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MySQL: how to get the difference between two timestamps in seconds

...ifference between two timestamps in seconds, or would I need to do that in PHP? And if so, how would I go about doing that? ...
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How do I check if a column is empty or null in MySQL?

...if there is something null, why is that so? – noobie-php Mar 17 '16 at 11:01 the NULLIF checks fieldname for the empty...
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Disable validation of HTML5 form elements

... @user1569050 For example in frameworks like CakePHP, it will use the novalidate="novalidate" method when you set the novalidate => true in the $options array of the FormHelper::create(). Thanks bassim for the extra info :) – Jelmer ...
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How to copy to clipboard in Vim?

...e support. Download a different version as per ubuntuforums.org/showthread.php?t=1686955 – Sparhawk Aug 3 '13 at 5:39 67 ...
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Java equivalent to C# extension methods

...ll more modern languages allow for some kind existing class extension: C#, php, objective-c, javascript. Java surely shows its age here. Imagine you want to write a JSONObject to disk. Do you call jsonobj.writeToDisk() or someunrelatedclass.writeToDisk(jsonobj) ? – woens ...
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How to place the ~/.composer/vendor/bin directory in your PATH?

...and it worked for me. curl -sS https://getcomposer.org/installer | sudo php -- --install-dir=/usr/local/bin --filename=composer share | improve this answer | follow ...
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Convert NSData to String?

...our binary data into base 64 (http://tomeko.net/online_tools/hex_to_base64.php?lang=en) and compare it to the private key in your cert file after using the following command and checking the output of mypkey.pem: openssl pkcs12 -in myCert.p12 -nocerts -nodes -out mypkey.pem I referenced your ques...
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Why does make think the target is up to date?

...going to be part of issue 8 of the POSIX standard austingroupbugs.net/view.php?id=523 – osvein Jul 29 '17 at 9:31  |  show 1 more comment ...
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How do I do word Stemming or Lemmatization?

... Martin Porter's official page contains a Porter Stemmer in PHP as well as other languages. If you're really serious about good stemming though you're going to need to start with something like the Porter Algorithm, refine it by adding rules to fix incorrect cases common to your data...
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Inline functions vs Preprocessor macros

...nline functions. -- good article: http://www.codeguru.com/forum/showpost.php?p=1093923&postcount=1 ; share | improve this answer | follow | ...