3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ 'firstname', 'bob', 'lastname', 'alex', 'foo', ]; var_export( array_reduce( $array, function ($result, $v) { static $k; if ($k === null) { $k = $v; } else { $result[$k] = $v; $k = null; } return $result; }, [] ) );

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)
8.5.30.0130.00817.99
8.5.20.0090.00820.16
8.5.10.0110.00816.74
8.5.00.0100.01120.11
8.4.180.0100.01120.59
8.4.170.0160.00520.66
8.4.160.0120.00920.78
8.4.150.0080.00416.78
8.4.140.0120.00917.54
8.4.130.0130.00718.76
8.4.120.0040.00424.26
8.4.110.0140.00624.16
8.4.100.0120.00917.90
8.4.90.0110.00920.40
8.4.80.0090.01119.16
8.4.70.0090.00819.04
8.4.60.0070.00922.53
8.4.50.0140.00720.31
8.4.40.0070.01317.70
8.4.30.0120.00320.61
8.4.20.0400.01017.33
8.4.10.0380.01017.63
8.3.300.0150.00720.81
8.3.290.0090.00320.79
8.3.280.0130.00918.48
8.3.270.0120.00816.60
8.3.260.0100.00916.54
8.3.250.0150.00618.90
8.3.240.0150.00317.07
8.3.230.0110.00516.48
8.3.220.0110.00918.86
8.3.210.0100.00816.49
8.3.200.0070.00216.59
8.3.190.0090.01017.07
8.3.180.0060.00219.10
8.3.170.0120.00616.74
8.3.160.0080.01118.55
8.3.150.0340.00716.79
8.3.140.0390.00716.64
8.3.130.0270.01416.27
8.3.120.0370.00416.41
8.3.110.0340.00716.41
8.3.100.0360.01016.34
8.3.90.0390.00616.62
8.3.80.0380.00916.25
8.3.70.0410.00416.49
8.3.60.0350.01016.41
8.3.50.0340.01516.33
8.3.40.0290.00517.59
8.3.30.0200.01417.34
8.3.20.0320.00617.41
8.3.10.0220.01517.34
8.3.00.0190.00419.13
8.2.300.0110.00920.54
8.2.290.0120.00716.80
8.2.280.0100.00918.59
8.2.270.0320.00616.47
8.2.260.0360.00416.30
8.2.250.0330.00616.43
8.2.240.0280.01116.44
8.2.230.0300.01016.29
8.2.220.0280.01116.64
8.2.210.0250.01616.27
8.2.200.0270.01216.41
8.2.190.0460.00616.53
8.2.180.0350.00016.34
8.2.170.0250.00417.61
8.2.160.0260.00617.64
8.2.150.0140.01417.52
8.2.140.0280.01217.46
8.2.130.0340.00717.59
8.2.120.0310.00917.52
8.2.110.0350.00417.65
8.2.100.0310.00717.55
8.2.90.0350.00317.61
8.2.80.0320.00617.39
8.2.70.0270.01217.62
8.2.60.0320.00617.58
8.2.50.0320.00517.31
8.2.40.0300.00917.59
8.2.30.0340.00717.51
8.2.20.0270.00617.55
8.2.10.0190.00517.47
8.2.00.0340.00417.31
8.1.340.0130.01020.13
8.1.320.0100.01016.04

preferences:
42.72 ms | 849 KiB | 5 Q