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Null vs. False vs. 0 in PHP
...ting means it also failed the filter?)
Methods returning false/null/string/etc interchangeably is a hack when the author care about the type of failure, for example, with filter_input() you can check for ===false or ===null if you care why the validation failed. But if you don't it might be a pitfal...
Set a persistent environment variable from cmd.exe
...oring an environment variable at user level.
In cmd, SETX TEST_VARIABLE etc. Not applied yet (echo %TEST_VARIABLE% shows %TEST_VARIABLE%,
Quick check: open cmd, echo %TEST_VARIABLE% shows etc.
GUI check: System Properties -> Advanced -> Environment variables -> User variables for -> ...
The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead [dupl
...ing to replace ext/mysql with one of the other, more modern, extensions in order that you can reap the rewards of the benefits they offer; you might also use it as an opportunity to refactor your database access methods into a more modular structure.
However, if you have an urgent need to upgrade P...
When would you use a List instead of a Dictionary?
...
The List would also be useful when you care about the order of the items.
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PersistentObjectException: detached entity passed to persist thrown by JPA and Hibernate
...on performance as Hibenate still makes 2 queries, we are just changing the order of queries.
– Vikky
Aug 30 '19 at 12:13
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How Can I Browse/View The Values Stored in Redis [closed]
... when I use redsmin status I get error: Redsmin daemon is not running.. etc/log.log is 0 bytes. What's up?
– Thomson Comer
Jan 22 '14 at 3:41
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Creating an API for mobile applications - Authentication and Authorization
... purpose will be for consumption by mobile apps (iPhone, Android, Symbian, etc). I've been looking into different mechanisms for authentication and authorization for web-based APIs (by studying other implementations). I've got my head wrapped around most of the fundamental concepts but am still lo...
Why is AJAX returning HTTP status code 0?
... access is denied)
requesting a URL that is unreachable (typo, DNS issues, etc)
the request is otherwise intercepted (check your ad blocker)
as above, if the request is interrupted (browser navigates away from the page)
sha...
What's the use of session.flush() in Hibernate
...it but hits the database and executes the query and gets rollback too.
In order to commit we use commit() on Transaction object.
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What does the term “porcelain” mean in Git?
...interface to Porcelain commands on the other hand are subject to change in order to improve the end user experience.
See "How do I programmatically determine if there are uncommitted changes?" as an example to using plumbing commands instead of porcelain ones.
Note: A porcelain command can have...