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How to add new column to MYSQL table?

... | edited Apr 24 '16 at 17:02 answered Apr 19 '13 at 21:28 ...
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Are global variables in PHP considered bad practice? If so, why?

In my small PHP projects I usually go the procedural way. I generally have a variable that contains the system configuration, and when I nead to access this variable in a function, I do global $var; . ...
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How can I store my users' passwords safely?

...tials'; } (In case you are still using legacy 5.3.7 or newer you can install ircmaxell/password_compat to have access to the build-in functions) Improving upon salted hashes: add pepper If you want extra security, the security folks now (2017) recommend adding a 'pepper' to the (automatically)...
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Change priorityQueue to max priorityqueue

...unction, names its input parameters x and y and returns y-x, which is basically what the int comparator class does except it returns x-y – Edi Bice Jun 22 '17 at 19:44 15 ...
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Pass Method as Parameter using C#

I have several methods all with the same parameter types and return values but different names and blocks. I want to pass the name of the method to run to another method that will invoke the passed method. ...
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Python: finding an element in a list [duplicate]

... | edited Sep 1 '18 at 16:51 tedder42 19k77 gold badges7070 silver badges8787 bronze badges answered ...
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Limit file format when using ?

...tioned here, but is not the default in the dropdown. The default filter is All files (*).] You can also use asterisks in MIME-types. For example: <input type="file" accept="image/*" /> <!-- all image types --> <input type="file" accept="audio/*" /> <!-- all audio types --&g...
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Setting variable to NULL after free

... int *nPtr=NULL;. Now, I would agree that this would be redundant, with a malloc following right in the next line. However, if there is code between the declaration and the first initialization, somebody might start using the variable even though it has no value yet. If you null-initialize, you get ...
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How to check if a string is a valid date

... Using a "catch-it-all" rescue should be considered an anti-pattern. It can hide out other errors which we don't expect and make the debugging of the code extremely difficult. – yagooar Jan 29 '13 at 10:32...
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Are booleans as method arguments unacceptable? [closed]

...mine states that booleans as method arguments are not acceptable . They shall be replaced by enumerations. At first I did not see any benefit, but he gave me an example. ...