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PHP cURL vs file_get_contents

... file_get_contents() is a simple screwdriver. Great for simple GET requests where the header, HTTP request method, timeout, cookiejar, redirects, and other important things do not matter. fopen() with a stream context or cURL with setopt are powerdrills with every bit and option you can think ...
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Show a PDF files in users browser via PHP/Perl

I want to show my users PDF files. The reason why I use cgi to show the pdf is I want to track the clicks for the pdf, and cloak the real location of the saved pdf. ...
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How to see if an NSString starts with a certain other string?

I am trying to check to see if a string that I am going to use as URL starts with http. The way I am trying to check right now doesn't seem to be working. Here is my code: ...
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SQL Server NOLOCK and joins

Background: I have a performance-critical query I'd like to run and I don't care about dirty reads. 3 Answers ...
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How to get equal width of input and select fields

On the form, I have one select and two input fields. These elements are vertically aligned. Unfortunately, I can't get equal width of these elements. ...
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Understanding :source option of has_one/has_many through of Rails

Please help me in understanding the :source option of has_one/has_many :through association. The Rails API explanation makes very little sense to me. ...
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Different results with Java's digest versus external utilities

I have written a simple Java class to generate the hash values of the Windows Calculator file. I am using Windows 7 Professional with SP1 . I have tried Java 6.0.29 and Java 7.0.03 . Can someone tell me why I am getting different hash values from Java versus (many!) external utilities and/or ...
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How does MongoDB sort records when no sort order is specified?

When we run a Mongo find() query without any sort order specified, what does the database internally use to sort the results? ...
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Bash if statement with multiple conditions throws an error

... Use -a (for and) and -o (for or) operations. tldp.org/LDP/Bash-Beginners-Guide/html/sect_07_01.html Update Actually you could still use && and || with the -eq operation. So your script would be like this: my_error...
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Difference between HEAD and master

... master is a reference to the end of a branch. By convention (and by default) this is usually the main integration branch, but it doesn't have to be. HEAD is actually a special type of reference that points to another reference. It may point to master or it may not (it will point to whichever bra...