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)
8.3.60.0150.00016.63
8.3.50.0000.01516.14
8.3.40.0040.01118.67
8.3.30.0150.00318.66
8.3.20.0050.00320.09
8.3.10.0060.00323.70
8.3.00.0070.00023.69
8.2.180.0070.00716.38
8.2.170.0110.00422.96
8.2.160.0100.01020.34
8.2.150.0080.00025.66
8.2.140.0080.01224.66
8.2.130.0070.00319.95
8.2.120.0040.00426.35
8.2.110.0180.00321.03
8.2.100.0040.00717.84
8.2.90.0060.00318.03
8.2.80.0040.00418.16
8.2.70.0030.00918.05
8.2.60.0030.00618.16
8.2.50.0000.00818.10
8.2.40.0030.00622.18
8.2.30.0000.00819.48
8.2.20.0030.00517.67
8.2.10.0000.01018.18
8.2.00.0070.00018.03
8.1.280.0090.00925.92
8.1.270.0110.00423.91
8.1.260.0040.00428.09
8.1.250.0000.00728.09
8.1.240.0100.01023.80
8.1.230.0040.00822.75
8.1.220.0090.00017.78
8.1.210.0050.00318.77
8.1.200.0080.00517.25
8.1.190.0040.00417.23
8.1.180.0030.00518.10
8.1.170.0080.00018.70
8.1.160.0000.00720.71
8.1.150.0000.00718.94
8.1.140.0000.00819.57
8.1.130.0040.00417.70
8.1.120.0000.00717.36
8.1.110.0030.00517.47
8.1.100.0040.00417.38
8.1.90.0000.00717.36
8.1.80.0000.00717.32
8.1.70.0000.00817.42
8.1.60.0040.00417.48
8.1.50.0040.00417.52
8.1.40.0050.00317.57
8.1.30.0030.00617.55
8.1.20.0070.00017.62
8.1.10.0030.00517.56
8.1.00.0080.00017.57
8.0.300.0000.00819.64
8.0.290.0000.00716.63
8.0.280.0040.00418.51
8.0.270.0040.00417.25
8.0.260.0030.00317.25
8.0.250.0040.00416.86
8.0.240.0000.00716.92
8.0.230.0080.00016.94
8.0.220.0030.00316.79
8.0.210.0070.00016.77
8.0.200.0030.00616.84
8.0.190.0030.00316.88
8.0.180.0030.00616.83
8.0.170.0050.00316.93
8.0.160.0040.00416.86
8.0.150.0030.00316.79
8.0.140.0000.00716.85
8.0.130.0000.00513.38
8.0.120.0040.00416.84
8.0.110.0040.00416.87
8.0.100.0000.00716.79
8.0.90.0040.00416.84
8.0.80.0030.01216.89
8.0.70.0000.00716.71
8.0.60.0000.00816.95
8.0.50.0070.00016.78
8.0.30.0100.00917.18
8.0.20.0100.01117.40
8.0.10.0040.00417.00
8.0.00.0100.01116.81
7.4.330.0000.00516.66
7.4.320.0000.00716.52
7.4.300.0040.00416.40
7.4.290.0040.00416.50
7.4.280.0060.00316.52
7.4.270.0000.00616.60
7.4.260.0040.00416.58
7.4.250.0000.00816.42
7.4.240.0040.00316.50
7.4.230.0030.00316.65
7.4.220.0150.00416.69
7.4.210.0220.00016.64
7.4.200.0000.00816.68
7.4.160.0090.00916.63
7.4.150.0170.00317.40
7.4.140.0080.01317.86
7.4.130.0090.00916.51
7.4.120.0080.01016.39
7.4.110.0140.00316.33
7.4.100.0070.01116.41
7.4.90.0120.00616.50
7.4.80.0180.00319.39
7.4.70.0060.01016.38
7.4.60.0110.00616.56
7.4.50.0030.01316.61
7.4.40.0070.01116.57
7.4.30.0100.01316.54
7.4.00.0040.01214.95
7.3.330.0000.00513.15
7.3.320.0030.00313.37
7.3.310.0040.00416.41
7.3.300.0070.00016.36
7.3.290.0100.00616.37
7.3.280.0100.00816.36
7.3.270.0120.00617.40
7.3.260.0070.01416.60
7.3.240.0120.00516.34
7.3.230.0140.00816.39
7.3.210.0030.01516.33
7.3.200.0110.00719.39
7.3.190.0040.01216.44
7.3.180.0100.00716.65
7.3.170.0030.01316.61
7.3.160.0060.01016.47
7.3.120.0060.01014.59
7.3.110.0090.00714.87
7.3.100.0060.00814.89
7.3.90.0060.00914.98
