3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [[14], [], [12,14]]; $res = call_user_func_array('array_merge', $arr); print_r(array_unique($res));

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)
8.4.20.0150.00320.43
8.4.10.0110.00719.55
8.3.150.0060.01217.25
8.3.140.0130.00716.46
8.3.130.0090.00018.45
8.3.120.0060.00318.86
8.3.110.0000.00820.94
8.3.100.0030.00624.06
8.3.90.0110.00826.77
8.3.80.0030.00618.43
8.3.70.0130.00616.58
8.3.60.0040.01518.43
8.3.50.0150.00517.39
8.3.40.0120.00318.79
8.3.30.0120.00318.49
8.3.20.0050.00220.48
8.3.10.0040.00419.08
8.3.00.0050.00321.86
8.2.270.0000.00916.72
8.2.260.0050.00218.71
8.2.250.0050.00316.67
8.2.240.0040.00417.04
8.2.230.0060.00322.58
8.2.220.0090.00637.54
8.2.210.0060.00926.77
8.2.200.0090.00016.38
8.2.190.0110.00716.63
8.2.180.0040.01125.92
8.2.170.0040.01118.79
8.2.160.0140.00320.47
8.2.150.0060.00324.18
8.2.140.0110.00024.66
8.2.130.0070.00026.16
8.2.120.0070.00026.16
8.2.110.0070.00322.21
8.2.100.0000.01117.72
8.2.90.0000.00922.16
8.2.80.0050.00317.97
8.2.70.0050.00317.93
8.2.60.0060.00318.03
8.2.50.0000.00819.18
8.2.40.0000.00818.98
8.2.30.0000.00719.05
8.2.20.0000.00717.99
8.2.10.0000.00718.96
8.2.00.0000.00819.47
8.1.310.0050.00316.84
8.1.300.0060.00320.12
8.1.290.0050.00530.84
8.1.280.0030.01025.92
8.1.270.0040.00420.75
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0000.00822.81
8.1.230.0040.00820.93
8.1.220.0030.00617.74
8.1.210.0050.00318.82
8.1.200.0030.00617.23
8.1.190.0000.00817.23
8.1.180.0000.00818.10
8.1.170.0060.00318.21
8.1.160.0070.00018.86
8.1.150.0000.00718.86
8.1.140.0030.00320.30
8.1.130.0070.00020.01
8.1.120.0050.00317.39
8.1.110.0070.00017.44
8.1.100.0040.00417.42
8.1.90.0000.00717.28
8.1.80.0000.00817.41
8.1.70.0030.00317.38
8.1.60.0000.00817.40
8.1.50.0000.01017.38
8.1.40.0040.00417.46
8.1.30.0040.00417.45
8.1.20.0000.00817.59
8.1.10.0000.00717.30
8.1.00.0050.00317.27
8.0.300.0060.00319.86
8.0.290.0080.00016.58
8.0.280.0000.00718.37
8.0.270.0040.00417.12
8.0.260.0030.00318.35
8.0.250.0030.00316.91
8.0.240.0060.00016.88
8.0.230.0040.00416.92
8.0.220.0030.00316.71
8.0.210.0030.00316.71
8.0.200.0000.00616.77
8.0.190.0000.00716.75
8.0.180.0040.00416.75
8.0.170.0000.00916.86
8.0.160.0050.00516.90
8.0.150.0030.00716.75
8.0.140.0000.00716.71
8.0.130.0070.00013.26
8.0.120.0050.00216.79
8.0.110.0060.00316.71
8.0.100.0030.00316.69
8.0.90.0000.00716.60
8.0.80.0150.00616.82
8.0.70.0000.00716.93
8.0.60.0000.00816.88
8.0.50.0040.00416.67
8.0.30.0120.00616.96
8.0.20.0070.01417.23
8.0.10.0070.00016.95
8.0.00.0120.00716.75
7.4.330.0050.00015.55
7.4.320.0000.00616.38
7.4.300.0040.00416.33
