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How to calculate the difference between two dates using PHP?

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SQL - many-to-many table primary key

...real advantage to having a surrogate key. Having a primary key on (col1,col2) is guaranteed unique (assuming your col1 and col2 values in the referenced tables are unique) and a separate index on (col2,col1) will catch those cases where the opposite order would execute faster. The surrogate is a was...
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Why is iostream::eof inside a loop condition (i.e. `while (!stream.eof())`) considered wrong?

... Some programmer dude 349k3030 gold badges328328 silver badges522522 bronze badges answered Apr 9 '11 at 12:58 XeoXeo 121...
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What's the difference between ISO 8601 and RFC 3339 Date Formats?

... 254 Is one just an extension? Pretty much, yes - RFC 3339 is listed as a profile of ISO 8601....
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Can Eclipse refresh resources automatically?

Eclipse (3.4.2 with PyDev) deals with out-of-sync resources (files that have been edited outside of the IDE) differently from other IDEs that I've used, where only resources with editors open are considered out-of-sync. In Eclipse, any resource can go out of sync. ...
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How to access a dictionary element in a Django template?

...object: class Choice(models.Model): text = models.CharField(max_length=200) def calculateVotes(self): return Vote.objects.filter(choice=self).count() votes = property(calculateVotes) And then in your template, you can do: {% for choice in choices %} {{choice.choice}} - {{c...
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Segue to another storyboard?

... 202 +500 Yes, b...
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What's the meaning of exception code “EXC_I386_GPFLT”?

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Detect network connection type on Android

...ork connectivity and speed * @author emil http://stackoverflow.com/users/220710/emil * */ public class Connectivity { /** * Get the network info * @param context * @return */ public static NetworkInfo getNetworkInfo(Context context){ ConnectivityManager cm = ...
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What are all codecs and formats supported by FFmpeg?

... Matthew FlaschenMatthew Flaschen 246k4343 gold badges477477 silver badges522522 bronze badges ...