3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ['a' => [1, 2], 'b' => [3, 4]]; $b = ['b' => [2, 3], 'c' => [4, 5]]; var_dump(array_merge_recurcive($a, $b));

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)
8.3.60.0120.00616.48
8.3.50.0130.00722.11
8.3.40.0090.00618.67
8.3.30.0140.00418.58
8.3.20.0070.00020.07
8.3.10.0040.00423.69
8.3.00.0040.00717.48
8.2.180.0150.00716.63
8.2.170.0170.00322.96
8.2.160.0070.01020.57
8.2.150.0040.00424.18
8.2.140.0070.00024.66
8.2.130.0070.00026.16
8.2.120.0110.00017.50
8.2.110.0060.00319.32
8.2.100.0110.00017.91
8.2.90.0000.00819.28
8.2.80.0000.00817.97
8.2.70.0040.00417.63
8.2.60.0040.00417.93
8.2.50.0000.00818.07
8.2.40.0000.00821.11
8.2.30.0000.00720.53
8.2.20.0060.00317.61
8.2.10.0080.00017.92
8.2.00.0030.00518.08
8.1.280.0110.00425.92
8.1.270.0000.00824.01
8.1.260.0050.00326.35
8.1.250.0080.00028.09
8.1.240.0060.00322.47
8.1.230.0090.00317.78
8.1.220.0040.00417.77
8.1.210.0000.00818.77
8.1.200.0050.00517.22
8.1.190.0000.00817.23
8.1.180.0050.00318.10
8.1.170.0030.00618.93
8.1.160.0070.00022.00
8.1.150.0070.00018.92
8.1.140.0050.00319.38
8.1.130.0050.00217.57
8.1.120.0000.00717.30
8.1.110.0000.00717.37
8.1.100.0000.00717.40
8.1.90.0040.00417.38
8.1.80.0070.00017.27
8.1.70.0000.00717.23
8.1.60.0060.00317.41
8.1.50.0040.00417.50
8.1.40.0080.00017.52
8.1.30.0040.00717.55
8.1.20.0000.00817.52
8.1.10.0000.00817.47
8.1.00.0000.01017.45
8.0.300.0000.00718.77
8.0.290.0030.00616.63
8.0.280.0030.00318.36
8.0.270.0040.00417.08
8.0.260.0000.00617.18
8.0.250.0040.00416.90
8.0.240.0070.00016.83
8.0.230.0030.00316.97
8.0.220.0030.00316.77
8.0.210.0030.00316.80
8.0.200.0030.00316.82
8.0.190.0000.00816.90
8.0.180.0030.00516.96
8.0.170.0070.00016.87
8.0.160.0000.00716.99
8.0.150.0000.00816.89
8.0.140.0030.00316.91
8.0.130.0000.00713.34
8.0.120.0000.00816.91
8.0.110.0000.00816.79
8.0.100.0000.00716.87
8.0.90.0000.00716.78
8.0.80.0070.00816.91
8.0.70.0050.00216.88
8.0.60.0040.00417.00
8.0.50.0040.00416.79
8.0.30.0090.01017.00
8.0.20.0130.00517.40
8.0.10.0040.00417.11
8.0.00.0120.00616.68
7.4.330.0050.00015.08
7.4.320.0030.00316.42
7.4.300.0060.00016.48
7.4.290.0030.00316.58
7.4.280.0030.00516.59
7.4.270.0000.00716.42
7.4.260.0060.00316.63
7.4.250.0070.00016.47
7.4.240.0050.00216.52
7.4.230.0040.00416.66
7.4.220.0060.01216.58
7.4.210.0040.01116.55
7.4.200.0070.00016.71
7.4.160.0030.01316.58
7.4.150.0060.01317.40
7.4.140.0120.01017.86
7.4.130.0050.01216.55
7.4.120.0060.01116.44
7.4.110.0130.00416.50
7.4.100.0100.01016.39
7.4.90.0100.00716.55
7.4.80.0100.00719.39
7.4.70.0090.00616.38
7.4.60.0070.01016.53
7.4.50.0040.00416.64
7.4.40.0110.00516.41
7.4.30.0070.01016.59
7.4.00.0080.00915.03
7.3.330.0050.00012.98
7.3.320.0000.00512.99
7.3.310.0000.00716.19
7.3.300.0070.00016.26
7.3.290.0000.00616.16
7.3.280.0110.00816.27
7.3.270.0070.01017.40
7.3.260.0130.00316.39
7.3.250.0080.01016.28
