3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(array('fname' => 'hak', 'lname' => 're'), array('fname' => 'iro', 'lname' => 'egbu')); $b = array(array('fname' => 'nik', 'lname' => 'iC'), array('fname' => 'hak', 'lname' => 're')); $c = array_merge($a, $b); var_dump(array_unique($c));

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)
8.3.60.0100.01016.63
8.3.50.0240.00522.04
8.3.40.0110.00618.58
8.3.30.0080.00619.11
8.3.20.0000.00720.00
8.3.10.0050.00323.66
8.3.00.0000.00720.72
8.2.180.0100.01316.63
8.2.170.0140.00022.96
8.2.160.0100.00322.07
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0050.00322.25
8.2.110.0060.00322.13
8.2.100.0070.00417.91
8.2.90.0030.00619.30
8.2.80.0050.00318.04
8.2.70.0060.00317.50
8.2.60.0000.00917.80
8.2.50.0040.00418.07
8.2.40.0000.00719.32
8.2.30.0050.00218.05
8.2.20.0070.00017.57
8.2.10.0000.00819.34
8.2.00.0000.00917.60
8.1.280.0100.00725.92
8.1.270.0060.00923.83
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0060.00323.96
8.1.230.0110.00020.93
8.1.220.0050.00317.74
8.1.210.0000.00818.77
8.1.200.0060.00317.23
8.1.190.0070.00017.40
8.1.180.0060.00318.10
8.1.170.0000.00818.66
8.1.160.0060.00321.80
8.1.150.0040.00418.52
8.1.140.0000.01117.37
8.1.130.0070.00017.80
8.1.120.0050.00217.29
8.1.110.0050.00317.35
8.1.100.0000.00717.30
8.1.90.0040.00317.38
8.1.80.0030.00317.28
8.1.70.0030.00317.35
8.1.60.0000.00717.35
8.1.50.0040.00417.43
8.1.40.0000.00817.29
8.1.30.0030.00517.60
8.1.20.0060.00317.64
8.1.10.0040.00417.36
8.1.00.0050.00617.28
8.0.300.0000.00718.77
8.0.290.0050.00217.04
8.0.280.0030.00318.36
8.0.270.0030.00317.30
8.0.260.0000.00716.82
8.0.250.0070.00016.91
8.0.240.0100.00016.94
8.0.230.0030.00316.82
8.0.220.0030.00316.76
8.0.210.0000.00816.81
8.0.200.0030.00316.95
8.0.190.0000.00716.95
8.0.180.0040.00416.83
8.0.170.0050.00316.91
8.0.160.0000.00816.84
8.0.150.0000.00816.82
8.0.140.0070.00016.79
8.0.130.0050.00013.34
8.0.120.0000.00716.74
8.0.110.0030.00516.86
8.0.100.0000.00816.81
8.0.90.0000.00716.75
8.0.80.0110.00516.86
8.0.70.0000.00716.94
8.0.60.0070.00016.73
8.0.50.0050.00316.94
8.0.30.0090.00916.95
8.0.20.0120.00917.40
8.0.10.0050.00217.00
8.0.00.0150.00516.65
7.4.330.0030.00315.09
7.4.320.0000.00616.36
7.4.300.0030.00316.38
7.4.290.0020.00516.49
7.4.280.0000.00616.55
7.4.270.0070.00016.41
7.4.260.0000.00716.49
7.4.250.0040.00416.52
7.4.240.0020.00516.45
7.4.230.0030.00316.52
7.4.220.0160.01016.55
7.4.210.0090.00716.49
7.4.200.0000.00716.59
7.4.190.0000.00816.61
7.4.160.0040.01116.40
7.4.150.0090.00917.40
7.4.140.0180.00517.86
7.4.130.0050.01216.48
7.4.120.0060.01216.35
7.4.110.0130.00316.55
7.4.100.0140.00816.46
7.4.90.0080.01116.49
