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Check if PHP session has already started
... really think about refactoring your session management code if you don't know whether or not a session is started...
That said, my opinion is subjective, and there are situations (examples of which are described in the comments below) where it may not be possible to know if the session is started....
Finding all objects that have a given property inside a collection [duplicate]
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(1) it's nice to know how it's implemented (2) it's usually not worth bringing in a whole extra library just for a simple method like this.
– David Z
Feb 26 '09 at 1:00
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How to delete a specific line in a file?
...ng along the line as it's read. Once that line has been read the cursor is now past it. When you try to write into the file you write where the cursor currently is. By re-opening the file you reset the cursor.
– Waddas
Aug 6 '14 at 20:48
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How can I decode HTML characters in C#?
...solution because HttpUtility doesn't decode "'" symbol.. I don't know why..
– RredCat
Sep 13 '11 at 13:44
Thi...
How to cherry-pick from a remote branch?
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This is incorrect. Because now you are merging the HEAD of master into zebra instead of just selected commits.
– Chef Pharaoh
Apr 28 '17 at 15:29
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Format numbers in django templates
...end(value[-decimal_points:])
value = value[:-decimal_points]
# now we should have parts = ['345', '12']
parts.reverse()
# and the return value should be u'12.345'
return seperator.join(parts)
Creating a custom template filter from this function is trivial.
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Enable the display of line numbers in Visual Studio
...rs in a source file? Is there any way to enable it, or a plugin for it? I know that the number of lines of code in a program doesn't matter, but sometimes it is nice to know how long a program is or the number of a particular line for reference.
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Why does 1==1==1 return true, “1”==“1”==“1” return true, and “a...
...o being compared to true and is thus also considered to be equal to true.
Now, the "WHY?!?!" question is explained by the fact that Javascript has its roots in the C-family of languages. In which any number, other than 0 is considered to be a valid true boolean. :-/
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Import a file from a subdirectory?
... community has produced the PSR-4 standard and Composer implements it, and nowadays nobody has to worry about that. And no stupid hardcoded __init__ files (but if you want it, just register an autoloading hook ! This is the difference between hacky and hackable).
– Morgan Touve...
How do I declare and initialize an array in Java?
... new array will be and how much memory to allocate. For instance, if Java knows that the base type Type takes 32 bytes, and you want an array of size 5, it needs to internally allocate 32 * 5 = 160 bytes.
You can also create arrays with the values already there, such as
int[] name = {1, 2, 3, 4, 5...