7.4.290.0060.00016.47
7.4.280.0060.00316.53
7.4.270.0050.00516.35
7.4.260.0040.00416.51
7.4.250.0050.00216.39
7.4.240.0050.00516.45
7.4.230.0000.00716.53
7.4.220.0040.00416.59
7.4.210.0060.01016.48
7.4.200.0050.00216.33
7.4.160.0120.00616.33
7.4.130.0160.00016.35
7.4.120.0100.00616.31
7.4.110.0060.00916.60
7.4.100.0100.01316.50
7.4.90.0130.00316.40
7.4.80.0030.01319.39
7.4.70.0090.00616.24
7.4.60.0100.00716.48
7.4.50.0030.01016.21
7.4.40.0100.01016.46
7.4.10.0090.00914.65
7.4.00.0040.01414.76
7.3.330.0000.00512.89
7.3.320.0000.00513.03
7.3.310.0070.00016.10
7.3.300.0040.00416.04
7.3.290.0030.00315.97
7.3.280.0110.00716.13
7.3.260.0100.00816.39
7.3.240.0090.00816.23
7.3.230.0060.01216.43
7.3.210.0050.01416.45
7.3.200.0070.01116.11
7.3.190.0090.00616.50
7.3.180.0060.00916.13
7.3.170.0060.01116.34
7.3.160.0170.00016.43
7.3.130.0060.00914.67
7.3.120.0030.01414.26
7.3.110.0090.00614.87
7.3.100.0110.00414.49
7.3.90.0080.00414.67
7.3.80.0030.00914.86
7.3.70.0060.00314.77
7.3.60.0070.00714.67
7.3.50.0050.00814.53
7.3.40.0060.01014.54
7.3.30.0060.00614.57
7.3.20.0040.01616.32
7.3.10.0060.00916.55
7.3.00.0070.01016.45
7.2.330.0130.00316.54
7.2.320.0000.01616.40
7.2.310.0030.01316.34
7.2.300.0080.00816.55
7.2.290.0100.00616.56
7.2.260.0070.01115.17
7.2.250.0000.01214.93
7.2.240.0090.00615.11
7.2.230.0000.01514.83
7.2.220.0060.00615.11
7.2.210.0060.01214.82
7.2.200.0060.00915.05
7.2.190.0030.01314.77
7.2.180.0080.01014.94
7.2.170.0100.00514.86
7.2.160.0110.00714.69
7.2.150.0100.00816.81
7.2.140.0060.00816.76
7.2.130.0060.00816.87
7.2.120.0070.00516.57
7.2.110.0060.00516.75
7.2.100.0050.00716.63
7.2.90.0100.00616.69
7.2.80.0090.00216.77
7.2.70.0090.00716.55
7.2.60.0050.00916.61
7.2.50.0070.01116.65
7.2.40.0110.00516.75
7.2.30.0010.01116.79
7.2.20.0020.01016.48
7.2.10.0090.00516.68
7.2.00.0020.01416.68
7.1.330.0080.00415.64
7.1.320.0120.00015.47
7.1.310.0000.01115.88
7.1.300.0000.00915.64
7.1.290.0040.01115.73
7.1.280.0020.00815.77
7.1.270.0090.00615.70
7.1.260.0130.00615.74
7.1.250.0060.00615.57
7.1.240.0030.01015.84
7.1.230.0030.01015.62
7.1.220.0030.00915.79
7.1.210.0030.01015.76
7.1.200.0060.00315.73
7.1.190.0100.00715.76
7.1.180.0040.00715.83
7.1.170.0000.01815.80
7.1.160.0040.00815.73
7.1.150.0000.01215.79
7.1.140.0030.01015.75
7.1.130.0030.00615.89
7.1.120.0170.00015.38
7.1.110.0030.01015.86
7.1.100.0100.00715.41
7.1.90.0000.00815.92
7.1.80.0100.00315.71
7.1.70.0090.00015.83
7.1.60.0030.01015.81
7.1.50.0030.00915.78
7.1.40.0040.00815.86
7.1.30.0000.01115.83
7.1.20.0070.00715.82
7.1.10.0000.01415.80
7.1.00.0030.01315.64

preferences:
29.49 ms | 403 KiB | 5 Q