7.4.80.0070.01116.37
7.4.70.0060.00916.34
7.4.60.0100.00716.37
7.4.50.0000.00816.28
7.4.40.0030.01422.77
7.4.30.0100.00616.28
7.4.00.0040.00814.97
7.3.330.0000.00513.04
7.3.320.0000.00512.93
7.3.310.0000.00716.20
7.3.300.0000.00716.09
7.3.290.0080.00816.23
7.3.280.0100.00916.15
7.3.270.0090.00917.40
7.3.260.0110.00616.22
7.3.250.0090.00916.26
7.3.240.0070.01016.52
7.3.230.0110.00516.54
7.3.210.0060.01316.45
7.3.200.0160.00619.39
7.3.190.0060.00916.45
7.3.180.0150.00316.29
7.3.170.0080.00816.27
7.3.160.0140.00716.38
7.3.120.0030.01414.70
7.2.330.0100.01016.62
7.2.320.0060.01116.68
7.2.310.0030.01916.18
7.2.300.0080.01116.37
7.2.290.0160.00616.23
7.2.60.0030.01316.57
7.2.00.0100.00718.99
7.1.200.0090.00315.84
7.1.100.0000.01117.65
7.1.70.0070.01017.05
7.1.60.0060.01919.27
7.1.50.0150.00616.73
7.1.00.0030.07722.40
7.0.200.0050.00716.85
7.0.140.0030.07322.11
7.0.100.0030.09020.03
7.0.90.0130.08020.16
7.0.80.0030.08319.89
7.0.70.0070.05320.13
7.0.60.0070.05320.05
7.0.50.0100.07020.36
7.0.40.0100.08320.14
7.0.30.0030.08720.07
7.0.20.0130.08020.05
7.0.10.0000.09020.04
7.0.00.0030.08320.14
5.6.280.0030.07321.09
5.6.250.0130.04320.75
5.6.240.0130.06020.65
5.6.230.0230.06720.67
5.6.220.0070.08720.74
5.6.210.0030.08320.58
5.6.200.0130.07721.11
5.6.190.0030.08721.04
5.6.180.0130.07321.07
5.6.170.0100.08020.96
5.6.160.0030.09021.05
5.6.150.0100.07021.14
5.6.140.0100.05021.01
5.6.130.0030.08021.00
5.6.120.0100.08321.09
5.6.110.0070.07321.02
5.6.100.0100.07320.93
5.6.90.0130.08021.00
5.6.80.0070.07720.42
5.6.70.0100.04720.39
5.6.60.0030.07320.45
5.6.50.0070.08320.50
5.6.40.0070.07720.41
5.6.30.0170.07020.49
5.6.20.0070.07320.45
5.6.10.0000.07720.43
5.6.00.0100.05020.30
5.5.380.0000.07320.42
5.5.370.0100.08020.57
5.5.360.0070.08020.38
5.5.350.0170.06720.43
5.5.340.0030.08320.91
5.5.330.0130.07720.89
5.5.320.0130.07320.79
5.5.310.0130.06020.88
5.5.300.0030.09020.90
5.5.290.0200.07720.79
5.5.280.0100.08020.88
5.5.270.0070.08720.79
5.5.260.0070.08320.86
5.5.250.0030.08320.67
5.5.240.0130.07020.27
5.5.230.0170.06720.11
5.5.220.0000.08320.29
5.5.210.0170.06320.26
5.5.200.0130.07320.19
5.5.190.0100.07020.08
5.5.180.0070.08020.28
5.5.160.0100.07320.15
5.5.150.0030.07720.07
5.5.140.0070.07720.22
5.5.130.0130.06720.21
5.5.120.0100.07019.98
5.5.110.0100.07720.07
5.5.100.0130.07319.98
5.5.90.0070.07719.94
5.5.80.0100.06320.07
5.5.70.0030.05020.05
5.5.60.0070.07320.09
5.5.50.0170.06720.00
5.5.40.0100.07320.02
5.5.30.0100.07720.11
5.5.20.0030.07720.15
5.5.10.0130.06019.96
5.5.00.0000.08720.01
5.4.450.0100.05019.48
5.4.440.0030.05319.36
5.4.430.0030.08319.36
5.4.420.0070.06719.39
5.4.410.0030.06319.33
5.4.400.0070.06719.04
