3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo sprintf("%x",getCrc16("\x08\x02\x00\x00\x01\x43\xEF\x3A", 0, 0xA001, 0)).'<br />'; function getCrc16($buffer, $offset, $polynom, $preset) { $preset &= 0xFFFF; $polynom &= 0xFFFF; $bufLen = strlen($buffer); $crc = $preset; for($i = 0; $i < $bufLen; $i++) { $data = $buffer[($i + $offset)%$bufLen] & 0xFF; $crc ^= $data; for ($j = 0; $j < 8; $j++) { if (($crc & 0x0001) != 0) { $crc = ($crc >> 1) ^ $polynom; } else { $crc = $crc >> 1; } } } return $crc & 0xFFFF; }

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)
8.3.60.0110.00718.55
8.3.50.0030.01522.05
8.3.40.0110.00418.94
8.3.30.0140.00420.17
8.3.20.0040.00420.16
8.3.10.0040.00422.06
8.3.00.0040.00422.57
8.2.180.0060.00916.63
8.2.170.0080.00822.96
8.2.160.0100.00322.07
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0120.00326.16
8.2.120.0050.00319.91
8.2.110.0100.00020.92
8.2.100.0040.00818.03
8.2.90.0040.00420.61
8.2.80.0030.00517.97
8.2.70.0000.00817.63
8.2.60.0000.01117.93
8.2.50.0050.00518.07
8.2.40.0040.00418.34
8.2.30.0050.00218.13
8.2.20.0040.00417.91
8.2.10.0040.00417.84
8.2.00.0000.00717.74
8.1.280.0100.00725.92
8.1.270.0050.00324.66
8.1.260.0090.00026.35
8.1.250.0000.00728.09
8.1.240.0000.00922.51
8.1.230.0060.00620.90
8.1.220.0030.00517.74
8.1.210.0030.00618.96
8.1.200.0050.00617.36
8.1.190.0080.00017.53
8.1.180.0060.00319.01
8.1.170.0040.00418.55
8.1.160.0000.00722.20
8.1.150.0040.00418.62
8.1.140.0040.00417.40
8.1.130.0000.00717.91
8.1.120.0030.00717.50
8.1.110.0040.00417.39
8.1.100.0080.00017.43
8.1.90.0000.00717.31
8.1.80.0040.00417.40
8.1.70.0000.00717.32
8.1.60.0040.00417.61
8.1.50.0040.00417.56
8.1.40.0000.00717.42
8.1.30.0000.00817.59
8.1.20.0030.00517.58
8.1.10.0040.00417.66
8.1.00.0030.00517.52
8.0.300.0030.00520.04
8.0.290.0030.00317.18
8.0.280.0030.00318.41
8.0.270.0000.00717.23
8.0.260.0030.00316.91
8.0.250.0000.00717.01
8.0.240.0080.00017.04
8.0.230.0000.00717.05
8.0.220.0050.00317.01
8.0.210.0070.00016.91
8.0.200.0040.00417.01
8.0.190.0040.00416.99
8.0.180.0050.00216.93
8.0.170.0000.00716.93
8.0.160.0080.00016.99
8.0.150.0080.00016.84
8.0.140.0000.00816.92
8.0.130.0000.00613.51
8.0.120.0040.00416.94
8.0.110.0040.00417.04
8.0.100.0000.00916.84
8.0.90.0000.00716.87
8.0.80.0070.00716.98
8.0.70.0050.00217.09
8.0.60.0080.00016.93
8.0.50.0050.00216.83
8.0.30.0030.01517.03
8.0.20.0090.01217.40
8.0.10.0040.00417.16
8.0.00.0100.00916.72
