GMEETSOFT

Difference Between PHP4 & PHP 5

1. Soap, MySQLi and Sqlite extension introduced in php5

2. Exception handling has been introduced in PHP5 (i.e. try and catch statements)

3. Objects can iterate through foreach in PHP5

$object = new IteratorTest();

foreach ($object as $value) {

print $value;

}

4. Added public/private/protected access modifiers in PHP5

5. Introduced Unified constructor name __construct() in PHP5

6. Object destructor support by defining a __destructor() method in PHP5

7. Introduced abstract classes & methods

Good article to go through:

http://devzone.zend.com/article/1714

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