3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array1 = ['keepThis', 'remove', 'keep', 'save', 'delete']; $array2 = ['hangOnto', 'remove', 'retain', 'keep', 'delete']; $clean1 = $array1; $clean2 = array_diff_ukey( $array2, $array1, function($a, $b) use (&$clean1, $array1, $array2) { if (isset($array2[$b]) && $array2[$b] === $array1[$b]) { unset($clean1[$b]); } return strcmp($array2[$a], $array1[$b]); } ); print_r($clean1); print_r($clean2);

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)
8.3.60.0000.01518.43
8.3.50.0070.01518.31
8.3.40.0120.00318.71
8.3.30.0120.00318.91
8.3.20.0030.00524.18
8.3.10.0000.00724.66
8.3.00.0040.00426.16
8.2.180.0120.00325.92
8.2.170.0090.00618.83
8.2.160.0030.01022.96
8.2.150.0070.00025.66
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0070.00026.16
8.2.110.0090.00919.11
8.2.100.0080.00417.84
8.2.90.0050.00219.26
8.2.80.0040.00418.03
8.2.70.0000.00817.63
8.2.60.0000.00817.63
8.2.50.0000.00817.98
8.2.40.0000.00718.34
8.2.30.0050.00318.11
8.2.20.0000.00720.32
8.2.10.0050.00318.01
8.2.00.0000.00719.19
8.1.280.0110.00425.92
8.1.270.0050.00323.99
8.1.260.0060.00326.35
8.1.250.0080.00028.09
8.1.240.0110.01123.62
8.1.230.0060.00621.03
8.1.220.0000.00818.77
8.1.210.0000.00918.84
8.1.200.0030.00717.35
8.1.190.0030.00617.25
8.1.180.0040.00418.10
8.1.170.0000.00817.62
8.1.160.0000.00718.95
8.1.150.0000.00818.55
8.1.140.0070.00017.38
8.1.130.0040.00418.94
8.1.120.0000.00817.50
8.1.110.0000.00717.36
8.1.100.0050.00317.47
8.1.90.0040.00417.52
8.1.80.0000.00817.50
8.1.70.0000.00717.45
8.1.60.0000.00817.55
8.1.50.0170.00517.46
8.1.40.0180.00717.41
8.1.30.0250.00617.70
8.1.20.0280.00017.70
8.1.10.0200.00817.58
8.1.00.0220.00617.35
8.0.300.0030.00319.88
8.0.290.0070.00017.28
8.0.280.0030.00318.48
8.0.270.0070.00016.86
8.0.260.0030.00518.46
8.0.250.0000.00616.89
8.0.240.0000.00716.91
8.0.230.0040.00416.85
8.0.220.0040.00416.95
8.0.210.0030.00316.88
8.0.200.0030.00316.89
8.0.190.0040.00416.79
8.0.180.0040.00416.87
8.0.170.0120.00916.88
8.0.160.0220.00016.82
8.0.150.0200.00416.86
8.0.140.0140.01116.81
8.0.130.0220.00016.86
8.0.120.0190.00316.74
8.0.110.0160.00416.75
8.0.100.0140.01016.85
8.0.90.0190.00516.89
8.0.80.0160.00516.81
8.0.70.0150.00816.72
8.0.60.0130.01116.81
8.0.50.0130.00916.99
8.0.30.0130.00916.91
8.0.20.0210.00316.78
8.0.10.0140.00516.83
7.4.330.0000.00515.55
7.4.320.0000.00716.50
7.4.300.0030.00316.54
7.4.290.0240.00016.51
7.4.280.0210.00416.61
7.4.270.0150.00816.49
7.4.260.0170.00516.62
7.4.250.0180.00416.63
7.4.240.0180.00416.61
7.4.230.0270.00016.61
7.4.220.0110.00716.35
7.4.210.0140.00716.15
7.4.200.0160.00316.57
7.4.190.0170.00516.64
7.4.180.0150.00316.36
7.4.160.0170.00316.69
7.4.150.0190.00316.59
7.4.140.0130.00816.37
7.4.130.0150.00416.54
7.4.120.0210.00016.43
7.4.110.0190.00016.44
7.4.100.0230.00016.54
7.4.90.0120.00816.45
7.4.80.0210.00016.59
7.4.70.0190.00416.36
7.4.60.0210.00016.47
7.4.50.0130.00616.29
7.4.40.0130.00316.15
7.4.30.0000.01216.38
7.4.20.0100.00016.40
7.4.10.0030.00716.41
7.4.00.0030.00616.49

preferences:
66.99 ms | 401 KiB | 5 Q