7.4.330.0050.00015.07
7.4.320.0000.00716.61
7.4.300.0030.00316.63
7.4.290.0000.00716.55
7.4.280.0030.00316.41
7.4.270.0030.00316.51
7.4.260.0030.00313.32
7.4.250.0000.00716.55
7.4.240.0030.00316.54
7.4.230.0000.00716.45
7.4.220.0130.00916.67
7.4.210.0100.00716.55
7.4.200.0080.00016.61
7.4.190.0070.00016.68
7.4.160.0150.00416.64
7.4.150.0190.00317.40
7.4.140.0150.00717.86
7.4.130.0090.00816.61
7.4.120.0100.00716.62
7.4.110.0030.01616.57
7.4.100.0100.00716.47
7.4.90.0150.00416.47
7.4.80.0040.01219.39
7.4.70.0100.00616.53
7.4.60.0080.00816.69
7.4.50.0060.00316.55
7.4.40.0000.01622.77
7.4.30.0000.01516.61
7.4.00.0070.00715.06
7.3.330.0060.00013.45
7.3.320.0000.00513.51
7.3.310.0040.00316.54
7.3.300.0070.00016.31
7.3.290.0070.00716.45
7.3.280.0080.00616.41
7.3.270.0100.00717.40
7.3.260.0090.00916.49
7.3.250.0070.00916.46
7.3.240.0120.00916.50
7.3.230.0120.00416.61
7.3.210.0080.00816.50
7.3.200.0040.01419.39
7.3.190.0140.00416.51
7.3.180.0180.00316.54
7.3.170.0050.01216.60
7.3.160.0110.00616.42
7.3.120.0000.01514.71
7.3.00.0040.01116.63
7.2.330.0110.00816.66
7.2.320.0100.00716.63
7.2.310.0130.00316.54
7.2.300.0130.00416.79
7.2.290.0120.01216.75
7.2.130.0100.00316.99
7.2.120.0030.00616.84
7.2.110.0060.00316.76
7.2.100.0080.00416.67
7.2.90.0100.00716.81
7.2.80.0070.00716.52
7.2.70.0040.00416.51
7.2.60.0030.00816.76
7.2.50.0040.01116.57
7.2.40.0090.00316.61
7.2.30.0000.00916.93
7.2.20.0000.01316.88
7.2.10.0070.00716.95
7.2.00.0020.01118.35
7.1.250.0030.00815.78
7.1.240.0000.01215.83
7.1.230.0040.00715.74
7.1.220.0060.00615.68
7.1.210.0030.00915.57
7.1.200.0060.00715.64
7.1.190.0060.00615.73
7.1.180.0000.01215.84
7.1.170.0040.00715.80
7.1.160.0070.00715.65
7.1.150.0030.00915.94
7.1.140.0030.00615.69
7.1.130.0040.00415.79
7.1.120.0070.01015.91
7.1.110.0070.00415.90
7.1.100.0060.00816.96
7.1.90.0150.00015.65
7.1.80.0090.00615.93
7.1.70.0050.00816.38
7.1.60.0030.01317.53
7.1.50.0050.00716.44
7.1.40.0100.00715.82
7.1.30.0110.00315.43
7.1.20.0060.00315.61
7.1.10.0030.01015.52
7.1.00.0110.03719.04
7.0.330.0080.00315.29
7.0.320.0060.00615.18
7.0.310.0000.00815.50
7.0.300.0070.00714.97
7.0.290.0030.00715.12
7.0.280.0040.00815.07
7.0.270.0060.00615.32
7.0.260.0070.00715.04
7.0.250.0060.00615.55
7.0.240.0130.00015.41
7.0.230.0030.01315.49
7.0.220.0100.00015.58
7.0.210.0030.01015.42
7.0.200.0020.01016.11
7.0.190.0140.00315.46
7.0.180.0050.00515.42
7.0.170.0050.00515.37
7.0.160.0100.00615.21
