3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('a' => 'B',2,3); $b = array('a' => array('A')); var_dump(array_merge($a, $b)); var_dump(array_merge_recursive($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)
8.3.60.0110.00418.19
8.3.50.0230.00321.88
8.3.40.0140.00018.59
8.3.30.0030.01218.95
8.3.20.0040.00420.39
8.3.10.0040.00423.65
8.3.00.0040.00419.25
8.2.180.0120.00618.54
8.2.170.0100.01022.96
8.2.160.0140.00620.35
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0070.01026.16
8.2.120.0080.00022.06
8.2.110.0060.00322.25
8.2.100.0070.00417.62
8.2.90.0050.00319.09
8.2.80.0040.00417.97
8.2.70.0050.00317.38
8.2.60.0080.00017.80
8.2.50.0080.00018.07
8.2.40.0030.00618.16
8.2.30.0060.00317.98
8.2.20.0040.00417.64
8.2.10.0050.00317.93
8.2.00.0030.00517.52
8.1.280.0120.00625.92
8.1.270.0120.00323.96
8.1.260.0070.00026.35
8.1.250.0050.00228.09
8.1.240.0000.00823.82
8.1.230.0070.00419.01
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0000.00817.35
8.1.190.0040.00417.41
8.1.180.0040.00418.10
8.1.170.0110.00318.34
8.1.160.0080.00021.82
8.1.150.0000.00718.57
8.1.140.0040.00417.37
8.1.130.0000.00717.83
8.1.120.0000.00717.29
8.1.110.0040.00417.29
8.1.100.0040.00417.29
8.1.90.0020.00517.45
8.1.80.0000.00717.24
8.1.70.0040.00417.33
8.1.60.0030.00517.40
8.1.50.0040.00417.36
8.1.40.0030.00517.47
8.1.30.0000.00917.40
8.1.20.0000.00717.59
8.1.10.0000.00717.36
8.1.00.0030.00517.45
8.0.300.0000.00718.77
8.0.290.0040.00417.15
8.0.280.0040.00418.45
8.0.270.0000.00717.09
8.0.260.0030.00316.66
8.0.250.0070.00016.80
8.0.240.0090.00016.85
8.0.230.0000.00716.86
8.0.220.0030.00316.78
8.0.210.0030.00316.83
8.0.200.0030.00316.91
8.0.190.0000.00716.85
8.0.180.0050.00316.82
8.0.170.0060.00316.73
8.0.160.0050.00316.69
8.0.150.0040.00416.74
8.0.140.0020.00516.73
8.0.130.0000.00513.26
8.0.120.0040.00416.82
8.0.110.0000.00816.83
8.0.100.0070.00016.82
8.0.90.0000.00716.71
8.0.80.0140.00716.81
8.0.70.0030.00616.86
8.0.60.0040.00416.76
8.0.50.0040.00416.69
8.0.30.0100.00917.08
8.0.20.0100.00817.40
8.0.10.0000.00716.78
8.0.00.0100.01216.71
7.4.330.0000.00515.04
7.4.320.0000.00616.45
7.4.300.0070.00016.45
7.4.290.0070.00016.43
7.4.280.0030.00316.43
7.4.270.0000.00716.46
7.4.260.0000.00716.49
7.4.250.0070.00016.40
7.4.240.0020.00516.53
7.4.230.0000.00716.59
7.4.220.0120.01316.61
7.4.210.0080.00816.45
7.4.200.0070.00016.62
7.4.190.0040.00416.35
7.4.160.0140.00316.46
7.4.150.0120.00617.40
7.4.140.0090.01017.86
7.4.130.0090.00816.40
7.4.120.0080.00916.42
7.4.110.0100.01316.45
7.4.100.0040.01516.43
7.4.90.0070.01016.34
7.4.80.0070.01119.39
7.4.70.0060.01116.39
