3v4l.org

run code in 300+ PHP versions simultaneously
<?php function mergeDeepArray(array $arrays, $preserve_integer_keys = FALSE) { $result = []; foreach ($arrays as $array) { foreach ($array as $key => $value) { // Renumber integer keys as array_merge_recursive() does unless // $preserve_integer_keys is set to TRUE. Note that PHP automatically // converts array keys that are integer strings (e.g., '1') to integers. if (is_int($key) && !$preserve_integer_keys) { $result[] = $value; } // Recurse when both values are arrays. elseif (isset($result[$key]) && is_array($result[$key]) && is_array($value)) { $result[$key] = mergeDeepArray([$result[$key], $value], $preserve_integer_keys); } // Otherwise, use the latter value, overriding any previous value. else { $result[$key] = $value; } } } return $result; } $a = [['foo' => [2,3]], ['foo' => [4, 5]]]; print_r(mergeDeepArray($a)['foo']); $a = [['foo' => new ArrayObject([2,3])], ['foo' => new ArrayObject([4, 5])]]; print_r((array)mergeDeepArray($a)['foo']);

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)
8.3.70.0090.00918.55
8.3.60.0170.00318.31
8.3.50.0110.00418.08
8.3.40.0120.00418.83
8.3.30.0120.00318.84
8.3.20.0080.00023.48
8.3.10.0050.00323.48
8.3.00.0070.00022.40
8.2.190.0130.00316.75
8.2.180.0100.00718.29
8.2.170.0100.01022.96
8.2.160.0100.00322.10
8.2.150.0000.00824.18
8.2.140.0080.00024.66
8.2.130.0000.00826.16
8.2.120.0050.00321.13
8.2.110.0100.00021.00
8.2.100.0090.00319.76
8.2.90.0060.00317.75
8.2.80.0040.00418.82
8.2.70.0040.00417.93
8.2.60.0090.00018.34
8.2.50.0030.00518.10
8.2.40.0040.00419.46
8.2.30.0000.00719.32
8.2.20.0040.00418.20
8.2.10.0000.00719.22
8.2.00.0070.00019.31
8.1.280.0060.01225.92
8.1.270.0060.00322.20
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0000.01120.87
8.1.230.0100.00017.68
8.1.220.0040.00417.79
8.1.210.0080.00018.77
8.1.200.0060.00317.25
8.1.190.0080.00017.35
8.1.180.0030.00518.10
8.1.170.0060.00320.83
8.1.160.0040.00419.01
8.1.150.0040.00418.94
8.1.140.0040.00419.09
8.1.130.0030.00317.46
8.1.120.0040.00417.48
8.1.110.0030.00617.34
8.1.100.0000.00717.46
8.1.90.0040.00317.34
8.1.80.0070.00017.44
8.1.70.0000.00817.52
8.1.60.0040.00417.60
8.1.50.0050.00317.54
8.1.40.0050.00317.51
8.1.30.0040.00417.66
8.1.20.0000.00817.71
8.1.10.0050.00317.51
8.1.00.0030.00717.49
8.0.300.0000.00718.77
8.0.290.0040.00416.63
8.0.280.0040.00418.32
8.0.270.0000.00717.21
8.0.260.0080.00016.88
8.0.250.0030.00316.86
8.0.240.0000.00716.95
8.0.230.0030.00316.83
8.0.220.0040.00416.90
8.0.210.0000.00716.88
8.0.200.0030.00616.83
8.0.190.0000.00816.96
8.0.180.0000.00717.01
8.0.170.0000.00916.84
8.0.160.0040.00416.96
8.0.150.0000.00916.79
8.0.140.0030.00616.80
8.0.130.0000.00913.35
