3v4l.org

run code in 300+ PHP versions simultaneously
<?php /** * @return array */ function crc64Table() { $crc64tab = []; // ECMA polynomial $poly64rev = (0xC96C5795 << 32) | 0xD7870F42; echo sprintf("%x", $poly64rev) . PHP_EOL; // ISO polynomial // $poly64rev = (0xD8 << 56); for ($i = 0; $i < 256; $i++) { for ($part = $i, $bit = 0; $bit < 8; $bit++) { if ($part & 1) { $part = (($part >> 1) & ~(0x8 << 60)) ^ $poly64rev; } else { $part = ($part >> 1) & ~(0x8 << 60); } } $crc64tab[$i] = $part; } return $crc64tab; } /** * @param string $string * @param string $format * @return mixed * * Formats: * crc64('php'); // afe4e823e7cef190 * crc64('php', '0x%x'); // 0xafe4e823e7cef190 * crc64('php', '0x%X'); // 0xAFE4E823E7CEF190 * crc64('php', '%d'); // -5772233581471534704 signed int * crc64('php', '%u'); // 12674510492238016912 unsigned int */ function crc64($string, $format = '%x') { static $crc64tab; if ($crc64tab === null) { $crc64tab = crc64Table(); } printf("%u", $crc64tab[1]); echo PHP_EOL; $crc = 0; for ($i = 0; $i < strlen($string); $i++) { //$crc = $crc64tab[($crc ^ ord($string[$i])) & 0xff] ^ (($crc >> 8) & ~(0xff << 56)); $crc = $crc64tab[$crc^ord($string[$i]) & 0xff] ^ ($crc >> 8) & ~(0xff << 56); } return sprintf($format, $crc); } echo crc64("123456", "%u");