7.3.80.0010.01214.80
7.3.70.0040.01014.75
7.3.60.0050.00714.78
7.3.50.0070.00814.76
7.3.40.0050.00714.94
7.3.30.0040.00614.83
7.3.20.0010.01316.54
7.3.10.0050.00816.63
7.3.00.0040.00716.50
7.2.330.0070.01016.68
7.2.320.0070.01416.72
7.2.310.0150.00916.77
7.2.300.0030.01516.74
7.2.290.0070.01016.79
7.2.250.0080.01015.11
7.2.240.0070.01215.08
7.2.230.0070.00915.17
7.2.220.0060.00715.10
7.2.210.0060.00715.02
7.2.200.0070.00615.09
7.2.190.0110.00314.91
7.2.180.0050.00715.10
7.2.170.0030.00915.08
7.2.80.0030.00916.45
7.2.60.0030.01016.64
7.2.00.0030.01019.61
7.1.330.0050.00815.79
7.1.320.0060.00615.83
7.1.310.0060.00715.88
7.1.300.0030.00915.65
7.1.290.0060.00715.83
7.1.280.0020.01015.75
7.1.270.0090.00215.63
7.1.260.0070.00715.74
7.1.200.0070.00715.97
7.1.100.0000.01217.93
7.1.70.0050.00917.18
7.1.60.0080.01217.11
7.1.50.0120.00416.99
7.1.40.0050.00516.50
7.1.30.0080.00816.72
7.1.20.0050.01016.74
7.1.10.0040.00816.69
7.1.00.0090.00016.68
7.0.200.0070.00416.81
7.0.190.0080.00516.75
7.0.180.0080.00416.13
7.0.170.0130.00016.17
7.0.160.0000.01316.15
7.0.150.0060.00916.19
7.0.140.0070.00716.40
7.0.130.0040.00716.79
7.0.120.0060.00616.52
7.0.110.0040.00816.49
7.0.100.0070.00516.33
7.0.90.0030.00816.36
7.0.80.0080.00416.57
7.0.70.0080.00316.35
7.0.60.0060.00616.16
7.0.50.0050.00516.23
7.0.40.0040.00815.18
7.0.30.0070.00515.18
7.0.20.0040.00415.18
7.0.10.0040.00415.18
7.0.00.0060.00315.18
5.6.300.0030.04720.88
5.6.290.0030.07320.91
5.6.280.0100.03821.05
5.6.270.0120.03920.88
5.6.260.0100.03620.80
5.6.250.0070.05921.09
5.6.240.0060.04220.99
5.6.230.0040.04320.93
5.6.220.0000.05620.79
5.6.210.0090.03720.96
5.6.200.0120.03620.83
5.6.190.0030.04320.95
5.6.180.0030.04120.94
5.6.170.0060.03821.04
5.6.160.0030.04620.83
5.6.150.0100.03820.94
5.6.140.0060.03820.96
5.6.130.0000.04720.99
5.6.120.0070.03720.74
5.6.110.0000.05320.78
5.6.100.0100.03820.97
5.6.90.0070.06320.97
5.6.80.0000.04120.15
5.6.70.0030.04920.23
5.6.60.0070.04220.42
5.6.50.0100.03020.13
5.6.40.0130.03720.39
5.6.30.0030.03920.22
5.6.20.0030.04020.29
5.6.10.0070.03420.18
5.6.00.0030.03820.32
5.5.380.0070.03517.57
5.5.370.0070.03817.53
5.5.360.0040.04117.48
5.5.350.0030.04017.52
5.5.340.0030.04518.09
5.5.330.0030.04317.84
5.5.320.0040.03918.08
5.5.310.0000.04218.04
5.5.300.0030.04018.08
5.5.290.0040.04217.99
5.5.280.0000.05218.02
5.5.270.0060.04518.17
5.5.260.0070.03718.08
5.5.250.0030.05117.68
5.5.240.0030.03717.48
5.5.230.0060.03517.40
5.5.220.0070.03717.51
5.5.210.0060.03517.44
5.5.200.0070.04217.48
5.5.190.0000.04117.05
5.5.180.0030.03717.09
5.5.160.0070.03317.21
5.5.150.0000.04517.48
5.5.140.0210.03217.35
5.5.130.0170.03717.36
5.5.120.0000.04917.38
5.5.110.0030.03817.38
5.5.100.0030.04117.34
5.5.90.0070.03717.31
5.5.80.0000.04216.99
5.5.70.0000.04017.37
5.5.60.0000.06517.33
5.5.50.0000.04017.08
5.5.40.0030.04217.33
5.5.30.0000.04017.34
5.5.20.0100.03217.24
5.5.10.0030.03716.98
5.5.00.0030.04017.32

preferences:
57.7 ms | 400 KiB | 5 Q