php Programming Glossary: algorithms

How would you code an anti plagiarism site?

http://stackoverflow.com/questions/1085048/how-would-you-code-an-anti-plagiarism-site

may already be open source implementations. How do the algorithms work which detect plagiarism in uploaded text Does it use regex.. that two texts are more similar. Some compression algorithms will give better results than others. Luckily PHP provides support.. Luckily PHP provides support for several compression algorithms so you can have your NCD driven plagiarism detection code running..

How to encrypt/decrypt data in php?

http://stackoverflow.com/questions/10916284/how-to-encrypt-decrypt-data-in-php

length and poor password choices of many people. Hashing algorithms such as MD5 or SHA1 were made to verify file contents against..

Reference: all basic ways to sort arrays and data in PHP

http://stackoverflow.com/questions/17364127/reference-all-basic-ways-to-sort-arrays-and-data-in-php

see 1. for the academic in detail answer on sorting algorithms which PHP's functions implement and which you may need for really.. Although the algorithm is simple most of the other sorting algorithms are more efficient for large lists. function bubbleSort array.. and it has performance advantages over more complicated algorithms in certain situations particularly where auxiliary memory is..

Stemming algorithm that produces real words

http://stackoverflow.com/questions/190775/stemming-algorithm-that-produces-real-words

stems to communiti . Question Are there any other stemming algorithms that will do this Has anyone else solved this problem My current.. this question The core issue here is that stemming algorithms operate on a phonetic basis purely based on the language's spelling..

Music Recognition and Signal Processing

http://stackoverflow.com/questions/2068286/music-recognition-and-signal-processing

out if you're not sure what they do and I'm wondering what algorithms I'd have to use The idea I have about the workings of such applications..

How to compress/decompress a long query string in PHP?

http://stackoverflow.com/questions/2996049/how-to-compress-decompress-a-long-query-string-in-php

data compresses differently and different encoding algorithms work differently. Also longer strings may achieve a better compression..

Algorithm for generating a random number

http://stackoverflow.com/questions/319524/algorithm-for-generating-a-random-number

ways to do this but I'm hoping someone very keen on algorithms has a clever way of solving the problem in an elegant solution..

Secure hash and salt for PHP passwords

http://stackoverflow.com/questions/401656/secure-hash-and-salt-for-php-passwords

to its ability to be brute forced. Worse still most hash algorithms can be easily parallelized to perform even faster. This is why..

Unique key generation

http://stackoverflow.com/questions/55218/unique-key-generation

not likely to repeat . There are actually 5 different UUID algorithms . Algorithm 4 is what Microsoft currently uses for the Windows..

sort Magento collection AFTER load

http://stackoverflow.com/questions/5673093/sort-magento-collection-after-load

magic getters setters which can are be implemented with algorithms etc. I'm wondering if there are more elegant Magento esque methods..

What encryption algorithm is best for encrypting cookies?

http://stackoverflow.com/questions/606179/what-encryption-algorithm-is-best-for-encrypting-cookies

Blowfish having a smaller block size. I think that both algorithms provide more than adequate security so the speed would then..

Finding cartesian product with PHP associative arrays

http://stackoverflow.com/questions/6311779/finding-cartesian-product-with-php-associative-arrays

...etc. I've looked up quite a number of cartesian product algorithms but I'm getting stuck on the specifics of how to preserve the..

Calculating image size ratio for resizing

http://stackoverflow.com/questions/6594089/calculating-image-size-ratio-for-resizing

openssl_digest vs hash vs hash_hmac? Difference between SALT & HMAC?

http://stackoverflow.com/questions/8952807/openssl-digest-vs-hash-vs-hash-hmac-difference-between-salt-hmac

see that in addition to password and salt all of the above algorithms use a very small amount of memory. In the case of sha512 they'll.. has an advantage that it uses more memory than the above algorithms on the order of 4 to 5kb . So it's more resistent to parallelizing... 07 usesomesillystringforsalt ' Note that crypt uses many algorithms but the 2y and 2a algorithms are bcrypt . But can we improve..