PHP 5 Magic – __sleep() and __wakeup() methods
Hello Friends,
The magic method _sleep() and _wakeup() is called when an object is serialized. The magic method _sleep() and _wakeup() provides a method to clean up and restore objects before being serialized.
Working with _sleep()
_sleep() magic method is called when the object of a class is about to be serialized. This magic method _sleep() does not accept any parameter and returns an array. The array should contain a list of class members that should be serialized. This means that if you don’t wish to serialize a particular class member, you should not include it in the array. Look at the example below: Continue reading »
PHP 5 Magic – _clone() method
Before I begin to explain the use of a _clone() method, lets try and understand what does object cloning mean.
To clone an object means to create a duplicate of an object. With regular variables $a = $b means that a new variable $a gets created that contains the value of $b. This means that 2 variables get created.
With objects $obj2 = $obj1 does not mean that a new object i.e. $obj2 gets created. When we execute $obj2 = $obj1, the reference of $obj1 is assigned to $obj2. This means that $obj1 and $obj2 point to the same memory space. Look at the diagram below. Continue reading »
Free Download PHP Books
Hello Friends !
As you all know by this site, I am trying to provide you the knowledge of PHP.
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Domain Name Availability Checker PHP Script
Hello Friends. Yesterday when i was surfing, i found one very useful PHP Script named Domain Name Availability Chacker.
Domain Name availability Chacker Script is very easy to install if your server is PHP enabled. This script is very simple to use. The domain name availability checker also checks bulk domain names in just a single click.
Just input the desired domain name in the text box and click “check domain availability” button to get the results on the fly.
You have to just copy this script then paste it and run this PHP script.
PHP Script is Shown below : Continue reading »
Enabling mod rewrite in XAMPP
URL Rewriting is used for SEO purpose and also for security purpose.
If you use XAMPP and url rewriting is not working, then you have to load mod rewrite in you XAMPP.
Here I write steps to enable mod_rewrite in your system.
- Go to Drive where XAMPPÂ directory saved (in Drive C or D or any).
- Go to this path xampp\apache\conf
- Edit httpd.conf.
- Find the line which contains #LoadModule rewrite_module modules/mod_rewrite.so
- Remove comment(#).
- Then stop XAMPP and Refresh it.
Thats It. Url rewriting is Working.
Enjoy.
How To Start PHP ?
If You are new in Web Developement, Then first you have to learn HTML.
Click Here to study all about HTML.
What Is PHP ?
PHP means – Personal Home Page
PHP is a powerful server side scripting language. Syntex of PHP is similar to C language. PHP is also use OOPs concepts.
PHP code is embeded in HTML.
If you are new for web, then first you have to learn HTML.
PHP code is written as follows :
1 <?php
echo “Hello !”;
?>
You can also write code as :
2 <?
echo “Hello !”;
?>
In some cases 2nd code is not working.(Depend on Server).
So please make habit to write PHP script as 1st code.
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