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)
8.3.60.0080.00816.75
8.3.50.0130.01018.25
8.3.40.0070.00718.58
8.3.30.0070.00718.96
8.3.20.0040.00418.95
8.3.10.0000.00821.74
8.3.00.0050.00321.96
8.2.180.0170.00316.63
8.2.170.0150.00022.96
8.2.160.0070.00722.25
8.2.150.0050.00324.18
8.2.140.0030.00624.66
8.2.130.0080.00019.89
8.2.120.0080.00026.35
8.2.110.0040.00419.10
8.2.100.0090.00317.84
8.2.90.0040.00417.97
8.2.80.0040.00418.28
8.2.70.0000.00817.75
8.2.60.0000.00917.75
8.2.50.0000.00817.75
8.2.40.0060.00320.60
8.2.30.0030.00519.23
8.2.20.0040.00418.19
8.2.10.0040.00418.20
8.2.00.0050.00217.82
8.1.280.0090.00925.92
8.1.270.0050.00223.92
8.1.260.0050.00228.09
8.1.250.0040.00428.09
8.1.240.0090.00022.51
8.1.230.0030.00920.88
8.1.220.0030.00717.74
8.1.210.0060.00318.97
8.1.200.0040.00417.48
8.1.190.0060.00317.35
8.1.180.0080.00018.10
8.1.170.0030.00618.46
8.1.160.0000.00822.23
8.1.150.0070.00020.62
8.1.140.0040.00419.63
8.1.130.0040.00417.47
8.1.120.0000.00817.50
8.1.110.0090.00017.48
8.1.100.0040.00417.47
8.1.90.0000.00717.48
8.1.80.0000.00717.41
8.1.70.0030.00317.50
8.1.60.0050.00317.50
8.1.50.0000.00817.49
8.1.40.0040.00417.60
8.1.30.0040.00417.63
8.1.20.0030.00617.61
8.1.10.0040.00417.51
8.1.00.0000.00917.41
8.0.300.0080.00020.15
8.0.290.0040.00416.75
8.0.280.0040.00418.51
8.0.270.0050.00317.31
8.0.260.0000.00816.92
8.0.250.0030.00316.95
8.0.240.0030.00617.05
8.0.230.0040.00417.07
8.0.220.0000.00717.01
8.0.210.0070.00017.02
8.0.200.0070.00017.04
8.0.190.0000.00817.09
8.0.180.0040.00416.95
8.0.170.0040.00417.06
8.0.160.0040.00416.98
8.0.150.0040.00416.92
8.0.140.0040.00416.97
8.0.130.0040.00413.39
8.0.120.0030.00616.87
8.0.110.0050.00316.89
8.0.100.0030.00616.87
8.0.90.0000.00716.78
8.0.80.0040.01216.98
8.0.70.0040.00416.91
8.0.60.0000.00816.96
8.0.50.0040.00416.86
8.0.30.0100.00717.08
8.0.20.0140.00617.40
8.0.10.0040.00417.21
8.0.00.0030.01416.79
7.4.330.0050.00015.55
7.4.320.0030.00316.64
7.4.300.0070.00016.56
7.4.290.0070.00016.48
7.4.280.0040.00416.54
7.4.270.0030.00316.71
7.4.260.0020.00516.48
7.4.250.0070.00016.61
7.4.240.0040.00316.56
7.4.230.0030.00316.64
7.4.220.0030.01216.44
7.4.210.0140.00516.59
7.4.200.0000.00816.44
7.4.160.0100.00516.46
7.4.150.0100.00917.40
7.4.140.0070.01217.86
7.4.130.0080.01016.60
7.4.120.0080.00816.49
7.4.110.0090.01116.54
7.4.100.0060.01216.45
7.4.90.0040.01316.65
7.4.80.0060.01619.39
7.4.70.0060.01016.80
7.4.60.0070.01116.41
7.4.50.0040.01116.44
7.4.40.0060.01016.42
7.4.30.0070.01116.64
7.4.00.0070.01115.25
7.3.330.0000.00613.35
7.3.320.0000.00713.40
7.3.310.0000.00916.49
7.3.300.0030.00316.26
7.3.290.0040.00416.30
7.3.280.0110.00616.45
7.3.270.0070.01117.40
7.3.260.0060.01116.40
7.3.250.0120.00616.48
7.3.240.0120.00716.38
7.3.230.0090.00916.67
7.3.210.0070.01716.65
7.3.200.0200.00316.52
7.3.190.0040.01216.49
7.3.180.0110.00816.36
7.3.170.0120.00416.35
7.3.160.0070.01416.49
7.2.330.0100.01016.83
7.2.320.0070.01116.68
7.2.310.0040.01216.76
7.2.300.0040.01416.80
7.2.290.0060.00916.80
7.2.60.0100.00617.07
7.2.50.0090.00316.87
7.2.00.0070.00319.48
7.1.200.0030.01015.93
7.1.70.0060.00317.29
7.1.60.0070.00317.31
7.1.00.0070.06322.35
7.0.200.0340.01014.55
7.0.120.0100.07022.14
7.0.110.0170.06322.01
7.0.100.0130.06022.04
7.0.90.0000.07322.07
7.0.80.0100.05722.08
7.0.70.0030.06322.11
7.0.60.0130.07022.14
7.0.50.0070.07022.06
7.0.40.0000.07721.99
7.0.30.0100.05322.15
7.0.20.0030.07321.98
7.0.10.0100.06322.10
7.0.00.0100.05722.04
5.6.270.0100.07320.91
5.6.260.0030.08320.92
5.6.250.0000.08320.91
5.6.240.0100.07021.14
5.6.230.0100.06721.09
5.6.220.0070.06320.87
5.6.210.0070.06021.08
5.6.200.0030.07020.84
5.6.190.0070.06320.87
5.6.180.0070.07320.79
5.6.170.0000.07720.78
5.6.160.0130.06320.96
5.6.150.0030.06321.07
5.6.140.0070.07721.03
5.6.130.0130.06721.04
5.6.120.0030.06721.09
5.6.110.0100.07721.04
5.6.100.0100.06021.08
5.6.90.0100.06021.03
5.6.80.0130.05020.43
5.6.70.0100.06020.39
5.6.60.0130.06320.33
5.6.50.0100.06320.45
5.6.40.0100.06720.30
5.6.30.0100.07320.48
5.6.20.0030.07320.24
5.6.10.0070.07020.45
5.6.00.0100.06320.39

preferences:
68.41 ms | 401 KiB | 5 Q