3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ [ 'a' => 'b', 'c' => 'd', 'h' => 'e', 'i' => 'm' ], [ 'a' => 'b', 'f' => 'g', 'c' => 'f' ], [ 'a' => 'd', 'c' => 'd' ], [ 'i' => 'm' ] ]; for ($i = 1, $count = count($array); $i < $count; ++$i) { $array[$i] = array_diff_assoc( $array[$i], ...array_slice($array, 0, $i, true) ); } var_export($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)
8.4.120.0110.00920.35
8.4.110.0110.00920.34
8.4.100.0050.00418.63
8.4.90.0130.00620.50
8.4.80.0150.00517.85
8.4.70.0120.00918.00
8.4.60.0120.00818.86
8.4.50.0080.00117.36
8.4.40.0090.00920.41
8.4.30.0060.01322.29
8.4.20.0180.00419.51
8.4.10.0060.00322.05
8.3.250.0070.00118.75
8.3.240.0090.00916.52
8.3.230.0070.00116.31
8.3.220.0090.00819.12
8.3.210.0080.01216.61
8.3.200.0040.00416.46
8.3.190.0050.00317.11
8.3.180.0080.00918.37
8.3.170.0150.00318.81
8.3.160.0040.00416.36
8.3.150.0180.00018.65
8.3.140.0110.00716.72
8.3.130.0040.00418.25
8.3.120.0100.00020.59
8.3.110.0040.01520.94
8.3.100.0160.00316.66
8.3.90.0060.00926.77
8.3.80.0060.00316.75
8.3.70.0170.00318.43
8.3.60.0110.00416.38
8.3.50.0110.01118.21
8.3.40.0100.01020.39
8.3.30.0110.01118.38
8.3.20.0040.00424.18
8.3.10.0040.00424.66
8.3.00.0040.00426.16
8.2.290.0130.00616.48
8.2.280.0040.00418.43
8.2.270.0060.01317.31
8.2.260.0050.00320.54
8.2.250.0110.00416.53
8.2.240.0080.00816.86
8.2.230.0040.00422.58
8.2.220.0060.00324.06
8.2.210.0050.00326.77
8.2.200.0000.00916.75
8.2.190.0090.00616.75
8.2.180.0130.00618.29
8.2.170.0150.00019.09
8.2.160.0070.01422.96
8.2.150.0000.00725.66
8.2.140.0090.00024.66
8.2.130.0000.00826.16
8.2.120.0040.00419.23
8.2.110.0060.00321.12
8.2.100.0040.00717.78
8.2.90.0060.00317.78
8.2.80.0000.01118.03
8.2.70.0080.00017.63
8.2.60.0150.00317.50
8.2.50.0110.00717.50
8.2.40.0110.00517.38
8.2.30.0140.00217.63
8.2.20.0110.00617.50
8.2.10.0080.00817.50
8.2.00.0110.00617.60
8.1.330.0100.01116.13
8.1.320.0120.00716.18
8.1.310.0070.00718.52
8.1.300.0120.00317.93
8.1.290.0110.00030.84
8.1.280.0110.00725.92
8.1.270.0040.00423.79
8.1.260.0040.00426.35
8.1.250.0050.00228.09
8.1.240.0040.00422.60
8.1.230.0080.00320.90
8.1.220.0050.00317.74
8.1.210.0100.00318.77
8.1.200.0040.00417.48
8.1.190.0060.01216.88
8.1.180.0100.01016.88
8.1.170.0110.00617.38
8.1.160.0080.00817.00
8.1.150.0070.01117.13
8.1.140.0130.00317.38
8.1.130.0150.00017.13
8.1.120.0160.00017.13
8.1.110.0050.01217.13
8.1.100.0160.00016.88
8.1.90.0120.00417.38
8.1.80.0150.00317.24
8.1.70.0100.01017.25
8.1.60.0100.00717.13
8.1.50.0120.00517.13
8.1.40.0140.00317.35
8.1.30.0140.00517.38
8.1.20.0100.00717.25
8.1.10.0150.00317.38
8.1.00.0140.00417.13
8.0.300.0000.00719.89
8.0.290.0040.00416.63
8.0.280.0100.00716.52
8.0.270.0110.00516.52
8.0.260.0110.00616.52
8.0.250.0090.00716.52
8.0.240.0090.00916.52
8.0.230.0000.01616.63
8.0.220.0160.00016.75
8.0.210.0130.00316.52
8.0.200.0100.00816.52
8.0.190.0130.00416.52
8.0.180.0150.00216.52
8.0.170.0090.00916.52
8.0.160.0140.00416.63
8.0.150.0100.00716.52
8.0.140.0130.00416.52
8.0.130.0080.00816.52
8.0.120.0040.01216.52
8.0.110.0100.00516.75
8.0.100.0110.00416.63
8.0.90.0110.00516.52
8.0.80.0090.00916.52
8.0.70.0110.00616.52
8.0.60.0050.01116.52
8.0.50.0100.00716.52
8.0.30.0120.00316.63
8.0.20.0090.00616.63
8.0.10.0110.00516.59

preferences:
28.75 ms | 403 KiB | 5 Q