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What is non-blocking or asynchronous I/O in Node.js?

...chronous, blocking operations is how some web servers like ones in Java or PHP handle IO or network requests. If your code reads from a file or the database, your code "blocks" everything after it from executing. In that period, your machine is holding onto memory and processing time for a thread th...
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Show a PDF files in users browser via PHP/Perl

... <?php header('Content-type: application/pdf'); header('Content-Disposition: inline; filename="the.pdf"'); readfile('/dir/to/the.pdf'); ?> – dimassony Jan 13 '11 at 13:10 ...
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How to compare two NSDates: Which is more recent?

... NSDate *retVal; NSDateComponents *components = [[NSDateComponents alloc] init]; [components setDay:days]; NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar]; retVal = [gregorian dateByAddingComponents:components toDate:self options:0]; ...
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`Apache` `localhost/~username/` not working

... FYI, if you're trying to use PHP on Yosemite, you'll likely have to uncomment the following line from /etc/apache2/httpd.conf: LoadModule php5_module libexec/apache2/libphp5.so – Joshua Pinter Sep 6 '14 at 1:01 ...
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What is 'YTowOnt9'?

Our (PHP) framework sometimes renders hidden inputs with value YTowOnt9 . I can't find that string anywhere in the (huge) codebase, and can't figure out where it came from. I decided to Google for that particular string, and the result surprised me. Over half a million - kind of random - hits. I ...
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PHP foreach loop key value

....new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f1834703%2fphp-foreach-loop-key-value%23new-answer', 'question_page'); } ); Post as a guest ...
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Sending a JSON to server and retrieving a JSON in return, without JQuery

... } }; xhr.send(); Handling data in JSON format on the server-side using PHP <?php // Handling data in JSON format on the server-side using PHP // header("Content-Type: application/json"); // build a PHP variable from JSON sent using POST method $v = json_decode(stripslashes(file_get_contents(...
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How to find out if you're using HTTPS without $_SERVER['HTTPS']

...RVER['SERVER_PORT'] == 443; } The code is compatible with IIS. From the PHP.net documentation and user comments : 1) Set to a non-empty value if the script was queried through the HTTPS protocol. 2) Note that when using ISAPI with IIS, the value will be "off" if the request was not made ...
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Difference between array_push() and $array[] =

In the PHP manual, ( array_push ) says.. 9 Answers 9 ...
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Syntax for creating a two-dimensional array

... @Nawaz No, Arrays are Object in java and memory is allocated to Objects only by using new keyword. – roottraveller Jun 13 '17 at 9:40 ...