.1.170.0080.00017.62
8.1.160.0080.00020.80
8.1.150.0000.00818.93
8.1.140.0050.00319.52
8.1.130.0030.00317.69
8.1.120.0040.00417.47
8.1.110.0020.00517.33
8.1.100.0040.00417.35
8.1.90.0030.00617.46
8.1.80.0000.00717.48
8.1.70.0000.00817.41
8.1.60.0080.00017.57
8.1.50.0000.00817.52
8.1.40.0080.00017.51
8.1.30.0040.00417.54
8.1.20.0000.00717.47
8.1.10.0050.00317.59
8.1.00.0000.00817.51
8.0.300.0040.00419.56
8.0.290.0000.00716.75
8.0.280.0070.00018.41
8.0.270.0040.00417.24
8.0.260.0000.00617.16
8.0.250.0030.00316.96
8.0.240.0040.00416.90
8.0.230.0030.00316.97
8.0.220.0000.00816.80
8.0.210.0000.00716.75
8.0.200.0000.00916.97
8.0.190.0030.00616.91
8.0.180.0030.00716.92
8.0.170.0030.00516.93
8.0.160.0040.00416.80
8.0.150.0040.00416.76
8.0.140.0000.00816.85
8.0.130.0000.00613.34
8.0.120.0000.00816.89
8.0.110.0040.00416.80
8.0.100.0000.00816.71
8.0.90.0040.00316.98
8.0.80.0070.01016.84
8.0.70.0070.00016.73
8.0.60.0030.00316.84
8.0.50.0040.00416.89
8.0.30.0140.00317.14
8.0.20.0120.00717.40
8.0.10.0050.00216.97
8.0.00.0100.01116.82
7.4.330.0050.00016.66
7.4.320.0000.00616.53
7.4.300.0000.00716.50
7.4.290.0070.00016.46
7.4.280.0060.00316.50
7.4.270.0030.00316.47
7.4.260.0050.00216.44
7.4.250.0000.00816.57
7.4.240.0060.00216.51
7.4.230.0030.00316.34
7.4.220.0120.00616.48
7.4.210.0130.00716.55
7.4.200.0000.00716.58
7.4.160.0120.00416.35
7.4.150.0120.00617.40
7.4.140.0130.00517.86
7.4.130.0120.00616.64
7.4.120.0070.01116.45
7.4.110.0070.01016.52
7.4.100.0180.00616.66
7.4.90.0070.01016.56
7.4.80.0130.00519.39
7.4.70.0170.00016.50
7.4.60.0130.01016.46
7.4.50.0040.01116.56
7.4.40.0090.01516.32
7.4.30.0060.01316.51
7.4.00.0150.00314.98
7.3.330.0020.00213.22
7.3.320.0000.00513.30
7.3.310.0000.00716.27
7.3.300.0040.00416.47
7.3.290.0090.00616.34
7.3.280.0050.01216.31
7.3.270.0080.01317.40
7.3.260.0100.00716.38
7.3.240.0060.01116.44
7.3.230.0060.01116.53
7.3.210.0070.01016.68
7.3.200.0040.01519.39
7.3.190.0100.00716.45
7.3.180.0100.00616.33
7.3.170.0220.00016.65
7.3.160.0160.00016.29
7.3.10.0000.00916.54
7.3.00.0080.00816.03
7.2.330.0240.00016.70
7.2.320.0080.00916.48
7.2.310.0180.00016.62
7.2.300.0090.00916.63
7.2.290.0070.01416.59
7.2.130.0080.00816.48
7.2.120.0100.00716.75
7.2.110.0060.00616.55
7.2.100.0060.00616.44
7.2.90.0040.00816.48
7.2.80.0130.01316.52
7.2.70.0130.01016.69
7.2.60.0180.00516.78
7.2.50.0140.00716.45
7.2.40.0160.00416.84
7.2.30.0110.00816.68
7.2.20.0160.00516.48
7.2.10.0120.00016.59
7.2.00.0020.01118.01
7.1.250.0030.00915.63
7.1.200.0030.01015.99
7.1.100.0030.01017.93
7.1.70.0030.01017.19
7.1.60.0030.01619.18
7.1.50.0110.00016.86
7.1.00.0070.07722.28
7.0.200.0070.00316.86
7.0.90.0200.04320.00
7.0.80.0070.04020.00
7.0.70.0330.07319.93
7.0.60.0670.07319.98
7.0.50.0470.03720.34
7.0.40.0070.07320.13
7.0.30.0070.08720.04
7.0.20.0100.04720.05
7.0.10.0070.04320.09
7.0.00.0030.05020.07
5.6.280.0030.04021.13
5.6.240.0070.05020.70
5.6.230.0000.05720.55
5.6.220.0030.08720.55
5.6.210.0100.08320.61
5.6.200.0070.05021.07
5.6.190.0100.05721.05
5.6.180.0030.04721.14
5.6.170.0070.06020.94
5.6.160.0100.08020.96
5.6.150.0130.05320.96
5.6.140.0130.08721.10
5.6.130.0030.05021.04
5.6.120.0070.06320.95
5.6.110.0070.08021.10
5.6.100.0070.08721.09
5.6.90.0030.06021.06
5.6.80.0130.08020.46
5.6.70.0100.07720.42
5.6.60.0100.06020.38
5.6.50.0130.07720.36
5.6.40.0100.06020.37
5.6.30.0070.04720.30
5.6.20.0130.04720.40
5.6.10.0070.08020.36
5.6.00.0070.05320.29
5.5.380.0030.04720.57
5.5.370.0030.04720.56
5.5.360.0170.07020.49
5.5.350.0130.07020.34
5.5.340.0000.06320.88
5.5.330.0030.07720.89
5.5.320.0100.08020.80
5.5.310.0070.04320.84
5.5.300.0130.04720.63
5.5.290.0170.07020.73
5.5.280.0030.04320.91
5.5.270.0070.04720.82
5.5.260.0100.06720.71
5.5.250.0000.07320.60
5.5.240.0130.05020.16
5.5.230.0130.07720.25
5.5.220.0030.05720.02
5.5.210.0130.07320.21
5.5.200.0130.07020.16
5.5.190.0130.04320.13
5.5.180.0070.07020.11
5.5.160.0130.07320.27
5.5.150.0030.08020.23
5.5.140.0100.08020.11
5.5.130.0100.07720.27
5.5.120.0030.08320.25
5.5.110.0070.07320.10
5.5.100.0070.07020.11
5.5.90.0030.05320.15
5.5.80.0230.03720.07
5.5.70.0070.08320.06
5.5.60.0030.07720.05
5.5.50.0070.08020.00
5.5.40.0070.06720.10
5.5.30.0170.06720.16
5.5.20.0030.06720.11
5.5.10.0070.08020.02
5.5.00.0030.07320.10

preferences:
47.7 ms | 400 KiB | 5 Q