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cleanest way to skip a foreach if array is empty [duplicate]

Not a major problem but I was wondering if there is a cleaner way to do this. It would be good to avoid nesting my code with an unnecessary if statement. If $items is empty php throws an error. ...
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Testing web application on Mac/Safari when I don't own a Mac

Having been caught out recently when a web site I launched displayed perfectly on IE, Firefox, Chrome and Safari on Windows but was corrupted when viewed using Safari on the Mac (by a potential customer), I need to start testing how my sites look when viewed on a Mac. ...
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Why should a Java class implement comparable?

Why is Java Comparable used? Why would someone implement Comparable in a class? What is a real life example where you need to implement comparable? ...
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How do I truncate a .NET string?

...h that its length is not longer than a given value. I am writing to a database table and want to ensure that the values I write meet the constraint of the column's datatype. ...
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Powershell v3 Invoke-WebRequest HTTPS error

Using Powershell v3's Invoke-WebRequest and Invoke-RestMethod I have succesfully used the POST method to post a json file to a https website. ...
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How do I convert a String to an int in Java?

...cumentation you'll notice the "catch" is that this function can throw a NumberFormatException, which of course you have to handle: int foo; try { foo = Integer.parseInt(myString); } catch (NumberFormatException e) { foo = 0; } (This treatment defaults a malformed number to 0, but you can do s...
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ElasticSearch: Unassigned Shards, how to fix?

... By default, Elasticsearch will re-assign shards to nodes dynamically. However, if you've disabled shard allocation (perhaps you did a rolling restart and forgot to re-enable it), you can re-enable shard allocation. # v0.90.x...
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How to thoroughly purge and reinstall postgresql on ubuntu? [closed]

Somehow I've managed to completely bugger the install of postgresql on Ubuntu karmic. I want to start over from scratch, but when I "purge" the package with apt-get it still leaves traces behind such that the reinstall configuration doesn't run properly. ...
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What's the key difference between HTML 4 and HTML 5?

What are the key differences between HTML4 and HTML5 draft ? 8 Answers 8 ...
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Bash script absolute path with OS X

I am trying to obtain the absolute path to the currently running script on OS X. 15 Answers ...