3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array1 = ['keep', 'remove', 'save', 'keep', 'save', 'delete']; $array2 = ['hold', 'remove', 'keep', 'retain', 'keep', 'delete']; $map = array_combine($array1,$array2); $map = array_filter($map ,function ($item) use (&$map) { $keep_data = ($item != key($map)); next($map); return $keep_data; }); $clean1 = array_keys($map); $clean2 = array_values($map); var_export($clean1); echo "<br />"; var_export($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)
8.3.60.0070.00718.56
8.3.50.0080.00818.36
8.3.40.0110.00418.67
8.3.30.0000.01518.91
8.3.20.0000.00724.18
8.3.10.0080.00024.66
8.3.00.0040.00426.16
8.2.180.0110.00425.92
8.2.170.0110.00418.95
8.2.160.0000.01422.96
8.2.150.0000.00725.66
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0070.00026.16
8.2.110.0030.00722.26
8.2.100.0070.00317.78
8.2.90.0030.00517.63
8.2.80.0060.00318.74
8.2.70.0040.00417.63
8.2.60.0050.00317.63
8.2.50.0040.00417.63
8.2.40.0030.00519.35
8.2.30.0040.00417.93
8.2.20.0040.00420.43
8.2.10.0040.00418.06
8.2.00.0000.00719.31
8.1.280.0040.01125.92
8.1.270.0060.00323.99
8.1.260.0000.00826.35
8.1.250.0000.00828.09
8.1.240.0070.01122.46
8.1.230.0120.00019.03
8.1.220.0040.00417.75
8.1.210.0060.00318.77
8.1.200.0050.00317.48
8.1.190.0030.00517.13
8.1.180.0000.00818.10
8.1.170.0070.00018.91
8.1.160.0020.00518.82
8.1.150.0040.00418.58
8.1.140.0070.00017.44
8.1.130.0000.00718.99
8.1.120.0030.00317.47
8.1.110.0080.00017.43
8.1.100.0020.00517.41
8.1.90.0050.00217.30
8.1.80.0040.00417.34
8.1.70.0030.00317.32
8.1.60.0040.00417.54
8.1.50.0270.00017.38
8.1.40.0270.00317.52
8.1.30.0270.00317.65
8.1.20.0200.00817.48
8.1.10.0220.00617.53
8.1.00.0280.00017.44
8.0.300.0000.00719.70
8.0.290.0040.00416.75
8.0.280.0030.00318.46
8.0.270.0000.00716.74
8.0.260.0000.00618.44
8.0.250.0040.00416.94
8.0.240.0050.00316.96
8.0.230.0030.00316.94
8.0.220.0050.00316.81
8.0.210.0000.00716.81
8.0.200.0030.00316.89
8.0.190.0040.00417.01
8.0.180.0000.00916.79
8.0.170.0190.00416.91
8.0.160.0170.00416.86
8.0.150.0180.00416.68
8.0.140.0140.00816.87
8.0.130.0130.00816.79
8.0.120.0180.00416.75
8.0.110.0150.00616.75
8.0.100.0150.00716.90
8.0.90.0180.00616.75
8.0.80.0130.01016.78
8.0.70.0150.00816.80
8.0.60.0180.00316.87
8.0.50.0200.00316.82
8.0.30.0140.00916.75
8.0.20.0200.00316.95
8.0.10.0170.00516.94
7.4.330.0000.00515.55
7.4.320.0060.00016.59
7.4.300.0030.00316.58
7.4.290.0200.00516.59
7.4.280.0250.00016.51
7.4.270.0140.00716.51
7.4.260.0170.00016.48
7.4.250.0110.00816.61
7.4.240.0180.00716.57
7.4.230.0110.00816.42
7.4.220.0180.00016.59
7.4.210.0130.00716.58
7.4.200.0180.00416.56
7.4.190.0190.00016.49
7.4.180.0150.00416.53
7.4.160.0090.00516.53
7.4.150.0090.00616.49
7.4.140.0080.00816.45
7.4.130.0140.00316.30
7.4.120.0190.00316.53
7.4.110.0130.00616.35
7.4.100.0160.00516.52
7.4.90.0130.00916.46
7.4.80.0220.00016.41
7.4.70.0130.00716.36
7.4.60.0180.00316.45
7.4.50.0220.00016.47
7.4.40.0090.00916.36
7.4.30.0180.00016.37
7.4.20.0170.00016.28
7.4.10.0080.00816.44
7.4.00.0210.00016.41

preferences:
51.43 ms | 400 KiB | 5 Q