3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array1 = [ [ 'id' => 12345 ], [ 'date_entered' => 'today' ] ]; $array2 = [ ['id' => NULL], [ 'date entered' => 'yesterday' ] ]; $result = array(); foreach($array1 as $key => $value){ $result = array_merge_recursive($array1[0],$array2[0]); } print_r($result); ?>

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)
8.3.60.0100.01016.63
8.3.50.0120.00721.88
8.3.40.0060.00918.80
8.3.30.0140.00419.09
8.3.20.0040.00420.22
8.3.10.0060.00321.91
8.3.00.0050.00319.13
8.2.180.0150.00618.45
8.2.170.0060.00822.96
8.2.160.0170.00022.22
8.2.150.0040.00424.18
8.2.140.0030.00624.66
8.2.130.0040.00426.16
8.2.120.0060.00319.66
8.2.110.0060.00319.27
8.2.100.0100.00317.63
8.2.90.0040.00419.36
8.2.80.0040.00417.97
8.2.70.0040.00417.59
8.2.60.0060.00318.03
8.2.50.0000.00818.07
8.2.40.0000.00819.64
8.2.30.0000.00818.01
8.2.20.0030.00517.68
8.2.10.0030.00518.23
8.2.00.0040.00417.79
8.1.280.0040.01125.92
8.1.270.0060.00318.72
8.1.260.0040.00426.35
8.1.250.0070.00328.09
8.1.240.0040.00423.92
8.1.230.0040.00717.48
8.1.220.0040.00417.79
8.1.210.0030.00618.77
8.1.200.0030.00617.22
8.1.190.0030.00617.22
8.1.180.0060.00318.10
8.1.170.0000.00920.25
8.1.160.0040.00421.93
8.1.150.0000.00718.89
8.1.140.0070.00017.37
8.1.130.0050.00217.87
8.1.120.0030.00317.44
8.1.110.0050.00317.47
8.1.100.0040.00417.46
8.1.90.0000.00717.34
8.1.80.0000.00717.50
8.1.70.0040.00417.41
8.1.60.0000.00917.49
8.1.50.0000.00917.50
8.1.40.0040.00417.50
8.1.30.0040.00417.50
8.1.20.0040.00417.71
8.1.10.0030.00517.41
8.1.00.0100.00017.46
8.0.300.0070.00018.77
8.0.290.0070.00016.63
8.0.280.0070.00018.49
8.0.270.0030.00317.22
8.0.260.0060.00017.25
8.0.250.0000.00616.96
8.0.240.0000.00716.87
8.0.230.0000.00816.89
8.0.220.0000.00716.76
8.0.210.0030.00316.79
8.0.200.0000.00716.95
8.0.190.0000.00816.86
8.0.180.0000.00816.93
8.0.170.0070.00016.93
8.0.160.0070.00016.77
8.0.150.0030.00316.73
8.0.140.0040.00416.84
8.0.130.0060.00013.36
8.0.120.0030.00516.82
8.0.110.0070.00016.79
8.0.100.0000.00816.93
8.0.90.0000.00817.01
8.0.80.0060.01316.82
8.0.70.0000.00716.69
8.0.60.0000.00816.91
8.0.50.0000.00816.75
8.0.30.0080.01416.97
8.0.20.0110.01117.40
8.0.10.0000.00716.97
8.0.00.0110.00816.79
7.4.330.0060.00015.15
7.4.320.0000.00716.52
7.4.300.0070.00416.53
7.4.290.0070.00016.52
7.4.280.0030.00316.52
7.4.270.0030.00316.57
7.4.260.0100.00016.54
7.4.250.0050.00316.44
7.4.240.0020.00516.46
7.4.230.0000.00716.70
7.4.220.0050.01416.66
7.4.210.0070.00716.62
7.4.200.0070.00016.61
7.4.160.0090.00616.72
7.4.150.0090.00917.40
7.4.140.0080.00817.86
7.4.130.0070.01316.55
7.4.120.0090.00916.35
7.4.110.0160.00616.54
7.4.100.0090.00916.39
7.4.90.0000.01616.39
7.4.80.0030.01519.39
7.4.70.0070.01016.39
7.4.60.0130.00316.66
7.4.50.0050.00316.56
7.4.40.0070.01016.48
7.4.30.0150.00816.51
7.4.00.0090.00614.97
7.3.330.0050.00013.01
7.3.320.0100.00313.22
7.3.310.0040.00416.23
7.3.300.0000.00616.30
7.3.290.0000.00716.30
7.3.280.0090.00916.24
7.3.270.0000.01917.40
7.3.260.0150.00316.70
7.3.250.0080.01116.33
7.3.240.0150.00316.45
7.3.230.0060.01116.63
7.3.210.0070.01016.32
7.3.200.0060.00919.39
7.3.190.0100.00716.29
7.3.180.0130.00316.42
7.3.170.0130.00916.44
7.3.160.0060.00916.43
7.2.330.0070.01016.44
7.2.320.0060.01216.70
7.2.310.0040.01316.70
7.2.300.0100.01316.56
7.2.290.0090.00916.49
7.2.00.0000.01119.17
7.1.100.0000.00818.25
7.1.70.0030.00616.93
7.1.60.0100.01419.46
7.1.50.0110.01834.83
7.1.00.0000.08022.39
7.0.200.0040.00416.69
7.0.140.0000.06322.07
7.0.70.4870.04020.13
7.0.60.0000.08719.84