8.0.120.0040.00416.87
8.0.110.0040.00416.82
8.0.100.0000.00716.86
8.0.90.0060.00316.71
8.0.80.0000.01516.85
8.0.70.0000.00716.93
8.0.60.0000.00817.01
8.0.50.0000.00716.69
8.0.30.0100.00717.24
8.0.20.0180.00417.08
8.0.10.0040.00416.86
8.0.00.0060.01516.63
7.4.330.0020.00215.55
7.4.320.0000.00716.48
7.4.300.0000.00616.50
7.4.290.0000.00716.50
7.4.280.0000.00716.60
7.4.270.0040.00416.50
7.4.260.0000.00613.30
7.4.250.0030.00616.59
7.4.240.0020.00516.54
7.4.230.0030.00316.65
7.4.220.0020.00516.45
7.4.210.0080.01216.60
7.4.200.0070.00016.59
7.4.130.0140.00316.63
7.4.120.0070.01616.30
7.4.110.0080.00816.63
7.4.100.0160.00716.41
7.4.90.0030.01316.45
7.4.80.0070.01019.39
7.4.70.0160.00316.54
7.4.60.0070.01016.42
7.4.50.0000.01016.60
7.4.40.0060.00916.63
7.4.10.0070.01216.53
7.4.00.0090.00816.08
7.3.330.0000.01016.39
7.3.320.0000.00613.38
7.3.310.0000.00816.27
7.3.300.0040.00416.24
7.3.290.0000.00716.39
7.3.280.0180.00616.32
7.3.260.0130.00616.47
7.3.230.0090.00916.55
7.3.210.0030.01416.34
7.3.200.0000.01716.38
7.3.190.0030.01316.45
7.3.180.0150.00316.34
7.3.170.0080.00816.57
7.3.160.0000.01416.50
7.3.130.0140.00416.37
7.3.120.0140.01016.16
7.3.110.0070.01015.95
7.3.100.0090.00915.78
7.3.90.0080.00715.74
7.3.80.0050.01115.80
7.3.70.0060.01315.82
7.3.60.0120.00715.79
7.3.50.0100.00715.75
7.3.40.0060.01015.67
7.3.30.0110.00715.64
7.3.20.0130.01016.15
7.3.10.0070.00916.11
7.3.00.0110.00716.10
7.2.330.0130.00716.65
7.2.320.0050.02016.59
7.2.310.0000.01616.72
7.2.300.0140.00616.41
7.2.290.0040.01116.59
7.2.260.0070.01316.51
7.2.250.0080.01116.74
7.2.240.0110.00616.26
7.2.230.0080.01015.80
7.2.220.0100.00716.02
7.2.210.0110.00715.97
7.2.200.0130.00716.00
7.2.190.0080.01015.97
7.2.180.0070.00915.89
7.2.170.0080.00915.91
7.2.160.0110.00715.87
7.2.150.0090.01116.40
7.2.140.0110.00816.41
7.2.130.0070.01216.44
7.2.120.0080.01016.29
7.2.110.0100.00916.23
7.2.100.0090.00916.23
7.2.90.0080.01016.40
7.2.80.0100.00916.24
7.2.70.0060.01216.35
7.2.60.0100.00916.41
7.2.50.0110.00816.36
7.2.40.0100.01116.38
7.2.30.0120.01016.39
7.2.20.0130.00716.39
7.2.10.0070.01016.44
7.2.00.0090.00816.40
7.1.330.0110.01015.63
7.1.320.0060.01015.24
7.1.310.0100.00915.17
7.1.300.0110.00615.24
7.1.290.0070.00915.25
7.1.280.0110.00615.17
7.1.270.0090.01115.26
7.1.260.0150.00315.27
7.1.250.0130.00615.27
7.1.240.0140.00515.63
7.1.230.0090.01115.55
7.1.220.0090.00915.57
7.1.210.0120.01115.55
7.1.200.0100.00915.58
7.1.190.0140.00915.61
7.1.180.0120.00715.61
7.1.170.0130.00815.62
7.1.160.0110.00815.52
7.1.150.0070.01415.63
7.1.140.0090.00815.57
7.1.130.0100.00915.52
7.1.120.0110.00815.55
7.1.110.0100.01215.49
7.1.100.0120.00815.66
7.1.90.0120.00915.50
7.1.80.0100.00915.50
7.1.70.0120.00715.64
7.1.60.0080.01015.54