7.4.60.0080.00816.38
7.4.50.0050.00316.39
7.4.40.0070.01122.77
7.4.30.0100.00516.19
7.4.00.0100.00314.69
7.3.330.0000.00613.12
7.3.320.0030.00313.03
7.3.310.0030.00316.18
7.3.300.0030.00316.05
7.3.290.0070.00716.11
7.3.280.0070.00816.18
7.3.270.0170.00017.40
7.3.260.0070.01016.03
7.3.250.0120.01016.16
7.3.240.0170.00016.09
7.3.230.0030.01316.39
7.3.210.0060.01216.21
7.3.200.0070.01019.39
7.3.190.0140.00716.38
7.3.180.0180.00016.38
7.3.170.0100.00716.46
7.3.160.0130.00316.15
7.3.120.0040.01114.32
7.2.330.0130.00316.08
7.2.320.0060.01616.28
7.2.310.0090.00916.34
7.2.300.0060.01216.32
7.2.290.0090.00916.65
7.2.00.0070.00719.01
7.1.100.0070.00718.23
7.1.70.0000.00917.06
7.1.60.0100.01019.33
7.1.50.0060.00616.94
7.1.00.0070.07022.54
7.0.200.0000.00716.59
7.0.140.0000.08022.16
7.0.100.0070.06019.93
7.0.90.0430.04719.99
7.0.80.0070.09019.88
7.0.70.0170.07019.98
7.0.60.0100.06720.05
7.0.50.0430.08320.33
7.0.40.0200.06720.14
7.0.30.0130.07320.09
7.0.20.0000.05720.13
7.0.10.0130.07720.14
7.0.00.0130.08320.11
5.6.280.0030.07321.01
5.6.250.0030.08720.58
5.6.240.0070.07020.74
5.6.230.0070.05720.53
5.6.220.0130.07020.72
5.6.210.0200.06020.57
5.6.200.0200.07021.00
5.6.190.0130.06721.08
5.6.180.0070.08021.04
5.6.170.0230.06721.05
5.6.160.0100.08321.08
5.6.150.0100.08321.11
5.6.140.0070.07321.03
5.6.130.0100.08021.10
5.6.120.0000.08720.95
5.6.110.0170.07321.07
5.6.100.0030.08721.02
5.6.90.0170.07320.91
5.6.80.0100.07720.55
5.6.70.0230.06020.33
5.6.60.0030.09020.38
5.6.50.0100.07720.46
5.6.40.0100.07720.52
5.6.30.0100.07320.29
5.6.20.0030.07320.46
5.6.10.0130.07020.30
5.6.00.0170.03320.36
5.5.380.0070.08320.36
5.5.370.0130.07720.40
5.5.360.0000.07720.43
5.5.350.0130.08320.36
5.5.340.0070.09020.79
5.5.330.0030.08320.72
5.5.320.0070.07720.92
5.5.310.0100.08020.91
5.5.300.0100.08320.91
5.5.290.0130.08020.78
5.5.280.0030.08320.88
5.5.270.0100.08320.84
5.5.260.0030.08720.84
5.5.250.0100.08020.44
5.5.240.0100.07720.24
5.5.230.0070.07320.15
5.5.220.0070.07720.13
5.5.210.0030.07720.24
5.5.200.0100.07020.25
5.5.190.0100.07720.24
5.5.180.0030.07720.11
5.5.160.0070.05720.12
5.5.150.0070.03720.24
5.5.140.0100.04020.14
5.5.130.0000.05020.17
5.5.120.0030.04720.18
5.5.110.0100.03320.26
5.5.100.0030.03720.16
5.5.90.0070.03720.03
5.5.80.0030.04020.12
5.5.70.0000.04320.14
5.5.60.0070.03720.05
5.5.50.0030.03720.09
5.5.40.0000.04020.14
5.5.30.0130.03020.02
5.5.20.0100.06020.02
5.5.10.0030.04020.04
5.5.00.0070.03720.04
5.4.450.0070.07019.37
5.4.440.0170.04019.45
5.4.430.0070.08019.55
5.4.420.0130.07019.39
5.4.410.0130.06719.24
5.4.400.0070.07019.05
5.4.390.0130.06318.82
5.4.380.0100.07319.14
