Some theory

As you know there are two types of methods in PHP classes: static and non-static. To be called a non-static method needs an instance of its class, and static method can be called without instantiating of the class. 

In the meantime there are two very common questions:

• When to use non-static methods and when to use static methods?
• Is there any performance difference between static and non-static methods?

These are very common dilemmas among PHP developers. Most of developers guess that static methods must work faster because there is no object instance with all its properties involved to the call. Sounds logical. Is that actually true?

As I already mentioned above, and as you already know, the main difference between static and non-static metods is that static methods do not need an instance of the class to be called in the code. It means that for static methods there is no need to create object and keep in the memory. So, at least we can save some memory which can also affect the performance? Hmmm... we'll see...

So, it's time to do some very simple experiments for further analysis.

According to China Times Apple has already started produciton of the long-rumored wearable computer watch known as the iWatch.

Apple has never officially announced a new wearable device characteristics. However, the company's CEO Tim Cook hinted that it would not be similar to "smart glasses" idea. According to media reports, the device will be have the look of an average dimension bracelet width of with color touchscreen.

It's been said that IWatch release was scheduled for the summer 2014, so it is more-llikely that some of the components for the gadget are ready. Components are typical for various devices such as MP3-players. However, this information is not sufficient to predict the shape of the future gadget.

Apparently, the person who wrote this code has never heard about regular expressions. :)

<?php
$find = str_replace(",", "", $find);
$find = str_replace(".", "", $find);
$find = str_replace("/", "", $find);
$find = str_replace(" ", "", $find);
$find = str_replace("-", "", $find);
$find = str_replace("+", "", $find);
$find = str_replace("#", "", $find);
?>

Please, never repeat this! :)