7.0.50.0100.08017.83
7.0.40.0070.08720.08
7.0.30.0200.08320.28
7.0.20.0200.03720.32
7.0.10.0370.07020.22
7.0.00.0130.07020.18
5.6.280.0070.07021.12
5.6.210.0100.07720.55
5.6.200.0070.08018.16
5.6.190.0070.09020.57
5.6.180.0300.06720.53
5.6.170.0100.04720.62
5.6.160.0130.04020.55
5.6.150.0100.07718.16
5.6.140.0130.07718.19
5.6.130.0100.08318.14
5.6.120.0070.08721.00
5.6.110.0100.06320.93
5.6.100.0070.06320.88
5.6.90.0070.08320.99
5.6.80.0070.04720.36
5.6.70.0330.05720.36
5.5.350.0100.08320.46
5.5.340.0270.06317.98
5.5.330.0100.08320.56
5.5.320.0030.07720.42
5.5.310.0170.05320.37
5.5.300.0000.04717.94
5.5.290.0130.07717.95
5.5.280.0130.07020.87
5.5.270.0170.06320.94
5.5.260.0030.06720.64
5.5.250.0030.04720.77
5.5.240.0000.04020.07
5.4.450.0200.05019.59
5.4.440.0800.06719.55
5.4.430.0930.06019.48
5.4.420.0100.05719.69
5.4.410.0170.05019.50
5.4.400.0200.05018.84
5.4.390.0130.05718.76
5.4.380.0230.05318.72
5.4.370.0130.07018.46
5.4.360.0170.05018.40
5.4.350.0070.06318.46
5.4.340.0230.04318.78
5.4.320.0200.05318.78
5.4.310.0130.05318.61
5.4.300.0230.05018.43
5.4.290.0130.06018.80
5.4.280.0330.05718.77
5.4.270.0130.07018.54
5.4.260.0230.05018.79
5.4.250.0170.05718.83
5.4.240.0130.05318.86
5.4.230.0130.05318.75
5.4.220.0200.07318.55
5.4.210.0330.06018.30
5.4.200.0100.05316.57
5.4.190.0070.06018.66
5.4.180.0270.04018.79
5.4.170.0100.06018.82
5.4.160.0070.06018.56
5.4.150.0200.04718.44
5.4.140.0130.05016.28
5.4.130.0130.05316.25
5.4.120.0130.05316.51
5.4.110.0230.03716.25
5.4.100.0300.04016.21
5.4.90.0070.06016.43
5.4.80.0200.04716.25
5.4.70.0100.05716.30
5.4.60.0130.05716.38
5.4.50.0030.06316.11
5.4.40.0170.04716.30
5.4.30.0130.05716.17
5.4.20.0200.05716.16
5.4.10.0170.04716.17
5.4.00.0130.05015.74
5.3.290.0130.05314.64
5.3.280.0200.05014.64
5.3.270.0100.06014.54
5.3.260.0300.06014.57
5.3.250.0130.05314.64
5.3.240.0070.06314.68
5.3.230.0130.05714.61
5.3.220.0170.05014.50
5.3.210.0070.06314.48
5.3.200.0230.04314.55
5.3.190.0170.05014.48
5.3.180.0200.04314.54
5.3.170.0230.04314.46
5.3.160.0170.05014.66
5.3.150.0130.05014.60
5.3.140.0270.04014.59
5.3.130.0100.05714.65
5.3.120.0130.05314.64
5.3.110.0170.05314.48
5.3.100.0170.05014.04
5.3.90.0170.04714.06
5.3.80.0100.05314.00
5.3.70.0300.03713.96
5.3.60.0300.04013.99
5.3.50.0070.05713.88
5.3.40.0170.04713.92
5.3.30.0200.04713.82
5.3.20.0130.06713.67
5.3.10.0200.06313.66
5.3.00.0230.06713.73
5.2.170.0170.05311.11
5.2.160.0100.05711.18
5.2.150.0070.05711.11
5.2.140.0100.04011.09
5.2.130.0200.03011.08
5.2.120.0100.04011.25
5.2.110.0170.03311.01
5.2.100.0170.03711.14
5.2.90.0170.04011.02
5.2.80.0070.04711.13
5.2.70.0100.04311.02
5.2.60.0100.04311.11
5.2.50.0070.04710.93
5.2.40.0130.03710.99
5.2.30.0030.04710.89
5.2.20.0100.04010.96
5.2.10.0130.04010.82
5.2.00.0100.04310.73
5.1.60.0070.03710.00
5.1.50.0200.04010.03
5.1.40.0130.0309.95
5.1.30.0100.04710.31
5.1.20.0070.04310.38
5.1.10.0100.04710.20
5.1.00.0100.04010.14
5.0.50.0100.0278.62
5.0.40.0070.0308.54
5.0.30.0100.0408.32
5.0.20.0130.0278.23
5.0.10.0100.0378.34
5.0.00.0000.0478.14
4.4.90.0070.0205.88
4.4.80.0070.0235.91
4.4.70.0030.0275.88
4.4.60.0070.0205.86
4.4.50.0100.0175.90
4.4.40.0000.0405.88
4.4.30.0070.0205.89
4.4.20.0070.0205.95
4.4.10.0030.0235.99
4.4.00.0070.0335.85
4.3.110.0030.0235.75
4.3.100.0100.0135.80
4.3.90.0100.0235.81
4.3.80.0000.0375.77
4.3.70.0000.0235.82
4.3.60.0070.0175.81
4.3.50.0030.0275.79
4.3.40.0070.0335.86
4.3.30.0000.0234.59
4.3.20.0030.0204.59
4.3.10.0030.0204.53
4.3.00.0030.0237.02

preferences:
48.6 ms | 401 KiB | 5 Q