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PHP: How to remove all non printable characters in a string?

...: What about str_replace? preg_replace is pretty efficient, but if you're doing this operation a lot, you could build an array of chars you want to remove, and use str_replace as noted by mgutt below, e.g. //build an array we can re-use across several operations $badchar=array( // control char...
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Amazon S3 boto - how to create a folder?

... @BoppityBop: There is no concept of folders in S3. S3 does not have folders, even though the management console and many tools do represent keys with slashes as such. See Working with Folders and read the part: "So the console uses object key names to present folders and hierarc...
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Python SQL query string formatting

...o build SQL statements using python's String Literal Concatenation (http://docs.python.org/), which could be qualified a somewhere between Option 2 and Option 4 Code Sample: sql = ("SELECT field1, field2, field3, field4 " "FROM table " "WHERE condition1=1 " "AND condition2=2;"...
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Ajax request returns 200 OK, but an error event is fired instead of success

...s better if you post it as another question. But short answer: two ways of doing this (i) instead of $.ajax you can try $.getScript. Inside the server side C# script just put alert('Record Deleted'); (no <script> tag) and set the ContentType of your C# script to text/javascript. $.ajax might a...
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Vim: insert the same characters across multiple lines

...mode (Ctrlv). Press j three times (or 3j). Press I (capital i). Type in vendor_. Note: It will only update the screen in the first line - until Esc is pressed (6.), at which point all lines will be updated. Press Esc. An uppercase I must be used rather than a lowercase i, because the lowercase i...
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Useful code which uses reduce()? [closed]

Does anyone here have any useful code which uses reduce() function in python? Is there any code other than the usual + and * that we see in the examples? ...
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Simple Pivot Table to Count Unique Values

This seems like a simple Pivot Table to learn with. I would like to do a count of unique values for a particular value I'm grouping on. ...
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Is there an Eclipse line-width marker?

... Look in Windows / Preferences (at least on Windows - IIRC it moves around for different operating systems) then: General -> Editors -> Text Editors -> Show Print Margin Tick this and it should show the line. As a quick way ...
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How to remove a single, specific object from a ConcurrentBag?

With the new ConcurrentBag<T> in .NET 4, how do you remove a certain, specific object from it when only TryTake() and TryPeek() are available? ...
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Pod install is staying on “Setting up CocoaPods Master repo”

... pod setup fetches whole repo with history when you first time run it. You don't need that commit history. pod setup Ctrl +C cd ~/.cocoapods/repos git clone --depth 1 https://github.com/CocoaPods/Specs.git master It takes around 2 mins on decent network connection (4Mbps). master directory is ar...