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How can I sanitize user input with PHP?
...'s a common misconception that user input can be filtered. PHP even has a (now deprecated) "feature", called magic-quotes, that builds on this idea. It's nonsense. Forget about filtering (or cleaning, or whatever people call it).
What you should do, to avoid problems, is quite simple: whenever you ...
What does the “map” method do in Ruby?
..., convert each element by some rule
names.map! {|name| name.capitalize } # now names contains ['Danil', 'Edmund']
names.each { |name| puts name + ' is a programmer' } # here we just do something with each element
The output:
Danil is a programmer
Edmund is a programmer
...
Always pass weak reference of self into block in ARC?
... NSUInteger idx, BOOL *stop) {
[self doSomethingWithObj:obj];
}];
Now, your object (self) has an explicit strong reference to the block. And the block has an implicit strong reference to self. That's a cycle, and now neither object will be deallocated properly.
Because, in a situation like...
Bundler: Command not found
...
Under uBuntu 11.04, the latest command path is now export PATH=$PATH:/var/lib/gems/1.8/bin
– Antony
Jul 16 '11 at 2:13
...
Why do == comparisons with Integer.valueOf(String) give different results for 127 and 128?
...ird value returns true - 128 == 128 is evaluated, and is of course, true.
Now, a fair bit happens to make that third result true:
An unboxing conversion occurs with respect to the equivalence operator you're using and the datatypes you have - namely, int and Integer. You're getting an Integer fr...
How can I distinguish whether Switch,Checkbox Value is changed by user or programmatically (includin
...)v).isChecked();
setSomeBoolean(checked);
}
});
Now you only pick up click events and don't have to worry about programmatic changes.
Answer 1:
I have created a wrapper class (see Decorator Pattern) which handles this problem in an encapsulated way:
public class Bette...
Downloading a picture via urllib and python
...f the file would be appended. It made sense to me at the time, but I think now I understand what's happening.
– JeffThompson
Nov 3 '14 at 11:41
68
...
Signing a Windows EXE file
...o that Windows will not warn the end user about an application from an "unknown publisher". I am not a Windows developer. The application in question is a screensaver generated from an application that generates screensaver applications. As such I have no influence on how the file is generated.
...
Why doesn't Java offer operator overloading?
...sult not-equal. In Java, operator= performs reference copy, so a and b are now referring to the same value. As a result, the comparison will produce 'equal', since the object will compare equal to itself.
The difference between copies and references only adds to the confusion of operator overloadin...
How to debug .htaccess RewriteRule not working
...og and RewriteLogLevel directives have been removed. This functionality is now provided by configuring the appropriate level of logging for the mod_rewrite module using the LogLevel directive. See also the mod_rewrite logging section.
For more on LogLevel, refer LogLevel Directive
you can accompl...