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-1]=$first; } print_r($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)
8.3.60.0090.00918.30
8.3.50.0040.01119.94
8.3.40.0000.01418.55
8.3.30.0140.00318.84
8.3.20.0080.00021.78
8.3.10.0080.00020.10
8.3.00.0060.00319.97
8.2.180.0170.00318.54
8.2.170.0090.00622.96
8.2.160.0030.01021.97
8.2.150.0060.00325.66
8.2.140.0080.00024.66
8.2.130.0070.00017.97
8.2.120.0170.00026.35
8.2.110.0070.00321.05
8.2.100.0040.00717.72
8.2.90.0040.00419.05
8.2.80.0040.00417.97
8.2.70.0030.00817.50
8.2.60.0030.00618.03
8.2.50.0000.00818.10
8.2.40.0050.00220.68
8.2.30.0050.00219.30
8.2.20.0040.00418.20
8.2.10.0000.00718.10
8.2.00.0030.00517.75
8.1.280.0100.01325.92
8.1.270.0070.00024.66
8.1.260.0040.00426.35
8.1.250.0050.00228.09
8.1.240.0040.00421.94
8.1.230.0040.00817.52
8.1.220.0030.00517.79
8.1.210.0030.00618.77
8.1.200.0060.00317.35
8.1.190.0000.00817.22
8.1.180.0050.00518.10
8.1.170.0030.00518.61
8.1.160.0000.00818.82
8.1.150.0020.00522.11
8.1.140.0000.00719.50
8.1.130.0030.00318.93
8.1.120.0080.00017.50
8.1.110.0050.00317.35
8.1.100.0060.00317.46
8.1.90.0000.00717.29
8.1.80.0000.00817.32
8.1.70.0040.00417.40
8.1.60.0040.00417.57
8.1.50.0050.00317.42
8.1.40.0030.00617.56
8.1.30.0020.00517.70
8.1.20.0040.00417.61
8.1.10.0040.00417.52
8.1.00.0070.00417.46
8.0.300.0000.00818.77
8.0.290.0070.00016.75
8.0.280.0030.00318.39
8.0.270.0070.00017.26
8.0.260.0000.00717.27
8.0.250.0030.00316.82
8.0.240.0000.00716.80
8.0.230.0040.00416.80
8.0.220.0000.00816.85
8.0.210.0000.00716.82
8.0.200.0000.00616.91
8.0.190.0030.00516.91
8.0.180.0000.00716.84
8.0.170.0070.00016.79
8.0.160.0030.00416.89
8.0.150.0000.00716.74
8.0.140.0050.00316.83
8.0.130.0000.00513.27
8.0.120.0030.00316.77
8.0.110.0040.00416.77
8.0.100.0060.00316.85
8.0.90.0000.00716.77
8.0.80.0040.01116.88
8.0.70.0050.00216.93
8.0.60.0040.00416.94
8.0.50.0000.00716.82
8.0.30.0100.00917.17
8.0.20.0120.00917.40
8.0.10.0000.00716.79
8.0.00.0040.01716.91
7.4.330.0050.00015.55
7.4.320.0040.00416.51
7.4.300.0060.00016.59
7.4.290.0100.00016.63
7.4.280.0040.00416.48
7.4.270.0040.00416.61
7.4.260.0000.00716.42
7.4.250.0000.00716.48
7.4.240.0040.00416.60
7.4.230.0030.00316.25
7.4.220.0060.01316.68
7.4.210.0080.01016.40
7.4.200.0040.00416.46
7.4.160.0050.01116.59
7.4.150.0090.00917.40
7.4.140.0100.00917.86
7.4.130.0090.00716.62
7.4.120.0110.01116.48
7.4.110.0060.00916.58
7.4.100.0090.00916.55
7.4.90.0060.01016.36
7.4.80.0130.00419.39
7.4.70.0110.00816.48
7.4.60.0150.00316.45
7.4.50.0100.00416.38
7.4.40.0060.01216.33
7.4.30.0120.00416.66
7.4.00.0060.01114.98
7.3.330.0030.00313.22
7.3.320.0000.00613.09
7.3.310.0030.00316.36
7.3.300.0000.00616.33
7.3.290.0070.00016.32
7.3.280.0100.00816.31
7.3.270.0080.00817.40
7.3.260.0080.01216.43
7.3.250.0080.01016.47
7.3.240.0080.01016.55
7.3.230.0030.01316.57
7.3.210.0090.00616.26
7.3.200.0040.01816.32
7.3.190.0080.00816.38
7.3.180.0100.00616.60
7.3.170.0080.00916.44
7.3.160.0100.01316.32
7.3.120.0030.01414.93
7.3.110.0090.00914.83
7.3.100.0080.00814.88
7.3.90.0100.00714.55
7.3.80.0050.00814.93
7.3.70.0000.00914.60
7.3.60.0070.00714.72
7.3.50.0040.00414.84
7.3.40.0050.00514.64
7.3.30.0040.00814.84
7.3.20.0100.00316.71
7.3.10.0080.00016.75
7.3.00.0030.00816.78
7.2.330.0140.00316.50
7.2.320.0120.00616.46
7.2.310.0130.01016.52
7.2.300.0100.01116.64
7.2.290.0070.01016.48
7.2.250.0030.01414.93
7.2.240.0060.01314.92
7.2.230.0080.00314.61
7.2.220.0030.00815.07
7.2.210.0040.01114.65
7.2.200.0070.00314.95
7.2.190.0030.01014.89
7.2.180.0060.00714.86
7.2.170.0000.01415.08
7.1.330.0070.00315.81
7.1.320.0030.00615.65
7.1.310.0060.00615.57
7.1.300.0060.00615.85
7.1.290.0060.00615.56
7.1.280.0090.00315.87
7.1.270.0040.00715.83
7.1.260.0040.00815.86
7.1.70.0000.01017.06
7.1.60.0800.00715.39
7.1.10.0070.06322.19
7.1.00.0070.06022.47
7.0.200.0060.01016.90
7.0.150.0100.05321.82
7.0.140.0030.06021.91
7.0.130.0030.06021.88
7.0.120.0100.05321.91
7.0.110.0030.06321.89
7.0.100.0070.05721.88
7.0.90.0030.08021.99
7.0.80.0070.06021.71
7.0.70.0030.07021.92
7.0.60.0100.05321.82
7.0.50.0100.05322.00
7.0.40.0100.05021.91
7.0.30.0070.05321.93
7.0.20.0070.07021.83
7.0.10.0170.04321.92
7.0.00.0100.05321.92

preferences:
32.6 ms | 400 KiB | 5 Q