3v4l.org

run code in 300+ PHP versions simultaneously
<?php bcscale(100); for ($n = 0; $n < 100; $n++) { $a = ((2.0**(1.0/12.0))**$n) * 440.0; $b = ((2.0**($n/12.0))) * 440.0; $c = $a - $b; echo "$c\n"; } for ($n = 0; $n < 100; $n++) { $a = bcmul(bcpow(bcpow('2.0', bcdiv('1.0', '12.0')), "$n"), '440.0'); $b = bcmul(bcpow('2.0', bcdiv("$n", '12.0')), '440.0'); $c = bcsub($a, $b); echo "$c\n"; }

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)
8.4.140.0120.01018.27
8.4.130.0110.01019.69
8.4.120.0070.00720.55
8.4.110.0040.00819.10
8.4.100.0110.00918.76
8.4.90.0100.01020.87
8.4.80.0120.00519.04
8.4.70.0090.01020.83
8.4.60.0150.00622.72
8.4.50.0150.00522.70
8.4.40.0130.00718.93
8.4.30.0130.00618.73
8.4.20.0070.00419.72
8.4.10.0030.00619.66
8.3.270.0140.00717.04
8.3.260.0090.01217.02
8.3.250.0120.00817.53
8.3.240.0090.00317.15
8.3.230.0140.00716.77
8.3.220.0090.00919.28
8.3.210.0140.00617.00
8.3.200.0090.00116.97
8.3.190.0130.00617.13
8.3.180.0080.01118.80
8.3.170.0090.00917.30
8.3.160.0090.00919.25
8.3.150.0040.01417.07
8.3.140.0040.00416.90
8.3.130.0090.00018.47
8.3.120.0030.01618.97
8.3.110.0000.00816.86
8.3.100.0120.00318.82
8.3.90.0030.00526.77
8.3.80.0060.00318.80
8.3.70.0060.01616.88
8.3.60.0060.00918.67
8.3.50.0160.00016.92
8.3.40.0130.01020.14
8.3.30.0060.01619.29
8.3.20.0100.01321.77
8.3.10.0150.00622.15
8.3.00.0220.00019.21
8.2.290.0100.00820.89
8.2.280.0100.00920.44
8.2.270.0100.00017.44
8.2.260.0050.01017.46
8.2.250.0040.00419.06
8.2.240.0070.00417.05
8.2.230.0060.00320.94
8.2.220.0000.00924.06
8.2.210.0000.01926.77
8.2.200.0030.00616.88
8.2.190.0140.00716.88
8.2.180.0160.00316.88
8.2.170.0130.00719.24
8.2.160.0140.00420.58
8.2.150.0090.00619.44
8.2.140.0030.01220.76
8.2.130.0140.00420.60
8.2.120.0070.00719.49
8.2.110.0160.00319.61
8.2.100.0110.00319.50
8.2.90.0110.00419.09
8.2.80.0140.00419.51
8.2.70.0120.00318.80
8.2.60.0080.00819.35
8.2.50.0140.00019.66
8.2.40.0080.00818.95
8.2.30.0150.00719.14
8.2.20.0090.01318.95
8.2.10.0100.00619.07
8.2.00.0090.00618.96
8.1.330.0070.01222.34
8.1.320.0120.00718.13
8.1.310.0090.00918.71
8.1.300.0100.00717.98
8.1.290.0030.00630.84
8.1.280.0080.00825.92
8.1.270.0140.00722.34
8.1.260.0060.01622.37
8.1.250.0090.00622.39
8.1.240.0080.00818.92
8.1.230.0040.01118.77
8.1.220.0180.00419.07
8.1.210.0130.00918.94
8.1.200.0150.00018.85
8.1.190.0040.01219.01
8.1.180.0030.01218.71
8.1.170.0070.00719.16
8.1.160.0120.00918.63
8.1.150.0140.00719.06
8.1.140.0090.00618.98
8.1.130.0130.00318.77
8.1.120.0110.01118.71
8.1.110.0150.00618.52
8.1.100.0160.00619.90
8.1.90.0130.01018.65
8.1.80.0170.00720.25
8.1.70.0150.00619.00
8.1.60.0130.00718.80
8.1.50.0190.00618.98
8.1.40.0130.00718.92
8.1.30.0070.01319.23
8.1.20.0190.00020.23
8.1.10.0130.00618.88
8.1.00.0070.01118.92

preferences:
66.66 ms | 403 KiB | 5 Q