3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [[4, 3, 2, 1], [5, 6, 7, 8], [12, 11, 10, 9], [13, 14, 15, 16]]; function f($a){foreach($a as$i=>$y){foreach($y as$x=>$w){$r[]=$i&1?$w:array_reverse($y)[$x];}}return $r;} print_r(f($a));

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)
8.3.70.0070.00716.59
8.3.60.0070.01118.55
8.3.50.0060.01218.20
8.3.40.0070.00718.67
8.3.30.0170.00318.70
8.3.20.0040.00421.74
8.3.10.0090.00023.59
8.3.00.0000.00721.02
8.2.180.0070.01025.92
8.2.170.0150.00019.09
8.2.160.0100.00322.96
8.2.150.0040.00425.66
8.2.140.0040.00424.66
8.2.130.0060.00326.16
8.2.120.0000.00721.07
8.2.110.0090.00021.05
8.2.100.0040.00817.84
8.2.90.0030.00619.34
8.2.80.0040.00417.97
8.2.70.0080.00017.87
8.2.60.0050.00517.92
8.2.50.0080.00217.86
8.2.40.0070.00319.45
8.2.30.0020.00718.36
8.2.20.0060.00317.78
8.2.10.0090.00218.35
8.2.00.0090.00118.40
8.1.280.0070.01425.92
8.1.270.0040.00423.99
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0060.00323.91
8.1.230.0060.00621.00
8.1.220.0000.00817.79
8.1.210.0030.00818.77
8.1.200.0040.00817.35
8.1.190.0050.00517.22
8.1.180.0020.00817.61
8.1.170.0010.00917.94
8.1.160.0040.00518.01
8.1.150.0020.00818.03
8.1.140.0020.00719.69
8.1.130.0080.00318.23
8.1.120.0060.00617.24
8.1.110.0060.00517.42
8.1.100.0060.00317.42
8.1.90.0070.00317.46
8.1.80.0000.01017.41
8.1.70.0050.00617.27
8.1.60.0070.00317.42
8.1.50.0050.00517.50
8.1.40.0080.00317.35
8.1.30.0060.00417.43
8.1.20.0050.00517.46
8.1.10.0030.00617.42
8.1.00.0080.00117.23
8.0.300.0020.00519.65
8.0.290.0040.00416.75
8.0.280.0050.00417.62
8.0.270.0030.00516.84
8.0.260.0030.00416.78
8.0.250.0050.00416.79
8.0.240.0040.00416.82
8.0.230.0020.00716.80
8.0.220.0060.00416.71
8.0.210.0030.00616.63
8.0.200.0040.00516.73
8.0.190.0060.00416.77
8.0.180.0040.00516.86
8.0.170.0030.00516.84
8.0.160.0040.00616.69
8.0.150.0050.00716.64
8.0.140.0060.00516.67
8.0.130.0060.00614.91
8.0.120.0060.00616.64
8.0.110.0060.00416.71
8.0.100.0050.00516.62
8.0.90.0040.00616.62
8.0.80.0090.00716.76
8.0.70.0060.00616.62
8.0.60.0050.00516.71
8.0.50.0050.00716.67
8.0.30.0090.00816.83
8.0.20.0140.00417.11
8.0.10.0040.00616.79
8.0.00.0100.00916.75
7.4.330.0070.00216.03
7.4.320.0060.00616.56
7.4.300.0080.00416.56
7.4.290.0090.00316.53
7.4.280.0100.00316.57
7.4.270.0080.00316.52
7.4.260.0070.00416.56
7.4.250.0050.00716.54
7.4.240.0050.00716.55
7.4.230.0100.00416.45
7.4.220.0080.00316.61
7.4.210.0060.01216.54
7.4.200.0070.00416.56
7.4.190.0130.00316.52
7.4.180.0000.01416.52
7.4.160.0100.00716.49
7.4.150.0000.01816.52
7.4.140.0120.00717.63
7.4.130.0110.00716.49
7.4.120.0090.01116.52
7.4.110.0110.00616.53
7.4.100.0090.00716.50
7.4.90.0160.00516.62
7.4.80.0080.00817.96
7.4.70.0120.00316.52
7.4.60.0120.00316.57
7.4.50.0090.00916.60
7.4.40.0080.00816.51
7.4.30.0110.00416.52
7.4.20.0160.00016.52
7.4.10.0110.00416.52
7.4.00.0100.00515.86
7.3.330.0050.00414.88
7.3.320.0060.00414.94
7.3.310.0050.00616.38
7.3.300.0110.00216.38
