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Easy way to test a URL for 404 in PHP?
I'm teaching myself some basic scraping and I've found that sometimes the URL's that I feed into my code return 404, which gums up all the rest of my code.
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SSH Private Key Permissions using Git GUI or ssh-keygen are too open
Recently I've been unable to clone or push to github, and I'm trying to find the root cause.
25 Answers
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Check if UIColor is dark or bright?
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do you know how to get the red , green and blue values of a color?
– Andre
Mar 24 '10 at 16:56
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Using bitwise OR 0 to floor a number
...in some cases?
Clarity is an obvious one, since we had to figure it out, and well,
I'm writting this question.
Will not pass jsLint.
32-bit signed integers only
Odd Comparative behavior: Math.floor(NaN) === NaN, while (NaN | 0) === 0
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Get local IP address
... internet there are several places that show you how to get an IP address. And a lot of them look like this example:
25 Ans...
Unique fields that allow nulls in Django
...trings are equal to empty strings for uniqueness checks, under both Django and database rules.
You can force the admin interface to store NULL for an empty string by providing your own customized model form for Foo with a clean_bar method that turns the empty string into None:
class FooForm(forms....
Visual Studio : short cut Key : Duplicate Line
Is there a shortcut for Duplicate Line command in Visual Studio 2008?
30 Answers
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How do I get the current time zone of MySQL?
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From the manual (section 9.6):
The current values of the global and client-specific time zones can be retrieved like this:
mysql> SELECT @@global.time_zone, @@session.time_zone;
Edit The above returns SYSTEM if MySQL is set to slave to the system's timezone, which is less than help...
What does 'predicate' mean in the context of computer science? [duplicate]
...ies a boolean function, i.e. a predicate.
– Dimitris Andreou
Jul 24 '10 at 17:25
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This is used i...
Including Google Web Fonts link or import?
...hey defer the loading of the included resource until the file is fetched.. and if you have a build process which "flattens" the @import's, then you create another problem with web fonts: dynamic providers like Google WebFonts serve platform-specific versions of the fonts, so if you simply inline the...