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php Programming Glossary: lowHow safe are PHP session variables? http://stackoverflow.com/questions/1181105/how-safe-are-php-session-variables this are IP Checking which works pretty well but is very low fi and thus not reliable on its own and using a nonce. Typically..
Is native PHP support for Web Sockets available? http://stackoverflow.com/questions/12203443/is-native-php-support-for-web-sockets-available Socket Create reference from php.net but this looks more low level than Web Sockets. I want to use this Web Sockets as shown..
http://stackoverflow.com/questions/1336776/xss-filtering-function-in-php control the behaviour by for example stripping or encoding low and high characters. Here is a list of sanitizing filters ...
How unique is the php session id http://stackoverflow.com/questions/138670/how-unique-is-the-php-session-id can indeed be duplicated but the probability is very low. If you have a website with a fair traffic it may happens once..
Why is REGISTER_GLOBALS so bad? http://stackoverflow.com/questions/1417373/why-is-register-globals-so-bad for the same reason but PHP code is usually very low quality leading to this kind of security holes. share improve..
http://stackoverflow.com/questions/1706042/how-to-parse-xml-file-in-php operates on the XML stream . The nice thing is that it allows you to inter operate with the DOM via XMLReader expand . XML.. with the DOM via XMLReader expand . XML Parser is a very low level component which allows you to create SAX parsers which.. expand . XML Parser is a very low level component which allows you to create SAX parsers which means that you define handler..
http://stackoverflow.com/questions/1835177/how-to-use-xmlreader-in-php to use XMLReader in PHP I have the following XML file the file is rather large and i haven't been able.. to access them. This way you keep the memory usage low because you're treating one node at a time and you still leverage.. of userland code to do anything useful. Userland code is slow and prone to error. Plus it leaves you with more lines of code..
Why use a framework with PHP? [closed] http://stackoverflow.com/questions/1851920/why-use-a-framework-with-php share improve this question Framework abstracts you from low level details makes you more productive and protects you from.. details makes you more productive and protects you from low level error such as preventing SQL injection attacks . A good..
http://stackoverflow.com/questions/2131758/bitwise-operations-in-php understand that bitwise operations are necessary for much low level programming such as writing device drivers low level graphics.. much low level programming such as writing device drivers low level graphics communications protocol packet assembly and decoding... a quick bitmask howto for programmers.html http stackoverflow.com questions 1380045 why should i use bitwise bitmask in php..
List of Big-O for PHP functions http://stackoverflow.com/questions/2473989/list-of-big-o-for-php-functions PHP built in functions as fast as expected. Consider the below two possible implementations of a function that finds if a number.. if a number is prime using a cached array of primes. very slow for large prime_array prime_array array 2 3 5 7 11 13 .... 104729.. implemented with a linear search O n which will linearly slow down as prime_array grows. Where the array_key_exists function..
http://stackoverflow.com/questions/3300680/does-reflection-breaks-the-idea-of-private-methods-because-private-methods-can does making a field private protect it from the threat of low trust code attempting to read it and thereby steal user's data.. evil hackers who have lured the user into running hostile low trust code then that is a good technique. share improve this..
http://stackoverflow.com/questions/3430181/acl-implementation acl setMethod 'myMethod' acl getRole if acl allowed die You're not allowed to do it ... It is very bad approach.. 'myMethod' acl getRole if acl allowed die You're not allowed to do it ... It is very bad approach and it's minus is that.. __CLASS__ acl setMethod name acl getRole if acl allowed die You're not allowed to do it ... It is better than previous..
Secure hash and salt for PHP passwords http://stackoverflow.com/questions/401656/secure-hash-and-salt-for-php-passwords Hashing a password a million times may be safer but also slower. How to achieve a good balance between speed and safety Also.. minimum length plus require at least 1 upper case letter 1 lower case letter a number and a symbol. This will improve the entropy.. variation is within the password. When a password is only lowercase roman letters that's only 26 characters. That isn't much..
PHP: “Notice: Undefined variable” and “Notice: Undefined index” http://stackoverflow.com/questions/4261133/php-notice-undefined-variable-and-notice-undefined-index does in the case of undeclared variables is issue a very low level error E_NOTICE one that is not even reported by default.. not even reported by default but the Manual advises to allow during development. Ways to deal with the issue Recommended..
On-the-fly zipping & streaming of large files, in PHP or otherwise http://stackoverflow.com/questions/4357073/on-the-fly-zipping-streaming-of-large-files-in-php-or-otherwise some time in the future . However such a schema has the following drawbacks a period of intensive CPU and disk thrashing unacceptably.. in disk and CPU usage spikes. In contrast consider the following bash snippet ls 1 zip @ dd of dev somewhere A pipe has an.. c. on linux operates in streaming mode and therefore has a low memory footprint and works only as fast as its output can be..
Force SSL/https using .htaccess and mod_rewrite [duplicate] http://stackoverflow.com/questions/4398951/force-ssl-https-using-htaccess-and-mod-rewrite not do a redirect to https though. To redirect try the following with mod_rewrite RewriteEngine On RewriteCond HTTPS on RewriteRule..
Is there any way to detect strings like putjbtghguhjjjanika? http://stackoverflow.com/questions/6297991/is-there-any-way-to-detect-strings-like-putjbtghguhjjjanika that after a 'q' you'll get a 'u'. If you get a 'q' followed by something other than a 'u' this will happen with very low.. by something other than a 'u' this will happen with very low probability and hence it should be pretty alarming. Normalize.. normalize by the length of the query. When the number is low you likely have a gibberish query or something in a different..
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