A developer's guide to migrating from PHP 4 to PHP 5

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A developer's guide to migrating from PHP 4 to PHP 5

10-04-2006, 10:29 AM,

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mandy Offline

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A developer's guide to migrating from PHP 4 to PHP 5

Quote: With the new language features of PHP V5, you can significantly improve your code's maintainability and stability. Learn how to migrate code developed in PHP V4 to V5 while taking advantage of these new features.

PHP V5 is a quantum step up from V4. The new language features make building reliable and maintaining class libraries much easier. In addition, the reworking of the standard libraries helped bring PHP more in line with its cousin Web languages, such as the Java programming language. Take a tour through some of PHP's new object-oriented features and learn how to migrate existing PHP V4 code into V5.

First, a bit about the new language features and how PHP's creators have changed the approach to objects from PHP V4. The idea with V5 was to create an industrial-strength language for Web application development. That meant understanding the limitations of PHP V4, then pulling known good language constructs from other languages (such as the Java, C#, C++, Ruby, and Perl languages) and incorporating them into PHP...

full article: http://www-128.ibm.com/developerworks/op...P4-to-PHP5

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