3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array( array( "a", "b", "c" => "def" ), array( "aa", "bb", "cc" => "def" ), array( "a", "b", "c" => "defg" ), array( "aa", "bb", "cc" => "def" ), array( "a", "b", "c" => "def" ), ); var_dump( array_unique( $array, SORT_REGULAR ) ); var_dump( array_intersect_key($array, array_unique(array_map('serialize', $array))) );

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)
8.3.40.0110.00718.72
8.3.30.0060.00918.59
8.3.20.0040.00418.51
8.3.10.0080.00020.32
8.3.00.0060.00317.50
8.2.170.0150.00622.96
8.2.160.0070.00722.15
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0080.00026.16
8.2.120.0070.00019.83
8.2.110.0100.00021.12
8.2.100.0150.00017.66
8.2.90.0030.00619.26
8.2.80.0040.00419.28
8.2.70.0050.00317.50
8.2.60.0050.00317.80
8.2.50.0040.00418.07
8.2.40.0080.00018.28
8.2.30.0040.00418.04
8.2.20.0040.00417.65
8.2.10.0080.00019.37
8.2.00.0040.00417.70
8.1.270.0080.00024.66
8.1.260.0070.00026.35
8.1.250.0030.00628.09
8.1.240.0000.00922.29
8.1.230.0040.00821.08
8.1.220.0060.00317.74
8.1.210.0060.00618.91
8.1.200.0030.00917.35
8.1.190.0040.00417.51
8.1.180.0050.00318.10
8.1.170.0050.00520.64
8.1.160.0050.00218.73
8.1.150.0030.00618.57
8.1.140.0080.00017.32
8.1.130.0030.00317.74
8.1.120.0070.00017.35
8.1.110.0080.00017.31
8.1.100.0000.00717.42
8.1.90.0030.00517.39
8.1.80.0070.00017.43
8.1.70.0030.00317.31
8.1.60.0070.00317.49
8.1.50.0070.00017.37
8.1.40.0000.00717.32
8.1.30.0000.00817.56
8.1.20.0080.00317.47
8.1.10.0020.00517.51
8.1.00.0000.00717.29
8.0.300.0040.00419.86
8.0.290.0080.00016.58
8.0.280.0030.00318.38
8.0.270.0030.00317.24
8.0.260.0000.00816.79
8.0.250.0040.00416.93
8.0.240.0030.00516.76
8.0.230.0070.00016.83
8.0.220.0040.00316.80
8.0.210.0080.00016.86
8.0.200.0070.00016.98
8.0.190.0000.00816.92
8.0.180.0000.00716.73
8.0.170.0030.00616.80
8.0.160.0040.00416.71
8.0.150.0030.00616.87
8.0.140.0030.00516.69
8.0.130.0000.00613.18
8.0.120.0000.00716.77
8.0.110.0040.00316.93
8.0.100.0050.00316.63
8.0.90.0040.00416.86
8.0.80.0040.01116.84
8.0.70.0040.00416.89
8.0.60.0050.00316.71
8.0.50.0080.00016.82
8.0.30.0140.00616.86
8.0.20.0090.01517.08
8.0.10.0080.00016.98
8.0.00.0120.00616.77
7.4.330.0060.00012.83
7.4.320.0000.00816.54
7.4.300.0000.00616.44
7.4.290.0070.00016.43
7.4.280.0040.00416.54
7.4.270.0040.00416.44
7.4.260.0000.00613.21
7.4.250.0050.00316.56
7.4.240.0030.00516.46
7.4.230.0000.00716.60
7.4.220.0100.01016.59
7.4.210.0110.00616.46
7.4.200.0070.00016.23
7.4.190.0050.00316.59
7.4.160.0120.00916.36
7.4.150.0140.01116.53
7.4.140.0110.00816.41