7.1.50.0070.01215.51
7.1.40.0120.00715.52
7.1.30.0100.00915.52
7.1.20.0090.00815.51
7.1.10.0110.01115.58
7.1.00.0100.01015.56
7.0.330.0110.01215.44
7.0.320.0140.00615.27
7.0.310.0110.00915.14
7.0.300.0150.00815.32
7.0.290.0120.00815.28
7.0.280.0170.00615.30
7.0.270.0160.00515.31
7.0.260.0130.01015.32
7.0.250.0120.01015.12
7.0.240.0150.00715.29
7.0.230.0140.01115.34
7.0.220.0160.00615.35
7.0.210.0170.01015.31
7.0.200.0150.01015.26
7.0.190.0130.00815.29
7.0.180.0140.00915.24
7.0.170.0120.00915.31
7.0.160.0130.00815.28
7.0.150.0100.01315.30
7.0.140.0100.01115.35
7.0.130.0160.00815.29
7.0.120.0130.00815.27
7.0.110.0180.00515.30
7.0.100.0090.01315.28
7.0.90.0110.01115.24
7.0.80.0110.01115.20
7.0.70.0170.00515.31
7.0.60.0130.00915.21
7.0.50.0090.01015.19
7.0.40.0100.01215.29
7.0.30.0110.01015.22
7.0.20.0100.01215.34
7.0.10.0120.01215.29
7.0.00.0170.00515.32
5.6.400.0150.00715.65
5.6.390.0140.01115.66
5.6.380.0150.00915.42
5.6.370.0160.00715.47
5.6.360.0140.01215.54
5.6.350.0100.01615.60
5.6.340.0120.01415.73
5.6.330.0170.00815.64
5.6.320.0150.01915.51
5.6.310.0150.01115.38
5.6.300.0170.00615.42
5.6.290.0140.00915.42
5.6.280.0120.01315.44
5.6.270.0150.00815.48
5.6.260.0130.01015.74
5.6.250.0090.01415.51
5.6.240.0160.01615.54
5.6.230.0100.01115.45
5.6.220.0160.00815.39
5.6.210.0090.01415.36
5.6.200.0180.00715.47
5.6.190.0150.01115.43
5.6.180.0120.01015.36
5.6.170.0110.01315.38
5.6.160.0100.01215.36
5.6.150.0110.01115.52
5.6.140.0090.01215.40
5.6.130.0110.01115.36
5.6.120.0140.00815.44
5.6.110.0130.01115.47
5.6.100.0140.00815.49
5.6.90.0140.00815.52
5.6.80.0150.01015.41
5.6.70.0140.00815.47
5.6.60.0150.00715.40
5.6.50.0130.01015.41
5.6.40.0150.00715.43
5.6.30.0140.00815.48
5.6.20.0110.01215.32
5.6.10.0170.00715.34
5.6.00.0100.01415.47
5.5.380.0140.01215.47
5.5.370.0120.01015.43
5.5.360.0140.00915.48
5.5.350.0170.00815.60
5.5.340.0120.01215.42
5.5.330.0120.01115.37
5.5.320.0140.00815.29
5.5.310.0090.01115.38
5.5.300.0100.01115.36
5.5.290.0100.01215.39
5.5.280.0130.00915.47
5.5.270.0120.01015.62
5.5.260.0160.00915.28
5.5.250.0140.01015.33
5.5.240.0160.00815.41
5.5.230.0130.01015.48
5.5.220.0060.01715.48
5.5.210.0130.00915.23
5.5.200.0130.01015.50
5.5.190.0130.00915.31
5.5.180.0140.01015.22
5.5.170.0160.00815.26
5.5.160.0140.00915.31
5.5.150.0150.01015.51
5.5.140.0100.01215.29
5.5.130.0100.01115.33
5.5.120.0140.01015.33
5.5.110.0190.00415.22
5.5.100.0130.01015.34
5.5.90.0130.01115.35
5.5.80.0150.00715.33
5.5.70.0130.01015.35
5.5.60.0120.01315.22
5.5.50.0090.01415.37
5.5.40.0150.00715.28
5.5.30.0150.00815.42
5.5.20.0120.01015.35
5.5.10.0140.01015.23
5.5.00.0140.00715.28
5.4.450.0110.00712.40
5.4.440.0120.00912.27
5.4.430.0100.00812.21
5.4.420.0080.00812.31
5.4.410.0120.00612.18
