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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...
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
...
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
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VIM + JSLint?
...r this. Works great. Conveniently downloadable from vim.org/scripts/script.php?script_id=2729. Note, on Windows you'll need to install Ruby.
– mm2001
Mar 1 '11 at 19:33
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How to screenshot website in JavaScript client-side / how Google did it? (no need to access HDD) [du
...o get the outer HTML and pass it to GrabzIt's API.
– PHP Rocks
May 11 '18 at 10:34
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Remove Server Response Header IIS7
...tFiltering> <denyUrlSequences> <add sequence="xmlrpc.php" /> </denyUrlSequences> </requestFiltering> </security> once I added "requestFiltering" server error appears. If i remove "requestFiltering " it works fine. I want to hide IIS and it's version d...
Which regular expression operator means 'Don't' match this character?
...its while [\D] matches anything but the 0-9 digits, and so on.
If you use PHP you can take a look at the regex character classes documentation.
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How to check if field is null or empty in MySQL?
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If you would like to check in PHP , then you should do something like :
$query_s =mysql_query("SELECT YOURROWNAME from `YOURTABLENAME` where name = $name");
$ertom=mysql_fetch_array($query_s);
if ('' !== $ertom['YOURROWNAME']) {
//do your action
ech...
How to encode URL parameters?
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With PHP
echo urlencode("http://www.image.com/?username=unknown&password=unknown");
Result
http%3A%2F%2Fwww.image.com%2F%3Fusername%3Dunknown%26password%3Dunknown
With Javascript:
var myUrl = "http://www.image.com/?user...
How to sort an array of objects by multiple fields?
...nding on the parser. I made a gist and test suite.
– php_nub_qq
Sep 21 '17 at 17:18
Based on the sample data it looks ...