7.3.240.0070.01016.44
7.3.230.0060.01216.44
7.3.210.0060.01116.56
7.3.200.0120.00816.28
7.3.190.0080.00816.61
7.3.180.0120.00916.43
7.3.170.0060.01016.30
7.3.160.0110.00416.44
7.3.120.0060.01114.62
7.3.110.0070.00414.46
7.3.100.0030.01314.67
7.3.90.0090.00614.84
7.3.80.0100.00714.79
7.3.70.0060.00914.60
7.3.60.0060.00614.63
7.3.50.0000.00914.66
7.3.40.0090.00914.75
7.3.30.0030.00814.74
7.3.20.0060.00316.66
7.3.10.0060.00316.66
7.3.00.0030.00916.68
7.2.330.0030.01316.29
7.2.320.0070.01016.51
7.2.310.0140.00316.61
7.2.300.0070.01016.18
7.2.290.0100.00716.57
7.2.250.0030.01515.02
7.2.240.0100.01014.70
7.2.230.0060.00914.87
7.2.220.0060.00314.96
7.2.210.0030.01614.81
7.2.200.0000.00914.69
7.2.190.0090.00614.88
7.2.180.0000.01514.77
7.2.170.0040.01114.71
7.2.60.0040.00416.44
7.2.00.0000.01219.26
7.1.330.0100.00315.60
7.1.320.0000.01415.65
7.1.310.0030.01615.68
7.1.300.0060.00315.55
7.1.290.0070.01115.51
7.1.280.0030.00715.72
7.1.270.0040.00915.64
7.1.260.0110.00315.57
7.1.200.0060.00615.62
7.1.100.0070.00717.69
7.1.70.0000.00917.09
7.1.60.0070.01719.43
7.1.50.0070.01316.56
7.1.00.0070.07322.37
7.0.200.0430.00714.80
7.0.60.0070.03719.89
7.0.50.0070.08317.76
7.0.40.0070.08719.90
7.0.30.0200.04720.10
7.0.20.0270.07720.09
7.0.10.0170.08320.01
7.0.00.0030.07020.17
5.6.280.0030.03721.04
5.6.210.0030.08320.76
5.6.200.0100.08018.19
5.6.190.0170.07720.41
5.6.180.0230.06020.77
5.6.170.0330.04720.54
5.6.160.0130.07720.40
5.6.150.0030.08018.18
5.6.140.0100.07718.11
5.6.130.0030.08318.13
5.6.120.0070.03720.98
5.6.110.0100.08321.02
5.6.100.0100.07721.00
5.6.90.0030.08021.02
5.6.80.0070.08020.39
5.5.350.3930.03020.39
5.5.340.0070.04717.98
5.5.330.0030.08320.06
5.5.320.0230.07020.51
5.5.310.0230.04720.50
5.5.300.0100.08317.91
5.5.290.0070.05017.88
5.5.280.0070.06320.77
5.5.270.0000.04320.73
5.5.260.0100.08020.89
5.5.250.0000.06020.68
5.5.240.0000.08320.25
5.4.450.0100.05719.48
5.4.440.0370.05319.48
5.4.430.0100.05719.62
5.4.420.0130.05319.10
5.4.410.0330.06019.00
5.4.400.0030.06019.09
5.4.390.0170.04719.15
5.4.380.0370.05718.91
5.4.370.0130.06318.80
5.4.360.0000.06719.20
5.4.350.0600.05319.30
5.4.340.0670.05719.09
5.4.320.0670.05019.10
5.4.310.0270.04719.20
5.4.300.0130.05318.80
5.4.290.0100.05319.15
5.4.280.0170.05318.91
5.4.270.0070.05319.08
5.4.260.0170.05318.91
5.4.250.0330.04719.08
5.4.240.0130.05319.15
5.4.230.0170.05319.14
5.4.220.0130.05319.14
5.4.210.0070.06018.94
5.4.200.0170.05019.30
5.4.190.0070.06018.98
5.4.180.0170.05019.00
5.4.170.0130.05719.29
5.4.160.0170.06019.12
5.4.150.0270.05719.06
5.4.140.0130.05016.45
5.4.130.0070.05016.47
5.4.120.0270.05716.32
5.4.110.0130.05016.45
5.4.100.0170.06016.29
5.4.90.0300.05716.45
5.4.80.0130.04716.44
5.4.70.0100.05016.39
5.4.60.0300.06016.04
5.4.50.0170.04316.48
5.4.40.0130.05016.24
5.4.30.0200.04316.45
5.4.20.0070.05316.27
5.4.10.0430.05316.47
5.4.00.0100.04715.75

preferences:
59 ms | 401 KiB | 5 Q