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Calculate total seconds in PHP DateInterval

What is the best way to calculate the total number of seconds between two dates? So far, I've tried something along the lines of: ...
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How to prepend a string to a column value in MySQL?

I need a SQL update statement for updating a particular field of all the rows with a string "test" to be added in the front of the existing value. ...
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Size of font in CSS with slash

... This actually sets two properties and is equivalent to: font-size: 100%; line-height: 120%; To quote the official documentation: The syntax of this property is based on a traditional typographical shorthand notation to set mul...
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Are nullable types reference types?

When I declare an int as nullable 6 Answers 6 ...
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Python: Append item to list N times

This seems like something Python would have a shortcut for. I want to append an item to a list N times, effectively doing this: ...
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What are the Differences Between “php artisan dump-autoload” and “composer dump-autoload”?

I am pretty new to Laravel 4 and Composer. While I do Laravel 4 tutorials, I couldn't understand the difference between those two commands; php artisan dump-autoload and composer dump-autoload What's the difference between them? ...
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Java: PrintStream to String?

I have a function that takes an object of a certain type, and a PrintStream to which to print, and outputs a representation of that object. How can I capture this function's output in a String? Specifically, I want to use it as in a toString method. ...
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Django queries - id vs pk

When writing django queries one can use both id/pk as query parameters. 2 Answers 2 ...
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Switch to another Git tag

How do I check out version version/tag 1.1.4 of the rspec bundle ? 2 Answers 2 ...
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What is the difference between Class.this and this in Java

... In this case, they are the same. The Class.this syntax is useful when you have a non-static nested class that needs to refer to its outer class's instance. class Person{ String name; public void setName(String name){ this.name = name; } class Displayer { ...