7.3.290.0040.00616.37
7.3.280.0120.00616.36
7.3.270.0120.00316.52
7.3.260.0100.00816.38
7.3.250.0110.00416.52
7.3.240.0100.00716.45
7.3.230.0070.00816.48
7.3.220.0150.00016.52
7.3.210.0090.00816.56
7.3.200.0110.00816.55
7.3.190.0110.00616.39
7.3.180.0100.00716.43
7.3.170.0080.01016.44
7.3.160.0090.00916.43
7.3.150.0130.00316.52
7.3.140.0170.00016.52
7.3.130.0100.00516.52
7.3.120.0070.00915.69
7.3.110.0070.00915.63
7.3.100.0070.00815.64
7.3.90.0070.00815.82
7.3.80.0090.00715.68
7.3.70.0100.00315.77
7.3.60.0120.00015.71
7.3.50.0070.00815.50
7.3.40.0090.00615.73
7.3.30.0020.01015.72
7.3.20.0110.00617.38
7.3.10.0110.00217.30
7.3.00.0400.00416.45
7.2.340.0080.00816.52
7.2.330.0120.00416.66
7.2.320.0130.00516.60
7.2.310.0100.00616.64
7.2.300.0090.00616.61
7.2.290.0140.00116.46
7.2.280.0160.00016.52
7.2.270.0060.01016.52
7.2.260.0120.00416.52
7.2.250.0000.01516.52
7.2.240.0090.00815.74
7.2.230.0070.00715.72
7.2.220.0120.00515.76
7.2.210.0130.00315.89
7.2.200.0060.00615.82
7.2.190.0090.00715.82
7.2.180.0070.00815.80
7.2.170.0060.00815.69
7.2.160.0060.00915.82
7.2.150.0090.00917.60
7.2.140.0060.01117.57
7.2.130.0310.00716.83
7.2.120.0290.00516.77
7.2.110.0210.00416.64
7.2.100.0210.00916.73
7.2.90.0220.00716.88
7.2.80.0280.00516.78
7.2.70.0270.00716.85
7.2.60.0180.00816.69
7.2.50.0280.00316.82
7.2.40.0250.01016.72
7.2.30.0230.00516.83
7.2.20.0180.00516.78
7.2.10.0150.00716.80
7.2.00.0160.00916.75
7.1.330.0090.00716.47
7.1.320.0070.00816.60
7.1.310.0080.00716.65
7.1.300.0050.00716.28
7.1.290.0070.00716.42
7.1.280.0090.00616.50
7.1.270.0130.00316.38
7.1.260.0070.00716.61
7.1.250.0290.00615.63
7.1.240.0120.00917.15
7.1.230.0140.00417.09
7.1.220.0170.00016.90
7.1.210.0200.00317.11
7.1.200.0180.00616.91
7.1.190.0140.00517.00
7.1.180.0140.00517.11
7.1.170.0170.00016.87
7.1.160.0090.00917.02
7.1.150.0130.00617.00
7.1.140.0160.00317.22
7.1.130.0180.00317.08
7.1.120.0150.00417.05
7.1.110.0100.00717.25
7.1.100.0090.00917.02
7.1.90.0200.00017.05
7.1.80.0120.00716.88
7.1.70.0160.00316.74
7.1.60.0140.00416.90
7.1.50.0200.00016.90
7.1.40.0150.00316.93
7.1.30.0150.00317.38
7.1.20.0170.00417.04
7.1.10.0130.00417.07
7.1.00.0150.00416.84
7.0.330.0150.00516.78
7.0.320.0140.00316.52
7.0.310.0140.00616.76
7.0.300.0200.00016.75
7.0.290.0180.00416.64
7.0.280.0120.00616.52
7.0.270.0130.00416.85
7.0.260.0100.01016.70
7.0.250.0170.00016.90
7.0.240.0100.00816.87
7.0.230.0140.00216.83
7.0.220.0090.00916.84
7.0.210.0210.00016.52
7.0.200.0090.00916.72
7.0.190.0160.00416.66
7.0.180.0160.00016.98
7.0.170.0190.00016.85
7.0.160.0160.00316.52
7.0.150.0160.00016.64
7.0.140.0140.00416.74
7.0.130.0080.00816.63
7.0.120.0120.00616.90
7.0.110.0160.00516.87
7.0.100.0180.00316.52
7.0.90.0130.00416.52
7.0.80.0140.00516.52
7.0.70.0120.00616.78
7.0.60.0150.00316.63
7.0.50.0140.00316.88
7.0.40.0180.00016.93
7.0.30.0150.00016.78
7.0.20.0180.00016.53
7.0.10.0130.00416.78
7.0.00.0150.00516.60

preferences:
31.82 ms | 401 KiB | 5 Q