7.4.130.0140.01216.42
7.4.120.0090.00916.28
7.4.110.0110.00816.30
7.4.100.0060.01316.34
7.4.90.0060.01216.35
7.4.80.0140.00416.32
7.4.70.0100.00716.41
7.4.60.0070.01016.27
7.4.50.0060.00016.15
7.4.40.0090.01116.41
7.4.30.0060.01116.48
7.4.00.0120.00515.04
7.3.330.0000.00612.89
7.3.320.0000.00512.89
7.3.310.0030.00316.06
7.3.300.0000.00716.04
7.3.290.0040.01116.15
7.3.280.0110.00716.13
7.3.270.0030.01616.10
7.3.260.0130.00516.24
7.3.250.0170.00216.38
7.3.240.0170.00016.29
7.3.230.0070.01016.22
7.3.210.0000.01816.45
7.3.200.0110.00719.39
7.3.190.0040.01716.36
7.3.180.0040.01316.30
7.3.170.0090.00916.46
7.3.160.0090.00616.07
7.3.120.0080.00914.55
7.3.110.0030.01314.79
7.3.100.0060.01014.68
7.3.90.0060.00914.62
7.3.80.0090.00914.45
7.3.70.0070.00714.63
7.3.60.0040.01114.84
7.3.50.0060.00314.57
7.3.40.0090.00014.70
7.3.30.0000.01314.34
7.3.20.0070.01016.46
7.3.10.0040.00716.22
7.3.00.0060.00316.51
7.2.330.0120.00616.40
7.2.320.0130.01016.41
7.2.310.0120.00916.50
7.2.300.0060.01716.52
7.2.290.0060.01116.55
7.2.250.0060.00914.96
7.2.240.0090.00914.97
7.2.230.0100.01015.11
7.2.220.0030.00615.02
7.2.210.0080.00814.75
7.2.200.0000.01814.91
7.2.190.0060.01014.71
7.2.180.0090.00314.52
7.2.170.0000.01814.63
7.2.00.0100.01019.03
7.1.330.0080.00815.59
7.1.320.0030.01015.71
7.1.310.0040.00715.79
7.1.300.0060.00615.75
7.1.290.0000.01115.61
7.1.280.0130.00315.56
7.1.270.0040.00715.73
7.1.260.0070.00715.78
7.1.100.0060.00917.98
7.1.70.0100.00016.88
7.1.60.0100.01619.40
7.1.50.0070.01416.82
7.1.00.0070.07322.37
7.0.200.0000.00916.81
7.0.140.0030.07322.07
7.0.120.0070.07022.05
7.0.60.0100.07321.74
7.0.50.0070.08317.81
7.0.40.0070.07020.12
7.0.30.0470.05720.00
7.0.20.0230.07020.17
7.0.10.0100.07720.21
7.0.00.0100.08320.08
5.6.280.0030.07320.81
5.6.210.0070.05720.61
5.6.200.0000.05718.16
5.6.190.0030.09020.40
5.6.180.0230.05020.45
5.6.170.0400.06020.45
5.6.160.0030.07320.40
5.6.150.0070.08018.18
5.6.140.0000.06318.18
5.6.130.0070.08718.11
5.6.120.0100.08320.89
5.6.110.0170.06321.02
5.6.100.0070.08720.97
5.6.90.0100.07720.96
5.6.80.0070.05320.40
5.5.350.0100.07720.34
5.5.340.0030.05317.92
5.5.330.0130.07720.56
5.5.320.0230.08320.24
5.5.310.0130.04320.34
5.5.300.0000.04017.91
5.5.290.0030.07017.91
5.5.280.0070.08720.85
5.5.270.0100.07720.79
5.5.260.0030.07020.79
5.5.250.0130.07320.58
5.5.240.0130.04020.26
5.4.450.0030.07719.50
5.4.440.0070.07719.46
5.4.430.0030.07019.24
5.4.420.0070.05019.11
5.4.410.0030.07319.00
5.4.400.0070.08319.16
5.4.390.0070.03719.16
5.4.380.0070.03719.09
5.4.370.0100.05719.18
5.4.360.0030.06019.18
