3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ["a", "n", "b"]; $b = ["c", "a", "d"]; print_r(array_merge_($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)
8.3.60.0070.00716.88
8.3.50.0040.01119.76
8.3.40.0150.00018.59
8.3.30.0110.00418.68
8.3.20.0040.00418.98
8.3.10.0040.00421.77
8.3.00.0000.00819.07
8.2.180.0100.01016.50
8.2.170.0150.00022.96
8.2.160.0030.01020.47
8.2.150.0050.00324.18
8.2.140.0040.01424.66
8.2.130.0090.00020.99
8.2.120.0080.00026.35
8.2.110.0060.00319.08
8.2.100.0120.00018.09
8.2.90.0040.00418.16
8.2.80.0040.00418.05
8.2.70.0060.00317.80
8.2.60.0060.00318.16
8.2.50.0040.00418.10
8.2.40.0020.00520.59
8.2.30.0050.00319.21
8.2.20.0070.00017.92
8.2.10.0000.00817.98
8.2.00.0000.00717.72
8.1.280.0090.00625.92
8.1.270.0040.00422.14
8.1.260.0040.00428.09
8.1.250.0050.00228.09
8.1.240.0090.00022.14
8.1.230.0030.00922.75
8.1.220.0080.00017.74
8.1.210.0160.00418.77
8.1.200.0000.00917.23
8.1.190.0050.00317.13
8.1.180.0090.00018.10
8.1.170.0000.00718.84
8.1.160.0000.00718.78
8.1.150.0030.00320.30
8.1.140.0000.00819.54
8.1.130.0070.00017.68
8.1.120.0030.00317.31
8.1.110.0030.00517.34
8.1.100.0050.00317.39
8.1.90.0040.00417.27
8.1.80.0000.00817.42
8.1.70.0030.00317.33
8.1.60.0030.00617.46
8.1.50.0080.00017.50
8.1.40.0060.00317.57
8.1.30.0000.00817.56
8.1.20.0000.00817.57
8.1.10.0000.00817.48
8.1.00.0040.00417.46
8.0.300.0020.00519.70
8.0.290.0040.00416.75
8.0.280.0030.00318.37
8.0.270.0040.00417.10
8.0.260.0070.00317.22
8.0.250.0000.01016.86
8.0.240.0040.00416.81
8.0.230.0050.00316.94
8.0.220.0030.00316.86
8.0.210.0030.00316.87
8.0.200.0070.00016.91
8.0.190.0070.00316.88
8.0.180.0000.00716.90
8.0.170.0020.00516.89
8.0.160.0030.00516.97
8.0.150.0040.00416.79
8.0.140.0050.00216.87
8.0.130.0030.00313.33
8.0.120.0040.00416.83
8.0.110.0000.00716.86
8.0.100.0050.00316.71
8.0.90.0040.00416.83
8.0.80.0030.01316.84
8.0.70.0040.00416.89
8.0.60.0040.00416.85
8.0.50.0000.00716.69
8.0.30.0160.00517.09
8.0.20.0120.01217.40
8.0.10.0050.00216.84
8.0.00.0140.00316.70
7.4.330.0020.00215.55
7.4.320.0050.00216.41
7.4.300.0060.00016.59
7.4.290.0000.00716.52
7.4.280.0040.00716.58
7.4.270.0040.00416.51
7.4.260.0070.00016.50
7.4.250.0040.00416.60
7.4.240.0030.00316.61
7.4.230.0030.00316.48
7.4.220.0100.01616.63
7.4.210.0100.00716.61
7.4.200.0030.00316.39
7.4.160.0040.01216.65
7.4.150.0080.00817.40
7.4.140.0070.01117.86
7.4.130.0100.00916.54
7.4.120.0090.00816.52
7.4.110.0130.00416.54
7.4.100.0030.01416.47
7.4.90.0100.00716.58
7.4.80.0100.00719.39
7.4.70.0120.00616.34
7.4.60.0030.01316.53
7.4.50.0060.00916.48
7.4.40.0070.01016.43
7.4.30.0110.00616.52
7.4.00.0050.01114.87