5.4.400.0090.00912.37
5.4.390.0090.00812.22
5.4.380.0100.00812.29
5.4.370.0120.00812.32
5.4.360.0060.01012.20
5.4.350.0110.00712.14
5.4.340.0080.01012.20
5.4.330.0090.00812.28
5.4.320.0100.00912.15
5.4.310.0090.00912.31
5.4.300.0150.00312.08
5.4.290.0110.00512.26
5.4.280.0110.00512.29
5.4.270.0100.00812.21
5.4.260.0110.00712.22
5.4.250.0110.00812.11
5.4.240.0110.00812.20
5.4.230.0090.01012.05
5.4.220.0110.00712.02
5.4.210.0100.00812.38
5.4.200.0100.00712.22
5.4.190.0080.01012.17
5.4.180.0080.01112.16
5.4.170.0090.00912.20
5.4.160.0120.00712.09
5.4.150.0110.00812.19
5.4.140.0140.00712.25
5.4.130.0120.00912.17
5.4.120.0120.01012.14
5.4.110.0100.00812.12
5.4.100.0170.00112.20
5.4.90.0070.01312.33
5.4.80.0150.00512.26
5.4.70.0120.00712.35
5.4.60.0150.00412.35
5.4.50.0120.00812.36
5.4.40.0130.00712.21
5.4.30.0090.01112.27
5.4.20.0120.00712.26
5.4.10.0080.01112.29
5.4.00.0090.00912.20
5.3.290.0130.00512.11
5.3.280.0100.00812.07
5.3.270.0130.00412.15
5.3.260.0080.01012.10
5.3.250.0090.00912.08
5.3.240.0120.00712.11
5.3.230.0110.00912.15
5.3.220.0080.01012.06
5.3.210.0090.00911.99
5.3.200.0160.00912.09
5.3.190.0060.01212.06
5.3.180.0110.01012.18
5.3.170.0110.00612.19
5.3.160.0100.00812.16
5.3.150.0120.00712.16
5.3.140.0140.00712.09
5.3.130.0110.00712.11
5.3.120.0120.00712.16
5.3.110.0120.00712.10
5.3.100.0090.00912.12
5.3.90.0060.01012.15
5.3.80.0100.00712.06
5.3.70.0100.00712.09
5.3.60.0090.00712.09
5.3.50.0110.00612.04
5.3.40.0090.00812.08
5.3.30.0100.00612.11
5.3.20.0100.00712.04
5.3.10.0120.00711.93
5.3.00.0170.00411.92
5.2.170.0070.00711.46
5.2.160.0040.01011.52
5.2.150.0090.00511.45
5.2.140.0090.00511.45
5.2.130.0060.00911.45
5.2.120.0080.00611.50
5.2.110.0090.00511.46
5.2.100.0100.00511.45
5.2.90.0060.00911.47
5.2.80.0080.00611.49
5.2.70.0060.00811.49
5.2.60.0080.00911.45
5.2.50.0080.00711.45
5.2.40.0050.00911.45
5.2.30.0100.00711.48
5.2.20.0060.00811.45
5.2.10.0070.00911.45
5.2.00.0100.00511.45
5.1.60.0070.00511.45
5.1.50.0060.00811.45
5.1.40.0080.00711.45
5.1.30.0090.00511.45
5.1.20.0080.00511.45
5.1.10.0050.00811.45
5.1.00.0110.00311.45
5.0.50.0050.00611.45
5.0.40.0080.00311.45
5.0.30.0060.00411.45
5.0.20.0070.00411.45
5.0.10.0080.00211.45
5.0.00.0100.00311.45
4.4.90.0060.00311.45
4.4.80.0050.00311.45
4.4.70.0020.00511.45
4.4.60.0040.00311.45
4.4.50.0050.00211.45
4.4.40.0050.00211.45
4.4.30.0040.00311.45
4.4.20.0030.00511.45
4.4.10.0030.00511.45
4.4.00.0030.00411.45
4.3.110.0010.00611.45
4.3.100.0040.00411.45
4.3.90.0040.00211.45
4.3.80.0020.00511.45
4.3.70.0040.00311.45
4.3.60.0020.00611.45
4.3.50.0030.00511.45
4.3.40.0070.00111.45
4.3.30.0060.00111.45
4.3.20.0030.00411.45
4.3.10.0040.00311.45
4.3.00.0030.00411.45

preferences:
23.32 ms | 401 KiB | 5 Q