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, -1)."\n"; func($data); ob_start(); debug_zval_dump($data[1]['k']); echo substr(ob_get_clean(), 9, -1)."\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)
8.3.60.0040.01116.74
8.3.50.0060.01016.62
8.3.40.0120.00318.67
8.3.30.0140.00318.63
8.3.20.0090.00920.21
8.3.10.0050.00321.90
8.3.00.0080.00023.61
8.2.180.0090.00618.16
8.2.170.0140.00022.96
8.2.160.0100.00320.39
8.2.150.0040.00424.18
8.2.140.0030.00524.66
8.2.130.0060.00319.95
8.2.120.0000.00726.35
8.2.110.0060.01120.43
8.2.100.0080.00417.92
8.2.90.0080.00019.36
8.2.80.0090.00017.97
8.2.70.0000.00817.63
8.2.60.0000.00717.93
8.2.50.0060.00618.07
8.2.40.0000.00822.14
8.2.30.0040.00419.50
8.2.20.0000.00817.67
8.2.10.0060.00318.03
8.2.00.0050.00218.17
8.1.280.0070.01425.92
8.1.270.0070.00723.67
8.1.260.0030.00528.09
8.1.250.0070.00028.09
8.1.240.0100.00719.28
8.1.230.0070.00419.00
8.1.220.0050.00317.74
8.1.210.0080.00018.77
8.1.200.0060.00317.35
8.1.190.0080.00017.22
8.1.180.0000.00818.10
8.1.170.0030.00618.46
8.1.160.0070.00020.60
8.1.150.0070.00018.80
8.1.140.0050.00319.48
8.1.130.0000.00719.28
8.1.120.0070.00017.51
8.1.110.0050.00217.46
8.1.100.0000.00817.38
8.1.90.0090.00017.38
8.1.80.0030.00517.45
8.1.70.0000.00717.46
8.1.60.0050.00517.48
8.1.50.0040.00417.41
8.1.40.0000.00817.54
8.1.30.0040.00417.54
8.1.20.0070.00017.66
8.1.10.0050.00317.59
8.1.00.0040.00417.48
8.0.300.0000.00818.77
8.0.290.0040.00416.61
8.0.280.0030.00518.38
8.0.270.0070.00017.30
8.0.260.0080.00018.68
8.0.250.0030.00316.85
8.0.240.0000.00716.89
8.0.230.0000.00717.02
8.0.220.0000.00716.77
8.0.210.0030.00316.78
8.0.200.0050.00316.96
8.0.190.0000.00816.86
8.0.180.0090.00016.95
8.0.170.0000.00816.89
8.0.160.0000.00716.89
8.0.150.0000.00716.82
8.0.140.0070.00016.79
8.0.130.0060.00013.32
8.0.120.0000.00916.86
8.0.110.0000.00716.85
8.0.100.0040.00416.79
8.0.90.0000.00816.74
8.0.80.0060.00916.86
8.0.70.0000.00716.89
8.0.60.0000.00716.95
8.0.50.0080.00016.93
8.0.30.0100.00817.05
8.0.20.0150.00417.40
8.0.10.0040.00416.88
8.0.00.0080.01316.92
7.4.330.0030.00316.66
7.4.320.0000.00616.52
7.4.300.0070.00016.60
7.4.290.0000.00716.52
7.4.280.0040.00516.61
7.4.270.0030.00316.64
7.4.260.0040.00416.48
7.4.250.0000.00716.46
7.4.240.0030.00316.48
7.4.230.0000.00716.58
7.4.220.0090.00916.54
7.4.210.0090.00916.49
7.4.200.0040.00416.58
7.4.160.0090.00616.45
7.4.150.0070.01317.40
7.4.140.0140.01017.86
7.4.130.0070.01016.55
7.4.120.0080.00916.56
7.4.110.0140.00316.37
7.4.100.0130.00316.64
7.4.90.0030.01516.57
7.4.80.0160.00619.39
7.4.70.0030.01316.41
7.4.60.0070.01016.58
7.4.50.0120.00216.52
7.4.40.0140.01016.52
7.4.30.0110.00716.72
7.4.00.0050.01114.90
7.3.330.0020.00213.38
7.3.320.0030.00313.36
7.3.310.0030.00316.32
7.3.300.0070.00016.31
7.3.290.0100.00816.36
7.3.280.0120.00616.38
7.3.270.0110.00717.40
7.3.260.0090.00916.57
7.3.250.0090.00816.36
7.3.240.0150.00316.55
7.3.230.0130.00316.66
7.3.210.0060.01216.41
7.3.200.0030.01519.39
7.3.190.0060.00916.36
7.3.180.0070.01016.32
7.3.170.0110.01116.56
7.3.160.0110.01116.44
7.3.120.0040.01514.97
7.3.110.0110.00714.48
7.3.100.0080.00815.04
7.3.90.0060.00314.62
7.3.80.0030.00914.99
7.3.70.0070.00714.64
7.3.60.0060.00614.84
7.3.50.0040.01114.98
7.3.40.0140.00014.74
7.3.30.0000.01614.68
7.3.20.0100.00616.64
7.3.10.0060.00716.62
7.3.00.0120.00216.71
7.2.330.0060.01316.73
7.2.320.0060.01116.65
7.2.310.0150.00316.57
7.2.300.0090.00916.72
7.2.290.0130.01016.72
7.2.250.0090.00914.90
7.2.240.0000.01514.95
7.2.230.0090.00914.95
7.2.220.0070.00414.92
7.2.210.0030.01214.86
7.2.200.0000.01515.20
7.2.190.0000.01315.08
