3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare(strict_types = 1); function readUnsignedVarLong(string $buffer, int &$offset) : int{ $value = 0; for($i = 0; $i <= 63; $i += 7){ if(!isset($buffer[$offset])){ throw new Exception("No bytes left in buffer"); } $b = ord($buffer[$offset++]); $value |= (($b & 0x7f) << $i); if(($b & 0x80) === 0){ return $value; } } throw new Exception("VarLong did not terminate after 10 bytes!"); } $a = 0; var_dump(readUnsignedVarLong(str_repeat(chr(255), 9) . chr(0x80 << 1), $a), PHP_INT_MAX);

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)
8.5.10.0110.00620.25
8.5.00.0100.01120.14
8.4.150.0020.00114.05
8.4.140.0150.00617.81
8.4.130.0080.01218.72
8.4.120.0120.00524.09
8.4.110.0110.00919.07
8.4.100.0150.00718.92
8.4.90.0130.00720.75
8.4.80.0090.01118.93
8.4.70.0060.00218.81
8.4.60.0140.00718.96
8.4.50.0100.00918.66
8.4.40.0170.00317.90
8.4.30.0000.01820.42
8.4.20.0090.00924.15
8.4.10.0080.00023.73
8.3.280.0140.00718.50
8.3.270.0070.01216.67
8.3.260.0090.01116.64
8.3.250.0030.00518.68
8.3.240.0030.00717.06
8.3.230.0120.00716.66
8.3.220.0100.00819.17
8.3.210.0040.00418.51
8.3.200.0050.00416.68
8.3.190.0080.01117.25
8.3.180.0040.00418.88
8.3.170.0060.01318.70
8.3.160.0040.00417.34
8.3.150.0190.00016.77
8.3.140.0150.00417.11
8.3.130.0100.01018.17
8.3.120.0030.00920.59
8.3.110.0000.00920.94
8.3.100.0050.00324.06
8.3.90.0080.00026.77
8.3.80.0060.00318.55
8.3.70.0110.00718.55
8.3.60.0100.01016.63
8.3.50.0100.01016.47
8.3.40.0000.01420.10
8.3.30.0090.00618.67
8.3.20.0040.00424.18
8.3.10.0090.00024.66
8.3.00.0080.00026.16
8.2.290.0100.00820.53
8.2.280.0130.00520.16
8.2.270.0060.01216.39
8.2.260.0140.00416.60
8.2.250.0070.00718.39
8.2.240.0040.00417.17
8.2.230.0080.00422.58
8.2.220.0030.00637.54
8.2.210.0080.00026.77
8.2.200.0090.00018.29
8.2.190.0180.00716.75
8.2.180.0100.01016.75
8.2.170.0180.00418.88
8.2.160.0070.00722.96
8.2.150.0000.00725.66
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0050.00326.16
8.2.110.0110.00619.32
8.2.100.0090.00317.84
8.2.90.0000.00817.88
8.2.80.0040.00418.78
8.2.70.0040.00417.63
8.2.60.0000.00817.50
8.2.50.0080.00017.55
8.2.40.0110.00617.62
8.2.30.0140.00317.62
8.2.20.0080.00817.62
8.2.10.0140.00317.62
8.2.00.0100.00517.62
8.1.330.0090.01021.83
8.1.320.0100.01016.30
8.1.310.0090.00618.18
8.1.300.0150.00018.26
8.1.290.0030.00730.84
8.1.280.0110.00725.92
8.1.270.0030.00624.66
8.1.260.0040.01526.35
8.1.250.0040.00428.09
8.1.240.0060.00319.32
8.1.230.0070.00420.95
8.1.220.0000.00818.55
8.1.210.0000.00818.77
8.1.200.0040.00417.51
8.1.190.0000.00917.23
8.1.180.0050.00318.10
8.1.170.0150.00617.62
8.1.160.0080.00817.62
8.1.150.0120.00617.62
8.1.140.0090.00917.62
8.1.130.0160.00317.62
8.1.120.0070.01117.62
8.1.110.0130.00417.62
8.1.100.0040.01417.62
8.1.90.0170.00017.62
8.1.80.0080.00817.62
8.1.70.0140.00317.62
8.1.60.0130.00517.62
8.1.50.0120.00417.62
8.1.40.0130.00317.62
8.1.30.0120.00617.62
8.1.20.0140.00317.62
8.1.10.0170.00017.62
8.1.00.0140.00717.62
8.0.300.0070.00018.77
8.0.290.0080.00016.75
8.0.280.0100.00717.62
8.0.270.0090.00917.62
8.0.260.0110.00517.62
8.0.250.0170.00017.62
8.0.240.0160.00017.62
8.0.230.0110.00717.62
8.0.220.0130.00317.62
8.0.210.0130.00317.62
8.0.200.0100.00717.62
8.0.190.0130.00617.62
8.0.180.0120.00417.62
8.0.170.0080.00817.62
8.0.160.0100.00617.62
8.0.150.0110.00617.62
8.0.140.0130.00317.62
8.0.130.0120.00317.62
8.0.120.0080.00817.62
8.0.110.0100.00717.62
8.0.100.0100.00517.62
8.0.90.0160.00017.62
8.0.80.0100.00517.62
8.0.70.0130.00317.62
8.0.60.0170.00017.62
8.0.50.0130.00317.62
8.0.30.0100.00717.62
8.0.20.0160.00017.62
8.0.10.0110.00617.62

preferences:
38.85 ms | 403 KiB | 5 Q