5.4.390.0070.07318.81
5.4.380.0170.06019.07
5.4.370.0030.08319.05
5.4.360.0130.07719.03
5.4.350.0130.06718.97
5.4.340.0100.04018.90
5.4.320.0130.06018.81
5.4.310.0030.04719.10
5.4.300.0130.06319.13
5.4.290.0130.06718.98
5.4.280.0100.07719.14
5.4.270.0000.08319.03
5.4.260.0100.07019.04
5.4.250.0070.07719.14
5.4.240.0100.07718.80
5.4.230.0030.07318.98
5.4.220.0100.03318.80
5.4.210.0030.03719.02
5.4.200.0100.06318.97
5.4.190.0100.07318.89
5.4.180.0170.06319.22
5.4.170.0030.08318.80
5.4.160.0030.05718.79
5.4.150.0100.07319.23
5.4.140.0070.07316.06
5.4.130.0030.04016.27
5.4.120.0100.06716.37
5.4.110.0030.04316.33
5.4.100.0000.08016.32
5.4.90.0000.06016.26
5.4.80.0070.05316.29
5.4.70.0070.04316.39
5.4.60.0030.07716.24
5.4.50.0170.02716.34
5.4.40.0030.04716.29
5.4.30.0070.07016.40
5.4.20.0130.07016.28
5.4.10.0070.07316.41
5.4.00.0100.06715.81
5.3.290.0100.06714.65
5.3.280.0030.07314.53
5.3.270.0130.06314.46
5.3.260.0170.05714.45
5.3.250.0000.05014.45
5.3.240.0100.07014.43
5.3.230.0070.06314.59
5.3.220.0070.07314.39
5.3.210.0030.07714.43
5.3.200.0100.06014.53
5.3.190.0130.07014.53
5.3.180.0030.07314.57
5.3.170.0100.07014.53
5.3.160.0130.06714.48
5.3.150.0130.05714.48
5.3.140.0130.07014.50
5.3.130.0070.08014.53
5.3.120.0100.07714.38
5.3.110.0130.06714.41
5.3.100.0070.04013.90
5.3.90.0070.07013.95
5.3.80.0070.07314.01
5.3.70.0070.07313.89
5.3.60.0070.07713.98
5.3.50.0100.07313.94
5.3.40.0070.07313.80
5.3.30.0100.06713.76
5.3.20.0070.06313.62
5.3.10.0130.06313.41
5.3.00.0100.07013.58
5.2.170.0030.04711.95
5.2.160.0000.06711.95
5.2.150.0070.03311.95
5.2.140.0070.03711.95
5.2.130.0070.05711.95
5.2.120.0070.05311.95
5.2.110.0030.06011.95
5.2.100.0030.06311.95
5.2.90.0070.06311.95
5.2.80.0000.06311.95
5.2.70.0170.05011.95
5.2.60.0070.06011.95
5.2.50.0070.06011.95
5.2.40.0100.05711.95
5.2.30.0070.06011.95
5.2.20.0070.06011.95
5.2.10.0030.06311.95
5.2.00.0030.06311.95
5.1.60.0170.04311.95
5.1.50.0030.05311.95
5.1.40.0030.05311.95
5.1.30.0030.05311.95
5.1.20.0070.05711.95
5.1.10.0030.06011.95
5.1.00.0100.05311.95
5.0.50.0070.04311.95
5.0.40.0100.03711.95
5.0.30.0000.06311.95
5.0.20.0000.02711.95
5.0.10.0070.04011.95
5.0.00.0000.06711.95
4.4.90.0070.03311.95
4.4.80.0000.03311.95
4.4.70.0000.03711.95
4.4.60.0070.03011.95
4.4.50.0000.03711.95
4.4.40.0130.04311.95
4.4.30.0100.03011.95
4.4.20.0000.03711.95
4.4.10.0000.03711.95
4.4.00.0030.05311.95
4.3.110.0030.03711.95
4.3.100.0030.01711.95
4.3.90.0030.03311.95
4.3.80.0030.05011.95
4.3.70.0070.03011.95
4.3.60.0070.03011.95
4.3.50.0030.03311.95
4.3.40.0030.06311.95
4.3.30.0000.01711.95
4.3.20.0030.03711.95
4.3.10.0000.01711.95
4.3.00.0000.03711.95

preferences:
49.66 ms | 401 KiB | 5 Q