crc32 polynomial

PHP Learning Series (1)--String processing function (3), PHP function 11, CRC32 () function computes the crc32 polynomial of a string. A 32-bit cyclic redundancy check code polynomial that generates a string parameter. This function can be used to

Note: This article reprinted http://www.manongjc.com/article/499.html The PHP crc32 function is used to generate a string of 32-bit cyclic redundancy check code polynomial. This is typically used to check the integrity of the data being transmitted.

Php crc32 calculates the 32-bit CRC (cyclic redundancy check) and crc32crc of the string. Note: This article reprinted http://www.manongjc.com/article/499.html   The php crc32 function is used to generate a 32-bit Cyclic Redundancy checkcode

Note: This article reprinted http://www.manongjc.com/article/499.htmlThe PHP crc32 function is used to generate a string of 32-bit cyclic redundancy check code polynomial. This is typically used to check the integrity of the data being transmitted.

This article was reproduced from: http://blog.163.com/yucheng_xiao/blog/static/76600192201393092918776/First, the basic principleThe CRC test principle is actually the addition of an R-bit binary test code (sequence) after a P-bit binary data

Instance Results of output CRC32 (): Definition and usage The CRC32 () function computes a 32-bit CRC (cyclic redundancy check) for a string. This function can be used to verify the integrity of the data. Tip: To ensure that you can get the correct

These days in the study of CRC32 calculation process, see the principle of CRC algorithm, but also see a lot of code implemented by the shift method, but the results are calculated with the calibration tool is inconsistent.Toss for a long time,

When a Web server communicates with an app server, it often uses different languages on both ends. For example, this time I met PHP and C.PHP as a high-level language, a variety of convenient library functions are readily accessible, in the PHP crc32

The following is a CRC32 computingCodeAccording to my tests, the results are correct. I hope to help you and avoid detours !!! Note !!!!The generated polynomial is: Poly = 0x4c11db7; Class iso_13818_crc32 {Public:Iso_13818_crc32 ();Void Update

CRC16 Implementation CodeIdea: Take a character (8bit), check the character bit by digit, if it is 1,crc^crc_mul, and if the original CRC highest bit is 1, then crc^crc_mul the left 1 bits, otherwise it just moves left one bit. After calculating one