大约有 31,000 项符合查询结果（耗时：0.0376秒） [XML]
When are you supposed to use escape instead of encodeURI / encodeURIComponent?
...eURIComponent doesn't encode -_.!~*'(), causing problem in posting data to php in xml string.
For example:
<xml><text x="100" y="150" value="It's a value with single quote" />
</xml>
General escape with encodeURI
%3Cxml%3E%3Ctext%20x=%22100%22%20y=%22150%22%20value=%22It's%20a%20...
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...
How do you increase the max number of concurrent connections in Apache?
...hive.org/web/20160415001028/http://www.genericarticles.com/mediawiki/index.php?title=How_to_optimize_apache_web_server_for_maximum_concurrent_connections_or_increase_max_clients_in_apache
ServerLimit 16
StartServers 2
MaxClients 200
MinSpareThreads 25
MaxSpareThreads 75
ThreadsPerChild 25
First o...
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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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 $options array of the FormHelper::create(). Thanks bassim for the extra info :)
– Jelmer
...
How to copy to clipboard in Vim?
...e support. Download a different version as per ubuntuforums.org/showthread.php?t=1686955
– Sparhawk
Aug 3 '13 at 5:39
67
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What is the method for converting radians to degrees?
...rads -> x*pi/180
I guess if you wanted to make a function for this [in PHP]:
function convert($type, $num) {
if ($type == "rads") {
$result = $num*180/pi();
}
if ($type == "degs") {
$result = $num*pi()/180;
}
return $result;
}
Yes, that coul...
Inline functions vs Preprocessor macros
...nline functions.
-- good article:
http://www.codeguru.com/forum/showpost.php?p=1093923&postcount=1
;
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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?
...