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)
From: http://blog.csdn.net/zxycode007/article/details/6999984
Hash list, which is based onQuick accessIs also a typical"Space Change Time. As the name suggests, this data structure can be understood as a linear table, but the elements in it are not
Reprinted from: http://blog.csdn.net/zxycode007/article/details/6999984
Hash list, which is based onQuick accessIs also a typical"Space Change Time. As the name suggests, this data structure can be understood as a linear table, but the elements in
Hash table, which is based on the high-speed access point of view design, but also a typical " space-time " approach. As the name implies, the data structure can be understood as a linear table, but the elements are not tightly arranged, but there
The hash table, which is based on the fast access angle design, is also a typical " space-time " approach. As the name implies, the data structure can be understood as a linear table, but the elements are not tightly arranged, but there may be
Hash table, which is based on the high-speed access point of view design, but also a typical " space-time " approach. As the name implies, the data structure can be understood as a linear table, but the elements are not tightly arranged, but there
Hash table, also known as the hash table, is based on a fast access point of view design, but also a typical " space-time " approach. As the name implies, the data structure can be understood as a linear table, but the elements are not tightly
In the computational theory, there is no hash function, only one-way function is said. The so-called one-way function, is a complex definition, you can see the computational theory or cryptography data. The "Human" language describes the one-way
ArticleDirectory
3.1 c ++
Java 3.2
1. Hash Introduction
Hash is a frequently used data structure to implement certain functions. In Java and C ++, there is a encapsulated Data Structure: C ++ STL map Java has hashmapTreemap.
In
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.