3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [1, 2, 3, 4, 3, 2, 1]; $j = count($a) - 1; $output = []; for($i = 0; $i > count($a); $i++) { print_r('ddd') ; // if ($a[$i] !== $a[$j]) { // $output = $a[$i]; // } $j--; } print_r($output);

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)
8.3.60.0090.00618.55
8.3.50.0140.00420.30
8.3.40.0040.01119.59
8.3.30.0070.00718.72
8.3.20.0080.00024.18
8.3.10.0000.00724.66
8.3.00.0040.00426.16
8.2.180.0300.01225.92
8.2.170.0150.00019.02
8.2.160.0140.00022.96
8.2.150.0030.00625.66
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0070.00026.16
8.2.110.0030.00620.39
8.2.100.0080.00418.09
8.2.90.0030.00517.46
8.2.80.0030.00618.79
8.2.70.0050.00317.50
8.2.60.0000.00917.50
8.2.50.0080.00018.04
8.2.40.0040.00418.09
8.2.30.0030.00517.98
8.2.20.0000.00719.12
8.2.10.0000.00818.02
8.2.00.0050.00219.30
8.1.280.0000.01525.92
8.1.270.0000.00824.66
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0100.00019.24
8.1.230.0090.00320.84
8.1.220.0060.00318.70
8.1.210.0050.00318.77
8.1.200.0000.00817.35
8.1.190.0040.00417.35
8.1.180.0000.00818.10
8.1.170.0030.00617.62
8.1.160.0050.00520.75
8.1.150.0000.00718.77
8.1.140.0000.00817.43
8.1.130.0030.00518.92
8.1.120.0090.00017.48
8.1.110.0000.00717.49
8.1.100.0070.00017.50
8.1.90.0050.00317.44
8.1.80.0050.01017.43
8.1.70.0100.00517.34
8.1.60.0140.00417.55
8.1.50.0150.00417.53
8.1.40.0110.00717.48
8.1.30.0120.00617.69
8.1.20.0040.01317.59
8.1.10.0120.00517.30
8.1.00.0180.00017.24
8.0.300.0000.00818.77
8.0.290.0030.00616.75
8.0.280.0000.00818.30
8.0.270.0030.00316.63
8.0.260.0040.00418.44
8.0.250.0070.00016.76
8.0.240.0040.00416.78
8.0.230.0000.00716.89
8.0.220.0140.00016.73
8.0.210.0050.01016.82
8.0.200.0120.00316.80
8.0.190.0120.00216.66
8.0.180.0110.00416.79
8.0.170.0120.00416.90
8.0.160.0090.00516.77
8.0.150.0150.00016.84
8.0.140.0110.00416.71
8.0.130.0110.00416.79
8.0.120.0030.01216.73
8.0.110.0090.00616.89
8.0.100.0160.00016.72
8.0.90.0110.00316.77
8.0.80.0070.00316.86
8.0.70.0130.00016.75
8.0.60.0000.01016.82
8.0.50.0060.00616.81
8.0.30.0110.00416.69
8.0.20.0040.00816.74
8.0.10.0100.00316.86
7.4.330.0030.00315.55
7.4.320.0040.00416.65
7.4.300.0120.00416.50
7.4.290.0080.00516.51
7.4.280.0170.00016.46
7.4.270.0090.00616.36
7.4.260.0100.00716.60
7.4.250.0140.00316.39
7.4.240.0060.00616.33
7.4.230.0040.00716.27
7.4.220.0100.00316.52
7.4.210.0060.00316.48
7.4.200.0050.00516.58
7.4.190.0030.00916.63
7.4.180.0130.00016.64
7.4.160.0120.00016.56
7.4.150.0040.00716.59
7.4.140.0070.00516.44
7.4.130.0060.00616.30
7.4.120.0120.00016.46
7.4.110.0080.00316.18
7.4.100.0050.00516.49
7.4.90.0050.00516.43
7.4.80.0110.00016.20
7.4.70.0090.00016.28
7.4.60.0050.00516.26
7.4.50.0030.00716.31
7.4.40.0020.00716.26
7.4.30.0030.00716.43
7.4.20.0050.00516.34
7.4.10.0000.00815.93
7.4.00.0090.00016.40

preferences:
62.94 ms | 400 KiB | 5 Q