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Codeigniter - no input file specified

... change above line according to your application directory like if you application is not on root directory , write following code in place of above line RewriteRule ^(.*)$ /sub-directory/index.php?/$1 [L,QSA] – skovy Oct 2...
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What does the PHP error message “Notice: Use of undefined constant” mean?

... You should quote your array keys: $department = mysql_real_escape_string($_POST['department']); $name = mysql_real_escape_string($_POST['name']); $email = mysql_real_escape_string($_POST['email']); $message = mysql_real_escape_string($_POST['message']); As is, it was looking ...
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Rename specific column(s) in pandas

...nditional expressions like: df.columns = ['log(gdp)' if x=='gdp' else 'cap_mod' if x=='cap' else x for x in df.columns] Or, construct a mapping using a dictionary and perform the list-comprehension with it's get operation by setting default value as the old name: col_dict = {'gdp': 'log(gdp)', '...
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How to reverse a string in Go?

...ints. n := 0 rune := make([]rune, len(input)) for _, r := range input { rune[n] = r n++ } rune = rune[0:n] // Reverse for i := 0; i < n/2; i++ { rune[i], rune[n-1-i] = rune[n-1-i], rune[i]...
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Convert a series of parent-child relationships into a hierarchical tree?

...ree to print out an unordered list: function printTree($tree) { if(!is_null($tree) && count($tree) > 0) { echo '<ul>'; foreach($tree as $node) { echo '<li>'.$node['name']; printTree($node['children']); echo '</li>'...
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Ruby on Rails: Where to define global constants?

I'm just getting started with my first Ruby on Rails webapp. I've got a bunch of different models, views, controllers, and so on. ...
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Ruby: require vs require_relative - best practice to workaround running in both Ruby =1.

... this post. https://github.com/appoxy/aws/blob/master/lib/awsbase/require_relative.rb unless Kernel.respond_to?(:require_relative) module Kernel def require_relative(path) require File.join(File.dirname(caller[0]), path.to_str) end end end This allows you to use require_relati...
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ImportError: numpy.core.multiarray failed to import

... following command in my Mac terminal: python -c "import numpy;print(numpy.__version__);print(numpy.__file__)"; This command gave me the version and location of numpy that I was using (turned out it was 1.6.2). I went to this location and manually replaced it with the numpy folder for 1.8, which re...
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ASP.NET MVC: No parameterless constructor defined for this object

...ot know if it makes sense... something like that. – H_He Jul 28 '14 at 11:52 1 Tuples... maybe fo...
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Check if a folder exist in a directory and create them using C#

How can I check if directory C:/ contains a folder named MP_Upload , and if it does not exist, create the folder automatically? ...