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In what cases will HTTP_REFERER be e<em>mem>pty
I know it's possible to get an e<em>mem>pty HTTP_REFERER. Under what circu<em>mem>stances does this happen? If I get an e<em>mem>pty one, does it always <em>mem>ean that the user changed it? Is getting an e<em>mem>pty one the sa<em>mem>e as getting a null one? and under what circu<em>mem>stances do I get that too?
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“Keep <em>Mem>e Logged In” - the best approach
<em>Mem>y web application uses sessions to store infor<em>mem>ation about the user once they've logged in, and to <em>mem>aintain that infor<em>mem>ation as they travel fro<em>mem> page to page within the app. In this specific application, I'<em>mem> storing the user_id , first_na<em>mem>e and last_na<em>mem>e of the person.
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Difference between attr_accessor and attr_accessible
..., what is the difference between attr_accessor and attr_accessible ? Fro<em>mem> <em>mem>y understanding, using attr_accessor is used to create getter and setter <em>mem>ethods for that variable, so that we can access the variable like Object.variable or Object.variable = so<em>mem>e_value .
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JavaScript/JQuery: $(window).resize how to fire AFTER the resize is co<em>mem>pleted?
I'<em>mem> using JQuery as such:
12 Answers
12
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git undo all unco<em>mem><em>mem>itted or unsaved changes
I'<em>mem> trying to undo all changes since <em>mem>y last co<em>mem><em>mem>it. I tried git reset --hard and git reset --hard HEAD after viewing this post . I responds with head is now at 18c3773... but when I look at <em>mem>y local source all the files are still there. What a<em>mem> I <em>mem>issing?
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How can I <em>mem>anually generate a .pyc file fro<em>mem> a .py file
For so<em>mem>e reason, I can not depend on Python's "i<em>mem>port" state<em>mem>ent to generate .pyc file auto<em>mem>atically
8 Answers
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What is the difference between PS1 and PRO<em>Mem>PT_CO<em>Mem><em>Mem>AND
While taking a look at this aweso<em>mem>e thread I noticed that so<em>mem>e exa<em>mem>ples use
6 Answers
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What JSON library to use in Scala? [closed]
I need to build a JSON string, so<em>mem>ething like this:
15 Answers
15
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How can I output leading zeros in Ruby?
I'<em>mem> outputting a set of nu<em>mem>bered files fro<em>mem> a Ruby script. The nu<em>mem>bers co<em>mem>e fro<em>mem> incre<em>mem>enting a counter, but to <em>mem>ake the<em>mem> sort nicely in the directory, I'd like to use leading zeros in the filena<em>mem>es. In other words
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C++ 线程安全的单例模式 - C/C++ - 清泛网 - 专注C/C++及内核技术
...的懒汉模式：
class Singleton
{
private:
static Singleton* <em>mem>_instance;
Singleton(){}
public:
static Singleton* getInstance();
};
Singleton* Singleton::getInstance()
{
if(NULL == <em>mem>_instance)
{
Lock();//借用其它类来实现，如boost
if(N...