7.0.150.0040.00815.54
7.0.140.0060.03618.62
7.0.130.0080.00815.52
7.0.120.0000.01215.15
7.0.110.0030.00915.23
7.0.100.0030.01015.28
7.0.90.0070.00715.40
7.0.80.0030.01015.34
7.0.70.0100.00715.70
7.0.60.0130.03717.59
7.0.50.0040.02516.61
7.0.40.0070.02816.77
7.0.30.0330.03016.93
7.0.20.0120.03716.84
7.0.10.0070.04016.74
7.0.00.0060.02816.83
5.6.380.0110.00614.21
5.6.370.0040.00714.20
5.6.360.0090.00614.09
5.6.350.0120.00414.33
5.6.340.0060.00614.17
5.6.330.0110.00314.28
5.6.320.0000.01013.82
5.6.310.0060.00914.28
5.6.300.0090.00314.14
5.6.290.0060.00614.20
5.6.280.0080.03817.78
5.6.270.0030.01214.21
5.6.260.0060.01114.21
5.6.250.0080.00513.98
5.6.240.0020.01314.32
5.6.230.0000.01014.19
5.6.220.0100.00513.89
5.6.210.0150.03817.50
5.6.200.0060.04516.21
5.6.190.0050.04517.38
5.6.180.0130.04617.44
5.6.170.0220.03717.45
5.6.160.0080.04217.37
5.6.150.0080.04116.16
5.6.140.0040.03016.23
5.6.130.0080.03816.40
5.6.120.0120.04217.59
5.6.110.0080.04317.60
5.6.100.0020.04317.58
5.6.90.0060.02117.49
5.6.80.0060.04017.38
5.6.70.0030.01014.15
5.6.60.0090.00014.00
5.6.50.0090.00614.04
5.6.40.0030.00914.24
5.6.30.0030.00714.09
5.6.20.0100.00714.30
5.6.10.0160.00014.25
5.6.00.0060.00914.05
5.5.380.0070.00411.00
5.5.370.0080.00011.41
5.5.360.0030.00611.17
5.5.350.0130.03915.65
5.5.340.0090.04214.65
5.5.330.0060.02515.74
5.5.320.0120.03415.77
5.5.310.0160.02515.73
5.5.300.0070.02014.52
5.5.290.0050.04214.62
5.5.280.0040.02815.97
5.5.270.0070.03215.83
5.5.260.0000.05016.02
5.5.250.0150.03515.89
5.5.240.0120.02615.72
5.5.230.0060.00011.02
5.5.220.0030.00311.09
5.5.210.0000.00610.90
5.5.200.0090.00011.13
5.5.190.0030.00611.06
5.5.180.0070.00310.90
5.5.170.0080.00011.25
5.5.160.0050.00510.96
5.5.150.0000.00610.90
5.5.140.0000.01311.19
5.5.130.0030.00911.14
5.5.120.0070.00411.13
5.5.110.0050.00310.90
5.5.100.0060.00310.90
5.5.90.0030.00611.04
5.5.80.0070.00710.92
5.5.70.0070.00311.10
5.5.60.0040.00411.32
5.5.50.0080.00311.20
5.5.40.0000.00610.90
5.5.30.0000.00910.90
5.5.20.0000.00911.39
5.5.10.0060.00611.18
5.5.00.0060.00311.04
5.4.450.0410.03115.23
5.4.440.0680.02815.44
5.4.430.0620.03515.24
5.4.420.0510.02815.36
5.4.410.0520.02715.29
5.4.400.0130.03515.04
5.4.390.0180.03214.91
5.4.380.0160.02714.81
5.4.370.0100.02814.79
5.4.360.0130.02514.73
5.4.350.0030.02411.67
5.4.340.0060.02411.72
5.4.330.0030.00611.04
5.4.320.0040.02411.72
5.4.310.0060.02511.73
5.4.300.0040.02711.70
5.4.290.0050.02111.70