5.4.370.0130.06019.14
5.4.360.0170.06719.14
5.4.350.0070.07718.88
5.4.340.0100.07318.97
5.4.320.0070.04019.12
5.4.310.0000.06018.92
5.4.300.0000.04019.14
5.4.290.0000.04718.89
5.4.280.0030.04018.98
5.4.270.0030.04018.99
5.4.260.0070.03319.02
5.4.250.0000.04319.12
5.4.240.0000.04019.06
5.4.230.0070.03318.97
5.4.220.0000.04319.11
5.4.210.0030.03718.98
5.4.200.0000.03719.04
5.4.190.0000.03718.82
5.4.180.0130.03019.05
5.4.170.0100.03318.97
5.4.160.0070.03319.18
5.4.150.0030.03019.01
5.4.140.0100.03016.25
5.4.130.0070.05016.22
5.4.120.0000.05016.31
5.4.110.0100.03316.41
5.4.100.0070.03316.21
5.4.90.0070.03316.34
5.4.80.0030.03316.39
5.4.70.0030.03316.39
5.4.60.0030.03716.40
5.4.50.0100.02716.39
5.4.40.0000.06016.37
5.4.30.0030.04716.22
5.4.20.0070.03316.37
5.4.10.0000.04016.31
5.4.00.0030.03315.72
5.3.290.0030.04714.53
5.3.280.0000.04714.45
5.3.270.0030.03714.55
5.3.260.0000.04014.52
5.3.250.0030.04014.59
5.3.240.0000.03714.60
5.3.230.0000.03314.57
5.3.220.0030.03314.58
5.3.210.0070.03314.41
5.3.200.0000.04014.39
5.3.190.0070.03314.54
5.3.180.0070.03714.55
5.3.170.0070.03314.42
5.3.160.0030.04014.39
5.3.150.0070.03314.55
5.3.140.0070.03014.55
5.3.130.0000.04714.46
5.3.120.0070.03014.37
5.3.110.0000.04714.55
5.3.100.0000.03714.03
5.3.90.0030.05313.98
5.3.80.0000.04013.97
5.3.70.0070.03313.88
5.3.60.0070.03013.79
5.3.50.0000.04313.92
5.3.40.0100.06713.93
5.3.30.0100.06713.88
5.3.20.0070.05713.54
5.3.10.0000.08013.47
5.3.00.0030.07313.59
5.2.170.0000.05011.19
5.2.160.0070.04311.13
5.2.150.0000.06311.16
5.2.140.0070.05311.10
5.2.130.0070.05710.92
5.2.120.0030.06311.10
5.2.110.0100.05311.11
5.2.100.0070.06311.02
5.2.90.0030.04711.15
5.2.80.0030.06310.96
5.2.70.0100.05011.04
5.2.60.0070.05311.05
5.2.50.0070.06010.81
5.2.40.0100.05710.98
5.2.30.0070.06010.98
5.2.20.0070.06010.95
5.2.10.0030.05710.89
5.2.00.0000.04710.74
5.1.60.0070.04310.04
5.1.50.0100.0539.82
5.1.40.0030.0479.80
5.1.30.0070.05310.40
5.1.20.0030.05710.41
5.1.10.0070.04710.06
5.1.00.0030.0539.94
5.0.50.0070.0438.71
5.0.40.0000.0478.71
5.0.30.0030.0638.71
5.0.20.0030.0408.71
5.0.10.0070.0378.71
5.0.00.0070.0608.71
4.4.90.0030.0378.71
4.4.80.0070.0338.71
4.4.70.0000.0378.71
4.4.60.0030.0378.71
4.4.50.0030.0338.71
4.4.40.0000.0578.71
4.4.30.0070.0278.71
4.4.20.0030.0338.71
4.4.10.0030.0338.71
4.4.00.0000.0578.71
4.3.110.0030.0138.71
4.3.100.0070.0308.71
4.3.90.0000.0378.71
4.3.80.0030.0538.71
4.3.70.0030.0338.71
4.3.60.0070.0308.71
4.3.50.0000.0378.71
4.3.40.0070.0378.71
4.3.30.0000.0408.71
4.3.20.0000.0278.71
4.3.10.0000.0378.71
4.3.00.0030.0308.71

preferences:
38.07 ms | 400 KiB | 5 Q