3v4l.org

run code in 300+ PHP versions simultaneously
<?php $n = 5; $k = 4; $a = array(1,2,3,4,5); $aSize = count($a);//5 print_r($a); //k left iteration //for($i=1; $i<=$k; $i++) { $first = $a[0]; for($j=1; $j<$aSize; $j++) { $a[$j-1]=$a[$j]; } $a[$aSize]=$first; } var_dump($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)
8.3.60.0100.00718.40
8.3.50.0070.01519.53
8.3.40.0110.00718.84
8.3.30.0060.00918.43
8.3.20.0000.00721.90
8.3.10.0080.00020.34
8.3.00.0000.00819.79
8.2.180.0120.00318.52
8.2.170.0000.01422.96
8.2.160.0100.00322.12
8.2.150.0040.00424.18
8.2.140.0070.00024.66
8.2.130.0080.00018.09
8.2.120.0080.00026.35
8.2.110.0030.00721.12
8.2.100.0060.00617.74
8.2.90.0040.00417.91
8.2.80.0080.00019.66
8.2.70.0040.00417.93
8.2.60.0030.00517.80
8.2.50.0000.00717.93
8.2.40.0080.00018.03
8.2.30.0040.00417.63
8.2.20.0070.00018.04
8.2.10.0030.00518.00
8.2.00.0000.00817.81
8.1.280.0140.00725.92
8.1.270.0050.00322.16
8.1.260.0080.00026.35
8.1.250.0000.00828.09
8.1.240.0060.00322.00
8.1.230.0000.01120.92
8.1.220.0030.00517.74
8.1.210.0000.00918.97
8.1.200.0060.00317.25
8.1.190.0040.00417.23
8.1.180.0030.00618.10
8.1.170.0040.00417.65
8.1.160.0080.00018.82
8.1.150.0000.00822.04
8.1.140.0000.00720.84
8.1.130.0030.00318.89
8.1.120.0000.00717.46
8.1.110.0080.00017.33
8.1.100.0040.00417.35
8.1.90.0030.00317.50
8.1.80.0050.00317.35
8.1.70.0050.00217.48
8.1.60.0030.00617.60
8.1.50.0050.00217.42
8.1.40.0040.00417.52
8.1.30.0050.00217.65
8.1.20.0040.00417.54
8.1.10.0050.00217.56
8.1.00.0060.00617.42
8.0.300.0020.00519.62
8.0.290.0000.00816.63
8.0.280.0000.00717.94
8.0.270.0060.00318.00
8.0.260.0000.00617.07
8.0.250.0000.00616.75
8.0.240.0050.00316.90
8.0.230.0000.00716.88
8.0.220.0000.00716.82
8.0.210.0070.00016.76
8.0.200.0000.00616.89
8.0.190.0060.00316.72
8.0.180.0000.00716.76
8.0.170.0000.00716.80
8.0.160.0040.00416.91
8.0.150.0000.00816.91
8.0.140.0040.00416.86
8.0.130.0000.00513.25
8.0.120.0000.00816.75
8.0.110.0090.00016.78
8.0.100.0080.00016.77
8.0.90.0000.00816.68
8.0.80.0030.01116.85
8.0.70.0040.00416.92
8.0.60.0000.00716.72
8.0.50.0040.00416.86
8.0.30.0060.01317.05
8.0.20.0100.00817.40
8.0.10.0000.00716.88
8.0.00.0170.00716.78
7.4.330.0000.00515.55
7.4.320.0060.00016.58
7.4.300.0000.00616.45
7.4.290.0100.00016.55
7.4.280.0050.00516.64
7.4.270.0030.00316.61
7.4.260.0040.00416.59
7.4.250.0000.00816.61
7.4.240.0040.00416.56
7.4.230.0030.00316.60
7.4.220.0170.00716.57
7.4.210.0090.00816.45
7.4.200.0000.00716.61
7.4.160.0070.00816.34
7.4.150.0120.00617.40
7.4.140.0110.00717.86
7.4.130.0130.00516.52
7.4.120.0110.00716.49
7.4.110.0120.00616.38
7.4.100.0150.00316.45
7.4.90.0180.00016.60
7.4.80.0060.01019.39
7.4.70.0120.00316.44
7.4.60.0180.00316.70
7.4.50.0140.00416.46
7.4.40.0150.00616.43
7.4.30.0030.01716.49
7.4.00.0120.00014.72
7.3.330.0050.00013.11
7.3.320.0000.00613.02
7.3.310.0050.00316.26
7.3.300.0000.00716.24
7.3.290.0000.00716.34
7.3.280.0060.01216.31
7.3.270.0030.01417.40
7.3.260.0080.00916.29
7.3.250.0130.00716.41
7.3.240.0110.01116.43
7.3.230.0100.00716.56
7.3.210.0090.00916.38
7.3.200.0170.00516.34
7.3.190.0100.00616.55
7.3.180.0120.00316.43
7.3.170.0110.00716.22
7.3.160.0130.01016.59
7.2.330.0130.00516.60
7.2.320.0090.01416.50
7.2.310.0060.00916.45
7.2.300.0140.00716.79
7.2.290.0070.01016.71
7.1.70.0040.00717.33
7.1.60.0610.01015.17
7.1.10.0170.06722.22
7.1.00.0030.06722.48
7.0.200.0000.01116.86
7.0.150.0030.06021.82
7.0.140.0030.06321.86
7.0.130.0070.05721.91
7.0.120.0070.05721.93
7.0.110.0030.06321.87
7.0.100.0100.05321.90
7.0.90.0100.05721.86
7.0.80.0070.05721.93
7.0.70.0130.05021.94
7.0.60.0070.06321.77
7.0.50.0170.04721.95
7.0.40.0030.05721.94
7.0.30.0070.05321.91
7.0.20.0070.05321.92
7.0.10.0030.06021.94
7.0.00.0030.06021.92

preferences:
46.19 ms | 400 KiB | 5 Q