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Cannot pass null argument when using type hinting
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In my opinion this is a poor language construct. 1. In other languages null has the ability to be of any type thus making null a valid argument in this case. 2: Php is using a default value for an argument to specify that null i...
Difference between null and empty (“”) Java String
...ull.concat("a") it gives the null pointer exception. what is the reason in my first case null+"a"; is working.
– Ved Prakash
Sep 14 '19 at 16:23
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How to free memory in Java?
...ta Cruz What do you mean it does not free memory? I just tested it out on my program that seemed to have a leak and the ram usage seemed to stabilize? And Daniel just said it only suggests it then how come the percentage of ram used always stabilized each time I called the method. You people are co...
Redis - Connect to Remote Server
...uctions on the Quick Start guide on http://redis.io/topics/quickstart on my Ubuntu 10.10 server. I'm running the service as dameon (so it can be run by init.d)
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Include CSS,javascript file in Yii Framework
...ax file create conflict in calling js functions.
For more detail Look at my blog article
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How to increment datetime by custom months in python without using library [duplicate]
...e. If you are worried about hours, minutes and seconds you need to modify my code to use datetime and copy hours, minutes and seconds from the source to the result.
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Difference between if () { } and if () : endif;
...r code and don't want to have a lot of echos in your code. For example, in my .phtml files (Zend Framework) I will write something like this:
<?php if($this->value): ?>
Hello
<?php elseif($this->asd): ?>
Your name is: <?= $this->name ?>
<?php else: ?>
You don't have...
How to get back to most recent version in Git?
...branch with the previous modifications and commit them:
$ git checkout -b my_new_branch
$ git add my_file.ext
$ git commit -m "My cool msg"
After this you can go back to your master branch (most recent version):
$ git checkout master
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How to 'grep' a continuous stream?
...ing BSD grep (FreeBSD, Mac OS X etc.)
tail -f file | grep --line-buffered my_pattern
You don't need to do this for GNU grep (used on pretty much any Linux) as it will flush by default (YMMV for other Unix-likes such as SmartOS, AIX or QNX).
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What's the difference between unit, functional, acceptance, and integration tests? [closed]
...slightly different answers. I've read about the subject a lot, and here's my distillation; again, these are slightly wooly and others may disagree.
Unit Tests
Tests the smallest unit of functionality, typically a method/function (e.g. given a class with a particular state, calling x method on the...