3v4l.org

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

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)
8.3.60.0160.00616.63
8.3.50.0000.01516.13
8.3.40.0140.00718.57
8.3.30.0070.00718.42
8.3.20.0000.00820.22
8.3.10.0070.00321.87
8.3.00.0080.00022.10
8.2.180.0100.01016.32
8.2.170.0070.01022.96
8.2.160.0030.01718.91
8.2.150.0060.00324.18
8.2.140.0030.00524.66
8.2.130.0040.00421.04
8.2.120.0030.01226.35
8.2.110.0030.00619.27
8.2.100.0080.00418.03
8.2.90.0050.00319.09
8.2.80.0050.00317.97
8.2.70.0070.00317.63
8.2.60.0000.00817.91
8.2.50.0040.00418.10
8.2.40.0030.00522.33
8.2.30.0080.00020.96
8.2.20.0040.00417.91
8.2.10.0000.00718.04
8.2.00.0030.00317.90
8.1.280.0120.00625.92
8.1.270.0040.00422.10
8.1.260.0000.00726.35
8.1.250.0000.00828.09
8.1.240.0040.00423.95
8.1.230.0070.00617.45
8.1.220.0000.00717.74
8.1.210.0000.00918.77
8.1.200.0000.00917.22
8.1.190.0000.00817.10
8.1.180.0050.00318.10
8.1.170.0000.00818.39
8.1.160.0040.00418.95
8.1.150.0040.00420.53
8.1.140.0050.00219.48
8.1.130.0040.00418.72
8.1.120.0040.00417.30
8.1.110.0000.00717.38
8.1.100.0000.00817.34
8.1.90.0040.00417.44
8.1.80.0070.00017.33
8.1.70.0070.00017.24
8.1.60.0080.00017.46
8.1.50.0050.00217.35
8.1.40.0000.00817.38
8.1.30.0040.00417.49
8.1.20.0040.00417.51
8.1.10.0060.00317.46
8.1.00.0040.00417.36
8.0.300.0020.00518.77
8.0.290.0060.00316.63
8.0.280.0040.00418.36
8.0.270.0030.00317.18
8.0.260.0000.00616.85
8.0.250.0070.00016.91
8.0.240.0050.00316.92
8.0.230.0030.00317.00
8.0.220.0030.00616.76
8.0.210.0000.00716.75
8.0.200.0040.00416.94
8.0.190.0080.00016.93
8.0.180.0040.00416.79
8.0.170.0050.00216.88
8.0.160.0070.00016.93
8.0.150.0040.00416.86
8.0.140.0070.00016.87
8.0.130.0030.00313.40
8.0.120.0000.00716.89
8.0.110.0000.00716.87
8.0.100.0040.00416.93
8.0.90.0030.00516.73
8.0.80.0160.00716.75
8.0.70.0040.00416.98
8.0.60.0000.00716.82
8.0.50.0000.00716.94
8.0.30.0090.00917.05
8.0.20.0120.00817.40
8.0.10.0040.00417.11
8.0.00.0110.01116.83
7.4.330.0000.00615.55
7.4.320.0030.00516.41
7.4.300.0030.00316.52
7.4.290.0060.00016.44
7.4.280.0090.00016.52
7.4.270.0030.00316.57
7.4.260.0000.00716.49
7.4.250.0070.00016.38
7.4.240.0000.00716.41
7.4.230.0070.00016.33
7.4.220.0060.01216.39
7.4.210.0080.00616.39
7.4.200.0070.00016.62
7.4.160.0120.00616.46
7.4.150.0120.00417.40
7.4.140.0130.00417.86
7.4.130.0110.01516.46
7.4.120.0090.01116.57
7.4.110.0070.01016.44
7.4.100.0080.00816.09
7.4.90.0120.01516.43
7.4.80.0110.00719.39
7.4.70.0040.01116.36
7.4.60.0090.00616.51
7.4.50.0100.00716.50
7.4.40.0040.01216.54
7.4.30.0120.00416.38
7.4.00.0000.01414.75
7.3.330.0000.00513.02
7.3.320.0000.00513.02
7.3.310.0000.00716.20
7.3.300.0000.00616.05
7.3.290.0070.00716.24
7.3.280.0070.00916.21
7.3.270.0140.00517.40
7.3.260.0050.01216.28
7.3.250.0100.01016.19
7.3.240.0070.01016.27
7.3.230.0170.00316.41
7.3.210.0060.00916.29
7.3.200.0080.00916.19
7.3.190.0120.00616.44
7.3.180.0070.01016.33
7.3.170.0060.00916.13
7.3.160.0100.00716.12
7.3.00.0120.00016.57
7.2.330.0070.01116.32
7.2.320.0130.00716.49
7.2.310.0080.00916.51
7.2.300.0170.00716.43
7.2.290.0100.00516.43
7.2.130.0130.00316.45
7.2.120.0060.00316.66
7.2.110.0120.00316.45
7.2.100.0070.00716.80
7.2.90.0060.00916.80
7.2.80.0030.00916.64
7.2.70.0060.00616.89
7.2.60.0100.00316.87
7.2.50.0060.00616.62
7.2.40.0030.01016.71
7.2.30.0000.00916.67
7.2.20.0050.00816.38
7.2.10.0060.00316.40
7.2.00.0050.00817.92
7.1.250.0000.01315.61
7.1.240.0000.01615.67
7.1.230.0000.01015.71
7.1.220.0030.00915.68
7.1.210.0070.00415.74
7.1.200.0040.00815.57
7.1.190.0130.00015.72
7.1.180.0030.00615.58
7.1.170.0030.00615.47
7.1.160.0000.01515.40
7.1.150.0030.00615.73
7.1.140.0060.00915.74
7.1.130.0040.01015.70
7.1.120.0060.01015.57
7.1.110.0110.00415.72
7.1.100.0020.01016.82
7.1.90.0040.00715.59
7.1.80.0030.00715.70
7.1.70.0110.00716.31
7.1.60.0130.01025.32
7.1.50.0180.00925.22
7.1.40.0110.01525.09
7.1.30.0120.01524.88
7.1.20.0120.01025.18
7.1.10.0050.00716.19
7.1.00.0010.01116.18
7.0.330.0030.00515.29
7.0.320.0050.00515.13
7.0.310.0060.00614.96
7.0.300.0040.00715.05
7.0.290.0060.00315.30
7.0.280.0070.00415.31
7.0.270.0070.00715.17
7.0.260.0120.00315.37
7.0.250.0050.00515.34
7.0.240.0030.00615.52
7.0.230.0000.01515.38
7.0.220.0030.00715.10
7.0.210.0050.00515.16
7.0.200.0110.00516.10
7.0.190.0100.00315.88
7.0.180.0080.00815.75
7.0.170.0050.01115.76
7.0.160.0060.00715.70
7.0.150.0040.00915.68
7.0.140.0060.00915.80
7.0.130.0070.01016.03
7.0.120.0050.01015.82
7.0.110.0050.00915.90
7.0.100.0090.00615.62
7.0.90.0090.00715.80
7.0.80.0060.00815.77
7.0.70.0050.01115.67
7.0.60.0070.00915.53
7.0.50.0060.01015.89
7.0.40.0100.00614.70
7.0.30.0070.00814.89
7.0.20.0040.01214.67
7.0.10.0080.00614.63
7.0.00.0100.00614.93
5.6.380.0030.01014.09

preferences:
42.24 ms | 400 KiB | 5 Q