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How to convert a string to lower case in Bash?

...uby` Or Perl (probably my favorite): b=`perl -e "print lc('$a');"` Or PHP: b=`php -r "print strtolower('$a');"` Or Awk: b=`echo "$a" | awk '{ print tolower($1) }'` Or Sed: b=`echo "$a" | sed 's/./\L&/g'` Or Bash 4: b=${a,,} Or NodeJS if you have it (and are a bit nuts...): b=`e...
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Javascript foreach loop on associative array object

...ceving, can you explain more on why not use var in loops? I come from C++/PHP background and I don't understand this. scoping does exist in the loop, but temporary, so I am not sure what you mean. – Dennis Jul 21 '16 at 21:33 ...
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What is the best collation to use for MySQL with PHP? [closed]

...gs should be the same, such as MySQL, Apache, the HTML and anything inside PHP. 11 Answers ...
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Go > operators

...y Arithmetic operators and its the same in other languages here is a basic PHP , C , Go Example GO package main import ( "fmt" ) func main() { var t , i uint t , i = 1 , 1 for i = 1 ; i < 10 ; i++ { fmt.Printf("%d << %d = %d \n", t , i , t<<i) } ...
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Are HTTP headers case-sensitive?

In a blog post I use the following PHP to set the content-type of a response: 8 Answers ...
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How can I remove duplicate rows?

...erver LEFT JOIN is less efficient than NOT EXISTS sqlinthewild.co.za/index.php/2010/03/23/… The same site also compares NOT IN vs NOT EXISTS. sqlinthewild.co.za/index.php/2010/02/18/not-exists-vs-not-in Out of the 3 I think NOT EXISTS performs best. All three will generate a plan with a self join ...
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How to take screenshot of a div with JavaScript?

... If you wish to have "Save as" dialog, just pass image into php script, which adds appropriate headers Example "all-in-one" script script.php <?php if(isset($_GET['image'])): $image = $_GET['image']; if(preg_match('#^data:image/(.*);base64,(.*)$#s', $image, $match)){ ...
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Apache: client denied by server configuration

...is that it's working fine on another server with same app/vhost and Apache/PHP versions. Different servers though - AWS Linux and Ubuntu 14.10 respectively. Strange... I guess I need to compare each server's httpd.conf files to see if there is a config difference there... – Dar...
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Str_replace for multiple items

...s: str_replace(array(':', '\\', '/', '*'), ' ', $string); Or, in modern PHP (anything from 5.4 onwards), the slighty less wordy: str_replace([':', '\\', '/', '*'], ' ', $string); share | improv...
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User recognition without cookies or local storage

...ce to increase the accuracy of your results. The NeuralMesh library for PHP allows you to generate Artificial Neural Networks. To implement Bayesian Inference, check out the following links: Implement Bayesian inference using PHP, Part 1 Implement Bayesian inference using PHP, Part 2 Implement ...