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Removed, incompatible, and deprecated functionality


From:

PHP 5.5 First Look

with Jon Peck

Video: Removed, incompatible, and deprecated functionality

Sometimes functionality needs to be gracely retired. These changes will have very little impact on most people. But it's still important to a small subset of users. Windows XP and Windows 2003 support is now officially removed from PHP. Additionally PHP no longer supports functions that return PHP logo identifiers. Do a quick rep of your code base for the following functions, php logo guid, php easter egg logo guid, php real logo guid, and zend logo guid.
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Watch the Online Video Course PHP 5.5 First Look
42m 29s Intermediate Jun 14, 2013

Viewers: in countries Watching now:

Join author Jon Peck as he demonstrates new functionality in PHP 5.5, including generators, the try-catch-finally execution model, and a brand-new password hashing API. A number of existing behaviors, such as the foreach() and empty() functions, have also been updated, and Jon explores what changed and how it can be used. Throughout this course, you'll learn to add new functionality to a simple deck of cards class using these new and updated features, and how to use them for the basis of your own project.

Topics include:
  • Using generators to create simple iterators
  • Dereferencing strings and arrays
  • Enhancing security with the password hashing API
  • Replacing APC with OPcache
  • Normalizing Boolean and unpack() behavior
  • Surveying the removed, incompatible, and deprecated functionality
Subject:
Developer
Software:
PHP
Author:
Jon Peck

Removed, incompatible, and deprecated functionality

Sometimes functionality needs to be gracely retired. These changes will have very little impact on most people. But it's still important to a small subset of users. Windows XP and Windows 2003 support is now officially removed from PHP. Additionally PHP no longer supports functions that return PHP logo identifiers. Do a quick rep of your code base for the following functions, php logo guid, php easter egg logo guid, php real logo guid, and zend logo guid.

If you have a non English non ASCII code base then you should be aware that case and sensitivity is no longer locale specific. Matching for function, class and constant names now follows ASCII rules which improves support for languages such as Turkish. If you have non ASCII characters in multi byte character sets in your code base, test before deploying. Now for some deprecations. Meaning, that these will be removed in future releases. The first is the original MySQL extension, ext mysql.

Instead use the MySQLi improved extension or PDO MySQL extension, preg replaced/e modifier has been deprecated as well. You should be using preg replace callback function instead. The method international date formatter set time zone ID and function date format set time zone ID are now depricated. Use the method set time zone or the function date format set time zone instead. Mcrypt has a number of functions that have been deprecated as well including mcrypt cbc, mcrypt cfb, mcrypt ecb and mcrypt ofb.

If you're using those, you should be using mcrypt generic and mdecrypt generic instead. That pretty much wraps up the major functional changes in PHP 5.5. In this chapter, I've combined for each with list I've checked function return values with empty, then discussed how boolean and unpacked behavior has been normalized. And finally, reviewed removed, incompatible, and deprecated functionality.

Find answers to the most frequently asked questions about PHP 5.5 First Look .


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Q: How do I import the php55.sql file into MySQL?
A: Copy the php55.sql file from the Exercise Files folder to somewhere you can access it at the command line. (In this course, that's the 'sandbox' folder.)
 
Then type:
mysql -user=sandbox -password=sandbox sandbox < php55.sql
 
Be sure to substitute your MySQL username and password if necessary.
 
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