7.2.180.0030.00914.91
7.2.170.0060.00915.16
7.2.130.0050.01116.95
7.2.120.0070.00616.87
7.2.110.0070.00716.82
7.2.100.0060.00916.99
7.2.90.0060.00516.77
7.2.80.0050.00816.85
7.2.70.0070.00816.72
7.2.60.0060.00917.05
7.2.50.0070.00517.01
7.2.40.0070.00616.92
7.2.30.0030.00917.00
7.2.20.0010.00916.86
7.2.10.0040.01116.70
7.2.00.0030.00817.73
7.1.330.0030.00915.70
7.1.320.0040.00715.96
7.1.310.0060.00315.92
7.1.300.0120.00315.83
7.1.290.0110.00415.74
7.1.280.0030.01215.86
7.1.270.0090.00615.86
7.1.260.0060.00615.71
7.1.250.0050.00515.88
7.1.240.0030.00615.57
7.1.230.0060.00615.51
7.1.220.0070.00315.65
7.1.210.0070.00715.87
7.1.200.0080.00415.79
7.1.190.0100.00315.68
7.1.180.0000.01215.81
7.1.170.0000.00915.57
7.1.160.0030.00715.63
7.1.150.0060.00915.75
7.1.140.0090.00915.89
7.1.130.0080.00515.92
7.1.120.0100.00315.90
7.1.110.0030.00916.04
7.1.100.0020.00816.74
7.1.90.0080.00815.79
7.1.80.0080.00815.99
7.1.70.0030.00716.51
7.1.60.0090.00417.60
7.1.50.0060.00616.26
7.1.40.0060.00615.87
7.1.30.0110.00415.98
7.1.20.0000.01815.81
7.1.10.0030.00515.71
7.1.00.0080.03819.22
7.0.330.0060.00615.07
7.0.320.0070.00715.41
7.0.310.0100.00715.16
7.0.300.0040.01115.38
7.0.290.0050.00315.21
7.0.280.0000.01315.38
7.0.270.0100.00315.12
7.0.260.0090.00615.50
7.0.250.0040.00815.35
7.0.240.0030.00915.62
7.0.230.0060.00815.64
7.0.220.0110.00015.34
7.0.210.0090.00615.40
7.0.200.0030.00815.99
7.0.190.0110.00015.46
7.0.180.0040.00915.45
7.0.170.0000.00915.55
7.0.160.0040.01115.59
7.0.150.0130.00015.43
7.0.140.0030.00615.47
7.0.130.0120.00315.46
7.0.120.0030.00715.34
7.0.110.0040.00715.58
7.0.100.0030.00715.44
7.0.90.0400.04317.73
7.0.80.0320.04517.62
7.0.70.0330.04017.68
7.0.60.0360.03817.75
7.0.50.0350.03317.81
7.0.40.0050.04016.74
7.0.30.0060.02316.72
7.0.20.0060.04416.81
7.0.10.0070.02216.75
7.0.00.0070.02816.85
5.6.380.0070.01014.72
5.6.370.0160.00014.44
5.6.360.0030.00514.46
5.6.350.0030.01214.35
5.6.340.0060.00914.34
5.6.330.0030.00514.41
5.6.320.0060.00514.47
5.6.310.0110.00314.28
5.6.300.0110.00614.73
5.6.290.0120.00014.61
5.6.280.0050.02517.58
5.6.270.0070.00714.71
5.6.260.0060.00614.73
5.6.250.0040.00714.64
5.6.240.0030.03217.63
5.6.230.0080.03517.48
5.6.220.0100.02017.54
5.6.210.0070.04317.42
5.6.200.0070.03917.63
5.6.190.0020.04717.78
5.6.180.0130.02817.63
5.6.170.0070.03117.72
5.6.160.0100.02217.86
5.6.150.0040.02617.58
5.6.140.0050.03217.83
5.6.130.0050.02717.62
5.6.120.0070.03517.71
5.6.110.0080.04417.81
5.6.100.0080.02217.71
5.6.90.0100.03017.70
5.6.80.0050.04417.39
5.6.70.0050.04417.51
5.6.60.0100.03317.34
5.6.50.0080.03817.29
5.6.40.0100.03717.41
5.6.30.0020.03317.44
5.6.20.0080.03117.40
5.6.10.0120.02617.32
5.6.00.0080.04317.31
5.5.380.0040.03615.87
5.5.370.0050.04415.69
5.5.360.0070.03315.87
5.5.350.0070.04015.78
5.5.340.0080.03415.89
5.5.330.0100.03316.10
5.5.320.0070.03316.03
5.5.310.0080.04015.97
5.5.300.0080.03315.92
5.5.290.0040.02516.01
5.5.280.0100.03316.11
5.5.270.0100.04016.18
5.5.260.0090.04416.15
5.5.250.0030.04415.98
5.5.240.0130.03215.82
5.5.230.0080.04015.77
5.5.220.0020.04115.60
5.5.210.0070.03715.63
5.5.200.0120.02815.70
5.5.190.0020.02415.54
5.5.180.0070.02715.79
5.5.170.0040.00411.29
5.5.160.0070.03915.75
5.5.150.0050.04115.75
5.5.140.0020.03715.59
5.5.130.0050.04015.71
5.5.120.0070.04215.67
5.5.110.0120.03715.84
5.5.100.0050.04115.74
5.5.90.0040.02815.64
5.5.80.0050.04215.71
5.5.70.0090.03915.68
5.5.60.0030.03915.66
5.5.50.0120.03515.62
5.5.40.0050.03015.72
5.5.30.0050.04515.64
5.5.20.0050.04315.61
5.5.10.0030.03915.54
5.5.00.0050.03515.48

preferences:
56.06 ms | 400 KiB | 5 Q