7.3.330.0020.00213.13
7.3.320.0000.00513.01
7.3.310.0030.00316.34
7.3.300.0000.00716.16
7.3.290.0030.00316.15
7.3.280.0110.00616.23
7.3.270.0000.01717.40
7.3.260.0120.00516.44
7.3.250.0070.01016.25
7.3.240.0080.01116.43
7.3.230.0090.00916.39
7.3.210.0110.00616.27
7.3.200.0160.00416.20
7.3.190.0100.01116.43
7.3.180.0060.00916.51
7.3.170.0090.00616.38
7.3.160.0170.00016.32
7.3.120.0090.00814.86
7.3.110.0100.00514.77
7.3.100.0070.00514.94
7.3.90.0050.00614.73
7.3.80.0090.00614.66
7.3.70.0040.01314.70
7.3.60.0090.00114.78
7.3.50.0070.00614.82
7.3.40.0050.01014.76
7.3.30.0080.00314.84
7.3.20.0030.00916.55
7.3.10.0070.00616.35
7.3.00.0070.00516.51
7.2.330.0080.01016.56
7.2.320.0150.00916.19
7.2.310.0040.01316.63
7.2.300.0130.00716.61
7.2.290.0130.00616.59
7.2.250.0120.00314.83
7.2.240.0080.00514.95
7.2.230.0050.00814.76
7.2.220.0050.00714.67
7.2.210.0050.00714.70
7.2.200.0090.00614.90
7.2.190.0070.00914.88
7.2.180.0040.01014.84
7.2.170.0060.00814.85
7.2.160.0060.01114.77
7.2.150.0000.01816.70
7.2.140.0030.01316.56
7.2.130.0120.00616.84
7.2.120.0110.00716.64
7.2.110.0550.00516.42
7.2.100.0030.01416.55
7.2.90.0030.01416.61
7.2.80.0060.00616.88
7.2.70.0130.00316.50
7.2.60.0020.01516.67
7.2.50.0110.00416.93
7.2.40.0070.01016.89
7.2.30.0040.01516.84
7.2.20.0030.01516.56
7.2.10.0060.01116.84
7.2.00.0100.00518.00
7.1.330.0050.00615.53
7.1.320.0050.00715.62
7.1.310.0050.00815.56
7.1.300.0040.00715.50
7.1.290.0100.00315.60
7.1.280.0030.00715.53
7.1.270.0030.00815.57
7.1.260.0050.01015.63
7.1.250.0060.00915.65
7.1.200.0040.00715.50
7.1.100.0680.00816.01
7.1.70.0000.00716.72
7.1.60.0030.00717.27
7.1.50.0040.00816.63
7.1.00.0000.08022.33
7.0.200.0100.00314.77
7.0.130.0030.05721.98
7.0.120.0130.05022.13
7.0.110.0170.06722.02
7.0.100.0130.05022.12
7.0.90.0170.05021.98
7.0.80.0070.05722.14
7.0.70.0200.04722.11
7.0.60.0100.05022.15
7.0.50.0100.05021.99
7.0.40.0100.05322.20
7.0.30.0100.05722.03
7.0.20.0000.06022.07
7.0.10.0100.05022.05
7.0.00.0070.05722.03
5.6.280.0030.05721.13
5.6.270.0000.06320.86
5.6.260.0100.06020.96
5.6.250.0070.06020.88
5.6.240.0100.05721.07
5.6.230.0130.06021.05
5.6.220.0170.06021.08
5.6.210.0000.06020.98
5.6.200.0100.05320.75
5.6.190.0130.05720.85
5.6.180.0070.06021.04
5.6.170.0100.05020.86
5.6.160.0030.06021.08
5.6.150.0100.05320.93
5.6.140.0070.05720.82
5.6.130.0100.05020.84
5.6.120.0000.06320.74
5.6.110.0030.06320.99
5.6.100.0070.06321.00
5.6.90.0130.05720.92
5.6.80.0130.05020.32
5.6.70.0100.05320.36
5.6.60.0030.06320.38
5.6.50.0100.06720.41
5.6.40.0130.05720.39
5.6.30.0070.07720.20
5.6.20.0170.11020.35
5.6.10.0070.05720.10
5.6.00.0200.04720.13

preferences:
61.84 ms | 401 KiB | 5 Q