¡@
php Programming Glossary: vectorLSA - Latent Semantic Analysis - How to code it in PHP? http://stackoverflow.com/questions/1014927/lsa-latent-semantic-analysis-how-to-code-it-in-php SVD function will give the singular values and singular vectors in descending order. If not you have to do more acrobatics... M U w x w Sigma min w d length vector or w d matrix with diagonal filled in the first min w d spots.. a good approximation for the basis is to keep enough vectors such that their singular values are more than 50 of the total..
How to encrypt/decrypt data in php? http://stackoverflow.com/questions/10916284/how-to-encrypt-decrypt-data-in-php function The IV field is used to store the initialisation vector used for encryption. The storage requirements depend on the.. the size of both the encryption key and initialisation vector their sizes can be found via mcrypt_get_key_size and mcrypt_get_iv_size.. the encryption key size is 32 bytes and the initialisation vector size is 16 bytes. Encryption key A good encryption key is a..
http://stackoverflow.com/questions/1118154/sending-mass-email-using-php
Does $_REQUEST have security problem? http://stackoverflow.com/questions/1149118/does-request-have-security-problem and sanitized before being used you have a possible vector of attack. In short It doesn't matter where the data comes from..
PHP HTML to PDF conversion proportionally [closed] http://stackoverflow.com/questions/12834641/php-html-to-pdf-conversion-proportionally output 300 600pdi on paper you need to use proper fonts or vector graphics. These render at the resolution required and won't..
Formulas to Calculate Geo Proximity http://stackoverflow.com/questions/2096385/formulas-to-calculate-geo-proximity get. It has the added advantage that you can calculate the vector distance x is distance in east direction and y is distance in..
Are these two functions overkill for sanitization? http://stackoverflow.com/questions/2940030/are-these-two-functions-overkill-for-sanitization advantage of sanitizing outgoing HTML is that a new attack vector may be discovered in which case sanitizing incoming HTML won't..
Historical security flaws of popular PHP CMS's? http://stackoverflow.com/questions/2951917/historical-security-flaws-of-popular-php-cmss possible. I'm generally aware of most of the usual attack vectors but I want to make sure that all the bases are covered so don't.. can check wikipedia and OWASP . You also have a lot of XSS vector on ha.ckers page. Mail header injection Description Mail headers..
How can I determine a file's true extension/type programatically? http://stackoverflow.com/questions/481743/how-can-i-determine-a-files-true-extension-type-programatically data into an external program which is generally an attack vector. here I am trusting imageMagick to not do anything to my system... filetypes you intend to use to avoid any attack vectors. Edit I see in PHP there are some tools to do this for you...
Libpuzzle Indexing millions of pictures? http://stackoverflow.com/questions/9703762/libpuzzle-indexing-millions-of-pictures store the data in my mysql database. The generation of the vector is absolutly no problem. Example # Compute signatures for two.. # Compute the distance between both signatures d puzzle_vector_normalized_distance cvec1 cvec2 # Are pictures similar if d.. i have a big amount of pictures 1.000.000 I calculate the vector and store it with the filename in the database How to find the..
How do I check if a longitude/latitude point is within a range of coordinates? http://stackoverflow.com/questions/11510326/how-do-i-check-if-a-longitude-latitude-point-is-within-a-range-of-coordinates the plane the circle lies on AKA the normal vector class Vector double x double y double z class GreatCircle Vector normal Any.. class Vector double x double y double z class GreatCircle Vector normal Any two lattitude longitude coordinates that aren't antipodal.. into their negative North and West counterparts. Vector lineFromCoordinate Coordinate c Vector ret new Vector given..
PHP 2-way encryption: I need to store passwords that can be retrieved http://stackoverflow.com/questions/5089841/php-2-way-encryption-i-need-to-store-passwords-that-can-be-retrieved Benefits Uses Key stretching Hides the Initialization Vector Does HMAC verification of source data class Encryption @var..
|