5.4.280.0060.02111.65
5.4.270.0070.01911.65
5.4.260.0100.01811.66
5.4.250.0060.02411.65
5.4.240.0020.03214.81
5.4.230.0050.03015.04
5.4.220.0060.03514.94
5.4.210.0080.02814.96
5.4.200.0050.03014.96
5.4.190.0050.03514.76
5.4.180.0000.04214.89
5.4.170.0090.03514.94
5.4.160.0050.02614.91
5.4.150.0030.03214.92
5.4.140.0040.03713.69
5.4.130.0030.03013.64
5.4.120.0030.03913.78
5.4.110.0080.02513.71
5.4.100.0050.03513.59
5.4.90.0050.03013.91
5.4.80.0060.02613.74
5.4.70.0070.02513.76
5.4.60.0050.02513.77
5.4.50.0050.03013.72
5.4.40.0020.03213.69
5.4.30.0050.02713.70
5.4.20.0020.03913.67
5.4.10.0060.02613.69
5.4.00.0030.03313.33
5.3.290.0040.02511.85
5.3.280.0030.02812.70
5.3.270.0030.03912.74
5.3.260.0050.04312.82
5.3.250.0030.03112.79
5.3.240.0060.02912.76
5.3.230.0050.03012.79
5.3.220.0070.03412.80
5.3.210.0030.04212.72
5.3.200.0050.02712.74
5.3.190.0120.02712.74
5.3.180.0090.02812.81
5.3.170.0060.02512.76
5.3.160.0060.02612.72
5.3.150.0030.03212.77
5.3.140.0030.03112.84
5.3.130.0060.03312.75
5.3.120.0080.02612.73
5.3.110.0050.03012.71
5.3.100.0110.02212.51
5.3.90.0070.02712.46
5.3.80.0070.02712.45
5.3.70.0070.02712.51
5.3.60.0070.02512.46
5.3.50.0100.02912.46
5.3.40.0070.03112.47
5.3.30.0080.02512.41
5.3.20.0080.03312.32
5.3.10.0120.02712.20
5.3.00.0050.03812.31
5.2.170.0050.02311.01
5.2.160.0050.02211.10
5.2.150.0060.02811.01
5.2.140.0040.03111.13
5.2.130.0030.02811.01
5.2.120.0020.02510.99
5.2.110.0050.02511.03
5.2.100.0000.02411.08
5.2.90.0040.02211.04
5.2.80.0060.02511.04
5.2.70.0060.03110.97
5.2.60.0090.02011.02
5.2.50.0060.02311.00
5.2.40.0050.02010.99
5.2.30.0010.03310.98
5.2.20.0070.02010.97
5.2.10.0140.01910.87
5.2.00.0040.03110.85
5.1.60.0040.01910.44
5.1.50.0060.01910.55
5.1.40.0030.02710.35
5.1.30.0100.02210.60
5.1.20.0050.02210.66
5.1.10.0050.02510.53
5.1.00.0070.01710.48
5.0.50.0070.0139.73
5.0.40.0030.0159.64
5.0.30.0090.0179.58
5.0.20.0050.0219.67
5.0.10.0030.0159.46
5.0.00.0030.0239.57
4.4.90.0040.0158.58
4.4.80.0020.0138.58
4.4.70.0000.0188.58
4.4.60.0050.0148.58
4.4.50.0000.0208.58
4.4.40.0020.0208.58
4.4.30.0020.0198.58
4.4.20.0050.0148.58
4.4.10.0030.0128.58
4.4.00.0040.0238.58
4.3.110.0020.0198.58
4.3.100.0030.0158.58
4.3.90.0020.0148.58
4.3.80.0020.0188.58
4.3.70.0030.0118.58
4.3.60.0030.0118.57
4.3.50.0030.0118.57
4.3.40.0040.0208.57
4.3.30.0030.0138.57
4.3.20.0010.0138.57
4.3.10.0060.0138.57
4.3.00.0050.0158.99

preferences:
35.87 ms | 401 KiB | 5 Q