5.4.350.0200.05319.15
5.4.340.0070.04318.92
5.4.320.0070.08018.79
5.4.310.0030.07018.78
5.4.300.0030.04719.17
5.4.290.0030.04019.00
5.4.280.0070.04719.07
5.4.270.0000.07719.17
5.4.260.0030.06719.17
5.4.250.0200.05319.08
5.4.240.0100.03318.78
5.4.230.0070.05319.07
5.4.220.0030.06719.07
5.4.210.0070.06318.80
5.4.200.0000.07319.14
5.4.190.0100.06318.91
5.4.180.0000.07719.07
5.4.170.0100.07318.79
5.4.160.0030.04719.14
5.4.150.0070.06318.79
5.4.140.0030.04716.35
5.4.130.0170.06716.36
5.4.120.0130.05016.27
5.4.110.0100.06716.61
5.4.100.0130.07016.41
5.4.90.0100.05316.27
5.4.80.0070.07716.25
5.4.70.0100.07316.31
5.4.60.0200.05716.40
5.4.50.0070.03716.36
5.4.40.0170.06316.25
5.4.30.0070.03716.20
5.4.20.0030.06316.38
5.4.10.0170.04316.33
5.4.00.0100.06315.72
5.3.290.0170.04014.75
5.3.280.0200.06314.54
5.3.270.0070.07314.55
5.3.260.0070.06314.53
5.3.250.0070.04014.51
5.3.240.0070.05014.55
5.3.230.0030.07314.57
5.3.220.0070.06714.53
5.3.210.0100.05314.66
5.3.200.0070.07314.50
5.3.190.0030.07714.51
5.3.180.0100.06714.64
5.3.170.0100.06714.39
5.3.160.0070.07314.45
5.3.150.0100.06014.36
5.3.140.0070.08014.49
5.3.130.0030.07014.48
5.3.120.0030.06314.52
5.3.110.0070.04714.47
5.3.100.0030.06014.00
5.3.90.0070.03713.90
5.3.80.0030.08013.95
5.3.70.0070.07713.96
5.3.60.0000.05713.93
5.3.50.0030.07013.92
5.3.40.0030.04013.98
5.3.30.0030.07013.71
5.3.20.0100.04313.67
5.3.10.0070.05013.64
5.3.00.0000.04713.50
5.2.170.0030.05711.15
5.2.160.0030.06311.30
5.2.150.0130.02011.30
5.2.140.0030.06011.09
5.2.130.0000.04311.01
5.2.120.0070.05311.26
5.2.110.0070.03011.04
5.2.100.0100.03011.26
5.2.90.0070.05010.98
5.2.80.0000.03011.04
5.2.70.0070.02711.00
5.2.60.0000.03311.02
5.2.50.0030.03710.95
5.2.40.0030.02710.96
5.2.30.0030.03010.98
5.2.20.0030.03011.11
5.2.10.0000.03010.89
5.2.00.0030.02710.79
5.1.60.0000.02710.06
5.1.50.0000.02710.00
5.1.40.0000.0239.95
5.1.30.0030.02710.33
5.1.20.0000.03010.34
5.1.10.0000.03010.00
5.1.00.0030.02710.04
5.0.50.0000.0238.53
5.0.40.0000.0208.41
5.0.30.0070.0308.24
5.0.20.0000.0208.10
5.0.10.0030.0178.19
5.0.00.0000.0308.19
4.4.90.0000.0178.10
4.4.80.0000.0178.10
4.4.70.0000.0178.10
4.4.60.0030.0138.10
4.4.50.0000.0138.10
4.4.40.0000.0238.10
4.4.30.0030.0138.10
4.4.20.0000.0208.10
4.4.10.0000.0178.10
4.4.00.0030.0238.10
4.3.110.0000.0178.10
4.3.100.0000.0208.10
4.3.90.0000.0138.10
4.3.80.0030.0238.10
4.3.70.0030.0138.10
4.3.60.0000.0138.10
4.3.50.0000.0178.10
4.3.40.0000.0278.10
4.3.30.0030.0138.10
4.3.20.0030.0138.10
4.3.10.0030.0138.10
4.3.00.0000.0138.10

preferences:
50.28 ms | 404 KiB | 6 Q