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What does @@variable mean in Ruby?

... preceded with an at sign is that it is an instance variable, like this in PHP: 5 Answers ...
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How do I find which rpm package supplies a file I'm looking for?

...am looking for a mod_files.sh file which presumably would come with the php-devel package. I guessed that yum would install the mod_files.sh file with the php-devel x86_64 5.1.6-23.2.el5_3 package, but the file appears to not to be installed on my filesystem. ...
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typecast string to integer - Postgres

...ing into an integer. Solution Create a user-defined function inspired by PHP's intval() function. CREATE FUNCTION intval(character varying) RETURNS integer AS $$ SELECT CASE WHEN length(btrim(regexp_replace($1, '[^0-9]', '','g')))>0 THEN btrim(regexp_replace($1, '[^0-9]', '','g'))::intege...
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Is there a 'foreach' function in Python 3?

... Every occurence of "foreach" I've seen (PHP, C#, ...) does basically the same as pythons "for" statement. These are more or less equivalent: // PHP: foreach ($array as $val) { print($val); } // C# foreach (String val in array) { console.writeline(val); }...
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How do I wrap text in a pre tag?

...e in a text area too if you want to copy to clipboard. The following is a php excerpt so if your not in php then the way you pack the html special chars will vary. <textarea style="font-family:monospace;" onfocus="copyClipboard(this);"><?=htmlspecialchars($codeBlock);?></textarea&gt...
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Confirm deletion in modal / dialog using Twitter Bootstrap?

...we want to have delete confirmation for: <a href="#" data-href="delete.php?id=23" data-toggle="modal" data-target="#confirm-delete">Delete record #23</a> <button class="btn btn-default" data-href="/delete.php?id=54" data-toggle="modal" data-target="#confirm-delete"> Delete re...
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How can one see the structure of a table in SQLite? [duplicate]

... If you are using PHP you can get it this way: <?php $dbname = 'base.db'; $db = new SQLite3($dbname); $sturturequery = $db->query("SELECT sql FROM sqlite_master WHERE name='foo'"); $table = $sturturequery->fetchArray...
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How do you diff a directory for only files of a specific type?

...le1 PATH1/ PATH2/ For example: find PATH1/ -type f | grep --text -vP "php$|html$" | sed 's/.*\///' | sort -u > file1 diff PATH1/ PATH2/ -rq -X file1 share | improve this answer |...
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Adding values to a C# array

...r something that can be dynamically resized, as it appears is the case for PHP (I've never actually learned it), then you may want to use a List instead of an int[]. Here's what that code would look like: List<int> terms = Enumerable.Range(0, 400).ToList(); Note, however, that you cannot si...
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Pros and Cons of Interface constants [closed]

PHP interfaces allow the definition of constants in an interface, e.g. 2 Answers 2 ...