3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [1, 2, 3, 4, 5, 6]; for ($i = 0; $i < count($arr); $i++) { unset($arr[$i - 1]); var_dump($arr[$i]); } echo "===", PHP_EOL; $arr = [1, 2, 3, 4, 5, 6]; foreach ($arr as $i => $v) { unset($arr[$i - 1]); var_dump($arr[$i]); }

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)
8.4.130.0120.00618.43
8.4.120.0130.00719.27
8.4.110.0030.00617.70
8.4.100.0140.00717.63
8.4.90.0130.00720.45
8.4.80.0120.00818.86
8.4.70.0100.00918.90
8.4.60.0130.00720.37
8.4.50.0080.01118.89
8.4.40.0040.01617.48
8.4.30.0090.00622.13
8.4.20.0170.00317.70
8.4.10.0090.00019.39
8.3.260.0130.00516.79
8.3.250.0100.00916.85
8.3.240.0110.00816.91
8.3.230.0150.00416.77
8.3.220.0120.00618.80
8.3.210.0070.00916.82
8.3.200.0060.00316.54
8.3.190.0060.00317.09
8.3.180.0090.00818.95
8.3.170.0000.01817.39
8.3.160.0160.00318.67
8.3.150.0110.00720.87
8.3.140.0070.01120.59
8.3.130.0040.00418.43
8.3.120.0070.01119.04
8.3.110.0150.00616.55
8.3.100.0100.00016.63
8.3.90.0080.00018.34
8.3.80.0060.00318.56
8.3.70.0070.01516.63
8.3.60.0090.01318.43
8.3.50.0080.01516.47
8.3.40.0150.00621.85
8.3.30.0070.00718.96
8.3.20.0080.00024.18
8.3.10.0000.00724.66
8.3.00.0050.00326.16
8.2.290.0100.01016.41
8.2.280.0070.00918.29
8.2.270.0090.00916.52
8.2.260.0070.01116.90
8.2.250.0050.00516.54
8.2.240.0040.00817.01
8.2.230.0060.00320.94
8.2.220.0090.00624.06
8.2.210.0120.00626.77
8.2.200.0050.00516.50
8.2.190.0110.01116.58
8.2.180.0160.00616.38
8.2.170.0040.01618.91
8.2.160.0110.00422.96
8.2.150.0050.00325.66
8.2.140.0080.00024.66
8.2.130.0050.00326.16
8.2.120.0000.00821.00
8.2.110.0000.00919.19
8.2.100.0090.00418.44
8.2.90.0200.01218.44
8.2.80.0230.00918.44
8.2.70.0230.00718.44
8.2.60.0270.00418.44
8.2.50.0300.00018.44
8.2.40.0210.00218.44
8.2.30.0280.00318.44
8.2.20.0100.00319.29
8.2.10.0170.01018.44
8.2.00.0260.00018.44
8.1.330.0120.00815.79
8.1.320.0110.01017.91
8.1.310.0120.00616.70
8.1.300.0130.00619.52
8.1.290.0070.00318.88
8.1.280.0080.00625.92
8.1.270.0070.00024.66
8.1.260.0000.00726.35
8.1.250.0000.00828.09
8.1.240.0100.00019.59
8.1.230.0120.00818.91
8.1.220.0280.00018.44
8.1.210.0230.00718.44
8.1.200.0190.00918.44
8.1.190.0260.00518.44
8.1.180.0220.00618.44
8.1.170.0200.00718.44
8.1.160.0210.00718.44
8.1.150.0210.00518.44
8.1.140.0230.00418.44
8.1.130.0220.00518.44
8.1.120.0230.00318.44
8.1.110.0210.00618.44
8.1.100.0290.00318.44
8.1.90.0240.00518.44
8.1.80.0230.00418.44
8.1.70.0230.00418.44
8.1.60.0110.01618.44
8.1.50.0270.00018.44
8.1.40.0200.00818.44
8.1.30.0230.01118.44
8.1.20.0240.00818.44
8.1.10.0330.00018.44
8.1.00.0250.00618.44
8.0.300.0250.00418.44
8.0.290.0270.00318.44
8.0.280.0280.00018.44
8.0.270.0250.00218.44
8.0.260.0250.00418.44
8.0.250.0240.00418.44
8.0.240.0210.00718.44
8.0.230.0210.00518.44
8.0.220.0190.00818.44
8.0.210.0240.00318.44
8.0.200.0210.00718.44
8.0.190.0220.00518.44
8.0.180.0290.00218.44
8.0.170.0300.00018.44
8.0.160.0200.00718.44
8.0.150.0240.00418.44
8.0.140.0280.00018.44
8.0.130.0240.00518.44
8.0.120.0280.00018.44
8.0.110.0260.00018.44
8.0.100.0250.00318.44
8.0.90.0230.00818.44
8.0.80.0290.00318.44
8.0.70.0190.00718.44
8.0.60.0210.00318.44
8.0.50.0200.00318.44
8.0.30.0240.00218.44
8.0.20.0160.01118.44
8.0.10.0240.00318.44

preferences:
34.55 ms | 403 KiB | 5 Q