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Best Practices: Salting & peppering passwords?
...ographic secret.
The current password hashing algorithms (bcrypt, pbkdf2, etc) all are designed to only take in one secret value (the password). Adding in another secret into the algorithm hasn't been studied at all.
That doesn't mean it is not safe. It means we don't know if it is safe. And the g...
How do getters and setters work?
I'm from the php world. Could you explain what getters and setters are and could give you some examples?
6 Answers
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Convert JavaScript String to be all lower case?
...triNg".toLowerCase()
Here's the function that behaves exactly the same as PHP's one (for those who are porting PHP code into js)
function strToLower (str) {
return String(str).toLowerCase();
}
share
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Regex lookahead, lookbehind and atomic groups
...port look-behind assertions. And most flavors that support it (PHP, Python etc) require that look-behind portion to have a fixed length.
Atomic groups basically discards/forgets the subsequent tokens in the group once a token matches. Check this page for examples of atomic groups
...
Precedence and bitmask operations
...
Seems to me that PHP has strnage operator precedence overall.
– Alvin Wong
Feb 24 '14 at 10:11
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Get first n characters of a string
How can I get the first n characters of a string in PHP? What's the fastest way to trim a string to a specific number of characters, and append '...' if needed?
...
How to check if an object is a list or tuple (but not string)?
...) and not isinstance(obj, str):
print("obj is a sequence (list, tuple, etc) but not a string")
Changed in version 3.3: Moved Collections Abstract Base Classes to the collections.abc module. For backwards compatibility, they will continue to be visible in this module as well until version 3....
Building a minimal plugin architecture in Python
...command-line tool? A set of scripts? A program with an unique entry point, etc...
Given the little information I have, I will answer in a very generic manner.
What means do you have to add plugins?
You will probably have to add a configuration file, which will list the paths/directories to load...
How do I check if a column is empty or null in MySQL?
...= ' ' IS TRUE
'' = ' ' IS TRUE
' ' = ' ' IS TRUE
' ' = ' ' IS TRUE
etc
Therefore, this should work regardless of how many spaces make up the some_col value:
SELECT *
FROM T
WHERE some_col IS NULL
OR some_col = ' ';
or more succinctly:
SELECT *
FROM T
WHERE NULLIF(some_c...
NodeJS: Saving a base64-encoded image to disk
...
UPDATE
I found this interesting link how to solve your problem in PHP. I think you forgot to replace space by +as shown in the link.
I took this circle from http://images-mediawiki-sites.thefullwiki.org/04/1/7/5/6204600836255205.png as sample which looks like:
Next I put it through htt...