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Prefer composition over inheritance?
...ifference, it's easier to explain.
Procedural Code
An example of this is PHP without the use of classes (particularly before PHP5). All logic is encoded in a set of functions. You may include other files containing helper functions and so on and conduct your business logic by passing data around i...
Increasing the maximum number of TCP/IP connections in Linux
...o move session info from an application level session storage to redis via PHP. For some reason, I could not add more than 28230 sessions without adding lots of sleep in one go, with no errors seen either in php or on redis logs. We broke our heads on this for an entire day till I thought maybe prob...
Include jQuery in the JavaScript Console
...s there an easy way to include jQuery in the Chrome JavaScript console for sites that do not use it? For example, on a website I would like to get the number of rows in a table. I know this is really easy with jQuery.
...
jQuery.inArray(), how to use it right?
...e is present in an array, follow the below practice:
myArray = new Array("php", "tutor");
if( $.inArray("php", myArray) !== -1 ) {
alert("found");
}
Reference
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MySQL query String contains
...ttacks. Also, mysql_real_escape_string is going to be deprecated in future PHP releases.
– Jack Tuck
Feb 3 '14 at 21:24
11
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How to select multiple files with ?
...
<form enctype='multipart/form-data' method='POST' action='submitFormTo.php'>
<input type='file' name='files[]' multiple />
<button type='submit'>Submit</button>
</form>
Make sure you have the enctype='multipart/form-data' attribute in your <form> tag, ...
How to prevent buttons from submitting forms
...xample: on a Login ... with some restrictions... like not allow to be used PHP sessions and neither cookies are allowed!
So any link must be converted to such form submit, so the login data is not lost.
When no login is yet done, it must also work. So no validation must be performed on links.
But I...
Why use a ReentrantLock if one can use synchronized(this)?
...you could use synchronized(this) instead of ReentrantReadWriteLock but the opposite is not always true.
If you'd like to better understand what makes ReentrantReadWriteLock special look up some information about producer-consumer thread synchronization.
In general you can remember that whole-metho...
How can I run a directive after the dom has finished rendering?
...
It depends on how your $('site-header') is constructed.
You can try to use $timeout with 0 delay. Something like:
return function(scope, element, attrs) {
$timeout(function(){
$('.main').height( $('.site-header').height() - $('.site-foo...
Is optimisation level -O3 dangerous in g++?
...
I just use something like the opposite. I always use -Os or -O2 (sometimes O2 generates a smaller executable).. after profiling I use O3 on parts of the code that takes more execution time and that alone can give up to 20% more speed.
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