The crc32 function of php must be used with caution (otherwise it is a pitfall. The crc32 function of php needs to be used with attention (otherwise it is a pitfall). The crc32 function has written a table sharding program a few days ago. the hash
PHP Crc32 function to be aware of the problem (or pit), CRC32 function
A few days ago wrote a sub-table program, using the hash algorithm is CRC32. The functions of the table are as follows:Copy the Code code as follows:function _gethash ($username)
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
Recently, because a business needs to use the CRC32 algorithm, but the business can not tolerate duplicate values appear, so naturally want to understand the CRC32 algorithm collision probability (or called collision probability).I think this
Packet in the network transmission must be considered in case of data corruption, CRC32 and Adler32 are the most commonly used algorithms.Both go and Android are built into the implementation of these two algorithms, and the direct use is good.The
What kind of pits does PHP crc32 encounter? How do I fix it? This paper mainly introduces the problems needing attention when using PHP's CRC32 function. Hope to use CRC32 to help you.
A few days ago wrote a sub-table program, using the hash
This is a creation in
Article, where the information may have evolved or changed. Packet in the network transmission must be considered in case of data corruption, CRC32 and Adler32 are the most commonly used algorithms.
Both go and Android are
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,
Questions to be aware of when using PHP's CRC32 function
This article mainly introduces the CRC32 function of PHP need to pay attention to the problem (otherwise is the pit), the need for friends can refer to the next
A few days ago wrote a
Notes for using php crc32 Functions
This article mainly introduces the issues that need to be paid attention to when using php crc32 functions (otherwise, it is a pitfall). If you need a friend, refer
I wrote a table sharding program a few days ago.
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